Extract .nu-env tests and more granularity (#3078)

The autoenv logic mutates environment variables in the running session as
it operates and decides what to do for trusted directories containing `.nu-env`
files. Few of the ways to interact with it were all in a single test function.

We separate out all the ways that were done in the single test function to document
 it better. This will greatly help once we start refactoring our way out from setting
 environment variables this way to just setting them to `Scope`.

This is part of an on-going effort to keep variables (`PATH` and `ENV`)
in our `Scope` and rely on it for everything related to variables.

We expect to move away from setting (`std::*`) envrironment variables in the current
running process. This is non-trivial since we need to handle cases from vars
coming in from the outside world, prioritize, and also compare to the ones
we have both stored in memory and in configuration files.

Also to send out our in-memory (in `Scope`) variables properly to external
programs once we no longer rely on `std::env` vars from the running process.

.azure/azure-pipelines.yml

@@ -1,11 +1,20 @@
 trigger:
-  - master
+  - main
 
 strategy:
   matrix:
     linux-stable:
       image: ubuntu-18.04
       style: 'unflagged'
+    linux-minimal:
+      image: ubuntu-18.04
+      style: 'minimal'
+    linux-extra:
+      image: ubuntu-18.04
+      style: 'extra'
+    linux-wasm:
+      image: ubuntu-18.04
+      style: 'wasm'
     macos-stable:
       image: macos-10.14
       style: 'unflagged'
@@ -34,29 +43,40 @@ steps:
       if [ -e /etc/debian_version ]
       then
         sudo apt-get -y install libxcb-composite0-dev libx11-dev
+        sudo npm install -g wasm-pack
       fi
       if [ "$(uname)" == "Darwin" ]; then
         curl https://sh.rustup.rs -sSf | sh -s -- -y --no-modify-path --default-toolchain "stable"
+        echo "Installing clippy"
+        rustup component add clippy --toolchain stable-x86_64-apple-darwin
         export PATH=$HOME/.cargo/bin:$PATH
       fi
-      rustup update
-      rustc -Vv
-      echo "##vso[task.prependpath]$HOME/.cargo/bin"
-      rustup component add rustfmt
+  #     rustup update
+  #     rustc -Vv
+  #     echo "##vso[task.prependpath]$HOME/.cargo/bin"
+  #     rustup component add rustfmt
     displayName: Install Rust
-  - bash: RUSTFLAGS="-D warnings" cargo test --all --features stable,test-bins
+  - bash: RUSTFLAGS="-D warnings" cargo test --all
     condition: eq(variables['style'], 'unflagged')
     displayName: Run tests
-  - bash: RUSTFLAGS="-D warnings" cargo clippy --all --features=stable -- -D clippy::result_unwrap_used -D clippy::option_unwrap_used
+  - bash: RUSTFLAGS="-D warnings" cargo clippy --all -- -D clippy::unwrap_used
     condition: eq(variables['style'], 'unflagged')
     displayName: Check clippy lints
-  - bash: NUSHELL_ENABLE_ALL_FLAGS=1 RUSTFLAGS="-D warnings" cargo test --all --features stable,test-bins
+  - bash: RUSTFLAGS="-D warnings" cargo test --all
     condition: eq(variables['style'], 'canary')
     displayName: Run tests
-  - bash: NUSHELL_ENABLE_ALL_FLAGS=1 RUSTFLAGS="-D warnings" cargo clippy --all --features=stable -- -D clippy::result_unwrap_used -D clippy::option_unwrap_used
+  - bash: cd samples/wasm && wasm-pack build
+    condition: eq(variables['style'], 'wasm')
+    displayName: Wasm build
+  - bash: RUSTFLAGS="-D warnings" cargo clippy --all -- -D clippy::unwrap_used
     condition: eq(variables['style'], 'canary')
     displayName: Check clippy lints
+  - bash: RUSTFLAGS="-D warnings" cargo test --all --no-default-features --features=rustyline-support
+    condition: eq(variables['style'], 'minimal')
+    displayName: Run tests
+  - bash: RUSTFLAGS="-D warnings" cargo test --all --features=extra
+    condition: eq(variables['style'], 'extra')
+    displayName: Run tests
   - bash: cargo fmt --all -- --check
     condition: eq(variables['style'], 'fmt')
     displayName: Lint
-    

.cargo/config

@@ -1,3 +0,0 @@
-[build]
-
-#rustflags = ["--cfg", "coloring_in_tokens"]

.cargo/config.toml

@@ -0,0 +1,6 @@
+# use LLD as linker on Windows because it could be faster
+# for full and incremental builds compared to default
+
+[target.x86_64-pc-windows-msvc]
+#linker = "lld-link.exe"
+rustflags = ["-C", "link-args=-stack:10000000"]

.circleci/config.yml

@@ -27,7 +27,7 @@ orbs:
 workflows:
   version: 2.0
 
-  # This builds on all pull requests to test, and ignores master
+  # This builds on all pull requests to test, and ignores main
   build_without_deploy:
     jobs:
       - docker/publish:
@@ -38,8 +38,8 @@ workflows:
           extra_build_args: --cache-from=quay.io/nushell/nu-base:devel
           filters:
             branches:
-              ignore: 
-                - master
+              ignore:
+                - main
           before_build:
             - pull_cache
           after_build:
@@ -73,7 +73,7 @@ workflows:
             branches:
               ignore: /.*/
             tags:
-              only: /^v.*/
+              only: /^\d+\.\d+\.\d+$/
           before_build:
             - run: docker pull quay.io/nushell/nu:latest
             - run: docker pull quay.io/nushell/nu-base:latest
@@ -98,11 +98,11 @@ workflows:
                    docker push quay.io/nushell/nu
 
 
-  # publish devel to Docker Hub on merge to master (doesn't build --release)
+  # publish devel to Docker Hub on merge to main (doesn't build --release)
   build_with_deploy_devel:
     jobs:
 
-      # Deploy devel tag on merge to master
+      # Deploy devel tag on merge to main
       - docker/publish:
           image: nushell/nu-base
           registry: quay.io
@@ -113,7 +113,7 @@ workflows:
             - pull_cache
           filters:
             branches:
-              only: master
+              only: main
           after_build:
             - run:
                 name: Build Multistage (smaller) container
@@ -137,7 +137,7 @@ workflows:
           filters:
             branches:
               only:
-                - master
+                - main
     jobs:
       - docker/publish:
           image: nushell/nu-base

.github/ISSUE_TEMPLATE/bug_report.md

@@ -12,9 +12,9 @@ A clear and concise description of what the bug is.
 
 **To Reproduce**
 Steps to reproduce the behavior:
-1. 
-2. 
-3. 
+1.
+2.
+3.
 
 **Expected behavior**
 A clear and concise description of what you expected to happen.
@@ -23,8 +23,25 @@ A clear and concise description of what you expected to happen.
 If applicable, add screenshots to help explain your problem.
 
 **Configuration (please complete the following information):**
- - OS: [e.g. Windows]
- - Version [e.g. 0.4.0]
- - Optional features (if any)
 
-Add any other context about the problem here.
+Run `version | pivot` and paste the output to show OS, features, etc.
+
+```
+> version | pivot
+╭───┬────────────────────┬───────────────────────────────────────────────────────────────────────╮
+│ # │ Column0            │ Column1                                                               │
+├───┼────────────────────┼───────────────────────────────────────────────────────────────────────┤
+│ 0 │ version            │ 0.24.1                                                                │
+│ 1 │ build_os           │ macos-x86_64                                                          │
+│ 2 │ rust_version       │ rustc 1.48.0                                                          │
+│ 3 │ cargo_version      │ cargo 1.48.0                                                          │
+│ 4 │ pkg_version        │ 0.24.1                                                                │
+│ 5 │ build_time         │ 2020-12-18 09:54:09                                                   │
+│ 6 │ build_rust_channel │ release                                                               │
+│ 7 │ features           │ ctrlc, default, directories, dirs, git, ichwh, ptree, rich-benchmark, │
+│   │                    │ rustyline, term, uuid, which, zip                                     │
+╰───┴────────────────────┴───────────────────────────────────────────────────────────────────────╯
+```
+
+
+**Add any other context about the problem here.**

.github/workflows/docker-publish.yml

@@ -13,7 +13,7 @@ jobs:
         - x86_64-unknown-linux-musl
         - x86_64-unknown-linux-gnu
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Install rust-embedded/cross
       env: { VERSION: v0.1.16 }
       run: >-
@@ -24,7 +24,7 @@ jobs:
       run: |
         cross build --target ${{ matrix.arch }} --release
         # leave only the executable file
-        rm -rd target/${{ matrix.arch }}/release/{*/*,*.d,*.rlib,.fingerprint}
+        rm -frd target/${{ matrix.arch }}/release/{*/*,*.d,*.rlib,.fingerprint}
         find . -empty -delete
     - uses: actions/upload-artifact@master
       with:
@@ -52,17 +52,17 @@ jobs:
         - glibc
         - musl
         include:
-        - { tag: alpine,           base-image: alpine,                     arch: x86_64-unknown-linux-musl, plugin: true    }
-        - { tag: slim,             base-image: 'debian:stable-slim',       arch: x86_64-unknown-linux-gnu,  plugin: true    }
-        - { tag: debian,           base-image: debian,                     arch: x86_64-unknown-linux-gnu,  plugin: true    }
-        - { tag: glibc-busybox,    base-image: 'busybox:glibc',            arch: x86_64-unknown-linux-gnu,  use-patch: true }
-        - { tag: musl-busybox,     base-image: 'busybox:musl',             arch: x86_64-unknown-linux-musl,                 }
-        - { tag: musl-distroless,  base-image: 'gcr.io/distroless/static', arch: x86_64-unknown-linux-musl,                 }
-        - { tag: glibc-distroless, base-image: 'gcr.io/distroless/cc',     arch: x86_64-unknown-linux-gnu,  use-patch: true }
-        - { tag: glibc,            base-image: scratch,                    arch: x86_64-unknown-linux-gnu,                  }
-        - { tag: musl,             base-image: scratch,                    arch: x86_64-unknown-linux-musl,                 }
+        - { tag: alpine,           base-image: alpine,                     arch: x86_64-unknown-linux-musl, plugin: true,  use-patch: false}
+        - { tag: slim,             base-image: 'debian:stable-slim',       arch: x86_64-unknown-linux-gnu,  plugin: true,  use-patch: false}
+        - { tag: debian,           base-image: debian,                     arch: x86_64-unknown-linux-gnu,  plugin: true,  use-patch: false}
+        - { tag: glibc-busybox,    base-image: 'busybox:glibc',            arch: x86_64-unknown-linux-gnu,  plugin: false, use-patch: true }
+        - { tag: musl-busybox,     base-image: 'busybox:musl',             arch: x86_64-unknown-linux-musl, plugin: false, use-patch: false}
+        - { tag: musl-distroless,  base-image: 'gcr.io/distroless/static', arch: x86_64-unknown-linux-musl, plugin: false, use-patch: false}
+        - { tag: glibc-distroless, base-image: 'gcr.io/distroless/cc',     arch: x86_64-unknown-linux-gnu,  plugin: false, use-patch: true }
+        - { tag: glibc,            base-image: scratch,                    arch: x86_64-unknown-linux-gnu,  plugin: false, use-patch: false}
+        - { tag: musl,             base-image: scratch,                    arch: x86_64-unknown-linux-musl, plugin: false, use-patch: false}
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - uses: actions/download-artifact@master
       with: { name: '${{ matrix.arch }}', path: target/release }
     - name: Build and publish exact version

.github/workflows/release.yml

@@ -0,0 +1,286 @@
+name: Create Release Draft
+
+on:
+  push:
+    tags: ['[0-9]+.[0-9]+.[0-9]+*']
+
+jobs:
+  linux:
+    name: Build Linux
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Install libxcb
+        run: sudo apt-get install libxcb-composite0-dev
+
+      - name: Set up cargo
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+
+      - name: Build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --all --features=extra
+
+      - name: Create output directory
+        run: mkdir output
+
+      - name: Copy files to output
+        run: |
+          cp target/release/nu target/release/nu_plugin_* output/
+          cp README.build.txt output/README.txt
+          cp LICENSE output/LICENSE
+          rm output/*.d
+          rm output/nu_plugin_core_*
+          rm output/nu_plugin_extra_*
+
+      # Note: If OpenSSL changes, this path will need to be updated
+      - name: Copy OpenSSL to output
+        run: cp /usr/lib/x86_64-linux-gnu/libssl.so.1.1 output/
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: linux
+          path: output/*
+
+  macos:
+    name: Build macOS
+    runs-on: macos-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Set up cargo
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+
+      - name: Build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --all --features=extra
+
+      - name: Create output directory
+        run: mkdir output
+
+      - name: Copy files to output
+        run: |
+          cp target/release/nu target/release/nu_plugin_* output/
+          cp README.build.txt output/README.txt
+          cp LICENSE output/LICENSE
+          rm output/*.d
+          rm output/nu_plugin_core_*
+          rm output/nu_plugin_extra_*
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: macos
+          path: output/*
+
+  windows:
+    name: Build Windows
+    runs-on: windows-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Set up cargo
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+
+      - name: Add cargo-wix subcommand
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: cargo-wix
+
+      - name: Build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --all --features=extra
+
+      - name: Create output directory
+        run: mkdir output
+
+      - name: Download Less Binary
+        run: Invoke-WebRequest -Uri "https://github.com/jftuga/less-Windows/releases/download/less-v562.0/less.exe" -OutFile "target\release\less.exe"
+
+      - name: Download Less License
+        run: Invoke-WebRequest -Uri "https://raw.githubusercontent.com/jftuga/less-Windows/master/LICENSE" -OutFile "target\release\LICENSE-for-less.txt"
+
+      - name: Copy files to output
+        run: |
+          cp target\release\nu.exe output\
+          cp LICENSE output\
+          cp target\release\LICENSE-for-less.txt output\
+          rm target\release\nu_plugin_core_*.exe
+          rm target\release\nu_plugin_extra_*.exe
+          cp target\release\nu_plugin_*.exe output\
+          cp README.build.txt output\README.txt
+          cp target\release\less.exe output\
+      # Note: If the version of `less.exe` needs to be changed, update this URL
+      # Similarly, if `less.exe` is checked into the repo, copy from the local path here
+      # moved this stuff down to create wix after we download less
+
+      - name: Create msi with wix
+        uses: actions-rs/cargo@v1
+        with:
+          command: wix
+          args: --no-build --nocapture --output target\wix\nushell-windows.msi
+
+      - name: Upload installer
+        uses: actions/upload-artifact@v2
+        with:
+          name: windows-installer
+          path: target\wix\nushell-windows.msi
+
+      - name: Upload zip
+        uses: actions/upload-artifact@v2
+        with:
+          name: windows-zip
+          path: output\*
+
+  release:
+    name: Publish Release
+    runs-on: ubuntu-latest
+    needs:
+      - linux
+      - macos
+      - windows
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Determine Release Info
+        id: info
+        env:
+          GITHUB_REF: ${{ github.ref }}
+        run: |
+          VERSION=${GITHUB_REF##*/}
+          MAJOR=${VERSION%%.*}
+          MINOR=${VERSION%.*}
+          MINOR=${MINOR#*.}
+          PATCH=${VERSION##*.}
+          echo "::set-output name=version::${VERSION}"
+          echo "::set-output name=linuxdir::nu_${MAJOR}_${MINOR}_${PATCH}_linux"
+          echo "::set-output name=macosdir::nu_${MAJOR}_${MINOR}_${PATCH}_macOS"
+          echo "::set-output name=windowsdir::nu_${MAJOR}_${MINOR}_${PATCH}_windows"
+          echo "::set-output name=innerdir::nushell-${VERSION}"
+
+      - name: Create Release Draft
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ steps.info.outputs.version }} Release
+          draft: true
+
+      - name: Create Linux Directory
+        run: mkdir -p ${{ steps.info.outputs.linuxdir }}/${{ steps.info.outputs.innerdir }}
+
+      - name: Download Linux Artifacts
+        uses: actions/download-artifact@v2
+        with:
+          name: linux
+          path: ${{ steps.info.outputs.linuxdir }}/${{ steps.info.outputs.innerdir }}
+
+      - name: Restore Linux File Modes
+        run: |
+          chmod 755 ${{ steps.info.outputs.linuxdir }}/${{ steps.info.outputs.innerdir }}/nu*
+          chmod 755 ${{ steps.info.outputs.linuxdir }}/${{ steps.info.outputs.innerdir }}/libssl*
+
+      - name: Create Linux tarball
+        run: tar -zcvf ${{ steps.info.outputs.linuxdir }}.tar.gz ${{ steps.info.outputs.linuxdir }}
+
+      - name: Upload Linux Artifact
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./${{ steps.info.outputs.linuxdir }}.tar.gz
+          asset_name: ${{ steps.info.outputs.linuxdir }}.tar.gz
+          asset_content_type: application/gzip
+
+      - name: Create macOS Directory
+        run: mkdir -p ${{ steps.info.outputs.macosdir }}/${{ steps.info.outputs.innerdir }}
+
+      - name: Download macOS Artifacts
+        uses: actions/download-artifact@v2
+        with:
+          name: macos
+          path: ${{ steps.info.outputs.macosdir }}/${{ steps.info.outputs.innerdir }}
+
+      - name: Restore macOS File Modes
+        run: chmod 755 ${{ steps.info.outputs.macosdir }}/${{ steps.info.outputs.innerdir }}/nu*
+
+      - name: Create macOS Archive
+        run: zip -r ${{ steps.info.outputs.macosdir }}.zip ${{ steps.info.outputs.macosdir }}
+
+      - name: Upload macOS Artifact
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./${{ steps.info.outputs.macosdir }}.zip
+          asset_name: ${{ steps.info.outputs.macosdir }}.zip
+          asset_content_type: application/zip
+
+      - name: Create Windows Directory
+        run: mkdir -p ${{ steps.info.outputs.windowsdir }}/${{ steps.info.outputs.innerdir }}
+
+      - name: Download Windows zip
+        uses: actions/download-artifact@v2
+        with:
+          name: windows-zip
+          path: ${{ steps.info.outputs.windowsdir }}/${{ steps.info.outputs.innerdir }}
+
+      - name: Show Windows Artifacts
+        run: ls -la ${{ steps.info.outputs.windowsdir }}/${{ steps.info.outputs.innerdir }}
+
+      - name: Create macOS Archive
+        run: zip -r ${{ steps.info.outputs.windowsdir }}.zip ${{ steps.info.outputs.windowsdir }}
+
+      - name: Upload Windows zip
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./${{ steps.info.outputs.windowsdir }}.zip
+          asset_name: ${{ steps.info.outputs.windowsdir }}.zip
+          asset_content_type: application/zip
+
+      - name: Download Windows installer
+        uses: actions/download-artifact@v2
+        with:
+          name: windows-installer
+          path: ./
+          
+      - name: Upload Windows installer
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./nushell-windows.msi
+          asset_name: ${{ steps.info.outputs.windowsdir }}.msi
+          asset_content_type: applictaion/x-msi

.gitignore

@@ -11,3 +11,12 @@ debian/debhelper-build-stamp
 debian/files
 debian/nu.substvars
 debian/nu/
+
+# macOS junk
+.DS_Store
+
+# JetBrains' IDE items
+.idea/*
+
+# VSCode's IDE items
+.vscode/*

.gitpod.Dockerfile

@@ -1,9 +1,18 @@
 FROM gitpod/workspace-full
 
+# Gitpod will not rebuild Nushell's dev image unless *some* change is made to this Dockerfile.
+# To force a rebuild, simply increase this counter:
+ENV TRIGGER_REBUILD 1
+
 USER gitpod
 
 RUN sudo apt-get update && \
     sudo apt-get install -y \
         libssl-dev \
         libxcb-composite0-dev \
-        pkg-config
+        pkg-config \
+        libpython3.6 \
+        rust-lldb \
+    && sudo rm -rf /var/lib/apt/lists/*
+
+ENV RUST_LLDB=/usr/bin/lldb-11

.gitpod.yml

@@ -1,23 +1,19 @@
 image:
   file: .gitpod.Dockerfile
 tasks:
-  - init: cargo install --path . --force --features=stable
+  - name: Clippy
+    init: cargo clippy --all --features=stable -- -D clippy::result_unwrap_used -D clippy::option_unwrap_used
+  - name: Testing
+    init: cargo test --all --features=stable
+  - name: Build
+    init: cargo build --features=stable
+  - name: Nu
+    init: cargo install --path . --features=stable
     command: nu
 github:
   prebuilds:
-    # enable for the master/default branch (defaults to true)
-    master: true
-    # enable for all branches in this repo (defaults to false)
     branches: true
-    # enable for pull requests coming from this repo (defaults to true)
-    pullRequests: true
-    # enable for pull requests coming from forks (defaults to false)
     pullRequestsFromForks: true
-    # add a "Review in Gitpod" button as a comment to pull requests (defaults to true)
-    addComment: true
-    # add a "Review in Gitpod" button to pull requests (defaults to false)
-    addBadge: false
-    # add a label once the prebuild is ready to pull requests (defaults to false)
     addLabel: prebuilt-in-gitpod
 vscode:
   extensions:
@@ -25,5 +21,5 @@ vscode:
     - Swellaby.vscode-rust-test-adapter@0.11.0:Xg+YeZZQiVpVUsIkH+uiiw==
     - serayuzgur.crates@0.4.7:HMkoguLcXp9M3ud7ac3eIw==
     - belfz.search-crates-io@1.2.1:kSLnyrOhXtYPjQpKnMr4eQ==
-    - vadimcn.vscode-lldb@1.4.5:lwHCNwtm0kmOBXeQUIPGMQ==
     - bungcip.better-toml@0.3.2:3QfgGxxYtGHfJKQU7H0nEw==
+    - webfreak.debug@0.24.0:1zVcRsAhewYEX3/A9xjMNw==

.theia/launch.json

@@ -0,0 +1,14 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+      {
+          "type": "gdb",
+          "request": "launch",
+          "name": "Debug Rust Code",
+          "preLaunchTask": "cargo",
+          "target": "${workspaceFolder}/target/debug/nu",
+          "cwd": "${workspaceFolder}",
+          "valuesFormatting": "parseText"
+      }
+  ]
+}

.theia/tasks.json

@@ -0,0 +1,12 @@
+{
+    "tasks": [
+        {
+            "command": "cargo",
+            "args": [
+                "build"
+            ],
+            "type": "process",
+            "label": "cargo",
+        }
+    ],
+}

CODE_OF_CONDUCT.md

@@ -55,7 +55,7 @@ a project may be further defined and clarified by project maintainers.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting the project team at wycats@gmail.com. All
+reported by contacting the project team at wycats@gmail.com via email or by reaching out to @jturner, @gedge, or @andras_io on discord. All
 complaints will be reviewed and investigated and will result in a response that
 is deemed necessary and appropriate to the circumstances. The project team is
 obligated to maintain confidentiality with regard to the reporter of an incident.
@@ -68,9 +68,9 @@ members of the project's leadership.
 ## Attribution
 
 This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+available at <https://www.contributor-covenant.org/version/1/4/code-of-conduct.html>
 
 [homepage]: https://www.contributor-covenant.org
 
 For answers to common questions about this code of conduct, see
-https://www.contributor-covenant.org/faq
+<https://www.contributor-covenant.org/faq>

CONTRIBUTING.md

@@ -0,0 +1,75 @@
+# Contributing
+
+Welcome to nushell!
+
+*Note: for a more complete guide see [The nu contributor book](https://github.com/nushell/contributor-book)*
+
+For speedy contributions open it in Gitpod, nu will be pre-installed with the latest build in a VSCode like editor all from your browser.
+
+[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/nushell/nushell)
+
+To get live support from the community see our [Discord](https://discordapp.com/invite/NtAbbGn), [Twitter](https://twitter.com/nu_shell) or file an issue or feature request here on [GitHub](https://github.com/nushell/nushell/issues/new/choose)!
+<!--WIP-->
+
+## Developing
+
+### Set up
+
+This is no different than other Rust projects.
+
+```bash
+git clone https://github.com/nushell/nushell
+cd nushell
+cargo build
+```
+
+### Useful Commands
+
+- Build and run Nushell:
+
+  ```shell
+  cargo build --release && cargo run --release
+  ```
+
+- Build and run with extra features:
+  ```shell
+  cargo build --release --features=extra && cargo run --release --features=extra
+  ```
+
+- Run Clippy on Nushell:
+
+  ```shell
+  cargo clippy --all --features=stable
+  ```
+
+- Run all tests:
+
+  ```shell
+  cargo test --all --features=stable
+  ```
+
+- Run all tests for a specific command
+
+  ```shell
+  cargo test --package nu-cli --test main -- commands::<command_name_here>
+  ```
+
+- Check to see if there are code formatting issues
+
+  ```shell
+  cargo fmt --all -- --check
+  ```
+
+- Format the code in the project
+
+  ```shell
+  cargo fmt --all
+  ```
+
+### Debugging Tips
+
+- To view verbose logs when developing, enable the `trace` log level.
+
+  ```shell
+  cargo build --release --features=extra && cargo run --release --features=extra -- --loglevel trace
+  ```

Cargo.toml

@@ -1,16 +1,16 @@
 [package]
-name = "nu"
-version = "0.11.0"
-authors = ["Yehuda Katz <wycats@gmail.com>", "Jonathan Turner <jonathan.d.turner@gmail.com>", "Andrés N. Robalino <andres@androbtech.com>"]
-description = "A shell for the GitHub era"
-license = "MIT"
-edition = "2018"
-readme = "README.md"
+authors = ["The Nu Project Contributors"]
 default-run = "nu"
-repository = "https://github.com/nushell/nushell"
-homepage = "https://www.nushell.sh"
+description = "A new type of shell"
 documentation = "https://www.nushell.sh/book/"
+edition = "2018"
 exclude = ["images"]
+homepage = "https://www.nushell.sh"
+license = "MIT"
+name = "nu"
+readme = "README.md"
+repository = "https://github.com/nushell/nushell"
+version = "0.27.1"
 
 [workspace]
 members = ["crates/*/"]
@@ -18,100 +18,141 @@ members = ["crates/*/"]
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-nu-cli = { version = "0.11.0", path = "./crates/nu-cli" }
-nu-source = { version = "0.11.0", path = "./crates/nu-source" }
-nu-plugin = { version = "0.11.0", path = "./crates/nu-plugin" }
-nu-protocol = { version = "0.11.0", path = "./crates/nu-protocol" }
-nu-errors = { version = "0.11.0", path = "./crates/nu-errors" }
-nu-parser = { version = "0.11.0", path = "./crates/nu-parser" }
-nu-value-ext = { version = "0.11.0", path = "./crates/nu-value-ext" }
-nu_plugin_average = { version = "0.11.0", path = "./crates/nu_plugin_average", optional=true }
-nu_plugin_binaryview = { version = "0.11.0", path = "./crates/nu_plugin_binaryview", optional=true }
-nu_plugin_fetch = { version = "0.11.0", path = "./crates/nu_plugin_fetch", optional=true }
-nu_plugin_inc = { version = "0.11.0", path = "./crates/nu_plugin_inc", optional=true }
-nu_plugin_match = { version = "0.11.0", path = "./crates/nu_plugin_match", optional=true }
-nu_plugin_post = { version = "0.11.0", path = "./crates/nu_plugin_post", optional=true }
-nu_plugin_ps = { version = "0.11.0", path = "./crates/nu_plugin_ps", optional=true }
-nu_plugin_str = { version = "0.11.0", path = "./crates/nu_plugin_str", optional=true }
-nu_plugin_sum = { version = "0.11.0", path = "./crates/nu_plugin_sum", optional=true }
-nu_plugin_sys = { version = "0.11.0", path = "./crates/nu_plugin_sys", optional=true }
-nu_plugin_textview = { version = "0.11.0", path = "./crates/nu_plugin_textview", optional=true }
-nu_plugin_tree = { version = "0.11.0", path = "./crates/nu_plugin_tree", optional=true }
-nu-macros = { version = "0.11.0", path = "./crates/nu-macros" }
+nu-cli = { version = "0.27.1", path = "./crates/nu-cli", default-features = false }
+nu-command = { version = "0.27.1", path = "./crates/nu-command" }
+nu-data = { version = "0.27.1", path = "./crates/nu-data" }
+nu-engine = { version = "0.27.1", path = "./crates/nu-engine" }
+nu-errors = { version = "0.27.1", path = "./crates/nu-errors" }
+nu-parser = { version = "0.27.1", path = "./crates/nu-parser" }
+nu-plugin = { version = "0.27.1", path = "./crates/nu-plugin" }
+nu-protocol = { version = "0.27.1", path = "./crates/nu-protocol" }
+nu-source = { version = "0.27.1", path = "./crates/nu-source" }
+nu-value-ext = { version = "0.27.1", path = "./crates/nu-value-ext" }
 
-crossterm = { version = "0.16.0", optional = true }
-onig_sys = { version = "=69.1.0", optional = true }
-semver = { version = "0.9.0", optional = true }
-syntect = { version = "3.2.0", optional = true }
-url = { version = "2.1.1", optional = true }
+nu_plugin_binaryview = { version = "0.27.1", path = "./crates/nu_plugin_binaryview", optional = true }
+nu_plugin_chart = { version = "0.27.1", path = "./crates/nu_plugin_chart", optional = true }
+nu_plugin_fetch = { version = "0.27.1", path = "./crates/nu_plugin_fetch", optional = true }
+nu_plugin_from_bson = { version = "0.27.1", path = "./crates/nu_plugin_from_bson", optional = true }
+nu_plugin_from_sqlite = { version = "0.27.1", path = "./crates/nu_plugin_from_sqlite", optional = true }
+nu_plugin_inc = { version = "0.27.1", path = "./crates/nu_plugin_inc", optional = true }
+nu_plugin_match = { version = "0.27.1", path = "./crates/nu_plugin_match", optional = true }
+nu_plugin_post = { version = "0.27.1", path = "./crates/nu_plugin_post", optional = true }
+nu_plugin_ps = { version = "0.27.1", path = "./crates/nu_plugin_ps", optional = true }
+nu_plugin_s3 = { version = "0.27.1", path = "./crates/nu_plugin_s3", optional = true }
+nu_plugin_selector = { version = "0.27.1", path = "./crates/nu_plugin_selector", optional = true }
+nu_plugin_start = { version = "0.27.1", path = "./crates/nu_plugin_start", optional = true }
+nu_plugin_sys = { version = "0.27.1", path = "./crates/nu_plugin_sys", optional = true }
+nu_plugin_textview = { version = "0.27.1", path = "./crates/nu_plugin_textview", optional = true }
+nu_plugin_to_bson = { version = "0.27.1", path = "./crates/nu_plugin_to_bson", optional = true }
+nu_plugin_to_sqlite = { version = "0.27.1", path = "./crates/nu_plugin_to_sqlite", optional = true }
+nu_plugin_tree = { version = "0.27.1", path = "./crates/nu_plugin_tree", optional = true }
+nu_plugin_xpath = { version = "0.27.1", path = "./crates/nu_plugin_xpath", optional = true }
 
-clap = "2.33.0"
-ctrlc = "3.1.4"
-dunce = "1.0.0"
-futures = { version = "0.3", features = ["compat", "io-compat"] }
-log = "0.4.8"
+# Required to bootstrap the main binary
+clap = "2.33.3"
+ctrlc = { version = "3.1.7", optional = true }
+futures = { version = "0.3.12", features = ["compat", "io-compat"] }
+itertools = "0.10.0"
+log = "0.4.14"
 pretty_env_logger = "0.4.0"
 
 [dev-dependencies]
-pretty_assertions = "0.6.1"
-nu-test-support = { version = "0.11.0", path = "./crates/nu-test-support" }
+nu-test-support = { version = "0.27.1", path = "./crates/nu-test-support" }
+dunce = "1.0.1"
+serial_test = "0.5.1"
+
 
 [build-dependencies]
-toml = "0.5.6"
-serde = { version = "1.0.104", features = ["derive"] }
-nu-build = { version = "0.11.0", path = "./crates/nu-build" }
 
 [features]
-# Test executables
-test-bins = []
+ctrlc-support = ["nu-cli/ctrlc", "nu-command/ctrlc"]
+directories-support = [
+    "nu-cli/directories",
+    "nu-cli/dirs",
+    "nu-command/directories",
+    "nu-command/dirs",
+    "nu-data/directories",
+    "nu-data/dirs",
+    "nu-engine/dirs",
+]
+ptree-support = ["nu-cli/ptree", "nu-command/ptree"]
+rustyline-support = ["nu-cli/rustyline-support", "nu-command/rustyline-support"]
+term-support = ["nu-cli/term", "nu-command/term"]
+uuid-support = ["nu-cli/uuid_crate", "nu-command/uuid_crate"]
+which-support = [
+    "nu-cli/ichwh",
+    "nu-cli/which",
+    "nu-command/ichwh",
+    "nu-command/which",
+]
 
-default = ["sys", "ps", "textview", "inc", "str"]
-stable = ["default", "starship-prompt", "binaryview", "match", "tree", "average", "sum", "post", "fetch", "clipboard-cli"]
+default = [
+    "nu-cli/shadow-rs",
+    "sys",
+    "ps",
+    "textview",
+    "inc",
+    "directories-support",
+    "ctrlc-support",
+    "which-support",
+    "ptree-support",
+    "term-support",
+    "uuid-support",
+    "rustyline-support",
+    "match",
+    "post",
+    "fetch",
+    "zip-support",
+]
 
-# Default
-textview = ["crossterm", "syntect", "onig_sys", "url", "nu_plugin_textview"]
-sys = ["nu_plugin_sys"]
-ps = ["nu_plugin_ps"]
-inc = ["semver", "nu_plugin_inc"]
-str = ["nu_plugin_str"]
+stable = ["default"]
+extra = [
+    "default",
+    "binaryview",
+    "tree",
+    "clipboard-cli",
+    "trash-support",
+    "start",
+    "bson",
+    "sqlite",
+    "s3",
+    "chart",
+    "xpath",
+    "selector",
+]
 
-# Stable
-average = ["nu_plugin_average"]
-binaryview = ["nu_plugin_binaryview"]
+wasi = ["inc", "match", "ptree-support", "match", "tree", "rustyline-support"]
+
+trace = ["nu-parser/trace"]
+
+# Stable (Default)
 fetch = ["nu_plugin_fetch"]
+inc = ["nu_plugin_inc"]
 match = ["nu_plugin_match"]
 post = ["nu_plugin_post"]
-sum = ["nu_plugin_sum"]
-trace = ["nu-parser/trace"]
+ps = ["nu_plugin_ps"]
+sys = ["nu_plugin_sys"]
+textview = ["nu_plugin_textview"]
+zip-support = ["nu-cli/zip", "nu-command/zip"]
+
+# Extra
+binaryview = ["nu_plugin_binaryview"]
+bson = ["nu_plugin_from_bson", "nu_plugin_to_bson"]
+chart = ["nu_plugin_chart"]
+clipboard-cli = ["nu-cli/clipboard-cli", "nu-command/clipboard-cli"]
+s3 = ["nu_plugin_s3"]
+selector = ["nu_plugin_selector"]
+sqlite = ["nu_plugin_from_sqlite", "nu_plugin_to_sqlite"]
+start = ["nu_plugin_start"]
+trash-support = ["nu-cli/trash-support", "nu-command/trash-support"]
 tree = ["nu_plugin_tree"]
+xpath = ["nu_plugin_xpath"]
 
-clipboard-cli = ["nu-cli/clipboard-cli"]
-starship-prompt = ["nu-cli/starship-prompt"]
-
-[[bin]]
-name = "fail"
-path = "crates/nu-test-support/src/bins/fail.rs"
-required-features = ["test-bins"]
-
-[[bin]]
-name = "chop"
-path = "crates/nu-test-support/src/bins/chop.rs"
-required-features = ["test-bins"]
-
-[[bin]]
-name = "cococo"
-path = "crates/nu-test-support/src/bins/cococo.rs"
-required-features = ["test-bins"]
-
-[[bin]]
-name = "nonu"
-path = "crates/nu-test-support/src/bins/nonu.rs"
-required-features = ["test-bins"]
-
-[[bin]]
-name = "iecho"
-path = "crates/nu-test-support/src/bins/iecho.rs"
-required-features = ["test-bins"]
+[profile.release]
+#strip = "symbols" #Couldn't get working +nightly
+codegen-units = 1 #Reduce parallel codegen units
+lto = true #Link Time Optimization
+opt-level = 'z' #Optimize for size
 
 # Core plugins that ship with `cargo install nu` by default
 # Currently, Cargo limits us to installing only one binary
@@ -131,52 +172,88 @@ name = "nu_plugin_core_ps"
 path = "src/plugins/nu_plugin_core_ps.rs"
 required-features = ["ps"]
 
-[[bin]]
-name = "nu_plugin_core_str"
-path = "src/plugins/nu_plugin_core_str.rs"
-required-features = ["str"]
-
 [[bin]]
 name = "nu_plugin_core_sys"
 path = "src/plugins/nu_plugin_core_sys.rs"
 required-features = ["sys"]
 
-# Stable plugins
 [[bin]]
-name = "nu_plugin_stable_average"
-path = "src/plugins/nu_plugin_stable_average.rs"
-required-features = ["average"]
-
-[[bin]]
-name = "nu_plugin_stable_fetch"
-path = "src/plugins/nu_plugin_stable_fetch.rs"
+name = "nu_plugin_core_fetch"
+path = "src/plugins/nu_plugin_core_fetch.rs"
 required-features = ["fetch"]
 
 [[bin]]
-name = "nu_plugin_stable_binaryview"
-path = "src/plugins/nu_plugin_stable_binaryview.rs"
-required-features = ["binaryview"]
-
-[[bin]]
-name = "nu_plugin_stable_match"
-path = "src/plugins/nu_plugin_stable_match.rs"
+name = "nu_plugin_core_match"
+path = "src/plugins/nu_plugin_core_match.rs"
 required-features = ["match"]
 
 [[bin]]
-name = "nu_plugin_stable_post"
-path = "src/plugins/nu_plugin_stable_post.rs"
+name = "nu_plugin_core_post"
+path = "src/plugins/nu_plugin_core_post.rs"
 required-features = ["post"]
 
-[[bin]]
-name = "nu_plugin_stable_sum"
-path = "src/plugins/nu_plugin_stable_sum.rs"
-required-features = ["sum"]
+# Extra plugins
 
 [[bin]]
-name = "nu_plugin_stable_tree"
-path = "src/plugins/nu_plugin_stable_tree.rs"
+name = "nu_plugin_extra_binaryview"
+path = "src/plugins/nu_plugin_extra_binaryview.rs"
+required-features = ["binaryview"]
+
+[[bin]]
+name = "nu_plugin_extra_tree"
+path = "src/plugins/nu_plugin_extra_tree.rs"
 required-features = ["tree"]
 
+[[bin]]
+name = "nu_plugin_extra_start"
+path = "src/plugins/nu_plugin_extra_start.rs"
+required-features = ["start"]
+
+[[bin]]
+name = "nu_plugin_extra_s3"
+path = "src/plugins/nu_plugin_extra_s3.rs"
+required-features = ["s3"]
+
+[[bin]]
+name = "nu_plugin_extra_chart_bar"
+path = "src/plugins/nu_plugin_extra_chart_bar.rs"
+required-features = ["chart"]
+
+[[bin]]
+name = "nu_plugin_extra_chart_line"
+path = "src/plugins/nu_plugin_extra_chart_line.rs"
+required-features = ["chart"]
+
+[[bin]]
+name = "nu_plugin_extra_xpath"
+path = "src/plugins/nu_plugin_extra_xpath.rs"
+required-features = ["xpath"]
+
+[[bin]]
+name = "nu_plugin_extra_selector"
+path = "src/plugins/nu_plugin_extra_selector.rs"
+required-features = ["selector"]
+
+[[bin]]
+name = "nu_plugin_extra_from_bson"
+path = "src/plugins/nu_plugin_extra_from_bson.rs"
+required-features = ["bson"]
+
+[[bin]]
+name = "nu_plugin_extra_to_bson"
+path = "src/plugins/nu_plugin_extra_to_bson.rs"
+required-features = ["bson"]
+
+[[bin]]
+name = "nu_plugin_extra_from_sqlite"
+path = "src/plugins/nu_plugin_extra_from_sqlite.rs"
+required-features = ["sqlite"]
+
+[[bin]]
+name = "nu_plugin_extra_to_sqlite"
+path = "src/plugins/nu_plugin_extra_to_sqlite.rs"
+required-features = ["sqlite"]
+
 # Main nu binary
 [[bin]]
 name = "nu"

README.build.txt

@@ -0,0 +1 @@
+Nu will look for the plugins in your PATH on startup. While nu will have some functionality without them, for full functionality you'll need to copy them into your path so they can be loaded.

README.md

@@ -1,74 +1,93 @@
+# README
+
 [![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-Ready--to--Code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/nushell/nushell)
 [![Crates.io](https://img.shields.io/crates/v/nu.svg)](https://crates.io/crates/nu)
 [![Build Status](https://dev.azure.com/nushell/nushell/_apis/build/status/nushell.nushell?branchName=master)](https://dev.azure.com/nushell/nushell/_build/latest?definitionId=2&branchName=master)
 [![Discord](https://img.shields.io/discord/601130461678272522.svg?logo=discord)](https://discord.gg/NtAbbGn)
 [![The Changelog #363](https://img.shields.io/badge/The%20Changelog-%23363-61c192.svg)](https://changelog.com/podcast/363)
+[![@nu_shell](https://img.shields.io/badge/twitter-@nu_shell-1DA1F3?style=flat-square)](https://twitter.com/nu_shell)
 
-
-# Nu Shell
+## Nushell
 
 A new type of shell.
 
-![Example of nushell](images/nushell-autocomplete.gif "Example of nushell")
+![Example of nushell](images/nushell-autocomplete5.gif "Example of nushell")
 
-# Status
+## Status
 
-This project has reached a minimum-viable product level of quality. While contributors dogfood it as their daily driver, it may be unstable for some commands. Future releases will work to fill out missing features and improve stability. Its design is also subject to change as it matures.
+This project has reached a minimum-viable product level of quality.
+While contributors dogfood it as their daily driver, it may be unstable for some commands.
+Future releases will work to fill out missing features and improve stability.
+Its design is also subject to change as it matures.
 
-Nu comes with a set of built-in commands (listed below). If a command is unknown, the command will shell-out and execute it (using cmd on Windows or bash on Linux and macOS), correctly passing through stdin, stdout, and stderr, so things like your daily git workflows and even `vim` will work just fine.
+Nu comes with a set of built-in commands (listed below).
+If a command is unknown, the command will shell-out and execute it (using cmd on Windows or bash on Linux and macOS), correctly passing through stdin, stdout, and stderr, so things like your daily git workflows and even `vim` will work just fine.
 
-# Learning more
+## Learning more
 
-There are a few good resources to learn about Nu. There is a [book](https://www.nushell.sh/book/) about Nu that is currently in progress. The book focuses on using Nu and its core concepts.
+There are a few good resources to learn about Nu.
+There is a [book](https://www.nushell.sh/book/) about Nu that is currently in progress.
+The book focuses on using Nu and its core concepts.
 
-If you're a developer who would like to contribute to Nu, we're also working on a [book for developers](https://www.nushell.sh/contributor-book/) to help you get started. There are also [good first issues](https://github.com/nushell/nushell/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22) to help you dive in.
+If you're a developer who would like to contribute to Nu, we're also working on a [book for developers](https://www.nushell.sh/contributor-book/) to help you get started.
+There are also [good first issues](https://github.com/nushell/nushell/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22) to help you dive in.
 
 We also have an active [Discord](https://discord.gg/NtAbbGn) and [Twitter](https://twitter.com/nu_shell) if you'd like to come and chat with us.
 
-You can also find more learning resources in our [documentation](https://www.nushell.sh/documentation.html) site.
+You can also find information on more specific topics in our [cookbook](https://www.nushell.sh/cookbook/).
 
 Try it in Gitpod.
 
 [![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/nushell/nushell)
 
-# Installation
+## Installation
 
-## Local
+### Local
 
-Up-to-date installation instructions can be found in the [installation chapter of the book](https://www.nushell.sh/book/en/installation.html).  **Windows users**: please note that Nu works on Windows 10 and does not currently have Windows 7/8.1 support.
+Up-to-date installation instructions can be found in the [installation chapter of the book](https://www.nushell.sh/book/installation.html). **Windows users**: please note that Nu works on Windows 10 and does not currently have Windows 7/8.1 support.
 
-To build Nu, you will need to use the **latest stable (1.39 or later)** version of the compiler.
+To build Nu, you will need to use the **latest stable (1.47 or later)** version of the compiler.
 
 Required dependencies:
 
-* pkg-config and libssl (only needed on Linux)
-  * on Debian/Ubuntu: `apt install pkg-config libssl-dev`
+-   pkg-config and libssl (only needed on Linux)
+    -   On Debian/Ubuntu: `apt install pkg-config libssl-dev`
 
 Optional dependencies:
 
-* To use Nu with all possible optional features enabled, you'll also need the following:
-  * on Linux (on Debian/Ubuntu): `apt install libxcb-composite0-dev libx11-dev`
+-   To use Nu with all possible optional features enabled, you'll also need the following:
+    -   On Linux (on Debian/Ubuntu): `apt install libxcb-composite0-dev libx11-dev`
 
 To install Nu via cargo (make sure you have installed [rustup](https://rustup.rs/) and the latest stable compiler via `rustup install stable`):
 
-```
+```bash
 cargo install nu
 ```
 
-You can also build Nu yourself with all the bells and whistles (be sure to have installed the [dependencies](https://www.nushell.sh/book/en/installation.html#dependencies) for your platform), once you have checked out this repo with git:
+You can also build Nu yourself with all the bells and whistles (be sure to have installed the [dependencies](https://www.nushell.sh/book/installation.html#dependencies) for your platform), once you have checked out this repo with git:
 
-```
-cargo build --workspace --features=stable
+```bash
+cargo build --workspace --features=extra
 ```
 
-## Docker
+### Docker
+
+#### Quickstart
+
+Want to try Nu right away? Execute the following to get started.
+
+```bash
+docker run -it quay.io/nushell/nu:latest
+```
+
+#### Guide
 
 If you want to pull a pre-built container, you can browse tags for the [nushell organization](https://quay.io/organization/nushell)
 on Quay.io. Pulling a container would come down to:
 
 ```bash
-$ docker pull quay.io/nushell/nu
-$ docker pull quay.io/nushell/nu-base
+docker pull quay.io/nushell/nu
+docker pull quay.io/nushell/nu-base
 ```
 
 Both "nu-base" and "nu" provide the nu binary, however nu-base also includes the source code at `/code`
@@ -78,171 +97,228 @@ Optionally, you can also build the containers locally using the [dockerfiles pro
 To build the base image:
 
 ```bash
-$ docker build -f docker/Dockerfile.nu-base -t nushell/nu-base .
+docker build -f docker/Dockerfile.nu-base -t nushell/nu-base .
 ```
 
 And then to build the smaller container (using a Multistage build):
 
 ```bash
-$ docker build -f docker/Dockerfile -t nushell/nu .
+docker build -f docker/Dockerfile -t nushell/nu .
 ```
 
 Either way, you can run either container as follows:
 
 ```bash
-$ docker run -it nushell/nu-base
-$ docker run -it nushell/nu
+docker run -it nushell/nu-base
+docker run -it nushell/nu
 /> exit
 ```
 
 The second container is a bit smaller if the size is important to you.
 
-## Packaging status
+### Packaging status
 
 [![Packaging status](https://repology.org/badge/vertical-allrepos/nushell.svg)](https://repology.org/project/nushell/versions)
 
-### Fedora
+#### Fedora
 
 [COPR repo](https://copr.fedorainfracloud.org/coprs/atim/nushell/): `sudo dnf copr enable atim/nushell -y && sudo dnf install nushell -y`
 
-# Philosophy
+## Philosophy
 
-Nu draws inspiration from projects like PowerShell, functional programming languages, and modern CLI tools. Rather than thinking of files and services as raw streams of text, Nu looks at each input as something with structure. For example, when you list the contents of a directory, what you get back is a table of rows, where each row represents an item in that directory. These values can be piped through a series of steps, in a series of commands called a 'pipeline'.
+Nu draws inspiration from projects like PowerShell, functional programming languages, and modern CLI tools.
+Rather than thinking of files and services as raw streams of text, Nu looks at each input as something with structure.
+For example, when you list the contents of a directory, what you get back is a table of rows, where each row represents an item in that directory.
+These values can be piped through a series of steps, in a series of commands called a 'pipeline'.
 
-## Pipelines
+### Pipelines
 
-In Unix, it's common to pipe between commands to split up a sophisticated command over multiple steps. Nu takes this a step further and builds heavily on the idea of _pipelines_. Just as the Unix philosophy, Nu allows commands to output from stdout and read from stdin. Additionally, commands can output structured data (you can think of this as a third kind of stream). Commands that work in the pipeline fit into one of three categories:
+In Unix, it's common to pipe between commands to split up a sophisticated command over multiple steps.
+Nu takes this a step further and builds heavily on the idea of _pipelines_.
+Just as the Unix philosophy, Nu allows commands to output from stdout and read from stdin.
+Additionally, commands can output structured data (you can think of this as a third kind of stream).
+Commands that work in the pipeline fit into one of three categories:
 
-* Commands that produce a stream (eg, `ls`)
-* Commands that filter a stream (eg, `where type == "Directory"`)
-* Commands that consume the output of the pipeline (eg, `autoview`)
+-   Commands that produce a stream (eg, `ls`)
+-   Commands that filter a stream (eg, `where type == "Dir"`)
+-   Commands that consume the output of the pipeline (eg, `autoview`)
 
 Commands are separated by the pipe symbol (`|`) to denote a pipeline flowing left to right.
 
-```
-/home/jonathan/Source/nushell(master)> ls | where type == "Directory" | autoview
-────┬───────────┬───────────┬──────────┬────────┬──────────────┬────────────────
- #  │ name      │ type      │ readonly │ size   │ accessed     │ modified
-────┼───────────┼───────────┼──────────┼────────┼──────────────┼────────────────
-  0 │ .azure    │ Directory │          │ 4.1 KB │ 2 months ago │ a day ago
-  1 │ target    │ Directory │          │ 4.1 KB │ 3 days ago   │ 3 days ago
-  2 │ images    │ Directory │          │ 4.1 KB │ 2 months ago │ 2 weeks ago
-  3 │ tests     │ Directory │          │ 4.1 KB │ 2 months ago │ 37 minutes ago
-  4 │ tmp       │ Directory │          │ 4.1 KB │ 2 weeks ago  │ 2 weeks ago
-  5 │ src       │ Directory │          │ 4.1 KB │ 2 months ago │ 37 minutes ago
-  6 │ assets    │ Directory │          │ 4.1 KB │ a month ago  │ a month ago
-  7 │ docs      │ Directory │          │ 4.1 KB │ 2 months ago │ 2 months ago
-────┴───────────┴───────────┴──────────┴────────┴──────────────┴────────────────
+```shell
+> ls | where type == "Dir" | autoview
+───┬────────┬──────┬───────┬──────────────
+ # │ name   │ type │ size  │ modified
+───┼────────┼──────┼───────┼──────────────
+ 0 │ assets │ Dir  │ 128 B │ 5 months ago
+ 1 │ crates │ Dir  │ 704 B │ 50 mins ago
+ 2 │ debian │ Dir  │ 352 B │ 5 months ago
+ 3 │ docker │ Dir  │ 288 B │ 3 months ago
+ 4 │ docs   │ Dir  │ 192 B │ 50 mins ago
+ 5 │ images │ Dir  │ 160 B │ 5 months ago
+ 6 │ src    │ Dir  │ 128 B │ 1 day ago
+ 7 │ target │ Dir  │ 160 B │ 5 days ago
+ 8 │ tests  │ Dir  │ 192 B │ 3 months ago
+───┴────────┴──────┴───────┴──────────────
 ```
 
-Because most of the time you'll want to see the output of a pipeline, `autoview` is assumed. We could have also written the above:
+Because most of the time you'll want to see the output of a pipeline, `autoview` is assumed.
+We could have also written the above:
 
-```
-/home/jonathan/Source/nushell(master)> ls | where type == Directory
+```shell
+> ls | where type == Dir
 ```
 
-Being able to use the same commands and compose them differently is an important philosophy in Nu. For example, we could use the built-in `ps` command as well to get a list of the running processes, using the same `where` as above.
+Being able to use the same commands and compose them differently is an important philosophy in Nu.
+For example, we could use the built-in `ps` command as well to get a list of the running processes, using the same `where` as above.
 
-```text
-/home/jonathan/Source/nushell(master)> ps | where cpu > 0
-───┬───────┬─────────────────┬──────────┬──────────
- # │ pid   │ name            │ status   │ cpu
-───┼───────┼─────────────────┼──────────┼──────────
- 0 │   992 │ chrome          │ Sleeping │ 6.988768
- 1 │  4240 │ chrome          │ Sleeping │ 5.645982
- 2 │ 13973 │ qemu-system-x86 │ Sleeping │ 4.996551
- 3 │ 15746 │ nu              │ Sleeping │ 84.59905
-───┴───────┴─────────────────┴──────────┴──────────
+```shell
+> ps | where cpu > 0
+───┬────────┬───────────────────┬──────────┬─────────┬──────────┬──────────
+ # │ pid    │ name              │ status   │ cpu     │ mem      │ virtual
+───┼────────┼───────────────────┼──────────┼─────────┼──────────┼──────────
+ 0 │    435 │ irq/142-SYNA327   │ Sleeping │  7.5699 │      0 B │      0 B
+ 1 │   1609 │ pulseaudio        │ Sleeping │  6.5605 │  10.6 MB │   2.3 GB
+ 2 │   1625 │ gnome-shell       │ Sleeping │  6.5684 │ 639.6 MB │   7.3 GB
+ 3 │   2202 │ Web Content       │ Sleeping │  6.8157 │ 320.8 MB │   3.0 GB
+ 4 │ 328788 │ nu_plugin_core_ps │ Sleeping │ 92.5750 │   5.9 MB │ 633.2 MB
+───┴────────┴───────────────────┴──────────┴─────────┴──────────┴──────────
 ```
 
-## Opening files
+### Opening files
 
-Nu can load file and URL contents as raw text or as structured data (if it recognizes the format). For example, you can load a .toml file as structured data and explore it:
+Nu can load file and URL contents as raw text or as structured data (if it recognizes the format).
+For example, you can load a .toml file as structured data and explore it:
 
-```
-/home/jonathan/Source/nushell(master)> open Cargo.toml
-──────────────────┬────────────────┬──────────────────
- bin              │ dependencies   │ dev-dependencies
-──────────────────┼────────────────┼──────────────────
- [table: 12 rows] │ [table: 1 row] │ [table: 1 row]
-──────────────────┴────────────────┴──────────────────
+```shell
+> open Cargo.toml
+────────────────────┬───────────────────────────
+ bin                │ [table 18 rows]
+ build-dependencies │ [row serde toml]
+ dependencies       │ [row 29 columns]
+ dev-dependencies   │ [row nu-test-support]
+ features           │ [row 19 columns]
+ package            │ [row 12 columns]
+ workspace          │ [row members]
+────────────────────┴───────────────────────────
 ```
 
 We can pipeline this into a command that gets the contents of one of the columns:
 
-```
-/home/jonathan/Source/nushell(master)> open Cargo.toml | get package
-─────────────────┬────────────────────────────┬─────────┬─────────┬──────┬─────────
- authors         │ description                │ edition │ license │ name │ version
-─────────────────┼────────────────────────────┼─────────┼─────────┼──────┼─────────
- [table: 3 rows] │ A shell for the GitHub era │ 2018    │ MIT     │ nu   │ 0.9.0
-─────────────────┴────────────────────────────┴─────────┴─────────┴──────┴─────────
+```shell
+> open Cargo.toml | get package
+───────────────┬────────────────────────────────────
+ authors       │ [table 1 rows]
+ default-run   │ nu
+ description   │ A new type of shell
+ documentation │ https://www.nushell.sh/book/
+ edition       │ 2018
+ exclude       │ [table 1 rows]
+ homepage      │ https://www.nushell.sh
+ license       │ MIT
+ name          │ nu
+ readme        │ README.md
+ repository    │ https://github.com/nushell/nushell
+ version       │ 0.21.0
+───────────────┴────────────────────────────────────
 ```
 
 Finally, we can use commands outside of Nu once we have the data we want:
 
-```
-/home/jonathan/Source/nushell(master)> open Cargo.toml | get package.version | echo $it
-0.9.0
+```shell
+> open Cargo.toml | get package.version
+0.21.0
 ```
 
 Here we use the variable `$it` to refer to the value being piped to the external command.
 
-## Configuration
+### Configuration
 
-Nu has early support for configuring the shell. It currently supports the following settings:
+Nu has early support for configuring the shell. You can refer to the book for a list of [all supported variables](https://www.nushell.sh/book/configuration.html).
 
-| Variable        | Type                 | Description                                                    |
-| --------------- | -------------------- | -------------------------------------------------------------- |
-| path            | table of strings     | PATH to use to find binaries                                   |
-| env             | row                  | the environment variables to pass to external commands         |
-| ctrlc_exit      | boolean              | whether or not to exit Nu after multiple ctrl-c presses        |
-| table_mode      | "light" or other     | enable lightweight or normal tables                            |
-| edit_mode       | "vi" or "emacs"      | changes line editing to "vi" or "emacs" mode                   |
-| completion_mode | "circular" or "list" | changes completion type to "circular" (default) or "list" mode |
+To set one of these variables, you can use `config set`. For example:
 
-To set one of these variables, you can use `config --set`. For example:
-
-```
-> config --set [edit_mode "vi"]
-> config --set [path $nu.path]
+```shell
+> config set edit_mode "vi"
+> config set path $nu.path
 ```
 
-## Shells
+### Shells
 
-Nu will work inside of a single directory and allow you to navigate around your filesystem by default. Nu also offers a way of adding additional working directories that you can jump between, allowing you to work in multiple directories at the same time.
+Nu will work inside of a single directory and allow you to navigate around your filesystem by default.
+Nu also offers a way of adding additional working directories that you can jump between, allowing you to work in multiple directories at the same time.
 
-To do so, use the `enter` command, which will allow you create a new "shell" and enter it at the specified path. You can toggle between this new shell and the original shell with the `p` (for previous) and `n` (for next), allowing you to navigate around a ring buffer of shells. Once you're done with a shell, you can `exit` it and remove it from the ring buffer.
+To do so, use the `enter` command, which will allow you create a new "shell" and enter it at the specified path.
+You can toggle between this new shell and the original shell with the `p` (for previous) and `n` (for next), allowing you to navigate around a ring buffer of shells.
+Once you're done with a shell, you can `exit` it and remove it from the ring buffer.
 
 Finally, to get a list of all the current shells, you can use the `shells` command.
 
-## Plugins
+### Plugins
 
-Nu supports plugins that offer additional functionality to the shell and follow the same structured data model that built-in commands use. This allows you to extend nu for your needs.
+Nu supports plugins that offer additional functionality to the shell and follow the same structured data model that built-in commands use.
+This allows you to extend nu for your needs.
 
 There are a few examples in the `plugins` directory.
 
-Plugins are binaries that are available in your path and follow a `nu_plugin_*` naming convention. These binaries interact with nu via a simple JSON-RPC protocol where the command identifies itself and passes along its configuration, which then makes it available for use. If the plugin is a filter, data streams to it one element at a time, and it can stream data back in return via stdin/stdout. If the plugin is a sink, it is given the full vector of final data and is given free reign over stdin/stdout to use as it pleases.
+Plugins are binaries that are available in your path and follow a `nu_plugin_*` naming convention.
+These binaries interact with nu via a simple JSON-RPC protocol where the command identifies itself and passes along its configuration, which then makes it available for use.
+If the plugin is a filter, data streams to it one element at a time, and it can stream data back in return via stdin/stdout.
+If the plugin is a sink, it is given the full vector of final data and is given free reign over stdin/stdout to use as it pleases.
 
-# Goals
+## Goals
 
 Nu adheres closely to a set of goals that make up its design philosophy. As features are added, they are checked against these goals.
 
-* First and foremost, Nu is cross-platform. Commands and techniques should carry between platforms and offer first-class consistent support for Windows, macOS, and Linux.
+-   First and foremost, Nu is cross-platform. Commands and techniques should carry between platforms and offer first-class consistent support for Windows, macOS, and Linux.
 
-* Nu ensures direct compatibility with existing platform-specific executables that make up people's workflows.
+-   Nu ensures direct compatibility with existing platform-specific executables that make up people's workflows.
 
-* Nu's workflow and tools should have the usability in day-to-day experience of using a shell in 2019 (and beyond).
+-   Nu's workflow and tools should have the usability in day-to-day experience of using a shell in 2019 (and beyond).
 
-* Nu views data as both structured and unstructured. It is a structured shell like PowerShell.
+-   Nu views data as both structured and unstructured. It is a structured shell like PowerShell.
 
-* Finally, Nu views data functionally. Rather than using mutation, pipelines act as a means to load, change, and save data without mutable state.
+-   Finally, Nu views data functionally. Rather than using mutation, pipelines act as a means to load, change, and save data without mutable state.
 
-# Commands
+## Commands
 
-You can find a list of Nu commands, complete with documentation, in [quick command references](https://www.nushell.sh/documentation.html#quick-command-references). 
+You can find a list of Nu commands, complete with documentation, in [quick command references](https://www.nushell.sh/book/command_reference.html).
 
-# License
+## Progress
 
-The project is made available under the MIT license. See "LICENSE" for more information.
+Nu is in heavy development, and will naturally change as it matures and people use it. The chart below isn't meant to be exhaustive, but rather helps give an idea for some of the areas of development and their relative completion:
 
+| Features      | Not started | Prototype | MVP | Preview | Mature | Notes                                                                |
+| ------------- | :---------: | :-------: | :-: | :-----: | :----: | -------------------------------------------------------------------- |
+| Aliases       |             |     X     |     |         |        | Initial implementation but lacks necessary features                  |
+| Notebook      |             |     X     |     |         |        | Initial jupyter support, but it loses state and lacks features       |
+| File ops      |             |           |  X  |         |        | cp, mv, rm, mkdir have some support, but lacking others              |
+| Environment   |             |     X     |     |         |        | Temporary environment, but no session-wide env variables             |
+| Shells        |             |     X     |     |         |        | Basic value and file shells, but no opt-in/opt-out for commands      |
+| Protocol      |             |           |  X  |         |        | Streaming protocol is serviceable                                    |
+| Plugins       |             |     X     |     |         |        | Plugins work on one row at a time, lack batching and expression eval |
+| Errors        |             |           |  X  |         |        | Error reporting works, but could use usability polish                |
+| Documentation |             |     X     |     |         |        | Book and related are barebones and lack task-based lessons           |
+| Paging        |             |     X     |     |         |        | Textview has paging, but we'd like paging for tables                 |
+| Functions     |             |     X     |     |         |        | No functions, yet, only aliases                                      |
+| Variables     |             |     X     |     |         |        | Nu doesn't yet support variables                                     |
+| Completions   |             |     X     |     |         |        | Completions are currently barebones, at best                         |
+| Type-checking |             |     X     |     |         |        | Commands check basic types, but input/output isn't checked           |
+
+## Current Roadmap
+
+We've added a `Roadmap Board` to help collaboratively capture the direction we're going for the current release as well as capture some important issues we'd like to see in Nushell. You can find the Roadmap [here](https://github.com/nushell/nushell/projects/2).
+
+## Contributing
+
+See [Contributing](CONTRIBUTING.md) for details.
+
+Thanks to all the people who already contributed!
+
+<a href="https://github.com/nushell/nushell/graphs/contributors">
+  <img src="https://contributors-img.web.app/image?repo=nushell/nushell" />
+</a>
+
+## License
+
+The project is made available under the MIT license. See the `LICENSE` file for more information.

TODO.md

@@ -1,60 +0,0 @@
-This pattern is extremely repetitive and can be abstracted:
-
-```rs
-    let args = args.evaluate_once(registry)?;
-    let tag = args.name_tag();
-    let input = args.input;
-
-    let stream = async_stream! {
-        let values: Vec<Value> = input.values.collect().await;
-
-        let mut concat_string = String::new();
-        let mut latest_tag: Option<Tag> = None;
-
-        for value in values {
-            latest_tag = Some(value_tag.clone());
-            let value_span = value.tag.span;
-
-            match &value.value {
-                UntaggedValue::Primitive(Primitive::String(s)) => {
-                    concat_string.push_str(&s);
-                    concat_string.push_str("\n");
-                }
-                _ => yield Err(ShellError::labeled_error_with_secondary(
-                    "Expected a string from pipeline",
-                    "requires string input",
-                    name_span,
-                    "value originates from here",
-                    value_span,
-                )),
-
-            }
-        }
-
-```
-
-Mandatory and Optional in parse_command
-
-trace_remaining?
-
-select_fields and select_fields take unnecessary Tag
-
-Value#value should be Value#untagged
-
-Unify dictionary building, probably around a macro
-
-sys plugin in own crate
-
-textview in own crate
-
-Combine atomic and atomic_parse in parser
-
-at_end_possible_ws needs to be comment and separator sensitive
-
-Eliminate unnecessary `nodes` parser
-
-#[derive(HasSpan)]
-
-Figure out a solution for the duplication in stuff like NumberShape vs. NumberExpressionShape
-
-use `struct Expander` from signature.rs

build.rs

@@ -1,3 +0,0 @@
-fn main() -> Result<(), Box<dyn std::error::Error>> {
-    nu_build::build()
-}

crates/nu-build/Cargo.toml

@@ -1,16 +0,0 @@
-[package]
-name = "nu-build"
-version = "0.11.0"
-authors = ["Yehuda Katz <wycats@gmail.com>", "Jonathan Turner <jonathan.d.turner@gmail.com>", "Andrés N. Robalino <andres@androbtech.com>"]
-edition = "2018"
-description = "Core build system for nushell"
-license = "MIT"
-
-[lib]
-doctest = false
-
-[dependencies]
-serde = { version = "1.0.103", features = ["derive"] }
-lazy_static = "1.4.0"
-serde_json = "1.0.44"
-toml = "0.5.5"

crates/nu-build/src/lib.rs

@@ -1,80 +0,0 @@
-use lazy_static::lazy_static;
-use serde::Deserialize;
-use std::collections::BTreeMap;
-use std::collections::HashMap;
-use std::collections::HashSet;
-use std::env;
-use std::path::{Path, PathBuf};
-use std::sync::Mutex;
-
-lazy_static! {
-    static ref WORKSPACES: Mutex<BTreeMap<String, &'static Path>> = Mutex::new(BTreeMap::new());
-}
-
-// got from https://github.com/mitsuhiko/insta/blob/b113499249584cb650150d2d01ed96ee66db6b30/src/runtime.rs#L67-L88
-
-fn get_cargo_workspace(manifest_dir: &str) -> Result<Option<&Path>, Box<dyn std::error::Error>> {
-    let mut workspaces = WORKSPACES.lock()?;
-    if let Some(rv) = workspaces.get(manifest_dir) {
-        Ok(Some(rv))
-    } else {
-        #[derive(Deserialize)]
-        struct Manifest {
-            workspace_root: String,
-        }
-        let output = std::process::Command::new(env!("CARGO"))
-            .arg("metadata")
-            .arg("--format-version=1")
-            .current_dir(manifest_dir)
-            .output()?;
-        let manifest: Manifest = serde_json::from_slice(&output.stdout)?;
-        let path = Box::leak(Box::new(PathBuf::from(manifest.workspace_root)));
-        workspaces.insert(manifest_dir.to_string(), path.as_path());
-        Ok(workspaces.get(manifest_dir).cloned())
-    }
-}
-
-#[derive(Deserialize)]
-struct Feature {
-    #[allow(unused)]
-    description: String,
-    enabled: bool,
-}
-
-pub fn build() -> Result<(), Box<dyn std::error::Error>> {
-    let input = env::var("CARGO_MANIFEST_DIR")?;
-
-    let all_on = env::var("NUSHELL_ENABLE_ALL_FLAGS").is_ok();
-    let flags: HashSet<String> = env::var("NUSHELL_ENABLE_FLAGS")
-        .map(|s| s.split(',').map(|s| s.to_string()).collect())
-        .unwrap_or_else(|_| HashSet::new());
-
-    if all_on && !flags.is_empty() {
-        println!(
-            "cargo:warning=Both NUSHELL_ENABLE_ALL_FLAGS and NUSHELL_ENABLE_FLAGS were set. You don't need both."
-        );
-    }
-
-    let workspace = match get_cargo_workspace(&input)? {
-        // If the crate is being downloaded from crates.io, it won't have a workspace root, and that's ok
-        None => return Ok(()),
-        Some(workspace) => workspace,
-    };
-
-    let path = Path::new(&workspace).join("features.toml");
-
-    // If the crate is being downloaded from crates.io, it won't have a features.toml, and that's ok
-    if !path.exists() {
-        return Ok(());
-    }
-
-    let toml: HashMap<String, Feature> = toml::from_str(&std::fs::read_to_string(path)?)?;
-
-    for (key, value) in toml.iter() {
-        if value.enabled || all_on || flags.contains(key) {
-            println!("cargo:rustc-cfg={}", key);
-        }
-    }
-
-    Ok(())
-}

crates/nu-cli/Cargo.toml

@@ -1,109 +1,135 @@
 [package]
-name = "nu-cli"
-version = "0.11.0"
-authors = ["Yehuda Katz <wycats@gmail.com>", "Jonathan Turner <jonathan.d.turner@gmail.com>", "Andrés N. Robalino <andres@androbtech.com>"]
+authors = ["The Nu Project Contributors"]
+build = "build.rs"
 description = "CLI for nushell"
 edition = "2018"
 license = "MIT"
+name = "nu-cli"
+version = "0.27.1"
 
 [lib]
 doctest = false
 
 [dependencies]
-nu-source = { version = "0.11.0", path = "../nu-source" }
-nu-plugin = { version = "0.11.0", path = "../nu-plugin" }
-nu-protocol = { version = "0.11.0", path = "../nu-protocol" }
-nu-errors = { version = "0.11.0", path = "../nu-errors" }
-nu-parser = { version = "0.11.0", path = "../nu-parser" }
-nu-value-ext = { version = "0.11.0", path = "../nu-value-ext" }
-nu-macros = { version = "0.11.0", path = "../nu-macros" }
-nu-test-support = { version = "0.11.0", path = "../nu-test-support" }
+nu-command = { version = "0.27.1", path = "../nu-command" }
+nu-data = { version = "0.27.1", path = "../nu-data" }
+nu-engine = { version = "0.27.1", path = "../nu-engine" }
+nu-errors = { version = "0.27.1", path = "../nu-errors" }
+nu-json = { version = "0.27.1", path = "../nu-json" }
+nu-parser = { version = "0.27.1", path = "../nu-parser" }
+nu-plugin = { version = "0.27.1", path = "../nu-plugin" }
+nu-protocol = { version = "0.27.1", path = "../nu-protocol" }
+nu-source = { version = "0.27.1", path = "../nu-source" }
+nu-stream = { version = "0.27.1", path = "../nu-stream" }
+nu-table = { version = "0.27.1", path = "../nu-table" }
+nu-test-support = { version = "0.27.1", path = "../nu-test-support" }
+nu-value-ext = { version = "0.27.1", path = "../nu-value-ext" }
 
+Inflector = "0.11"
 ansi_term = "0.12.1"
-app_dirs = "1.2.1"
-async-stream = "0.2"
-base64 = "0.11"
-bigdecimal = { version = "0.1.0", features = ["serde"] }
-bson = { version = "0.14.0", features = ["decimal128"] }
-byte-unit = "3.0.3"
-bytes = "0.5.4"
-calamine = "0.16"
-cfg-if = "0.1"
-chrono = { version = "0.4.11", features = ["serde"] }
-clap = "2.33.0"
-csv = "1.1"
-ctrlc = "3.1.4"
+arboard = { version = "1.1.0", optional = true }
+async-recursion = "0.3.2"
+async-trait = "0.1.42"
+base64 = "0.13.0"
+bigdecimal = { version = "0.2.0", features = ["serde"] }
+byte-unit = "4.0.9"
+bytes = "1.0.1"
+calamine = "0.17.0"
+chrono = { version = "0.4.19", features = ["serde"] }
+chrono-tz = "0.5.3"
+clap = "2.33.3"
+codespan-reporting = "0.11.0"
+csv = "1.1.5"
+ctrlc = { version = "3.1.7", optional = true }
 derive-new = "0.5.8"
-dirs = "2.0.2"
-dunce = "1.0.0"
-filesize = "0.1.0"
-futures = { version = "0.3", features = ["compat", "io-compat"] }
-futures-util = "0.3.4"
-futures_codec = "0.4"
-getset = "0.1.0"
-git2 = { version = "0.11.0", default_features = false }
+directories-next = { version = "2.0.0", optional = true }
+dirs-next = { version = "2.0.0", optional = true }
+dtparse = "1.2.0"
+dunce = "1.0.1"
+eml-parser = "0.1.0"
+encoding_rs = "0.8.28"
+filesize = "0.2.0"
+fs_extra = "1.2.0"
+futures = { version = "0.3.12", features = ["compat", "io-compat"] }
+futures-util = "0.3.12"
+futures_codec = "0.4.1"
+getset = "0.1.1"
 glob = "0.3.0"
-hex = "0.4"
-ichwh = "0.3"
-indexmap = { version = "1.3.2", features = ["serde-1"] }
-itertools = "0.9.0"
-language-reporting = "0.4.0"
-log = "0.4.8"
-meval = "0.2"
-natural = "0.5.0"
-nom = "5.0.1"
-nom-tracable = "0.4.1"
-nom_locate = "1.0.0"
-num-bigint = { version = "0.2.6", features = ["serde"] }
-num-traits = "0.2.11"
-parking_lot = "0.10.0"
-pin-utils = "0.1.0-alpha.4"
-pretty-hex = "0.1.1"
-pretty_env_logger = "0.4.0"
-prettytable-rs = "0.8.0"
-ptree = {version = "0.2" }
+htmlescape = "0.3.1"
+ical = "0.7.0"
+ichwh = { version = "0.3.4", optional = true }
+indexmap = { version = "1.6.1", features = ["serde-1"] }
+itertools = "0.10.0"
+lazy_static = "1.*"
+log = "0.4.14"
+meval = "0.2.0"
+num-bigint = { version = "0.3.1", features = ["serde"] }
+num-format = { version = "0.4.0", features = ["with-num-bigint"] }
+num-traits = "0.2.14"
+parking_lot = "0.11.1"
+pin-utils = "0.1.0"
+pretty-hex = "0.2.1"
+ptree = { version = "0.3.1", optional = true }
 query_interface = "0.3.5"
-rand = "0.7"
-regex = "1"
-roxmltree = "0.9.1"
-rustyline = "6.0.0"
-serde = { version = "1.0.104", features = ["derive"] }
-serde-hjson = "0.9.1"
-serde_bytes = "0.11.3"
+quick-xml = "0.21.0"
+rand = "0.8.3"
+rayon = "1.5.0"
+regex = "1.4.3"
+roxmltree = "0.14.0"
+rust-embed = "5.9.0"
+rustyline = { version = "6.3.0", optional = true }
+serde = { version = "1.0.123", features = ["derive"] }
+serde_bytes = "0.11.5"
 serde_ini = "0.2.0"
-serde_json = "1.0.48"
-serde_urlencoded = "0.6.1"
-serde_yaml = "0.8"
-shellexpand = "2.0.0"
+serde_json = "1.0.61"
+serde_urlencoded = "0.7.0"
+serde_yaml = "0.8.16"
+sha2 = "0.9.3"
+shellexpand = "2.1.0"
 strip-ansi-escapes = "0.1.0"
-tempfile = "3.1.0"
-term = "0.5.2"
-termcolor = "1.1.0"
-textwrap = {version = "0.11.0", features = ["term_size"]}
-toml = "0.5.6"
-trash = "1.0.0"
-typetag = "0.1.4"
-umask = "0.1"
-unicode-xid = "0.2.0"
-which = "3.1.1"
-
-clipboard = { version = "0.5", optional = true }
-starship = { version = "0.37.0", optional = true }
+sxd-document = "0.3.2"
+sxd-xpath = "0.4.2"
+tempfile = "3.2.0"
+term = { version = "0.7.0", optional = true }
+term_size = "0.3.2"
+termcolor = "1.1.2"
+titlecase = "1.1.0"
+toml = "0.5.8"
+trash = { version = "1.3.0", optional = true }
+unicode-segmentation = "1.7.1"
+url = "2.1.1"
+uuid_crate = { package = "uuid", version = "0.8.2", features = ["v4"], optional = true }
+which = { version = "4.0.2", optional = true }
+zip = { version = "0.5.9", optional = true }
+shadow-rs = { version = "0.5", default-features = false, optional = true }
 
 [target.'cfg(unix)'.dependencies]
-users = "0.9"
+umask = "1.0.0"
+users = "0.11.0"
+
+# TODO this will be possible with new dependency resolver
+#   (currently on nightly behind -Zfeatures=itarget):
+#   https://github.com/rust-lang/cargo/issues/7914
+#[target.'cfg(not(windows))'.dependencies]
+#num-format = {version = "0.4", features = ["with-system-locale"]}
 
 [dependencies.rusqlite]
-version = "0.21.0"
 features = ["bundled", "blob"]
-
-[dev-dependencies]
-pretty_assertions = "0.6.1"
+optional = true
+version = "0.24.2"
 
 [build-dependencies]
-nu-build = { version = "0.11.0", path = "../nu-build" }
+shadow-rs = "0.5"
+
+[dev-dependencies]
+quickcheck = "1.0.3"
+quickcheck_macros = "1.0.0"
 
 [features]
+default = ["shadow-rs"]
+clipboard-cli = ["arboard"]
+rustyline-support = ["rustyline", "nu-engine/rustyline-support"]
 stable = []
-starship-prompt = ["starship"]
-clipboard-cli = ["clipboard"]
+trash-support = ["trash"]
+dirs = ["dirs-next"]
+directories = ["directories-next"]

crates/nu-cli/build.rs

@@ -0,0 +1,3 @@
+fn main() -> shadow_rs::SdResult<()> {
+    shadow_rs::new()
+}

crates/nu-cli/src/commands.rs

@@ -1,208 +0,0 @@
-#[macro_use]
-pub(crate) mod macros;
-
-mod from_delimited_data;
-mod to_delimited_data;
-
-pub(crate) mod append;
-pub(crate) mod args;
-pub(crate) mod autoview;
-pub(crate) mod calc;
-pub(crate) mod cd;
-pub(crate) mod classified;
-pub(crate) mod clip;
-pub(crate) mod command;
-pub(crate) mod compact;
-pub(crate) mod config;
-pub(crate) mod count;
-pub(crate) mod cp;
-pub(crate) mod date;
-pub(crate) mod debug;
-pub(crate) mod default;
-pub(crate) mod du;
-pub(crate) mod echo;
-pub(crate) mod edit;
-pub(crate) mod enter;
-#[allow(unused)]
-pub(crate) mod evaluate_by;
-pub(crate) mod exit;
-pub(crate) mod first;
-pub(crate) mod format;
-pub(crate) mod from_bson;
-pub(crate) mod from_csv;
-pub(crate) mod from_ini;
-pub(crate) mod from_json;
-pub(crate) mod from_ods;
-pub(crate) mod from_sqlite;
-pub(crate) mod from_ssv;
-pub(crate) mod from_toml;
-pub(crate) mod from_tsv;
-pub(crate) mod from_url;
-pub(crate) mod from_xlsx;
-pub(crate) mod from_xml;
-pub(crate) mod from_yaml;
-pub(crate) mod get;
-pub(crate) mod group_by;
-pub(crate) mod help;
-pub(crate) mod histogram;
-pub(crate) mod history;
-pub(crate) mod insert;
-pub(crate) mod last;
-pub(crate) mod lines;
-pub(crate) mod ls;
-#[allow(unused)]
-pub(crate) mod map_max_by;
-pub(crate) mod mkdir;
-pub(crate) mod mv;
-pub(crate) mod next;
-pub(crate) mod nth;
-pub(crate) mod open;
-pub(crate) mod parse;
-pub(crate) mod pick;
-pub(crate) mod pivot;
-pub(crate) mod plugin;
-pub(crate) mod prepend;
-pub(crate) mod prev;
-pub(crate) mod pwd;
-pub(crate) mod range;
-#[allow(unused)]
-pub(crate) mod reduce_by;
-pub(crate) mod reject;
-pub(crate) mod rename;
-pub(crate) mod reverse;
-pub(crate) mod rm;
-pub(crate) mod save;
-pub(crate) mod shells;
-pub(crate) mod shuffle;
-pub(crate) mod size;
-pub(crate) mod skip;
-pub(crate) mod skip_while;
-pub(crate) mod sort_by;
-pub(crate) mod split_by;
-pub(crate) mod split_column;
-pub(crate) mod split_row;
-#[allow(unused)]
-pub(crate) mod t_sort_by;
-pub(crate) mod table;
-pub(crate) mod tags;
-pub(crate) mod to_bson;
-pub(crate) mod to_csv;
-pub(crate) mod to_json;
-pub(crate) mod to_sqlite;
-pub(crate) mod to_toml;
-pub(crate) mod to_tsv;
-pub(crate) mod to_url;
-pub(crate) mod to_yaml;
-pub(crate) mod trim;
-pub(crate) mod uniq;
-pub(crate) mod version;
-pub(crate) mod what;
-pub(crate) mod where_;
-pub(crate) mod which_;
-pub(crate) mod wrap;
-
-pub(crate) use autoview::Autoview;
-pub(crate) use cd::Cd;
-pub(crate) use command::{
-    per_item_command, whole_stream_command, Command, PerItemCommand, UnevaluatedCallInfo,
-    WholeStreamCommand,
-};
-
-pub(crate) use append::Append;
-pub(crate) use calc::Calc;
-pub(crate) use compact::Compact;
-pub(crate) use config::Config;
-pub(crate) use count::Count;
-pub(crate) use cp::Cpy;
-pub(crate) use date::Date;
-pub(crate) use debug::Debug;
-pub(crate) use default::Default;
-pub(crate) use du::Du;
-pub(crate) use echo::Echo;
-pub(crate) use edit::Edit;
-pub(crate) mod kill;
-pub(crate) use kill::Kill;
-pub(crate) mod clear;
-pub(crate) use clear::Clear;
-pub(crate) mod touch;
-pub(crate) use enter::Enter;
-#[allow(unused_imports)]
-pub(crate) use evaluate_by::EvaluateBy;
-pub(crate) use exit::Exit;
-pub(crate) use first::First;
-pub(crate) use format::Format;
-pub(crate) use from_bson::FromBSON;
-pub(crate) use from_csv::FromCSV;
-pub(crate) use from_ini::FromINI;
-pub(crate) use from_json::FromJSON;
-pub(crate) use from_ods::FromODS;
-pub(crate) use from_sqlite::FromDB;
-pub(crate) use from_sqlite::FromSQLite;
-pub(crate) use from_ssv::FromSSV;
-pub(crate) use from_toml::FromTOML;
-pub(crate) use from_tsv::FromTSV;
-pub(crate) use from_url::FromURL;
-pub(crate) use from_xlsx::FromXLSX;
-pub(crate) use from_xml::FromXML;
-pub(crate) use from_yaml::FromYAML;
-pub(crate) use from_yaml::FromYML;
-pub(crate) use get::Get;
-pub(crate) use group_by::GroupBy;
-pub(crate) use help::Help;
-pub(crate) use histogram::Histogram;
-pub(crate) use history::History;
-pub(crate) use insert::Insert;
-pub(crate) use last::Last;
-pub(crate) use lines::Lines;
-pub(crate) use ls::Ls;
-#[allow(unused_imports)]
-pub(crate) use map_max_by::MapMaxBy;
-pub(crate) use mkdir::Mkdir;
-pub(crate) use mv::Move;
-pub(crate) use next::Next;
-pub(crate) use nth::Nth;
-pub(crate) use open::Open;
-pub(crate) use parse::Parse;
-pub(crate) use pick::Pick;
-pub(crate) use pivot::Pivot;
-pub(crate) use prepend::Prepend;
-pub(crate) use prev::Previous;
-pub(crate) use pwd::Pwd;
-pub(crate) use range::Range;
-#[allow(unused_imports)]
-pub(crate) use reduce_by::ReduceBy;
-pub(crate) use reject::Reject;
-pub(crate) use rename::Rename;
-pub(crate) use reverse::Reverse;
-pub(crate) use rm::Remove;
-pub(crate) use save::Save;
-pub(crate) use shells::Shells;
-pub(crate) use shuffle::Shuffle;
-pub(crate) use size::Size;
-pub(crate) use skip::Skip;
-pub(crate) use skip_while::SkipWhile;
-pub(crate) use sort_by::SortBy;
-pub(crate) use split_by::SplitBy;
-pub(crate) use split_column::SplitColumn;
-pub(crate) use split_row::SplitRow;
-#[allow(unused_imports)]
-pub(crate) use t_sort_by::TSortBy;
-pub(crate) use table::Table;
-pub(crate) use tags::Tags;
-pub(crate) use to_bson::ToBSON;
-pub(crate) use to_csv::ToCSV;
-pub(crate) use to_json::ToJSON;
-pub(crate) use to_sqlite::ToDB;
-pub(crate) use to_sqlite::ToSQLite;
-pub(crate) use to_toml::ToTOML;
-pub(crate) use to_tsv::ToTSV;
-pub(crate) use to_url::ToURL;
-pub(crate) use to_yaml::ToYAML;
-pub(crate) use touch::Touch;
-pub(crate) use trim::Trim;
-pub(crate) use uniq::Uniq;
-pub(crate) use version::Version;
-pub(crate) use what::What;
-pub(crate) use where_::Where;
-pub(crate) use which_::Which;
-pub(crate) use wrap::Wrap;

crates/nu-cli/src/commands/append.rs

@@ -1,49 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Signature, SyntaxShape, Value};
-
-#[derive(Deserialize)]
-struct AppendArgs {
-    row: Value,
-}
-
-pub struct Append;
-
-impl WholeStreamCommand for Append {
-    fn name(&self) -> &str {
-        "append"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("append").required(
-            "row value",
-            SyntaxShape::Any,
-            "the value of the row to append to the table",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Append the given row to the table"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, append)?.run()
-    }
-}
-
-fn append(
-    AppendArgs { row }: AppendArgs,
-    RunnableContext { input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let mut after: VecDeque<Value> = VecDeque::new();
-    after.push_back(row);
-    let after = futures::stream::iter(after);
-
-    Ok(OutputStream::from_input(input.values.chain(after)))
-}

crates/nu-cli/src/commands/autoview.rs

@@ -1,226 +0,0 @@
-use crate::commands::UnevaluatedCallInfo;
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_parser::{hir, hir::Expression, hir::Literal, hir::SpannedExpression};
-use nu_protocol::{Primitive, ReturnSuccess, Signature, UntaggedValue, Value};
-use std::sync::atomic::AtomicBool;
-use std::sync::atomic::Ordering;
-
-pub struct Autoview;
-
-impl WholeStreamCommand for Autoview {
-    fn name(&self) -> &str {
-        "autoview"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("autoview")
-    }
-
-    fn usage(&self) -> &str {
-        "View the contents of the pipeline as a table or list."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        autoview(RunnableContext {
-            input: args.input,
-            commands: registry.clone(),
-            shell_manager: args.shell_manager,
-            host: args.host,
-            source: args.call_info.source,
-            ctrl_c: args.ctrl_c,
-            name: args.call_info.name_tag,
-        })
-    }
-}
-
-pub struct RunnableContextWithoutInput {
-    pub shell_manager: ShellManager,
-    pub host: Arc<parking_lot::Mutex<Box<dyn Host>>>,
-    pub source: Text,
-    pub ctrl_c: Arc<AtomicBool>,
-    pub commands: CommandRegistry,
-    pub name: Tag,
-}
-
-impl RunnableContextWithoutInput {
-    pub fn convert(context: RunnableContext) -> (InputStream, RunnableContextWithoutInput) {
-        let new_context = RunnableContextWithoutInput {
-            shell_manager: context.shell_manager,
-            host: context.host,
-            source: context.source,
-            ctrl_c: context.ctrl_c,
-            commands: context.commands,
-            name: context.name,
-        };
-        (context.input, new_context)
-    }
-}
-
-pub fn autoview(context: RunnableContext) -> Result<OutputStream, ShellError> {
-    let binary = context.get_command("binaryview");
-    let text = context.get_command("textview");
-    let table = context.get_command("table");
-
-    Ok(OutputStream::new(async_stream! {
-        let (mut input_stream, context) = RunnableContextWithoutInput::convert(context);
-
-        match input_stream.next().await {
-            Some(x) => {
-                match input_stream.next().await {
-                    Some(y) => {
-                        let ctrl_c = context.ctrl_c.clone();
-                        let stream = async_stream! {
-                            yield Ok(x);
-                            yield Ok(y);
-
-                            loop {
-                                match input_stream.next().await {
-                                    Some(z) => {
-                                        if ctrl_c.load(Ordering::SeqCst) {
-                                            break;
-                                        }
-                                        yield Ok(z);
-                                    }
-                                    _ => break,
-                                }
-                            }
-                        };
-                        let stream = stream.to_input_stream();
-
-                        if let Some(table) = table {
-                            let command_args = create_default_command_args(&context).with_input(stream);
-                            let result = table.run(command_args, &context.commands);
-                            result.collect::<Vec<_>>().await;
-                        }
-                    }
-                    _ => {
-                        match x {
-                            Value {
-                                value: UntaggedValue::Primitive(Primitive::String(ref s)),
-                                tag: Tag { anchor, span },
-                            } if anchor.is_some() => {
-                                if let Some(text) = text {
-                                    let mut stream = VecDeque::new();
-                                    stream.push_back(UntaggedValue::string(s).into_value(Tag { anchor, span }));
-                                    let command_args = create_default_command_args(&context).with_input(stream);
-                                    let result = text.run(command_args, &context.commands);
-                                    result.collect::<Vec<_>>().await;
-                                } else {
-                                    out!("{}", s);
-                                }
-                            }
-                            Value {
-                                value: UntaggedValue::Primitive(Primitive::String(s)),
-                                ..
-                            } => {
-                                out!("{}", s);
-                            }
-                            Value {
-                                value: UntaggedValue::Primitive(Primitive::Line(ref s)),
-                                tag: Tag { anchor, span },
-                            } if anchor.is_some() => {
-                                if let Some(text) = text {
-                                    let mut stream = VecDeque::new();
-                                    stream.push_back(UntaggedValue::string(s).into_value(Tag { anchor, span }));
-                                    let command_args = create_default_command_args(&context).with_input(stream);
-                                    let result = text.run(command_args, &context.commands);
-                                    result.collect::<Vec<_>>().await;
-                                } else {
-                                    out!("{}\n", s);
-                                }
-                            }
-                            Value {
-                                value: UntaggedValue::Primitive(Primitive::Line(s)),
-                                ..
-                            } => {
-                                out!("{}\n", s);
-                            }
-                            Value {
-                                value: UntaggedValue::Primitive(Primitive::Path(s)),
-                                ..
-                            } => {
-                                out!("{}", s.display());
-                            }
-                            Value {
-                                value: UntaggedValue::Primitive(Primitive::Int(n)),
-                                ..
-                            } => {
-                                out!("{}", n);
-                            }
-                            Value {
-                                value: UntaggedValue::Primitive(Primitive::Decimal(n)),
-                                ..
-                            } => {
-                                out!("{}", n);
-                            }
-
-                            Value { value: UntaggedValue::Primitive(Primitive::Binary(ref b)), .. } => {
-                                if let Some(binary) = binary {
-                                    let mut stream = VecDeque::new();
-                                    stream.push_back(x);
-                                    let command_args = create_default_command_args(&context).with_input(stream);
-                                    let result = binary.run(command_args, &context.commands);
-                                    result.collect::<Vec<_>>().await;
-                                } else {
-                                    use pretty_hex::*;
-                                    out!("{:?}", b.hex_dump());
-                                }
-                            }
-
-                            Value { value: UntaggedValue::Error(e), .. } => {
-                                yield Err(e);
-                            }
-                            Value { value: ref item, .. } => {
-                                if let Some(table) = table {
-                                    let mut stream = VecDeque::new();
-                                    stream.push_back(x);
-                                    let command_args = create_default_command_args(&context).with_input(stream);
-                                    let result = table.run(command_args, &context.commands);
-                                    result.collect::<Vec<_>>().await;
-                                } else {
-                                    out!("{:?}", item);
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-            _ => {
-                //out!("<no results>");
-            }
-        }
-
-        // Needed for async_stream to type check
-        if false {
-            yield ReturnSuccess::value(UntaggedValue::nothing().into_untagged_value());
-        }
-    }))
-}
-
-fn create_default_command_args(context: &RunnableContextWithoutInput) -> RawCommandArgs {
-    let span = context.name.span;
-    RawCommandArgs {
-        host: context.host.clone(),
-        ctrl_c: context.ctrl_c.clone(),
-        shell_manager: context.shell_manager.clone(),
-        call_info: UnevaluatedCallInfo {
-            args: hir::Call {
-                head: Box::new(SpannedExpression::new(
-                    Expression::Literal(Literal::String(span)),
-                    span,
-                )),
-                positional: None,
-                named: None,
-                span,
-            },
-            source: context.source.clone(),
-            name_tag: context.name.clone(),
-        },
-    }
-}

crates/nu-cli/src/commands/calc.rs

@@ -1,63 +0,0 @@
-use crate::commands::PerItemCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, Primitive, ReturnSuccess, UntaggedValue, Value};
-
-pub struct Calc;
-
-impl PerItemCommand for Calc {
-    fn name(&self) -> &str {
-        "calc"
-    }
-
-    fn usage(&self) -> &str {
-        "Parse a math expression into a number"
-    }
-
-    fn run(
-        &self,
-        _call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        calc(input, raw_args)
-    }
-}
-
-fn calc(input: Value, args: &RawCommandArgs) -> Result<OutputStream, ShellError> {
-    let name_span = &args.call_info.name_tag.span;
-
-    let output = if let Ok(string) = input.as_string() {
-        match parse(&string, &input.tag) {
-            Ok(value) => ReturnSuccess::value(value),
-            Err(err) => Err(ShellError::labeled_error(
-                "Calculation error",
-                err,
-                &input.tag.span,
-            )),
-        }
-    } else {
-        Err(ShellError::labeled_error(
-            "Expected a string from pipeline",
-            "requires string input",
-            name_span,
-        ))
-    };
-
-    Ok(vec![output].into())
-}
-
-pub fn parse(math_expression: &str, tag: impl Into<Tag>) -> Result<Value, String> {
-    use std::f64;
-    let num = meval::eval_str(math_expression);
-    match num {
-        Ok(num) => {
-            if num == f64::INFINITY || num == f64::NEG_INFINITY {
-                return Err(String::from("cannot represent result"));
-            }
-            Ok(UntaggedValue::from(Primitive::from(num)).into_value(tag))
-        }
-        Err(error) => Err(error.to_string()),
-    }
-}

crates/nu-cli/src/commands/cd.rs

@@ -1,45 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_macros::signature;
-use nu_protocol::{Signature, SyntaxShape};
-
-pub struct Cd;
-
-impl WholeStreamCommand for Cd {
-    fn name(&self) -> &str {
-        "cd"
-    }
-
-    fn signature(&self) -> Signature {
-        signature! {
-            def cd {
-                "the directory to change to"
-                directory(optional Path) - "the directory to change to"
-            }
-        }
-        // Signature::build("cd").optional(
-        //     "directory",
-        //     SyntaxShape::Path,
-        //     "the directory to change to",
-        // )
-    }
-
-    fn usage(&self) -> &str {
-        "Change to a new path."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        cd(args, registry)
-    }
-}
-
-fn cd(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let shell_manager = args.shell_manager.clone();
-    let args = args.evaluate_once(registry)?;
-    shell_manager.cd(args)
-}

crates/nu-cli/src/commands/classified/external.rs

@@ -1,851 +0,0 @@
-use crate::futures::ThreadedReceiver;
-use crate::prelude::*;
-use bytes::{BufMut, Bytes, BytesMut};
-use futures::executor::block_on_stream;
-use futures::stream::StreamExt;
-use futures_codec::FramedRead;
-use log::trace;
-use nu_errors::ShellError;
-use nu_parser::commands::classified::external::ExternalArg;
-use nu_parser::ExternalCommand;
-use nu_protocol::{ColumnPath, Primitive, ShellTypeName, UntaggedValue, Value};
-use nu_source::{Tag, Tagged};
-use nu_value_ext::as_column_path;
-use std::io::Write;
-use std::ops::Deref;
-use std::process::{Command, Stdio};
-use std::sync::mpsc;
-
-pub enum StringOrBinary {
-    String(String),
-    Binary(Vec<u8>),
-}
-pub struct MaybeTextCodec;
-
-impl futures_codec::Encoder for MaybeTextCodec {
-    type Item = StringOrBinary;
-    type Error = std::io::Error;
-
-    fn encode(&mut self, item: Self::Item, dst: &mut BytesMut) -> Result<(), Self::Error> {
-        match item {
-            StringOrBinary::String(s) => {
-                dst.reserve(s.len());
-                dst.put(s.as_bytes());
-                Ok(())
-            }
-            StringOrBinary::Binary(b) => {
-                dst.reserve(b.len());
-                dst.put(Bytes::from(b));
-                Ok(())
-            }
-        }
-    }
-}
-
-impl futures_codec::Decoder for MaybeTextCodec {
-    type Item = StringOrBinary;
-    type Error = std::io::Error;
-
-    fn decode(&mut self, src: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
-        let v: Vec<u8> = src.to_vec();
-        match String::from_utf8(v) {
-            Ok(s) => {
-                src.clear();
-                if s.is_empty() {
-                    Ok(None)
-                } else {
-                    Ok(Some(StringOrBinary::String(s)))
-                }
-            }
-            Err(err) => {
-                // Note: the longest UTF-8 character per Unicode spec is currently 6 bytes. If we fail somewhere earlier than the last 6 bytes,
-                // we know that we're failing to understand the string encoding and not just seeing a partial character. When this happens, let's
-                // fall back to assuming it's a binary buffer.
-                if src.is_empty() {
-                    Ok(None)
-                } else if src.len() > 6 && (src.len() - err.utf8_error().valid_up_to() > 6) {
-                    // Fall back to assuming binary
-                    let buf = src.to_vec();
-                    src.clear();
-                    Ok(Some(StringOrBinary::Binary(buf)))
-                } else {
-                    // Looks like a utf-8 string, so let's assume that
-                    let buf = src.split_to(err.utf8_error().valid_up_to() + 1);
-                    String::from_utf8(buf.to_vec())
-                        .map(|x| Some(StringOrBinary::String(x)))
-                        .map_err(|e| std::io::Error::new(std::io::ErrorKind::InvalidData, e))
-                }
-            }
-        }
-    }
-}
-
-pub fn nu_value_to_string(command: &ExternalCommand, from: &Value) -> Result<String, ShellError> {
-    match &from.value {
-        UntaggedValue::Primitive(Primitive::Int(i)) => Ok(i.to_string()),
-        UntaggedValue::Primitive(Primitive::String(s))
-        | UntaggedValue::Primitive(Primitive::Line(s)) => Ok(s.clone()),
-        UntaggedValue::Primitive(Primitive::Path(p)) => Ok(p.to_string_lossy().to_string()),
-        unsupported => Err(ShellError::labeled_error(
-            format!("needs string data (given: {})", unsupported.type_name()),
-            "expected a string",
-            &command.name_tag,
-        )),
-    }
-}
-
-pub(crate) fn run_external_command(
-    command: ExternalCommand,
-    context: &mut Context,
-    input: Option<InputStream>,
-    is_last: bool,
-) -> Result<Option<InputStream>, ShellError> {
-    trace!(target: "nu::run::external", "-> {}", command.name);
-
-    if !did_find_command(&command.name) {
-        return Err(ShellError::labeled_error(
-            "Command not found",
-            "command not found",
-            &command.name_tag,
-        ));
-    }
-
-    if command.has_it_argument() || command.has_nu_argument() {
-        run_with_iterator_arg(command, context, input, is_last)
-    } else {
-        run_with_stdin(command, context, input, is_last)
-    }
-}
-
-fn prepare_column_path_for_fetching_it_variable(
-    argument: &ExternalArg,
-) -> Result<Tagged<ColumnPath>, ShellError> {
-    // We have "$it.[contents of interest]"
-    // and start slicing from "$it.[member+]"
-    //                             ^ here.
-    let key = nu_source::Text::from(argument.deref()).slice(4..argument.len());
-
-    to_column_path(&key, &argument.tag)
-}
-
-fn prepare_column_path_for_fetching_nu_variable(
-    argument: &ExternalArg,
-) -> Result<Tagged<ColumnPath>, ShellError> {
-    // We have "$nu.[contents of interest]"
-    // and start slicing from "$nu.[member+]"
-    //                             ^ here.
-    let key = nu_source::Text::from(argument.deref()).slice(4..argument.len());
-
-    to_column_path(&key, &argument.tag)
-}
-
-fn to_column_path(
-    path_members: &str,
-    tag: impl Into<Tag>,
-) -> Result<Tagged<ColumnPath>, ShellError> {
-    let tag = tag.into();
-
-    as_column_path(
-        &UntaggedValue::Table(
-            path_members
-                .split('.')
-                .map(|x| {
-                    let member = match x.parse::<u64>() {
-                        Ok(v) => UntaggedValue::int(v),
-                        Err(_) => UntaggedValue::string(x),
-                    };
-
-                    member.into_value(&tag)
-                })
-                .collect(),
-        )
-        .into_value(&tag),
-    )
-}
-
-fn run_with_iterator_arg(
-    command: ExternalCommand,
-    context: &mut Context,
-    input: Option<InputStream>,
-    is_last: bool,
-) -> Result<Option<InputStream>, ShellError> {
-    let path = context.shell_manager.path();
-
-    let mut inputs: InputStream = if let Some(input) = input {
-        trace_stream!(target: "nu::trace_stream::external::it", "input" = input)
-    } else {
-        InputStream::empty()
-    };
-
-    let stream = async_stream! {
-        while let Some(value) = inputs.next().await {
-            let name = command.name.clone();
-            let name_tag = command.name_tag.clone();
-            let home_dir = dirs::home_dir();
-            let path = &path;
-            let args = command.args.clone();
-
-            let it_replacement = {
-                if command.has_it_argument() {
-                    let empty_arg = ExternalArg {
-                        arg: "".to_string(),
-                        tag: name_tag.clone()
-                    };
-
-                    let key = args.iter()
-                        .find(|arg| arg.looks_like_it())
-                        .unwrap_or_else(|| &empty_arg);
-
-                    if args.iter().all(|arg| !arg.is_it()) {
-                        let key = match prepare_column_path_for_fetching_it_variable(&key) {
-                            Ok(keypath) => keypath,
-                            Err(reason) => {
-                                yield Ok(Value {
-                                    value: UntaggedValue::Error(reason),
-                                    tag: name_tag
-                                });
-                                return;
-                            }
-                        };
-
-                        match crate::commands::get::get_column_path(&key, &value) {
-                            Ok(field) => {
-                                match nu_value_to_string(&command, &field) {
-                                    Ok(val) => Some(val),
-                                    Err(reason) => {
-                                        yield Ok(Value {
-                                            value: UntaggedValue::Error(reason),
-                                            tag: name_tag
-                                        });
-                                        return;
-                                    },
-                                }
-                            },
-                            Err(reason) => {
-                                yield Ok(Value {
-                                    value: UntaggedValue::Error(reason),
-                                    tag: name_tag
-                                });
-                                return;
-                            }
-                        }
-                    } else {
-                        match nu_value_to_string(&command, &value) {
-                            Ok(val) => Some(val),
-                            Err(reason) => {
-                                yield Ok(Value {
-                                    value: UntaggedValue::Error(reason),
-                                    tag: name_tag
-                                });
-                                return;
-                            },
-                        }
-                    }
-                } else {
-                    None
-                }
-            };
-
-            let nu_replacement = {
-                if command.has_nu_argument() {
-                    let empty_arg = ExternalArg {
-                        arg: "".to_string(),
-                        tag: name_tag.clone()
-                    };
-
-                    let key = args.iter()
-                        .find(|arg| arg.looks_like_nu())
-                        .unwrap_or_else(|| &empty_arg);
-
-                    let nu_var = match crate::evaluate::variables::nu(&name_tag) {
-                        Ok(variables) => variables,
-                        Err(reason) => {
-                            yield Ok(Value {
-                                value: UntaggedValue::Error(reason),
-                                tag: name_tag
-                            });
-                            return;
-                        }
-                    };
-
-                    if args.iter().all(|arg| !arg.is_nu()) {
-                        let key = match prepare_column_path_for_fetching_nu_variable(&key) {
-                            Ok(keypath) => keypath,
-                            Err(reason) => {
-                                yield Ok(Value {
-                                    value: UntaggedValue::Error(reason),
-                                    tag: name_tag
-                                });
-                                return;
-                            }
-                        };
-
-                        match crate::commands::get::get_column_path(&key, &nu_var) {
-                            Ok(field) => {
-                                match nu_value_to_string(&command, &field) {
-                                    Ok(val) => Some(val),
-                                    Err(reason) => {
-                                        yield Ok(Value {
-                                            value: UntaggedValue::Error(reason),
-                                            tag: name_tag
-                                        });
-                                        return;
-                                    },
-                                }
-                            },
-                            Err(reason) => {
-                                yield Ok(Value {
-                                    value: UntaggedValue::Error(reason),
-                                    tag: name_tag
-                                });
-                                return;
-                            }
-                        }
-                    } else {
-                        match nu_value_to_string(&command, &nu_var) {
-                            Ok(val) => Some(val),
-                            Err(reason) => {
-                                yield Ok(Value {
-                                    value: UntaggedValue::Error(reason),
-                                    tag: name_tag
-                                });
-                                return;
-                            },
-                        }
-                    }
-                } else {
-                    None
-                }
-            };
-
-            let process_args = args.iter().filter_map(|arg| {
-                if arg.chars().all(|c| c.is_whitespace()) {
-                    None
-                } else {
-                    let arg = if arg.looks_like_it() {
-                        if let Some(mut value) = it_replacement.to_owned() {
-                            let mut value = expand_tilde(&value, || home_dir.as_ref()).as_ref().to_string();
-                            #[cfg(not(windows))]
-                            {
-                                value = {
-                                    if argument_contains_whitespace(&value) && !argument_is_quoted(&value) {
-                                        add_quotes(&value)
-                                    } else {
-                                        value
-                                    }
-                                };
-                            }
-                            Some(value)
-                        } else {
-                            None
-                        }
-                    } else if arg.looks_like_nu() {
-                        if let Some(mut value) = nu_replacement.to_owned() {
-                            #[cfg(not(windows))]
-                            {
-                                value = {
-                                    if argument_contains_whitespace(&value) && !argument_is_quoted(&value) {
-                                        add_quotes(&value)
-                                    } else {
-                                        value
-                                    }
-                                };
-                            }
-                            Some(value)
-                        } else {
-                            None
-                        }
-                    } else {
-                        Some(arg.to_string())
-                    };
-
-                    arg
-                }
-            }).collect::<Vec<String>>();
-
-            match spawn(&command, &path, &process_args[..], None, is_last) {
-                Ok(res) => {
-                    if let Some(mut res) = res {
-                        while let Some(item) = res.next().await {
-                            yield Ok(item)
-                        }
-                    }
-                }
-                Err(reason) => {
-                    yield Ok(Value {
-                        value: UntaggedValue::Error(reason),
-                        tag: name_tag
-                    });
-                    return;
-                }
-            }
-        }
-    };
-
-    Ok(Some(stream.to_input_stream()))
-}
-
-fn run_with_stdin(
-    command: ExternalCommand,
-    context: &mut Context,
-    input: Option<InputStream>,
-    is_last: bool,
-) -> Result<Option<InputStream>, ShellError> {
-    let path = context.shell_manager.path();
-
-    let input = input
-        .map(|input| trace_stream!(target: "nu::trace_stream::external::stdin", "input" = input));
-
-    let process_args = command
-        .args
-        .iter()
-        .map(|arg| {
-            let arg = expand_tilde(arg.deref(), dirs::home_dir);
-
-            #[cfg(not(windows))]
-            {
-                if argument_contains_whitespace(&arg) && argument_is_quoted(&arg) {
-                    if let Some(unquoted) = remove_quotes(&arg) {
-                        format!(r#""{}""#, unquoted)
-                    } else {
-                        arg.as_ref().to_string()
-                    }
-                } else {
-                    arg.as_ref().to_string()
-                }
-            }
-            #[cfg(windows)]
-            {
-                if let Some(unquoted) = remove_quotes(&arg) {
-                    unquoted.to_string()
-                } else {
-                    arg.as_ref().to_string()
-                }
-            }
-        })
-        .collect::<Vec<String>>();
-
-    spawn(&command, &path, &process_args[..], input, is_last)
-}
-
-fn spawn(
-    command: &ExternalCommand,
-    path: &str,
-    args: &[String],
-    input: Option<InputStream>,
-    is_last: bool,
-) -> Result<Option<InputStream>, ShellError> {
-    let command = command.clone();
-
-    let mut process = {
-        #[cfg(windows)]
-        {
-            let mut process = Command::new("cmd");
-            process.arg("/c");
-            process.arg(&command.name);
-            for arg in args {
-                process.arg(&arg);
-            }
-            process
-        }
-
-        #[cfg(not(windows))]
-        {
-            let cmd_with_args = vec![command.name.clone(), args.join(" ")].join(" ");
-            let mut process = Command::new("sh");
-            process.arg("-c").arg(cmd_with_args);
-            process
-        }
-    };
-
-    process.current_dir(path);
-    trace!(target: "nu::run::external", "cwd = {:?}", &path);
-
-    // We want stdout regardless of what
-    // we are doing ($it case or pipe stdin)
-    if !is_last {
-        process.stdout(Stdio::piped());
-        trace!(target: "nu::run::external", "set up stdout pipe");
-    }
-
-    // open since we have some contents for stdin
-    if input.is_some() {
-        process.stdin(Stdio::piped());
-        trace!(target: "nu::run::external", "set up stdin pipe");
-    }
-
-    trace!(target: "nu::run::external", "built command {:?}", process);
-
-    // TODO Switch to async_std::process once it's stabilized
-    if let Ok(mut child) = process.spawn() {
-        let (tx, rx) = mpsc::sync_channel(0);
-
-        let mut stdin = child.stdin.take();
-
-        let stdin_write_tx = tx.clone();
-        let stdout_read_tx = tx;
-        let stdin_name_tag = command.name_tag.clone();
-        let stdout_name_tag = command.name_tag;
-
-        std::thread::spawn(move || {
-            if let Some(input) = input {
-                let mut stdin_write = stdin
-                    .take()
-                    .expect("Internal error: could not get stdin pipe for external command");
-
-                for value in block_on_stream(input) {
-                    match &value.value {
-                        UntaggedValue::Primitive(Primitive::Nothing) => continue,
-                        UntaggedValue::Primitive(Primitive::String(s))
-                        | UntaggedValue::Primitive(Primitive::Line(s)) => {
-                            if let Err(e) = stdin_write.write(s.as_bytes()) {
-                                let message = format!("Unable to write to stdin (error = {})", e);
-
-                                let _ = stdin_write_tx.send(Ok(Value {
-                                    value: UntaggedValue::Error(ShellError::labeled_error(
-                                        message,
-                                        "application may have closed before completing pipeline",
-                                        &stdin_name_tag,
-                                    )),
-                                    tag: stdin_name_tag,
-                                }));
-                                return Err(());
-                            }
-                        }
-                        UntaggedValue::Primitive(Primitive::Binary(b)) => {
-                            if let Err(e) = stdin_write.write(b) {
-                                let message = format!("Unable to write to stdin (error = {})", e);
-
-                                let _ = stdin_write_tx.send(Ok(Value {
-                                    value: UntaggedValue::Error(ShellError::labeled_error(
-                                        message,
-                                        "application may have closed before completing pipeline",
-                                        &stdin_name_tag,
-                                    )),
-                                    tag: stdin_name_tag,
-                                }));
-                                return Err(());
-                            }
-                        }
-                        unsupported => {
-                            let _ = stdin_write_tx.send(Ok(Value {
-                                value: UntaggedValue::Error(ShellError::labeled_error(
-                                    format!(
-                                        "Received unexpected type from pipeline ({})",
-                                        unsupported.type_name()
-                                    ),
-                                    "expected a string",
-                                    stdin_name_tag.clone(),
-                                )),
-                                tag: stdin_name_tag,
-                            }));
-                            return Err(());
-                        }
-                    };
-                }
-            }
-
-            Ok(())
-        });
-
-        std::thread::spawn(move || {
-            if !is_last {
-                let stdout = if let Some(stdout) = child.stdout.take() {
-                    stdout
-                } else {
-                    let _ = stdout_read_tx.send(Ok(Value {
-                        value: UntaggedValue::Error(ShellError::labeled_error(
-                            "Can't redirect the stdout for external command",
-                            "can't redirect stdout",
-                            &stdout_name_tag,
-                        )),
-                        tag: stdout_name_tag,
-                    }));
-                    return Err(());
-                };
-
-                let file = futures::io::AllowStdIo::new(stdout);
-                let stream = FramedRead::new(file, MaybeTextCodec);
-
-                for line in block_on_stream(stream) {
-                    match line {
-                        Ok(line) => match line {
-                            StringOrBinary::String(s) => {
-                                let result = stdout_read_tx.send(Ok(Value {
-                                    value: UntaggedValue::Primitive(Primitive::String(s.clone())),
-                                    tag: stdout_name_tag.clone(),
-                                }));
-
-                                if result.is_err() {
-                                    break;
-                                }
-                            }
-                            StringOrBinary::Binary(b) => {
-                                let result = stdout_read_tx.send(Ok(Value {
-                                    value: UntaggedValue::Primitive(Primitive::Binary(
-                                        b.into_iter().collect(),
-                                    )),
-                                    tag: stdout_name_tag.clone(),
-                                }));
-
-                                if result.is_err() {
-                                    break;
-                                }
-                            }
-                        },
-                        Err(_) => {
-                            let _ = stdout_read_tx.send(Ok(Value {
-                                value: UntaggedValue::Error(ShellError::labeled_error(
-                                    "Unable to read from stdout.",
-                                    "unable to read from stdout",
-                                    &stdout_name_tag,
-                                )),
-                                tag: stdout_name_tag.clone(),
-                            }));
-                            break;
-                        }
-                    }
-                }
-            }
-
-            // We can give an error when we see a non-zero exit code, but this is different
-            // than what other shells will do.
-            if child.wait().is_err() {
-                let cfg = crate::data::config::config(Tag::unknown());
-                if let Ok(cfg) = cfg {
-                    if cfg.contains_key("nonzero_exit_errors") {
-                        let _ = stdout_read_tx.send(Ok(Value {
-                            value: UntaggedValue::Error(ShellError::labeled_error(
-                                "External command failed",
-                                "command failed",
-                                &stdout_name_tag,
-                            )),
-                            tag: stdout_name_tag,
-                        }));
-                    }
-                }
-            }
-
-            Ok(())
-        });
-
-        let stream = ThreadedReceiver::new(rx);
-        Ok(Some(stream.to_input_stream()))
-    } else {
-        Err(ShellError::labeled_error(
-            "Command not found",
-            "command not found",
-            &command.name_tag,
-        ))
-    }
-}
-
-fn did_find_command(name: &str) -> bool {
-    #[cfg(not(windows))]
-    {
-        which::which(name).is_ok()
-    }
-
-    #[cfg(windows)]
-    {
-        if which::which(name).is_ok() {
-            true
-        } else {
-            let cmd_builtins = [
-                "call", "cls", "color", "date", "dir", "echo", "find", "hostname", "pause",
-                "start", "time", "title", "ver", "copy", "mkdir", "rename", "rd", "rmdir", "type",
-            ];
-
-            cmd_builtins.contains(&name)
-        }
-    }
-}
-
-fn expand_tilde<SI: ?Sized, P, HD>(input: &SI, home_dir: HD) -> std::borrow::Cow<str>
-where
-    SI: AsRef<str>,
-    P: AsRef<std::path::Path>,
-    HD: FnOnce() -> Option<P>,
-{
-    shellexpand::tilde_with_context(input, home_dir)
-}
-
-#[allow(unused)]
-pub fn argument_contains_whitespace(argument: &str) -> bool {
-    argument.chars().any(|c| c.is_whitespace())
-}
-
-fn argument_is_quoted(argument: &str) -> bool {
-    if argument.len() < 2 {
-        return false;
-    }
-
-    (argument.starts_with('"') && argument.ends_with('"'))
-        || (argument.starts_with('\'') && argument.ends_with('\''))
-}
-
-#[allow(unused)]
-fn add_quotes(argument: &str) -> String {
-    format!("\"{}\"", argument)
-}
-
-fn remove_quotes(argument: &str) -> Option<&str> {
-    if !argument_is_quoted(argument) {
-        return None;
-    }
-
-    let size = argument.len();
-
-    Some(&argument[1..size - 1])
-}
-
-#[allow(unused)]
-fn shell_os_paths() -> Vec<std::path::PathBuf> {
-    let mut original_paths = vec![];
-
-    if let Some(paths) = std::env::var_os("PATH") {
-        original_paths = std::env::split_paths(&paths).collect::<Vec<_>>();
-    }
-
-    original_paths
-}
-
-#[cfg(test)]
-mod tests {
-    use super::{
-        add_quotes, argument_contains_whitespace, argument_is_quoted, expand_tilde, remove_quotes,
-        run_external_command, Context,
-    };
-    use futures::executor::block_on;
-    use nu_errors::ShellError;
-    use nu_test_support::commands::ExternalBuilder;
-
-    // async fn read(mut stream: OutputStream) -> Option<Value> {
-    //     match stream.try_next().await {
-    //         Ok(val) => {
-    //             if let Some(val) = val {
-    //                 val.raw_value()
-    //             } else {
-    //                 None
-    //             }
-    //         }
-    //         Err(_) => None,
-    //     }
-    // }
-
-    async fn non_existent_run() -> Result<(), ShellError> {
-        let cmd = ExternalBuilder::for_name("i_dont_exist.exe").build();
-
-        let mut ctx = Context::basic().expect("There was a problem creating a basic context.");
-
-        assert!(run_external_command(cmd, &mut ctx, None, false).is_err());
-
-        Ok(())
-    }
-
-    // async fn failure_run() -> Result<(), ShellError> {
-    //     let cmd = ExternalBuilder::for_name("fail").build();
-
-    //     let mut ctx = Context::basic().expect("There was a problem creating a basic context.");
-    //     let stream = run_external_command(cmd, &mut ctx, None, false)
-    //         .await?
-    //         .expect("There was a problem running the external command.");
-
-    //     match read(stream.into()).await {
-    //         Some(Value {
-    //             value: UntaggedValue::Error(_),
-    //             ..
-    //         }) => {}
-    //         None | _ => panic!("Command didn't fail."),
-    //     }
-
-    //     Ok(())
-    // }
-
-    // #[test]
-    // fn identifies_command_failed() -> Result<(), ShellError> {
-    //     block_on(failure_run())
-    // }
-
-    #[test]
-    fn identifies_command_not_found() -> Result<(), ShellError> {
-        block_on(non_existent_run())
-    }
-
-    #[test]
-    fn checks_contains_whitespace_from_argument_to_be_passed_in() {
-        assert_eq!(argument_contains_whitespace("andrés"), false);
-        assert_eq!(argument_contains_whitespace("and rés"), true);
-        assert_eq!(argument_contains_whitespace(r#"and\ rés"#), true);
-    }
-
-    #[test]
-    fn checks_quotes_from_argument_to_be_passed_in() {
-        assert_eq!(argument_is_quoted(""), false);
-
-        assert_eq!(argument_is_quoted("'"), false);
-        assert_eq!(argument_is_quoted("'a"), false);
-        assert_eq!(argument_is_quoted("a"), false);
-        assert_eq!(argument_is_quoted("a'"), false);
-        assert_eq!(argument_is_quoted("''"), true);
-
-        assert_eq!(argument_is_quoted(r#"""#), false);
-        assert_eq!(argument_is_quoted(r#""a"#), false);
-        assert_eq!(argument_is_quoted(r#"a"#), false);
-        assert_eq!(argument_is_quoted(r#"a""#), false);
-        assert_eq!(argument_is_quoted(r#""""#), true);
-
-        assert_eq!(argument_is_quoted("'andrés"), false);
-        assert_eq!(argument_is_quoted("andrés'"), false);
-        assert_eq!(argument_is_quoted(r#""andrés"#), false);
-        assert_eq!(argument_is_quoted(r#"andrés""#), false);
-        assert_eq!(argument_is_quoted("'andrés'"), true);
-        assert_eq!(argument_is_quoted(r#""andrés""#), true);
-    }
-
-    #[test]
-    fn adds_quotes_to_argument_to_be_passed_in() {
-        assert_eq!(add_quotes("andrés"), "\"andrés\"");
-        //assert_eq!(add_quotes("\"andrés\""), "\"andrés\"");
-    }
-
-    #[test]
-    fn strips_quotes_from_argument_to_be_passed_in() {
-        assert_eq!(remove_quotes(""), None);
-
-        assert_eq!(remove_quotes("'"), None);
-        assert_eq!(remove_quotes("'a"), None);
-        assert_eq!(remove_quotes("a"), None);
-        assert_eq!(remove_quotes("a'"), None);
-        assert_eq!(remove_quotes("''"), Some(""));
-
-        assert_eq!(remove_quotes(r#"""#), None);
-        assert_eq!(remove_quotes(r#""a"#), None);
-        assert_eq!(remove_quotes(r#"a"#), None);
-        assert_eq!(remove_quotes(r#"a""#), None);
-        assert_eq!(remove_quotes(r#""""#), Some(""));
-
-        assert_eq!(remove_quotes("'andrés"), None);
-        assert_eq!(remove_quotes("andrés'"), None);
-        assert_eq!(remove_quotes(r#""andrés"#), None);
-        assert_eq!(remove_quotes(r#"andrés""#), None);
-        assert_eq!(remove_quotes("'andrés'"), Some("andrés"));
-        assert_eq!(remove_quotes(r#""andrés""#), Some("andrés"));
-    }
-
-    #[test]
-    fn expands_tilde_if_starts_with_tilde_character() {
-        assert_eq!(
-            expand_tilde("~", || Some(std::path::Path::new("the_path_to_nu_light"))),
-            "the_path_to_nu_light"
-        );
-    }
-
-    #[test]
-    fn does_not_expand_tilde_if_tilde_is_not_first_character() {
-        assert_eq!(
-            expand_tilde("1~1", || Some(std::path::Path::new("the_path_to_nu_light"))),
-            "1~1"
-        );
-    }
-}

crates/nu-cli/src/commands/classified/internal.rs

@@ -1,179 +0,0 @@
-use crate::commands::UnevaluatedCallInfo;
-use crate::prelude::*;
-use log::{log_enabled, trace};
-use nu_errors::ShellError;
-use nu_parser::InternalCommand;
-use nu_protocol::{CommandAction, Primitive, ReturnSuccess, UntaggedValue, Value};
-
-pub(crate) fn run_internal_command(
-    command: InternalCommand,
-    context: &mut Context,
-    input: Option<InputStream>,
-    source: Text,
-) -> Result<Option<InputStream>, ShellError> {
-    if log_enabled!(log::Level::Trace) {
-        trace!(target: "nu::run::internal", "->");
-        trace!(target: "nu::run::internal", "{}", command.name);
-        trace!(target: "nu::run::internal", "{}", command.args.debug(&source));
-    }
-
-    let objects: InputStream = if let Some(input) = input {
-        trace_stream!(target: "nu::trace_stream::internal", "input" = input)
-    } else {
-        InputStream::empty()
-    };
-
-    let internal_command = context.expect_command(&command.name);
-
-    let result = {
-        context.run_command(
-            internal_command?,
-            command.name_tag.clone(),
-            command.args.clone(),
-            &source,
-            objects,
-        )
-    };
-
-    let result = trace_out_stream!(target: "nu::trace_stream::internal", "output" = result);
-    let mut result = result.values;
-    let mut context = context.clone();
-
-    let stream = async_stream! {
-        let mut soft_errs: Vec<ShellError> = vec![];
-        let mut yielded = false;
-
-        while let Some(item) = result.next().await {
-            match item {
-                Ok(ReturnSuccess::Action(action)) => match action {
-                    CommandAction::ChangePath(path) => {
-                        context.shell_manager.set_path(path);
-                    }
-                    CommandAction::Exit => std::process::exit(0), // TODO: save history.txt
-                    CommandAction::Error(err) => {
-                        context.error(err);
-                        break;
-                    }
-                    CommandAction::AutoConvert(tagged_contents, extension) => {
-                        let contents_tag = tagged_contents.tag.clone();
-                        let command_name = format!("from-{}", extension);
-                        let command = command.clone();
-                        if let Some(converter) = context.registry.get_command(&command_name) {
-                            let new_args = RawCommandArgs {
-                                host: context.host.clone(),
-                                ctrl_c: context.ctrl_c.clone(),
-                                shell_manager: context.shell_manager.clone(),
-                                call_info: UnevaluatedCallInfo {
-                                    args: nu_parser::hir::Call {
-                                        head: command.args.head,
-                                        positional: None,
-                                        named: None,
-                                        span: Span::unknown()
-                                    },
-                                    source: source.clone(),
-                                    name_tag: command.name_tag,
-                                }
-                            };
-                            let mut result = converter.run(new_args.with_input(vec![tagged_contents]), &context.registry);
-                            let result_vec: Vec<Result<ReturnSuccess, ShellError>> = result.drain_vec().await;
-                            for res in result_vec {
-                                match res {
-                                    Ok(ReturnSuccess::Value(Value { value: UntaggedValue::Table(list), ..})) => {
-                                        for l in list {
-                                            yield Ok(l);
-                                        }
-                                    }
-                                    Ok(ReturnSuccess::Value(Value { value, .. })) => {
-                                        yield Ok(value.into_value(contents_tag.clone()));
-                                    }
-                                    Err(e) => yield Err(e),
-                                    _ => {}
-                                }
-                            }
-                        } else {
-                            yield Ok(tagged_contents)
-                        }
-                    }
-                    CommandAction::EnterHelpShell(value) => {
-                        match value {
-                            Value {
-                                value: UntaggedValue::Primitive(Primitive::String(cmd)),
-                                tag,
-                            } => {
-                                context.shell_manager.insert_at_current(Box::new(
-                                    HelpShell::for_command(
-                                        UntaggedValue::string(cmd).into_value(tag),
-                                        &context.registry(),
-                                    )?,
-                                ));
-                            }
-                            _ => {
-                                context.shell_manager.insert_at_current(Box::new(
-                                    HelpShell::index(&context.registry())?,
-                                ));
-                            }
-                        }
-                    }
-                    CommandAction::EnterValueShell(value) => {
-                        context
-                            .shell_manager
-                            .insert_at_current(Box::new(ValueShell::new(value)));
-                    }
-                    CommandAction::EnterShell(location) => {
-                        context.shell_manager.insert_at_current(Box::new(
-                            FilesystemShell::with_location(location, context.registry().clone()),
-                        ));
-                    }
-                    CommandAction::PreviousShell => {
-                        context.shell_manager.prev();
-                    }
-                    CommandAction::NextShell => {
-                        context.shell_manager.next();
-                    }
-                    CommandAction::LeaveShell => {
-                        context.shell_manager.remove_at_current();
-                        if context.shell_manager.is_empty() {
-                            std::process::exit(0); // TODO: save history.txt
-                        }
-                    }
-                },
-
-                Ok(ReturnSuccess::Value(Value {
-                    value: UntaggedValue::Error(err),
-                    ..
-                })) => {
-                    context.error(err);
-                    break;
-                }
-
-                Ok(ReturnSuccess::Value(v)) => {
-                    yielded = true;
-                    yield Ok(v);
-                }
-
-                Ok(ReturnSuccess::DebugValue(v)) => {
-                    yielded = true;
-
-                    let doc = PrettyDebug::pretty_doc(&v);
-                    let mut buffer = termcolor::Buffer::ansi();
-
-                    let _ = doc.render_raw(
-                        context.with_host(|host| host.width() - 5),
-                        &mut nu_source::TermColored::new(&mut buffer),
-                    );
-
-                    let value = String::from_utf8_lossy(buffer.as_slice());
-
-                    yield Ok(UntaggedValue::string(value).into_untagged_value())
-                }
-
-                Err(err) => {
-                    context.error(err);
-                    break;
-                }
-            }
-        }
-    };
-
-    Ok(Some(stream.to_input_stream()))
-}

crates/nu-cli/src/commands/classified/pipeline.rs

@@ -1,50 +0,0 @@
-use crate::commands::classified::external::run_external_command;
-use crate::commands::classified::internal::run_internal_command;
-use crate::context::Context;
-use crate::stream::InputStream;
-use nu_errors::ShellError;
-use nu_parser::{ClassifiedCommand, ClassifiedPipeline};
-use nu_source::Text;
-
-pub(crate) async fn run_pipeline(
-    pipeline: ClassifiedPipeline,
-    ctx: &mut Context,
-    mut input: Option<InputStream>,
-    line: &str,
-) -> Result<Option<InputStream>, ShellError> {
-    let mut iter = pipeline.commands.list.into_iter().peekable();
-
-    loop {
-        let item: Option<ClassifiedCommand> = iter.next();
-        let next: Option<&ClassifiedCommand> = iter.peek();
-
-        input = match (item, next) {
-            (Some(ClassifiedCommand::Dynamic(_)), _) | (_, Some(ClassifiedCommand::Dynamic(_))) => {
-                return Err(ShellError::unimplemented("Dynamic commands"))
-            }
-
-            (Some(ClassifiedCommand::Expr(_)), _) | (_, Some(ClassifiedCommand::Expr(_))) => {
-                return Err(ShellError::unimplemented("Expression-only commands"))
-            }
-
-            (Some(ClassifiedCommand::Error(err)), _) => return Err(err.into()),
-            (_, Some(ClassifiedCommand::Error(err))) => return Err(err.clone().into()),
-
-            (Some(ClassifiedCommand::Internal(left)), _) => {
-                run_internal_command(left, ctx, input, Text::from(line))?
-            }
-
-            (Some(ClassifiedCommand::External(left)), None) => {
-                run_external_command(left, ctx, input, true)?
-            }
-
-            (Some(ClassifiedCommand::External(left)), _) => {
-                run_external_command(left, ctx, input, false)?
-            }
-
-            (None, _) => break,
-        };
-    }
-
-    Ok(input)
-}

crates/nu-cli/src/commands/clear.rs

@@ -1,40 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::Signature;
-use std::process::Command;
-
-pub struct Clear;
-
-impl WholeStreamCommand for Clear {
-    fn name(&self) -> &str {
-        "clear"
-    }
-    fn signature(&self) -> Signature {
-        Signature::build("clear")
-    }
-    fn usage(&self) -> &str {
-        "clears the terminal"
-    }
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        clear(args, registry)
-    }
-}
-fn clear(_args: CommandArgs, _registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    if cfg!(windows) {
-        Command::new("cmd")
-            .args(&["/C", "cls"])
-            .status()
-            .expect("failed to execute process");
-    } else if cfg!(unix) {
-        Command::new("/bin/sh")
-            .args(&["-c", "clear"])
-            .status()
-            .expect("failed to execute process");
-    }
-    Ok(OutputStream::empty())
-}

crates/nu-cli/src/commands/clip.rs

@@ -1,106 +0,0 @@
-#[cfg(feature = "clipboard")]
-pub mod clipboard {
-    use crate::commands::WholeStreamCommand;
-    use crate::context::CommandRegistry;
-    use crate::prelude::*;
-    use futures::stream::StreamExt;
-    use nu_errors::ShellError;
-    use nu_protocol::{ReturnValue, Signature, Value};
-
-    use clipboard::{ClipboardContext, ClipboardProvider};
-
-    pub struct Clip;
-
-    #[derive(Deserialize)]
-    pub struct ClipArgs {}
-
-    impl WholeStreamCommand for Clip {
-        fn name(&self) -> &str {
-            "clip"
-        }
-
-        fn signature(&self) -> Signature {
-            Signature::build("clip")
-        }
-
-        fn usage(&self) -> &str {
-            "Copy the contents of the pipeline to the copy/paste buffer"
-        }
-
-        fn run(
-            &self,
-            args: CommandArgs,
-            registry: &CommandRegistry,
-        ) -> Result<OutputStream, ShellError> {
-            args.process(registry, clip)?.run()
-        }
-    }
-
-    pub fn clip(
-        ClipArgs {}: ClipArgs,
-        RunnableContext { input, name, .. }: RunnableContext,
-    ) -> Result<OutputStream, ShellError> {
-        let stream = async_stream! {
-            let values: Vec<Value> = input.values.collect().await;
-
-            let mut clip_stream = inner_clip(values, name).await;
-            while let Some(value) = clip_stream.next().await {
-                yield value;
-            }
-        };
-
-        let stream: BoxStream<'static, ReturnValue> = stream.boxed();
-
-        Ok(OutputStream::from(stream))
-    }
-
-    async fn inner_clip(input: Vec<Value>, name: Tag) -> OutputStream {
-        if let Ok(clip_context) = ClipboardProvider::new() {
-            let mut clip_context: ClipboardContext = clip_context;
-            let mut new_copy_data = String::new();
-
-            if !input.is_empty() {
-                let mut first = true;
-                for i in input.iter() {
-                    if !first {
-                        new_copy_data.push_str("\n");
-                    } else {
-                        first = false;
-                    }
-
-                    let string: String = match i.as_string() {
-                        Ok(string) => string.to_string(),
-                        Err(_) => {
-                            return OutputStream::one(Err(ShellError::labeled_error(
-                                "Given non-string data",
-                                "expected strings from pipeline",
-                                name,
-                            )))
-                        }
-                    };
-
-                    new_copy_data.push_str(&string);
-                }
-            }
-
-            match clip_context.set_contents(new_copy_data) {
-                Ok(_) => {}
-                Err(_) => {
-                    return OutputStream::one(Err(ShellError::labeled_error(
-                        "Could not set contents of clipboard",
-                        "could not set contents of clipboard",
-                        name,
-                    )));
-                }
-            }
-
-            OutputStream::empty()
-        } else {
-            OutputStream::one(Err(ShellError::labeled_error(
-                "Could not open clipboard",
-                "could not open clipboard",
-                name,
-            )))
-        }
-    }
-}

crates/nu-cli/src/commands/command.rs

@@ -1,612 +0,0 @@
-use crate::commands::help::get_help;
-use crate::context::CommandRegistry;
-use crate::deserializer::ConfigDeserializer;
-use crate::evaluate::evaluate_args::evaluate_args;
-use crate::prelude::*;
-use derive_new::new;
-use getset::Getters;
-use nu_errors::ShellError;
-use nu_parser::hir;
-use nu_protocol::{CallInfo, EvaluatedArgs, ReturnValue, Scope, Signature, Value};
-use serde::{Deserialize, Serialize};
-use std::ops::Deref;
-use std::sync::atomic::AtomicBool;
-
-#[derive(Deserialize, Serialize, Debug, Clone)]
-pub struct UnevaluatedCallInfo {
-    pub args: hir::Call,
-    pub source: Text,
-    pub name_tag: Tag,
-}
-
-impl UnevaluatedCallInfo {
-    pub fn evaluate(
-        self,
-        registry: &CommandRegistry,
-        scope: &Scope,
-    ) -> Result<CallInfo, ShellError> {
-        let args = evaluate_args(&self.args, registry, scope, &self.source)?;
-
-        Ok(CallInfo {
-            args,
-            name_tag: self.name_tag,
-        })
-    }
-
-    pub fn switch_present(&self, switch: &str) -> bool {
-        self.args.switch_preset(switch)
-    }
-}
-
-pub trait CallInfoExt {
-    fn process<'de, T: Deserialize<'de>>(
-        &self,
-        shell_manager: &ShellManager,
-        ctrl_c: Arc<AtomicBool>,
-        callback: fn(T, &RunnablePerItemContext) -> Result<OutputStream, ShellError>,
-    ) -> Result<RunnablePerItemArgs<T>, ShellError>;
-}
-
-impl CallInfoExt for CallInfo {
-    fn process<'de, T: Deserialize<'de>>(
-        &self,
-        shell_manager: &ShellManager,
-        ctrl_c: Arc<AtomicBool>,
-        callback: fn(T, &RunnablePerItemContext) -> Result<OutputStream, ShellError>,
-    ) -> Result<RunnablePerItemArgs<T>, ShellError> {
-        let mut deserializer = ConfigDeserializer::from_call_info(self.clone());
-
-        Ok(RunnablePerItemArgs {
-            args: T::deserialize(&mut deserializer)?,
-            context: RunnablePerItemContext {
-                shell_manager: shell_manager.clone(),
-                name: self.name_tag.clone(),
-                ctrl_c,
-            },
-            callback,
-        })
-    }
-}
-
-#[derive(Getters)]
-#[get = "pub(crate)"]
-pub struct CommandArgs {
-    pub host: Arc<parking_lot::Mutex<Box<dyn Host>>>,
-    pub ctrl_c: Arc<AtomicBool>,
-    pub shell_manager: ShellManager,
-    pub call_info: UnevaluatedCallInfo,
-    pub input: InputStream,
-}
-
-#[derive(Getters, Clone)]
-#[get = "pub(crate)"]
-pub struct RawCommandArgs {
-    pub host: Arc<parking_lot::Mutex<Box<dyn Host>>>,
-    pub ctrl_c: Arc<AtomicBool>,
-    pub shell_manager: ShellManager,
-    pub call_info: UnevaluatedCallInfo,
-}
-
-impl RawCommandArgs {
-    pub fn with_input(self, input: impl Into<InputStream>) -> CommandArgs {
-        CommandArgs {
-            host: self.host,
-            ctrl_c: self.ctrl_c,
-            shell_manager: self.shell_manager,
-            call_info: self.call_info,
-            input: input.into(),
-        }
-    }
-}
-
-impl std::fmt::Debug for CommandArgs {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        self.call_info.fmt(f)
-    }
-}
-
-impl CommandArgs {
-    pub fn evaluate_once(
-        self,
-        registry: &CommandRegistry,
-    ) -> Result<EvaluatedWholeStreamCommandArgs, ShellError> {
-        let host = self.host.clone();
-        let ctrl_c = self.ctrl_c.clone();
-        let shell_manager = self.shell_manager.clone();
-        let input = self.input;
-        let call_info = self.call_info.evaluate(registry, &Scope::empty())?;
-
-        Ok(EvaluatedWholeStreamCommandArgs::new(
-            host,
-            ctrl_c,
-            shell_manager,
-            call_info,
-            input,
-        ))
-    }
-
-    pub fn evaluate_once_with_scope(
-        self,
-        registry: &CommandRegistry,
-        scope: &Scope,
-    ) -> Result<EvaluatedWholeStreamCommandArgs, ShellError> {
-        let host = self.host.clone();
-        let ctrl_c = self.ctrl_c.clone();
-        let shell_manager = self.shell_manager.clone();
-        let input = self.input;
-        let call_info = self.call_info.evaluate(registry, scope)?;
-
-        Ok(EvaluatedWholeStreamCommandArgs::new(
-            host,
-            ctrl_c,
-            shell_manager,
-            call_info,
-            input,
-        ))
-    }
-
-    pub fn source(&self) -> Text {
-        self.call_info.source.clone()
-    }
-
-    pub fn process<'de, T: Deserialize<'de>, O: ToOutputStream>(
-        self,
-        registry: &CommandRegistry,
-        callback: fn(T, RunnableContext) -> Result<O, ShellError>,
-    ) -> Result<RunnableArgs<T, O>, ShellError> {
-        let shell_manager = self.shell_manager.clone();
-        let host = self.host.clone();
-        let source = self.source();
-        let ctrl_c = self.ctrl_c.clone();
-        let args = self.evaluate_once(registry)?;
-        let call_info = args.call_info.clone();
-        let (input, args) = args.split();
-        let name_tag = args.call_info.name_tag;
-        let mut deserializer = ConfigDeserializer::from_call_info(call_info);
-
-        Ok(RunnableArgs {
-            args: T::deserialize(&mut deserializer)?,
-            context: RunnableContext {
-                input,
-                commands: registry.clone(),
-                source,
-                shell_manager,
-                name: name_tag,
-                host,
-                ctrl_c,
-            },
-            callback,
-        })
-    }
-
-    pub fn process_raw<'de, T: Deserialize<'de>>(
-        self,
-        registry: &CommandRegistry,
-        callback: fn(T, RunnableContext, RawCommandArgs) -> Result<OutputStream, ShellError>,
-    ) -> Result<RunnableRawArgs<T>, ShellError> {
-        let raw_args = RawCommandArgs {
-            host: self.host.clone(),
-            ctrl_c: self.ctrl_c.clone(),
-            shell_manager: self.shell_manager.clone(),
-            call_info: self.call_info.clone(),
-        };
-
-        let shell_manager = self.shell_manager.clone();
-        let host = self.host.clone();
-        let source = self.source();
-        let ctrl_c = self.ctrl_c.clone();
-        let args = self.evaluate_once(registry)?;
-        let call_info = args.call_info.clone();
-
-        let (input, args) = args.split();
-        let name_tag = args.call_info.name_tag;
-        let mut deserializer = ConfigDeserializer::from_call_info(call_info);
-
-        Ok(RunnableRawArgs {
-            args: T::deserialize(&mut deserializer)?,
-            context: RunnableContext {
-                input,
-                commands: registry.clone(),
-                source,
-                shell_manager,
-                name: name_tag,
-                host,
-                ctrl_c,
-            },
-            raw_args,
-            callback,
-        })
-    }
-}
-
-pub struct RunnablePerItemContext {
-    pub shell_manager: ShellManager,
-    pub name: Tag,
-    pub ctrl_c: Arc<AtomicBool>,
-}
-
-pub struct RunnableContext {
-    pub input: InputStream,
-    pub shell_manager: ShellManager,
-    pub host: Arc<parking_lot::Mutex<Box<dyn Host>>>,
-    pub source: Text,
-    pub ctrl_c: Arc<AtomicBool>,
-    pub commands: CommandRegistry,
-    pub name: Tag,
-}
-
-impl RunnableContext {
-    pub fn get_command(&self, name: &str) -> Option<Arc<Command>> {
-        self.commands.get_command(name)
-    }
-}
-
-pub struct RunnablePerItemArgs<T> {
-    args: T,
-    context: RunnablePerItemContext,
-    callback: fn(T, &RunnablePerItemContext) -> Result<OutputStream, ShellError>,
-}
-
-impl<T> RunnablePerItemArgs<T> {
-    pub fn run(self) -> Result<OutputStream, ShellError> {
-        (self.callback)(self.args, &self.context)
-    }
-}
-
-pub struct RunnableArgs<T, O: ToOutputStream> {
-    args: T,
-    context: RunnableContext,
-    callback: fn(T, RunnableContext) -> Result<O, ShellError>,
-}
-
-impl<T, O: ToOutputStream> RunnableArgs<T, O> {
-    pub fn run(self) -> Result<OutputStream, ShellError> {
-        (self.callback)(self.args, self.context).map(|v| v.to_output_stream())
-    }
-}
-
-pub struct RunnableRawArgs<T> {
-    args: T,
-    raw_args: RawCommandArgs,
-    context: RunnableContext,
-    callback: fn(T, RunnableContext, RawCommandArgs) -> Result<OutputStream, ShellError>,
-}
-
-impl<T> RunnableRawArgs<T> {
-    pub fn run(self) -> OutputStream {
-        match (self.callback)(self.args, self.context, self.raw_args) {
-            Ok(stream) => stream,
-            Err(err) => OutputStream::one(Err(err)),
-        }
-    }
-}
-
-pub struct EvaluatedWholeStreamCommandArgs {
-    pub args: EvaluatedCommandArgs,
-    pub input: InputStream,
-}
-
-impl Deref for EvaluatedWholeStreamCommandArgs {
-    type Target = EvaluatedCommandArgs;
-    fn deref(&self) -> &Self::Target {
-        &self.args
-    }
-}
-
-impl EvaluatedWholeStreamCommandArgs {
-    pub fn new(
-        host: Arc<parking_lot::Mutex<dyn Host>>,
-        ctrl_c: Arc<AtomicBool>,
-        shell_manager: ShellManager,
-        call_info: CallInfo,
-        input: impl Into<InputStream>,
-    ) -> EvaluatedWholeStreamCommandArgs {
-        EvaluatedWholeStreamCommandArgs {
-            args: EvaluatedCommandArgs {
-                host,
-                ctrl_c,
-                shell_manager,
-                call_info,
-            },
-            input: input.into(),
-        }
-    }
-
-    pub fn name_tag(&self) -> Tag {
-        self.args.call_info.name_tag.clone()
-    }
-
-    pub fn parts(self) -> (InputStream, EvaluatedArgs) {
-        let EvaluatedWholeStreamCommandArgs { args, input } = self;
-
-        (input, args.call_info.args)
-    }
-
-    pub fn split(self) -> (InputStream, EvaluatedCommandArgs) {
-        let EvaluatedWholeStreamCommandArgs { args, input } = self;
-
-        (input, args)
-    }
-}
-
-#[derive(Getters)]
-#[get = "pub"]
-pub struct EvaluatedFilterCommandArgs {
-    args: EvaluatedCommandArgs,
-}
-
-impl Deref for EvaluatedFilterCommandArgs {
-    type Target = EvaluatedCommandArgs;
-    fn deref(&self) -> &Self::Target {
-        &self.args
-    }
-}
-
-impl EvaluatedFilterCommandArgs {
-    pub fn new(
-        host: Arc<parking_lot::Mutex<dyn Host>>,
-        ctrl_c: Arc<AtomicBool>,
-        shell_manager: ShellManager,
-        call_info: CallInfo,
-    ) -> EvaluatedFilterCommandArgs {
-        EvaluatedFilterCommandArgs {
-            args: EvaluatedCommandArgs {
-                host,
-                ctrl_c,
-                shell_manager,
-                call_info,
-            },
-        }
-    }
-}
-
-#[derive(Getters, new)]
-#[get = "pub(crate)"]
-pub struct EvaluatedCommandArgs {
-    pub host: Arc<parking_lot::Mutex<dyn Host>>,
-    pub ctrl_c: Arc<AtomicBool>,
-    pub shell_manager: ShellManager,
-    pub call_info: CallInfo,
-}
-
-impl EvaluatedCommandArgs {
-    pub fn nth(&self, pos: usize) -> Option<&Value> {
-        self.call_info.args.nth(pos)
-    }
-
-    pub fn get(&self, name: &str) -> Option<&Value> {
-        self.call_info.args.get(name)
-    }
-
-    pub fn has(&self, name: &str) -> bool {
-        self.call_info.args.has(name)
-    }
-}
-
-pub trait WholeStreamCommand: Send + Sync {
-    fn name(&self) -> &str;
-
-    fn signature(&self) -> Signature {
-        Signature::new(self.name()).desc(self.usage()).filter()
-    }
-
-    fn usage(&self) -> &str;
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError>;
-
-    fn is_binary(&self) -> bool {
-        false
-    }
-}
-
-pub trait PerItemCommand: Send + Sync {
-    fn name(&self) -> &str;
-
-    fn signature(&self) -> Signature {
-        Signature::new(self.name()).desc(self.usage()).filter()
-    }
-
-    fn usage(&self) -> &str;
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        input: Value,
-    ) -> Result<OutputStream, ShellError>;
-
-    fn is_binary(&self) -> bool {
-        false
-    }
-}
-
-pub enum Command {
-    WholeStream(Arc<dyn WholeStreamCommand>),
-    PerItem(Arc<dyn PerItemCommand>),
-}
-
-impl PrettyDebugWithSource for Command {
-    fn pretty_debug(&self, source: &str) -> DebugDocBuilder {
-        match self {
-            Command::WholeStream(command) => b::typed(
-                "whole stream command",
-                b::description(command.name())
-                    + b::space()
-                    + b::equals()
-                    + b::space()
-                    + command.signature().pretty_debug(source),
-            ),
-            Command::PerItem(command) => b::typed(
-                "per item command",
-                b::description(command.name())
-                    + b::space()
-                    + b::equals()
-                    + b::space()
-                    + command.signature().pretty_debug(source),
-            ),
-        }
-    }
-}
-
-impl std::fmt::Debug for Command {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self {
-            Command::WholeStream(command) => write!(f, "WholeStream({})", command.name()),
-            Command::PerItem(command) => write!(f, "PerItem({})", command.name()),
-        }
-    }
-}
-
-impl Command {
-    pub fn name(&self) -> &str {
-        match self {
-            Command::WholeStream(command) => command.name(),
-            Command::PerItem(command) => command.name(),
-        }
-    }
-
-    pub fn signature(&self) -> Signature {
-        match self {
-            Command::WholeStream(command) => command.signature(),
-            Command::PerItem(command) => command.signature(),
-        }
-    }
-
-    pub fn usage(&self) -> &str {
-        match self {
-            Command::WholeStream(command) => command.usage(),
-            Command::PerItem(command) => command.usage(),
-        }
-    }
-
-    pub fn run(&self, args: CommandArgs, registry: &CommandRegistry) -> OutputStream {
-        if args.call_info.switch_present("help") {
-            get_help(self.name(), self.usage(), self.signature()).into()
-        } else {
-            match self {
-                Command::WholeStream(command) => match command.run(args, registry) {
-                    Ok(stream) => stream,
-                    Err(err) => OutputStream::one(Err(err)),
-                },
-                Command::PerItem(command) => {
-                    self.run_helper(command.clone(), args, registry.clone())
-                }
-            }
-        }
-    }
-
-    fn run_helper(
-        &self,
-        command: Arc<dyn PerItemCommand>,
-        args: CommandArgs,
-        registry: CommandRegistry,
-    ) -> OutputStream {
-        let raw_args = RawCommandArgs {
-            host: args.host,
-            ctrl_c: args.ctrl_c,
-            shell_manager: args.shell_manager,
-            call_info: args.call_info,
-        };
-
-        let out = args
-            .input
-            .values
-            .map(move |x| {
-                let call_info = raw_args
-                    .clone()
-                    .call_info
-                    .evaluate(&registry, &Scope::it_value(x.clone()));
-
-                match call_info {
-                    Ok(call_info) => match command.run(&call_info, &registry, &raw_args, x) {
-                        Ok(o) => o,
-                        Err(e) => {
-                            futures::stream::iter(vec![ReturnValue::Err(e)]).to_output_stream()
-                        }
-                    },
-                    Err(e) => futures::stream::iter(vec![ReturnValue::Err(e)]).to_output_stream(),
-                }
-            })
-            .flatten();
-
-        out.to_output_stream()
-    }
-
-    pub fn is_binary(&self) -> bool {
-        match self {
-            Command::WholeStream(command) => command.is_binary(),
-            Command::PerItem(command) => command.is_binary(),
-        }
-    }
-}
-
-pub struct FnFilterCommand {
-    name: String,
-    func: fn(EvaluatedFilterCommandArgs) -> Result<OutputStream, ShellError>,
-}
-
-impl WholeStreamCommand for FnFilterCommand {
-    fn name(&self) -> &str {
-        &self.name
-    }
-
-    fn usage(&self) -> &str {
-        "usage"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        let CommandArgs {
-            host,
-            ctrl_c,
-            shell_manager,
-            call_info,
-            input,
-        } = args;
-
-        let host: Arc<parking_lot::Mutex<dyn Host>> = host.clone();
-        let registry: CommandRegistry = registry.clone();
-        let func = self.func;
-
-        let result = input.values.map(move |it| {
-            let registry = registry.clone();
-            let call_info = match call_info.clone().evaluate(&registry, &Scope::it_value(it)) {
-                Err(err) => return OutputStream::from(vec![Err(err)]).values,
-                Ok(args) => args,
-            };
-
-            let args = EvaluatedFilterCommandArgs::new(
-                host.clone(),
-                ctrl_c.clone(),
-                shell_manager.clone(),
-                call_info,
-            );
-
-            match func(args) {
-                Err(err) => OutputStream::from(vec![Err(err)]).values,
-                Ok(stream) => stream.values,
-            }
-        });
-
-        let result = result.flatten();
-        let result: BoxStream<ReturnValue> = result.boxed();
-
-        Ok(result.into())
-    }
-}
-
-pub fn whole_stream_command(command: impl WholeStreamCommand + 'static) -> Arc<Command> {
-    Arc::new(Command::WholeStream(Arc::new(command)))
-}
-
-pub fn per_item_command(command: impl PerItemCommand + 'static) -> Arc<Command> {
-    Arc::new(Command::PerItem(Arc::new(command)))
-}

crates/nu-cli/src/commands/compact.rs

@@ -1,61 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use futures::stream::StreamExt;
-use nu_errors::ShellError;
-use nu_protocol::{Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::Tagged;
-
-pub struct Compact;
-
-#[derive(Deserialize)]
-pub struct CompactArgs {
-    rest: Vec<Tagged<String>>,
-}
-
-impl WholeStreamCommand for Compact {
-    fn name(&self) -> &str {
-        "compact"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("compact").rest(SyntaxShape::Any, "the columns to compact from the table")
-    }
-
-    fn usage(&self) -> &str {
-        "Creates a table with non-empty rows"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, compact)?.run()
-    }
-}
-
-pub fn compact(
-    CompactArgs { rest: columns }: CompactArgs,
-    RunnableContext { input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let objects = input.values.filter(move |item| {
-        let keep = if columns.is_empty() {
-            item.is_some()
-        } else {
-            match item {
-                Value {
-                    value: UntaggedValue::Row(ref r),
-                    ..
-                } => columns
-                    .iter()
-                    .all(|field| r.get_data(field).borrow().is_some()),
-                _ => false,
-            }
-        };
-
-        futures::future::ready(keep)
-    });
-
-    Ok(objects.from_input_stream())
-}

crates/nu-cli/src/commands/config.rs

@@ -1,188 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::data::config;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::Tagged;
-use std::path::PathBuf;
-
-pub struct Config;
-
-#[derive(Deserialize)]
-pub struct ConfigArgs {
-    load: Option<Tagged<PathBuf>>,
-    set: Option<(Tagged<String>, Value)>,
-    set_into: Option<Tagged<String>>,
-    get: Option<Tagged<String>>,
-    clear: Tagged<bool>,
-    remove: Option<Tagged<String>>,
-    path: Tagged<bool>,
-}
-
-impl WholeStreamCommand for Config {
-    fn name(&self) -> &str {
-        "config"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("config")
-            .named(
-                "load",
-                SyntaxShape::Path,
-                "load the config from the path give",
-                Some('l'),
-            )
-            .named(
-                "set",
-                SyntaxShape::Any,
-                "set a value in the config, eg) --set [key value]",
-                Some('s'),
-            )
-            .named(
-                "set_into",
-                SyntaxShape::Member,
-                "sets a variable from values in the pipeline",
-                Some('i'),
-            )
-            .named(
-                "get",
-                SyntaxShape::Any,
-                "get a value from the config",
-                Some('g'),
-            )
-            .named(
-                "remove",
-                SyntaxShape::Any,
-                "remove a value from the config",
-                Some('r'),
-            )
-            .switch("clear", "clear the config", Some('c'))
-            .switch("path", "return the path to the config file", Some('p'))
-    }
-
-    fn usage(&self) -> &str {
-        "Configuration management."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, config)?.run()
-    }
-}
-
-pub fn config(
-    ConfigArgs {
-        load,
-        set,
-        set_into,
-        get,
-        clear,
-        remove,
-        path,
-    }: ConfigArgs,
-    RunnableContext { name, input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let name_span = name.clone();
-
-    let stream = async_stream! {
-        let configuration = if let Some(supplied) = load {
-            Some(supplied.item().clone())
-        } else {
-            None
-        };
-
-        let mut result = crate::data::config::read(name_span, &configuration)?;
-
-        if let Some(v) = get {
-            let key = v.to_string();
-            let value = result
-                .get(&key)
-                .ok_or_else(|| ShellError::labeled_error("Missing key in config", "key", v.tag()))?;
-
-            match value {
-                Value {
-                    value: UntaggedValue::Table(list),
-                    ..
-                } => {
-                    for l in list {
-                        let value = l.clone();
-                        yield ReturnSuccess::value(l.clone());
-                    }
-                }
-                x => yield ReturnSuccess::value(x.clone()),
-            }
-        }
-        else if let Some((key, value)) = set {
-            result.insert(key.to_string(), value.clone());
-
-            config::write(&result, &configuration)?;
-
-            yield ReturnSuccess::value(UntaggedValue::Row(result.into()).into_value(&value.tag));
-        }
-        else if let Some(v) = set_into {
-            let rows: Vec<Value> = input.values.collect().await;
-            let key = v.to_string();
-
-            if rows.len() == 0 {
-                yield Err(ShellError::labeled_error("No values given for set_into", "needs value(s) from pipeline", v.tag()));
-            } else if rows.len() == 1 {
-                // A single value
-                let value = &rows[0];
-
-                result.insert(key.to_string(), value.clone());
-
-                config::write(&result, &configuration)?;
-
-                yield ReturnSuccess::value(UntaggedValue::Row(result.into()).into_value(name));
-            } else {
-                // Take in the pipeline as a table
-                let value = UntaggedValue::Table(rows).into_value(name.clone());
-
-                result.insert(key.to_string(), value.clone());
-
-                config::write(&result, &configuration)?;
-
-                yield ReturnSuccess::value(UntaggedValue::Row(result.into()).into_value(name));
-            }
-        }
-        else if let Tagged { item: true, tag } = clear {
-            result.clear();
-
-            config::write(&result, &configuration)?;
-
-            yield ReturnSuccess::value(UntaggedValue::Row(result.into()).into_value(tag));
-
-            return;
-        }
-        else if let Tagged { item: true, tag } = path {
-            let path = config::default_path_for(&configuration)?;
-
-            yield ReturnSuccess::value(UntaggedValue::Primitive(Primitive::Path(path)).into_value(tag));
-        }
-        else if let Some(v) = remove {
-            let key = v.to_string();
-
-            if result.contains_key(&key) {
-                result.swap_remove(&key);
-                config::write(&result, &configuration)?
-            } else {
-                yield Err(ShellError::labeled_error(
-                    "Key does not exist in config",
-                    "key",
-                    v.tag(),
-                ));
-            }
-
-            yield ReturnSuccess::value(UntaggedValue::Row(result.into()).into_value(v.tag()));
-        }
-        else {
-            yield ReturnSuccess::value(UntaggedValue::Row(result.into()).into_value(name));
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/count.rs

@@ -1,46 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use futures::stream::StreamExt;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, UntaggedValue, Value};
-
-pub struct Count;
-
-#[derive(Deserialize)]
-pub struct CountArgs {}
-
-impl WholeStreamCommand for Count {
-    fn name(&self) -> &str {
-        "count"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("count")
-    }
-
-    fn usage(&self) -> &str {
-        "Show the total number of rows."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, count)?.run()
-    }
-}
-
-pub fn count(
-    CountArgs {}: CountArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let rows: Vec<Value> = input.values.collect().await;
-
-        yield ReturnSuccess::value(UntaggedValue::int(rows.len()).into_value(name))
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/cp.rs

@@ -1,54 +0,0 @@
-use crate::commands::command::RunnablePerItemContext;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, Signature, SyntaxShape, Value};
-use nu_source::Tagged;
-use std::path::PathBuf;
-
-pub struct Cpy;
-
-#[derive(Deserialize)]
-pub struct CopyArgs {
-    pub src: Tagged<PathBuf>,
-    pub dst: Tagged<PathBuf>,
-    pub recursive: Tagged<bool>,
-}
-
-impl PerItemCommand for Cpy {
-    fn name(&self) -> &str {
-        "cp"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("cp")
-            .required("src", SyntaxShape::Pattern, "the place to copy from")
-            .required("dst", SyntaxShape::Path, "the place to copy to")
-            .switch(
-                "recursive",
-                "copy recursively through subdirectories",
-                Some('r'),
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Copy files."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        call_info
-            .process(&raw_args.shell_manager, raw_args.ctrl_c.clone(), cp)?
-            .run()
-    }
-}
-
-fn cp(args: CopyArgs, context: &RunnablePerItemContext) -> Result<OutputStream, ShellError> {
-    let shell_manager = context.shell_manager.clone();
-    shell_manager.cp(args, context)
-}

crates/nu-cli/src/commands/date.rs

@@ -1,95 +0,0 @@
-use crate::prelude::*;
-use chrono::{DateTime, Local, Utc};
-use nu_errors::ShellError;
-use nu_protocol::{Dictionary, Value};
-
-use crate::commands::WholeStreamCommand;
-use chrono::{Datelike, TimeZone, Timelike};
-use core::fmt::Display;
-use indexmap::IndexMap;
-use nu_protocol::{Signature, UntaggedValue};
-
-pub struct Date;
-
-impl WholeStreamCommand for Date {
-    fn name(&self) -> &str {
-        "date"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("date")
-            .switch("utc", "use universal time (UTC)", Some('u'))
-            .switch("local", "use the local time", Some('l'))
-    }
-
-    fn usage(&self) -> &str {
-        "Get the current datetime."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        date(args, registry)
-    }
-}
-
-pub fn date_to_value<T: TimeZone>(dt: DateTime<T>, tag: Tag) -> Value
-where
-    T::Offset: Display,
-{
-    let mut indexmap = IndexMap::new();
-
-    indexmap.insert(
-        "year".to_string(),
-        UntaggedValue::int(dt.year()).into_value(&tag),
-    );
-    indexmap.insert(
-        "month".to_string(),
-        UntaggedValue::int(dt.month()).into_value(&tag),
-    );
-    indexmap.insert(
-        "day".to_string(),
-        UntaggedValue::int(dt.day()).into_value(&tag),
-    );
-    indexmap.insert(
-        "hour".to_string(),
-        UntaggedValue::int(dt.hour()).into_value(&tag),
-    );
-    indexmap.insert(
-        "minute".to_string(),
-        UntaggedValue::int(dt.minute()).into_value(&tag),
-    );
-    indexmap.insert(
-        "second".to_string(),
-        UntaggedValue::int(dt.second()).into_value(&tag),
-    );
-
-    let tz = dt.offset();
-    indexmap.insert(
-        "timezone".to_string(),
-        UntaggedValue::string(format!("{}", tz)).into_value(&tag),
-    );
-
-    UntaggedValue::Row(Dictionary::from(indexmap)).into_value(&tag)
-}
-
-pub fn date(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-
-    let mut date_out = VecDeque::new();
-    let tag = args.call_info.name_tag.clone();
-
-    let value = if args.has("utc") {
-        let utc: DateTime<Utc> = Utc::now();
-        date_to_value(utc, tag)
-    } else {
-        let local: DateTime<Local> = Local::now();
-        date_to_value(local, tag)
-    };
-
-    date_out.push_back(value);
-
-    Ok(futures::stream::iter(date_out).to_output_stream())
-}

crates/nu-cli/src/commands/default.rs

@@ -1,76 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::Tagged;
-use nu_value_ext::ValueExt;
-
-#[derive(Deserialize)]
-struct DefaultArgs {
-    column: Tagged<String>,
-    value: Value,
-}
-
-pub struct Default;
-
-impl WholeStreamCommand for Default {
-    fn name(&self) -> &str {
-        "default"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("default")
-            .required("column name", SyntaxShape::String, "the name of the column")
-            .required(
-                "column value",
-                SyntaxShape::Any,
-                "the value of the column to default",
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Sets a default row's column if missing."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, default)?.run()
-    }
-}
-
-fn default(
-    DefaultArgs { column, value }: DefaultArgs,
-    RunnableContext { input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = input
-        .values
-        .map(move |item| {
-            let mut result = VecDeque::new();
-
-            let should_add = match item {
-                Value {
-                    value: UntaggedValue::Row(ref r),
-                    ..
-                } => r.get_data(&column.item).borrow().is_none(),
-                _ => false,
-            };
-
-            if should_add {
-                match item.insert_data_at_path(&column.item, value.clone()) {
-                    Some(new_value) => result.push_back(ReturnSuccess::value(new_value)),
-                    None => result.push_back(ReturnSuccess::value(item)),
-                }
-            } else {
-                result.push_back(ReturnSuccess::value(item));
-            }
-
-            futures::stream::iter(result)
-        })
-        .flatten();
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/du.rs

@@ -1,396 +0,0 @@
-extern crate filesize;
-
-use crate::commands::command::RunnablePerItemContext;
-use crate::prelude::*;
-use filesize::file_real_size_fast;
-use glob::*;
-use indexmap::map::IndexMap;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::Tagged;
-use std::path::PathBuf;
-use std::sync::atomic::Ordering;
-
-const NAME: &str = "du";
-const GLOB_PARAMS: MatchOptions = MatchOptions {
-    case_sensitive: true,
-    require_literal_separator: true,
-    require_literal_leading_dot: false,
-};
-
-pub struct Du;
-
-#[derive(Deserialize, Clone)]
-pub struct DuArgs {
-    path: Option<Tagged<PathBuf>>,
-    all: bool,
-    deref: bool,
-    exclude: Option<Tagged<String>>,
-    #[serde(rename = "max-depth")]
-    max_depth: Option<Tagged<u64>>,
-    #[serde(rename = "min-size")]
-    min_size: Option<Tagged<u64>>,
-}
-
-impl PerItemCommand for Du {
-    fn name(&self) -> &str {
-        NAME
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build(NAME)
-            .optional("path", SyntaxShape::Pattern, "starting directory")
-            .switch(
-                "all",
-                "Output File sizes as well as directory sizes",
-                Some('a'),
-            )
-            .switch(
-                "deref",
-                "Dereference symlinks to their targets for size",
-                Some('r'),
-            )
-            .named(
-                "exclude",
-                SyntaxShape::Pattern,
-                "Exclude these file names",
-                Some('x'),
-            )
-            .named(
-                "max-depth",
-                SyntaxShape::Int,
-                "Directory recursion limit",
-                Some('d'),
-            )
-            .named(
-                "min-size",
-                SyntaxShape::Int,
-                "Exclude files below this size",
-                Some('m'),
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Find disk usage sizes of specified items"
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        call_info
-            .process(&raw_args.shell_manager, raw_args.ctrl_c.clone(), du)?
-            .run()
-    }
-}
-
-fn du(args: DuArgs, ctx: &RunnablePerItemContext) -> Result<OutputStream, ShellError> {
-    let tag = ctx.name.clone();
-
-    let exclude = args
-        .exclude
-        .clone()
-        .map_or(Ok(None), move |x| match Pattern::new(&x.item) {
-            Ok(p) => Ok(Some(p)),
-            Err(e) => Err(ShellError::labeled_error(
-                e.msg,
-                "Glob error",
-                x.tag.clone(),
-            )),
-        })?;
-    let path = args.path.clone();
-    let filter_files = path.is_none();
-    let paths = match path {
-        Some(p) => match glob::glob_with(
-            p.item.to_str().expect("Why isn't this encoded properly?"),
-            GLOB_PARAMS,
-        ) {
-            Ok(g) => Ok(g),
-            Err(e) => Err(ShellError::labeled_error(
-                e.msg,
-                "Glob error",
-                p.tag.clone(),
-            )),
-        },
-        None => match glob::glob_with("*", GLOB_PARAMS) {
-            Ok(g) => Ok(g),
-            Err(e) => Err(ShellError::labeled_error(e.msg, "Glob error", tag.clone())),
-        },
-    }?
-    .filter(move |p| {
-        if filter_files {
-            match p {
-                Ok(f) if f.is_dir() => true,
-                Err(e) if e.path().is_dir() => true,
-                _ => false,
-            }
-        } else {
-            true
-        }
-    })
-    .map(move |p| match p {
-        Err(e) => Err(glob_err_into(e)),
-        Ok(s) => Ok(s),
-    });
-
-    let ctrl_c = ctx.ctrl_c.clone();
-    let all = args.all;
-    let deref = args.deref;
-    let max_depth = args.max_depth.map(|f| f.item);
-    let min_size = args.min_size.map(|f| f.item);
-
-    let stream = async_stream! {
-        let params = DirBuilder {
-            tag: tag.clone(),
-            min: min_size,
-            deref,
-            ex: exclude,
-            all,
-        };
-        for path in paths {
-            if ctrl_c.load(Ordering::SeqCst) {
-                break;
-            }
-            match path {
-                Ok(p) => {
-                    if p.is_dir() {
-                        yield Ok(ReturnSuccess::Value(
-                            DirInfo::new(p, &params, max_depth).into(),
-                        ));
-                    } else {
-                        match FileInfo::new(p, deref, tag.clone()) {
-                            Ok(f) => yield Ok(ReturnSuccess::Value(f.into())),
-                            Err(e) => yield Err(e)
-                        }
-                    }
-                }
-                Err(e) => yield Err(e),
-            }
-        }
-    };
-    Ok(stream.to_output_stream())
-}
-
-struct DirBuilder {
-    tag: Tag,
-    min: Option<u64>,
-    deref: bool,
-    ex: Option<Pattern>,
-    all: bool,
-}
-
-struct DirInfo {
-    dirs: Vec<DirInfo>,
-    files: Vec<FileInfo>,
-    errors: Vec<ShellError>,
-    size: u64,
-    blocks: u64,
-    path: PathBuf,
-    tag: Tag,
-}
-
-struct FileInfo {
-    path: PathBuf,
-    size: u64,
-    blocks: Option<u64>,
-    tag: Tag,
-}
-
-impl FileInfo {
-    fn new(path: impl Into<PathBuf>, deref: bool, tag: Tag) -> Result<Self, ShellError> {
-        let path = path.into();
-        let m = if deref {
-            std::fs::metadata(&path)
-        } else {
-            std::fs::symlink_metadata(&path)
-        };
-
-        match m {
-            Ok(d) => {
-                let block_size = file_real_size_fast(&path, &d).ok();
-
-                Ok(FileInfo {
-                    path,
-                    blocks: block_size,
-                    size: d.len(),
-                    tag,
-                })
-            }
-            Err(e) => Err(e.into()),
-        }
-    }
-}
-
-impl DirInfo {
-    fn new(path: impl Into<PathBuf>, params: &DirBuilder, depth: Option<u64>) -> Self {
-        let path = path.into();
-
-        let mut s = Self {
-            dirs: Vec::new(),
-            errors: Vec::new(),
-            files: Vec::new(),
-            size: 0,
-            blocks: 0,
-            tag: params.tag.clone(),
-            path,
-        };
-
-        match std::fs::read_dir(&s.path) {
-            Ok(d) => {
-                for f in d {
-                    match f {
-                        Ok(i) => match i.file_type() {
-                            Ok(t) if t.is_dir() => {
-                                s = s.add_dir(i.path(), depth, &params);
-                            }
-                            Ok(_t) => {
-                                s = s.add_file(i.path(), &params);
-                            }
-                            Err(e) => s = s.add_error(ShellError::from(e)),
-                        },
-                        Err(e) => s = s.add_error(ShellError::from(e)),
-                    }
-                }
-            }
-            Err(e) => s = s.add_error(e.into()),
-        }
-        s
-    }
-
-    fn add_dir(
-        mut self,
-        path: impl Into<PathBuf>,
-        mut depth: Option<u64>,
-        params: &DirBuilder,
-    ) -> Self {
-        if let Some(current) = depth {
-            if let Some(new) = current.checked_sub(1) {
-                depth = Some(new);
-            } else {
-                return self;
-            }
-        }
-
-        let d = DirInfo::new(path, &params, depth);
-        self.size += d.size;
-        self.blocks += d.blocks;
-        self.dirs.push(d);
-        self
-    }
-
-    fn add_file(mut self, f: impl Into<PathBuf>, params: &DirBuilder) -> Self {
-        let f = f.into();
-        let ex = params.ex.as_ref().map_or(false, |x| x.matches_path(&f));
-        if !ex {
-            match FileInfo::new(f, params.deref, self.tag.clone()) {
-                Ok(file) => {
-                    let inc = params.min.map_or(true, |s| file.size >= s);
-                    if inc {
-                        self.size += file.size;
-                        self.blocks += file.blocks.unwrap_or(0);
-                        if params.all {
-                            self.files.push(file);
-                        }
-                    }
-                }
-                Err(e) => self = self.add_error(e),
-            }
-        }
-        self
-    }
-
-    fn add_error(mut self, e: ShellError) -> Self {
-        self.errors.push(e);
-        self
-    }
-}
-
-fn glob_err_into(e: GlobError) -> ShellError {
-    let e = e.into_error();
-    ShellError::from(e)
-}
-
-impl From<DirInfo> for Value {
-    fn from(d: DirInfo) -> Self {
-        let mut r: IndexMap<String, Value> = IndexMap::new();
-        r.insert(
-            "path".to_string(),
-            UntaggedValue::path(d.path).retag(d.tag.clone()),
-        );
-        r.insert(
-            "apparent".to_string(),
-            UntaggedValue::bytes(d.size).retag(d.tag.clone()),
-        );
-        r.insert(
-            "physical".to_string(),
-            UntaggedValue::bytes(d.blocks).retag(d.tag.clone()),
-        );
-        if !d.files.is_empty() {
-            let v = Value {
-                value: UntaggedValue::Table(
-                    d.files
-                        .into_iter()
-                        .map(move |f| f.into())
-                        .collect::<Vec<Value>>(),
-                ),
-                tag: d.tag.clone(),
-            };
-            r.insert("files".to_string(), v);
-        }
-        if !d.dirs.is_empty() {
-            let v = Value {
-                value: UntaggedValue::Table(
-                    d.dirs
-                        .into_iter()
-                        .map(move |d| d.into())
-                        .collect::<Vec<Value>>(),
-                ),
-                tag: d.tag.clone(),
-            };
-            r.insert("directories".to_string(), v);
-        }
-        if !d.errors.is_empty() {
-            let v = Value {
-                value: UntaggedValue::Table(
-                    d.errors
-                        .into_iter()
-                        .map(move |e| UntaggedValue::Error(e).into_untagged_value())
-                        .collect::<Vec<Value>>(),
-                ),
-                tag: d.tag.clone(),
-            };
-            r.insert("errors".to_string(), v);
-        }
-
-        Value {
-            value: UntaggedValue::row(r),
-            tag: d.tag,
-        }
-    }
-}
-
-impl From<FileInfo> for Value {
-    fn from(f: FileInfo) -> Self {
-        let mut r: IndexMap<String, Value> = IndexMap::new();
-        r.insert(
-            "path".to_string(),
-            UntaggedValue::path(f.path).retag(f.tag.clone()),
-        );
-        r.insert(
-            "apparent".to_string(),
-            UntaggedValue::bytes(f.size).retag(f.tag.clone()),
-        );
-        let b = match f.blocks {
-            Some(k) => UntaggedValue::bytes(k).retag(f.tag.clone()),
-            None => UntaggedValue::nothing().retag(f.tag.clone()),
-        };
-        r.insert("physical".to_string(), b);
-        Value {
-            value: UntaggedValue::row(r),
-            tag: f.tag,
-        }
-    }
-}

crates/nu-cli/src/commands/echo.rs

@@ -1,67 +0,0 @@
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-
-pub struct Echo;
-
-impl PerItemCommand for Echo {
-    fn name(&self) -> &str {
-        "echo"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("echo").rest(SyntaxShape::Any, "the values to echo")
-    }
-
-    fn usage(&self) -> &str {
-        "Echo the arguments back to the user."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        run(call_info, registry, raw_args)
-    }
-}
-
-fn run(
-    call_info: &CallInfo,
-    _registry: &CommandRegistry,
-    _raw_args: &RawCommandArgs,
-) -> Result<OutputStream, ShellError> {
-    let mut output = vec![];
-
-    if let Some(ref positional) = call_info.args.positional {
-        for i in positional {
-            match i.as_string() {
-                Ok(s) => {
-                    output.push(Ok(ReturnSuccess::Value(
-                        UntaggedValue::string(s).into_value(i.tag.clone()),
-                    )));
-                }
-                _ => match i {
-                    Value {
-                        value: UntaggedValue::Table(table),
-                        ..
-                    } => {
-                        for value in table {
-                            output.push(Ok(ReturnSuccess::Value(value.clone())));
-                        }
-                    }
-                    _ => {
-                        output.push(Ok(ReturnSuccess::Value(i.clone())));
-                    }
-                },
-            }
-        }
-    }
-
-    // TODO: This whole block can probably be replaced with `.map()`
-    let stream = futures::stream::iter(output);
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/edit.rs

@@ -1,72 +0,0 @@
-use crate::commands::PerItemCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_value_ext::ValueExt;
-
-pub struct Edit;
-
-impl PerItemCommand for Edit {
-    fn name(&self) -> &str {
-        "edit"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("edit")
-            .required(
-                "Field",
-                SyntaxShape::ColumnPath,
-                "the name of the column to edit",
-            )
-            .required(
-                "Value",
-                SyntaxShape::String,
-                "the new value to give the cell(s)",
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Edit an existing column to have a new value."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        _raw_args: &RawCommandArgs,
-        value: Value,
-    ) -> Result<OutputStream, ShellError> {
-        let value_tag = value.tag();
-        let field = call_info.args.expect_nth(0)?.as_column_path()?;
-        let replacement = call_info.args.expect_nth(1)?.tagged_unknown();
-
-        let stream = match value {
-            obj
-            @
-            Value {
-                value: UntaggedValue::Row(_),
-                ..
-            } => match obj.replace_data_at_column_path(&field, replacement.item.clone()) {
-                Some(v) => futures::stream::iter(vec![Ok(ReturnSuccess::Value(v))]),
-                None => {
-                    return Err(ShellError::labeled_error(
-                        "edit could not find place to insert column",
-                        "column name",
-                        &field.tag,
-                    ))
-                }
-            },
-
-            _ => {
-                return Err(ShellError::labeled_error(
-                    "Unrecognized type in stream",
-                    "original value",
-                    value_tag,
-                ))
-            }
-        };
-
-        Ok(stream.to_output_stream())
-    }
-}

crates/nu-cli/src/commands/enter.rs

@@ -1,156 +0,0 @@
-use crate::commands::PerItemCommand;
-use crate::commands::UnevaluatedCallInfo;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{
-    CallInfo, CommandAction, Primitive, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value,
-};
-
-pub struct Enter;
-
-impl PerItemCommand for Enter {
-    fn name(&self) -> &str {
-        "enter"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("enter").required(
-            "location",
-            SyntaxShape::Path,
-            "the location to create a new shell from",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Create a new shell and begin at this path."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        let registry = registry.clone();
-        let raw_args = raw_args.clone();
-        match call_info.args.expect_nth(0)? {
-            Value {
-                value: UntaggedValue::Primitive(Primitive::Path(location)),
-                tag,
-                ..
-            } => {
-                let location_string = location.display().to_string();
-                let location_clone = location_string.clone();
-                let tag_clone = tag.clone();
-
-                if location_string.starts_with("help") {
-                    let spec = location_string.split(':').collect::<Vec<&str>>();
-
-                    if spec.len() == 2 {
-                        let (_, command) = (spec[0], spec[1]);
-
-                        if registry.has(command) {
-                            return Ok(vec![Ok(ReturnSuccess::Action(
-                                CommandAction::EnterHelpShell(
-                                    UntaggedValue::string(command).into_value(Tag::unknown()),
-                                ),
-                            ))]
-                            .into());
-                        }
-                    }
-                    Ok(vec![Ok(ReturnSuccess::Action(CommandAction::EnterHelpShell(
-                        UntaggedValue::nothing().into_value(Tag::unknown()),
-                    )))]
-                    .into())
-                } else if location.is_dir() {
-                    Ok(vec![Ok(ReturnSuccess::Action(CommandAction::EnterShell(
-                        location_clone,
-                    )))]
-                    .into())
-                } else {
-                    let stream = async_stream! {
-                        // If it's a file, attempt to open the file as a value and enter it
-                        let cwd = raw_args.shell_manager.path();
-
-                        let full_path = std::path::PathBuf::from(cwd);
-
-                        let (file_extension, contents, contents_tag) =
-                            crate::commands::open::fetch(
-                                &full_path,
-                                &location_clone,
-                                tag_clone.span,
-                            ).await?;
-
-                        match contents {
-                            UntaggedValue::Primitive(Primitive::String(_)) => {
-                                let tagged_contents = contents.into_value(&contents_tag);
-
-                                if let Some(extension) = file_extension {
-                                    let command_name = format!("from-{}", extension);
-                                    if let Some(converter) =
-                                        registry.get_command(&command_name)
-                                    {
-                                        let new_args = RawCommandArgs {
-                                            host: raw_args.host,
-                                            ctrl_c: raw_args.ctrl_c,
-                                            shell_manager: raw_args.shell_manager,
-                                            call_info: UnevaluatedCallInfo {
-                                                args: nu_parser::hir::Call {
-                                                    head: raw_args.call_info.args.head,
-                                                    positional: None,
-                                                    named: None,
-                                                    span: Span::unknown()
-                                                },
-                                                source: raw_args.call_info.source,
-                                                name_tag: raw_args.call_info.name_tag,
-                                            },
-                                        };
-                                        let mut result = converter.run(
-                                            new_args.with_input(vec![tagged_contents]),
-                                            &registry,
-                                        );
-                                        let result_vec: Vec<Result<ReturnSuccess, ShellError>> =
-                                            result.drain_vec().await;
-                                        for res in result_vec {
-                                            match res {
-                                                Ok(ReturnSuccess::Value(Value {
-                                                    value,
-                                                    ..
-                                                })) => {
-                                                    yield Ok(ReturnSuccess::Action(CommandAction::EnterValueShell(
-                                                        Value {
-                                                            value,
-                                                            tag: contents_tag.clone(),
-                                                        })));
-                                                }
-                                                x => yield x,
-                                            }
-                                        }
-                                    } else {
-                                        yield Ok(ReturnSuccess::Action(CommandAction::EnterValueShell(tagged_contents)));
-                                    }
-                                } else {
-                                    yield Ok(ReturnSuccess::Action(CommandAction::EnterValueShell(tagged_contents)));
-                                }
-                            }
-                            _ => {
-                                let tagged_contents = contents.into_value(contents_tag);
-
-                                yield Ok(ReturnSuccess::Action(CommandAction::EnterValueShell(tagged_contents)));
-                            }
-                        }
-                    };
-                    Ok(stream.to_output_stream())
-                }
-            }
-            x => Ok(
-                vec![Ok(ReturnSuccess::Action(CommandAction::EnterValueShell(
-                    x.clone(),
-                )))]
-                .into(),
-            ),
-        }
-    }
-}

crates/nu-cli/src/commands/evaluate_by.rs

@@ -1,72 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use crate::utils::data_processing::{evaluate, fetch};
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::{SpannedItem, Tagged};
-use nu_value_ext::ValueExt;
-
-pub struct EvaluateBy;
-
-#[derive(Deserialize)]
-pub struct EvaluateByArgs {
-    evaluate_with: Option<Tagged<String>>,
-}
-
-impl WholeStreamCommand for EvaluateBy {
-    fn name(&self) -> &str {
-        "evaluate-by"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("evaluate-by").named(
-            "evaluate_with",
-            SyntaxShape::String,
-            "the name of the column to evaluate by",
-            Some('w'),
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Creates a new table with the data from the tables rows evaluated by the column given."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, evaluate_by)?.run()
-    }
-}
-
-pub fn evaluate_by(
-    EvaluateByArgs { evaluate_with }: EvaluateByArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let values: Vec<Value> = input.values.collect().await;
-
-        if values.is_empty() {
-            yield Err(ShellError::labeled_error(
-                    "Expected table from pipeline",
-                    "requires a table input",
-                    name
-                ))
-        } else {
-
-            let evaluate_with = if let Some(evaluator) = evaluate_with {
-                Some(evaluator.item().clone())
-            } else {
-                None
-            };
-
-            match evaluate(&values[0], evaluate_with, name) {
-                Ok(evaluated) => yield ReturnSuccess::value(evaluated),
-                Err(err) => yield Err(err)
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/exit.rs

@@ -1,39 +0,0 @@
-use crate::commands::command::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CommandAction, ReturnSuccess, Signature};
-
-pub struct Exit;
-
-impl WholeStreamCommand for Exit {
-    fn name(&self) -> &str {
-        "exit"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("exit").switch("now", "exit out of the shell immediately", Some('n'))
-    }
-
-    fn usage(&self) -> &str {
-        "Exit the current shell (or all shells)"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        exit(args, registry)
-    }
-}
-
-pub fn exit(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-
-    if args.call_info.args.has("now") {
-        Ok(vec![Ok(ReturnSuccess::Action(CommandAction::Exit))].into())
-    } else {
-        Ok(vec![Ok(ReturnSuccess::Action(CommandAction::LeaveShell))].into())
-    }
-}

crates/nu-cli/src/commands/first.rs

@@ -1,54 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Signature, SyntaxShape};
-use nu_source::Tagged;
-
-pub struct First;
-
-#[derive(Deserialize)]
-pub struct FirstArgs {
-    rows: Option<Tagged<usize>>,
-}
-
-impl WholeStreamCommand for First {
-    fn name(&self) -> &str {
-        "first"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("first").optional(
-            "rows",
-            SyntaxShape::Int,
-            "starting from the front, the number of rows to return",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Show only the first number of rows."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, first)?.run()
-    }
-}
-
-fn first(
-    FirstArgs { rows }: FirstArgs,
-    context: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let rows_desired = if let Some(quantity) = rows {
-        *quantity
-    } else {
-        1
-    };
-
-    Ok(OutputStream::from_input(
-        context.input.values.take(rows_desired),
-    ))
-}

crates/nu-cli/src/commands/format.rs

@@ -1,157 +0,0 @@
-use crate::commands::PerItemCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{
-    CallInfo, ColumnPath, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value,
-};
-use nu_source::Tagged;
-use nu_value_ext::{as_column_path, get_data_by_column_path};
-use std::borrow::Borrow;
-
-use nom::{
-    bytes::complete::{tag, take_while},
-    IResult,
-};
-
-pub struct Format;
-
-impl PerItemCommand for Format {
-    fn name(&self) -> &str {
-        "format"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("format").required(
-            "pattern",
-            SyntaxShape::Any,
-            "the pattern to output. Eg) \"{foo}: {bar}\"",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Format columns into a string using a simple pattern."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        _raw_args: &RawCommandArgs,
-        value: Value,
-    ) -> Result<OutputStream, ShellError> {
-        //let value_tag = value.tag();
-        let pattern = call_info.args.expect_nth(0)?;
-        let pattern_tag = pattern.tag.clone();
-        let pattern = pattern.as_string()?;
-
-        let format_pattern = format(&pattern).map_err(|_| {
-            ShellError::labeled_error(
-                "Could not create format pattern",
-                "could not create format pattern",
-                &pattern_tag,
-            )
-        })?;
-        let commands = format_pattern.1;
-
-        let output = match value {
-            value
-            @
-            Value {
-                value: UntaggedValue::Row(_),
-                ..
-            } => {
-                let mut output = String::new();
-
-                for command in &commands {
-                    match command {
-                        FormatCommand::Text(s) => {
-                            output.push_str(s);
-                        }
-                        FormatCommand::Column(c) => {
-                            let key = to_column_path(&c, &pattern_tag)?;
-
-                            let fetcher = get_data_by_column_path(
-                                &value,
-                                &key,
-                                Box::new(move |(_, _, error)| error),
-                            );
-
-                            if let Ok(c) = fetcher {
-                                output
-                                    .push_str(&value::format_leaf(c.borrow()).plain_string(100_000))
-                            }
-                            // That column doesn't match, so don't emit anything
-                        }
-                    }
-                }
-
-                output
-            }
-            _ => String::new(),
-        };
-
-        Ok(futures::stream::iter(vec![ReturnSuccess::value(
-            UntaggedValue::string(output).into_untagged_value(),
-        )])
-        .to_output_stream())
-    }
-}
-
-#[derive(Debug)]
-enum FormatCommand {
-    Text(String),
-    Column(String),
-}
-
-fn format(input: &str) -> IResult<&str, Vec<FormatCommand>> {
-    let mut output = vec![];
-
-    let mut loop_input = input;
-    loop {
-        let (input, before) = take_while(|c| c != '{')(loop_input)?;
-        if !before.is_empty() {
-            output.push(FormatCommand::Text(before.to_string()));
-        }
-        if input != "" {
-            // Look for column as we're now at one
-            let (input, _) = tag("{")(input)?;
-            let (input, column) = take_while(|c| c != '}')(input)?;
-            let (input, _) = tag("}")(input)?;
-
-            output.push(FormatCommand::Column(column.to_string()));
-            loop_input = input;
-        } else {
-            loop_input = input;
-        }
-        if loop_input == "" {
-            break;
-        }
-    }
-
-    Ok((loop_input, output))
-}
-
-fn to_column_path(
-    path_members: &str,
-    tag: impl Into<Tag>,
-) -> Result<Tagged<ColumnPath>, ShellError> {
-    let tag = tag.into();
-
-    as_column_path(
-        &UntaggedValue::Table(
-            path_members
-                .split('.')
-                .map(|x| {
-                    let member = match x.parse::<u64>() {
-                        Ok(v) => UntaggedValue::int(v),
-                        Err(_) => UntaggedValue::string(x),
-                    };
-
-                    member.into_value(&tag)
-                })
-                .collect(),
-        )
-        .into_value(&tag),
-    )
-}

crates/nu-cli/src/commands/from_delimited_data.rs

@@ -1,76 +0,0 @@
-use crate::prelude::*;
-use csv::ReaderBuilder;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, TaggedDictBuilder, UntaggedValue, Value};
-
-fn from_delimited_string_to_value(
-    s: String,
-    headerless: bool,
-    separator: char,
-    tag: impl Into<Tag>,
-) -> Result<Value, csv::Error> {
-    let mut reader = ReaderBuilder::new()
-        .has_headers(!headerless)
-        .delimiter(separator as u8)
-        .from_reader(s.as_bytes());
-    let tag = tag.into();
-
-    let headers = if headerless {
-        (1..=reader.headers()?.len())
-            .map(|i| format!("Column{}", i))
-            .collect::<Vec<String>>()
-    } else {
-        reader.headers()?.iter().map(String::from).collect()
-    };
-
-    let mut rows = vec![];
-    for row in reader.records() {
-        let mut tagged_row = TaggedDictBuilder::new(&tag);
-        for (value, header) in row?.iter().zip(headers.iter()) {
-            tagged_row.insert_value(
-                header,
-                UntaggedValue::Primitive(Primitive::String(String::from(value))).into_value(&tag),
-            )
-        }
-        rows.push(tagged_row.into_value());
-    }
-
-    Ok(UntaggedValue::Table(rows).into_value(&tag))
-}
-
-pub fn from_delimited_data(
-    headerless: bool,
-    sep: char,
-    format_name: &'static str,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let name_tag = name;
-
-    let stream = async_stream! {
-        let concat_string = input.collect_string(name_tag.clone()).await?;
-
-        match from_delimited_string_to_value(concat_string.item, headerless, sep, name_tag.clone()) {
-            Ok(x) => match x {
-                Value { value: UntaggedValue::Table(list), .. } => {
-                    for l in list {
-                        yield ReturnSuccess::value(l);
-                    }
-                }
-                x => yield ReturnSuccess::value(x),
-            },
-            Err(_) => {
-                let line_one = format!("Could not parse as {}", format_name);
-                let line_two = format!("input cannot be parsed as {}", format_name);
-                yield Err(ShellError::labeled_error_with_secondary(
-                    line_one,
-                    line_two,
-                    name_tag.clone(),
-                    "value originates from here",
-                    concat_string.tag,
-                ))
-            } ,
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/from_ini.rs

@@ -1,96 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, TaggedDictBuilder, UntaggedValue, Value};
-use std::collections::HashMap;
-
-pub struct FromINI;
-
-impl WholeStreamCommand for FromINI {
-    fn name(&self) -> &str {
-        "from-ini"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("from-ini")
-    }
-
-    fn usage(&self) -> &str {
-        "Parse text as .ini and create table"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        from_ini(args, registry)
-    }
-}
-
-fn convert_ini_second_to_nu_value(v: &HashMap<String, String>, tag: impl Into<Tag>) -> Value {
-    let mut second = TaggedDictBuilder::new(tag);
-
-    for (key, value) in v.iter() {
-        second.insert_untagged(key.clone(), Primitive::String(value.clone()));
-    }
-
-    second.into_value()
-}
-
-fn convert_ini_top_to_nu_value(
-    v: &HashMap<String, HashMap<String, String>>,
-    tag: impl Into<Tag>,
-) -> Value {
-    let tag = tag.into();
-    let mut top_level = TaggedDictBuilder::new(tag.clone());
-
-    for (key, value) in v.iter() {
-        top_level.insert_value(
-            key.clone(),
-            convert_ini_second_to_nu_value(value, tag.clone()),
-        );
-    }
-
-    top_level.into_value()
-}
-
-pub fn from_ini_string_to_value(
-    s: String,
-    tag: impl Into<Tag>,
-) -> Result<Value, serde_ini::de::Error> {
-    let v: HashMap<String, HashMap<String, String>> = serde_ini::from_str(&s)?;
-    Ok(convert_ini_top_to_nu_value(&v, tag))
-}
-
-fn from_ini(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-    let tag = args.name_tag();
-    let input = args.input;
-
-    let stream = async_stream! {
-        let concat_string = input.collect_string(tag.clone()).await?;
-
-        match from_ini_string_to_value(concat_string.item, tag.clone()) {
-            Ok(x) => match x {
-                Value { value: UntaggedValue::Table(list), .. } => {
-                    for l in list {
-                        yield ReturnSuccess::value(l);
-                    }
-                }
-                x => yield ReturnSuccess::value(x),
-            },
-            Err(_) => {
-                yield Err(ShellError::labeled_error_with_secondary(
-                    "Could not parse as INI",
-                    "input cannot be parsed as INI",
-                    &tag,
-                    "value originates from here",
-                    concat_string.tag,
-                ))
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/from_json.rs

@@ -1,133 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, TaggedDictBuilder, UntaggedValue, Value};
-
-pub struct FromJSON;
-
-#[derive(Deserialize)]
-pub struct FromJSONArgs {
-    objects: bool,
-}
-
-impl WholeStreamCommand for FromJSON {
-    fn name(&self) -> &str {
-        "from-json"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("from-json").switch(
-            "objects",
-            "treat each line as a separate value",
-            Some('o'),
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Parse text as .json and create table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, from_json)?.run()
-    }
-}
-
-fn convert_json_value_to_nu_value(v: &serde_hjson::Value, tag: impl Into<Tag>) -> Value {
-    let tag = tag.into();
-
-    match v {
-        serde_hjson::Value::Null => UntaggedValue::Primitive(Primitive::Nothing).into_value(&tag),
-        serde_hjson::Value::Bool(b) => UntaggedValue::boolean(*b).into_value(&tag),
-        serde_hjson::Value::F64(n) => UntaggedValue::decimal(*n).into_value(&tag),
-        serde_hjson::Value::U64(n) => UntaggedValue::int(*n).into_value(&tag),
-        serde_hjson::Value::I64(n) => UntaggedValue::int(*n).into_value(&tag),
-        serde_hjson::Value::String(s) => {
-            UntaggedValue::Primitive(Primitive::String(String::from(s))).into_value(&tag)
-        }
-        serde_hjson::Value::Array(a) => UntaggedValue::Table(
-            a.iter()
-                .map(|x| convert_json_value_to_nu_value(x, &tag))
-                .collect(),
-        )
-        .into_value(tag),
-        serde_hjson::Value::Object(o) => {
-            let mut collected = TaggedDictBuilder::new(&tag);
-            for (k, v) in o.iter() {
-                collected.insert_value(k.clone(), convert_json_value_to_nu_value(v, &tag));
-            }
-
-            collected.into_value()
-        }
-    }
-}
-
-pub fn from_json_string_to_value(s: String, tag: impl Into<Tag>) -> serde_hjson::Result<Value> {
-    let v: serde_hjson::Value = serde_hjson::from_str(&s)?;
-    Ok(convert_json_value_to_nu_value(&v, tag))
-}
-
-fn from_json(
-    FromJSONArgs { objects }: FromJSONArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let name_tag = name;
-
-    let stream = async_stream! {
-        let concat_string = input.collect_string(name_tag.clone()).await?;
-
-        if objects {
-            for json_str in concat_string.item.lines() {
-                if json_str.is_empty() {
-                    continue;
-                }
-
-                match from_json_string_to_value(json_str.to_string(), &name_tag) {
-                    Ok(x) =>
-                        yield ReturnSuccess::value(x),
-                    Err(e) => {
-                        let mut message = "Could not parse as JSON (".to_string();
-                        message.push_str(&e.to_string());
-                        message.push_str(")");
-
-                        yield Err(ShellError::labeled_error_with_secondary(
-                            message,
-                            "input cannot be parsed as JSON",
-                            &name_tag,
-                            "value originates from here",
-                            concat_string.tag.clone()))
-                    }
-                }
-            }
-        } else {
-            match from_json_string_to_value(concat_string.item, name_tag.clone()) {
-                Ok(x) =>
-                    match x {
-                        Value { value: UntaggedValue::Table(list), .. } => {
-                            for l in list {
-                                yield ReturnSuccess::value(l);
-                            }
-                        }
-                        x => yield ReturnSuccess::value(x),
-                    }
-                Err(e) => {
-                    let mut message = "Could not parse as JSON (".to_string();
-                    message.push_str(&e.to_string());
-                    message.push_str(")");
-
-                    yield Err(ShellError::labeled_error_with_secondary(
-                        message,
-                        "input cannot be parsed as JSON",
-                        name_tag,
-                        "value originates from here",
-                        concat_string.tag))
-                }
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/from_ods.rs

@@ -1,98 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use crate::TaggedListBuilder;
-use calamine::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, TaggedDictBuilder, UntaggedValue};
-use std::io::Cursor;
-
-pub struct FromODS;
-
-#[derive(Deserialize)]
-pub struct FromODSArgs {
-    headerless: bool,
-}
-
-impl WholeStreamCommand for FromODS {
-    fn name(&self) -> &str {
-        "from-ods"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("from-ods").switch(
-            "headerless",
-            "don't treat the first row as column names",
-            None,
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Parse OpenDocument Spreadsheet(.ods) data and create table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, from_ods)?.run()
-    }
-}
-
-fn from_ods(
-    FromODSArgs {
-        headerless: _headerless,
-    }: FromODSArgs,
-    runnable_context: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let input = runnable_context.input;
-    let tag = runnable_context.name;
-
-    let stream = async_stream! {
-        let bytes = input.collect_binary(tag.clone()).await?;
-        let mut buf: Cursor<Vec<u8>> = Cursor::new(bytes.item);
-        let mut ods = Ods::<_>::new(buf).map_err(|_| ShellError::labeled_error(
-            "Could not load ods file",
-            "could not load ods file",
-            &tag))?;
-
-        let mut dict = TaggedDictBuilder::new(&tag);
-
-        let sheet_names = ods.sheet_names().to_owned();
-
-        for sheet_name in &sheet_names {
-            let mut sheet_output = TaggedListBuilder::new(&tag);
-
-            if let Some(Ok(current_sheet)) = ods.worksheet_range(sheet_name) {
-                for row in current_sheet.rows() {
-                    let mut row_output = TaggedDictBuilder::new(&tag);
-                    for (i, cell) in row.iter().enumerate() {
-                        let value = match cell {
-                            DataType::Empty => UntaggedValue::nothing(),
-                            DataType::String(s) => UntaggedValue::string(s),
-                            DataType::Float(f) => UntaggedValue::decimal(*f),
-                            DataType::Int(i) => UntaggedValue::int(*i),
-                            DataType::Bool(b) => UntaggedValue::boolean(*b),
-                            _ => UntaggedValue::nothing(),
-                        };
-
-                        row_output.insert_untagged(&format!("Column{}", i), value);
-                    }
-
-                    sheet_output.push_untagged(row_output.into_untagged_value());
-                }
-
-                dict.insert_untagged(sheet_name, sheet_output.into_untagged_value());
-            } else {
-                yield Err(ShellError::labeled_error(
-                    "Could not load sheet",
-                    "could not load sheet",
-                    &tag));
-            }
-        }
-
-        yield ReturnSuccess::value(dict.into_value());
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/from_tsv.rs

@@ -1,45 +0,0 @@
-use crate::commands::from_delimited_data::from_delimited_data;
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::Signature;
-
-pub struct FromTSV;
-
-#[derive(Deserialize)]
-pub struct FromTSVArgs {
-    headerless: bool,
-}
-
-impl WholeStreamCommand for FromTSV {
-    fn name(&self) -> &str {
-        "from-tsv"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("from-tsv").switch(
-            "headerless",
-            "don't treat the first row as column names",
-            None,
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Parse text as .tsv and create table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, from_tsv)?.run()
-    }
-}
-
-fn from_tsv(
-    FromTSVArgs { headerless }: FromTSVArgs,
-    runnable_context: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    from_delimited_data(headerless, '\t', "TSV", runnable_context)
-}

crates/nu-cli/src/commands/from_url.rs

@@ -1,63 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, TaggedDictBuilder, UntaggedValue};
-
-pub struct FromURL;
-
-impl WholeStreamCommand for FromURL {
-    fn name(&self) -> &str {
-        "from-url"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("from-url")
-    }
-
-    fn usage(&self) -> &str {
-        "Parse url-encoded string as a table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        from_url(args, registry)
-    }
-}
-
-fn from_url(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-    let tag = args.name_tag();
-    let input = args.input;
-
-    let stream = async_stream! {
-        let concat_string = input.collect_string(tag.clone()).await?;
-
-        let result = serde_urlencoded::from_str::<Vec<(String, String)>>(&concat_string.item);
-
-        match result {
-            Ok(result) => {
-                let mut row = TaggedDictBuilder::new(tag);
-
-                for (k,v) in result {
-                    row.insert_untagged(k, UntaggedValue::string(v));
-                }
-
-                yield ReturnSuccess::value(row.into_value());
-            }
-            _ => {
-                yield Err(ShellError::labeled_error_with_secondary(
-                    "String not compatible with url-encoding",
-                    "input not url-encoded",
-                    tag,
-                    "value originates from here",
-                    concat_string.tag,
-                ));
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/from_xlsx.rs

@@ -1,99 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use crate::TaggedListBuilder;
-use calamine::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, TaggedDictBuilder, UntaggedValue};
-use std::io::Cursor;
-
-pub struct FromXLSX;
-
-#[derive(Deserialize)]
-pub struct FromXLSXArgs {
-    headerless: bool,
-}
-
-impl WholeStreamCommand for FromXLSX {
-    fn name(&self) -> &str {
-        "from-xlsx"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("from-xlsx").switch(
-            "headerless",
-            "don't treat the first row as column names",
-            None,
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Parse binary Excel(.xlsx) data and create table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, from_xlsx)?.run()
-    }
-}
-
-fn from_xlsx(
-    FromXLSXArgs {
-        headerless: _headerless,
-    }: FromXLSXArgs,
-    runnable_context: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let input = runnable_context.input;
-    let tag = runnable_context.name;
-
-    let stream = async_stream! {
-        let value = input.collect_binary(tag.clone()).await?;
-
-        let mut buf: Cursor<Vec<u8>> = Cursor::new(value.item);
-        let mut xls = Xlsx::<_>::new(buf).map_err(|_| {
-            ShellError::labeled_error("Could not load xlsx file", "could not load xlsx file", &tag)
-        })?;
-
-        let mut dict = TaggedDictBuilder::new(&tag);
-
-        let sheet_names = xls.sheet_names().to_owned();
-
-        for sheet_name in &sheet_names {
-            let mut sheet_output = TaggedListBuilder::new(&tag);
-
-            if let Some(Ok(current_sheet)) = xls.worksheet_range(sheet_name) {
-                for row in current_sheet.rows() {
-                    let mut row_output = TaggedDictBuilder::new(&tag);
-                    for (i, cell) in row.iter().enumerate() {
-                        let value = match cell {
-                            DataType::Empty => UntaggedValue::nothing(),
-                            DataType::String(s) => UntaggedValue::string(s),
-                            DataType::Float(f) => UntaggedValue::decimal(*f),
-                            DataType::Int(i) => UntaggedValue::int(*i),
-                            DataType::Bool(b) => UntaggedValue::boolean(*b),
-                            _ => UntaggedValue::nothing(),
-                        };
-
-                        row_output.insert_untagged(&format!("Column{}", i), value);
-                    }
-
-                    sheet_output.push_untagged(row_output.into_untagged_value());
-                }
-
-                dict.insert_untagged(sheet_name, sheet_output.into_untagged_value());
-            } else {
-                yield Err(ShellError::labeled_error(
-                    "Could not load sheet",
-                    "could not load sheet",
-                    &tag,
-                ));
-            }
-        }
-
-        yield ReturnSuccess::value(dict.into_value());
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/from_yaml.rs

@@ -1,151 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, TaggedDictBuilder, UntaggedValue, Value};
-
-pub struct FromYAML;
-
-impl WholeStreamCommand for FromYAML {
-    fn name(&self) -> &str {
-        "from-yaml"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("from-yaml")
-    }
-
-    fn usage(&self) -> &str {
-        "Parse text as .yaml/.yml and create table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        from_yaml(args, registry)
-    }
-}
-
-pub struct FromYML;
-
-impl WholeStreamCommand for FromYML {
-    fn name(&self) -> &str {
-        "from-yml"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("from-yml")
-    }
-
-    fn usage(&self) -> &str {
-        "Parse text as .yaml/.yml and create table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        from_yaml(args, registry)
-    }
-}
-
-fn convert_yaml_value_to_nu_value(
-    v: &serde_yaml::Value,
-    tag: impl Into<Tag>,
-) -> Result<Value, ShellError> {
-    let tag = tag.into();
-
-    Ok(match v {
-        serde_yaml::Value::Bool(b) => UntaggedValue::boolean(*b).into_value(tag),
-        serde_yaml::Value::Number(n) if n.is_i64() => {
-            UntaggedValue::int(n.as_i64().ok_or_else(|| {
-                ShellError::labeled_error(
-                    "Expected a compatible number",
-                    "expected a compatible number",
-                    &tag,
-                )
-            })?)
-            .into_value(tag)
-        }
-        serde_yaml::Value::Number(n) if n.is_f64() => {
-            UntaggedValue::decimal(n.as_f64().ok_or_else(|| {
-                ShellError::labeled_error(
-                    "Expected a compatible number",
-                    "expected a compatible number",
-                    &tag,
-                )
-            })?)
-            .into_value(tag)
-        }
-        serde_yaml::Value::String(s) => UntaggedValue::string(s).into_value(tag),
-        serde_yaml::Value::Sequence(a) => {
-            let result: Result<Vec<Value>, ShellError> = a
-                .iter()
-                .map(|x| convert_yaml_value_to_nu_value(x, &tag))
-                .collect();
-            UntaggedValue::Table(result?).into_value(tag)
-        }
-        serde_yaml::Value::Mapping(t) => {
-            let mut collected = TaggedDictBuilder::new(&tag);
-
-            for (k, v) in t.iter() {
-                match k {
-                    serde_yaml::Value::String(k) => {
-                        collected.insert_value(k.clone(), convert_yaml_value_to_nu_value(v, &tag)?);
-                    }
-                    _ => unimplemented!("Unknown key type"),
-                }
-            }
-
-            collected.into_value()
-        }
-        serde_yaml::Value::Null => UntaggedValue::Primitive(Primitive::Nothing).into_value(tag),
-        x => unimplemented!("Unsupported yaml case: {:?}", x),
-    })
-}
-
-pub fn from_yaml_string_to_value(s: String, tag: impl Into<Tag>) -> Result<Value, ShellError> {
-    let tag = tag.into();
-    let v: serde_yaml::Value = serde_yaml::from_str(&s).map_err(|x| {
-        ShellError::labeled_error(
-            format!("Could not load yaml: {}", x),
-            "could not load yaml from text",
-            &tag,
-        )
-    })?;
-    Ok(convert_yaml_value_to_nu_value(&v, tag)?)
-}
-
-fn from_yaml(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-    let tag = args.name_tag();
-    let input = args.input;
-
-    let stream = async_stream! {
-        let concat_string = input.collect_string(tag.clone()).await?;
-
-        match from_yaml_string_to_value(concat_string.item, tag.clone()) {
-            Ok(x) => match x {
-                Value { value: UntaggedValue::Table(list), .. } => {
-                    for l in list {
-                        yield ReturnSuccess::value(l);
-                    }
-                }
-                x => yield ReturnSuccess::value(x),
-            },
-            Err(_) => {
-                yield Err(ShellError::labeled_error_with_secondary(
-                    "Could not parse as YAML",
-                    "input cannot be parsed as YAML",
-                    &tag,
-                    "value originates from here",
-                    &concat_string.tag,
-                ))
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/get.rs

@@ -1,238 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use indexmap::set::IndexSet;
-use log::trace;
-use nu_errors::ShellError;
-use nu_protocol::{
-    did_you_mean, ColumnPath, PathMember, ReturnSuccess, ReturnValue, Signature, SyntaxShape,
-    UnspannedPathMember, UntaggedValue, Value,
-};
-use nu_source::span_for_spanned_list;
-use nu_value_ext::get_data_by_column_path;
-
-pub struct Get;
-
-#[derive(Deserialize)]
-pub struct GetArgs {
-    rest: Vec<ColumnPath>,
-}
-
-impl WholeStreamCommand for Get {
-    fn name(&self) -> &str {
-        "get"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("get").rest(
-            SyntaxShape::ColumnPath,
-            "optionally return additional data by path",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Open given cells as text."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, get)?.run()
-    }
-}
-
-pub fn get_column_path(path: &ColumnPath, obj: &Value) -> Result<Value, ShellError> {
-    let fields = path.clone();
-
-    get_data_by_column_path(
-        obj,
-        path,
-        Box::new(move |(obj_source, column_path_tried, error)| {
-            let path_members_span = span_for_spanned_list(fields.members().iter().map(|p| p.span));
-
-            match &obj_source.value {
-                UntaggedValue::Table(rows) => match column_path_tried {
-                    PathMember {
-                        unspanned: UnspannedPathMember::String(column),
-                        ..
-                    } => {
-                        let primary_label = format!("There isn't a column named '{}'", &column);
-
-                        let suggestions: IndexSet<_> = rows
-                            .iter()
-                            .filter_map(|r| did_you_mean(&r, &column_path_tried))
-                            .map(|s| s[0].1.to_owned())
-                            .collect();
-                        let mut existing_columns: IndexSet<_> = IndexSet::default();
-                        let mut names: Vec<String> = vec![];
-
-                        for row in rows {
-                            for field in row.data_descriptors() {
-                                if !existing_columns.contains(&field[..]) {
-                                    existing_columns.insert(field.clone());
-                                    names.push(field);
-                                }
-                            }
-                        }
-
-                        if names.is_empty() {
-                            return ShellError::labeled_error_with_secondary(
-                                "Unknown column",
-                                primary_label,
-                                column_path_tried.span,
-                                "Appears to contain rows. Try indexing instead.",
-                                column_path_tried.span.since(path_members_span),
-                            );
-                        } else {
-                            return ShellError::labeled_error_with_secondary(
-                                "Unknown column",
-                                primary_label,
-                                column_path_tried.span,
-                                format!(
-                                    "Perhaps you meant '{}'? Columns available: {}",
-                                    suggestions
-                                        .iter()
-                                        .map(|x| x.to_owned())
-                                        .collect::<Vec<String>>()
-                                        .join(","),
-                                    names.join(",")
-                                ),
-                                column_path_tried.span.since(path_members_span),
-                            );
-                        };
-                    }
-                    PathMember {
-                        unspanned: UnspannedPathMember::Int(idx),
-                        ..
-                    } => {
-                        let total = rows.len();
-
-                        let secondary_label = if total == 1 {
-                            "The table only has 1 row".to_owned()
-                        } else {
-                            format!("The table only has {} rows (0 to {})", total, total - 1)
-                        };
-
-                        return ShellError::labeled_error_with_secondary(
-                            "Row not found",
-                            format!("There isn't a row indexed at {}", idx),
-                            column_path_tried.span,
-                            secondary_label,
-                            column_path_tried.span.since(path_members_span),
-                        );
-                    }
-                },
-                UntaggedValue::Row(columns) => match column_path_tried {
-                    PathMember {
-                        unspanned: UnspannedPathMember::String(column),
-                        ..
-                    } => {
-                        let primary_label = format!("There isn't a column named '{}'", &column);
-
-                        if let Some(suggestions) = did_you_mean(&obj_source, column_path_tried) {
-                            return ShellError::labeled_error_with_secondary(
-                                "Unknown column",
-                                primary_label,
-                                column_path_tried.span,
-                                format!(
-                                    "Perhaps you meant '{}'? Columns available: {}",
-                                    suggestions[0].1,
-                                    &obj_source.data_descriptors().join(",")
-                                ),
-                                column_path_tried.span.since(path_members_span),
-                            );
-                        }
-                    }
-                    PathMember {
-                        unspanned: UnspannedPathMember::Int(idx),
-                        ..
-                    } => {
-                        return ShellError::labeled_error_with_secondary(
-                            "No rows available",
-                            format!("A row at '{}' can't be indexed.", &idx),
-                            column_path_tried.span,
-                            format!(
-                                "Appears to contain columns. Columns available: {}",
-                                columns.keys().join(",")
-                            ),
-                            column_path_tried.span.since(path_members_span),
-                        )
-                    }
-                },
-                _ => {}
-            }
-
-            if let Some(suggestions) = did_you_mean(&obj_source, column_path_tried) {
-                return ShellError::labeled_error(
-                    "Unknown column",
-                    format!("did you mean '{}'?", suggestions[0].1),
-                    column_path_tried.span.since(path_members_span),
-                );
-            }
-
-            error
-        }),
-    )
-}
-
-pub fn get(
-    GetArgs { rest: mut fields }: GetArgs,
-    RunnableContext { mut input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    if fields.is_empty() {
-        let stream = async_stream! {
-            let mut vec = input.drain_vec().await;
-
-            let descs = nu_protocol::merge_descriptors(&vec);
-            for desc in descs {
-                yield ReturnSuccess::value(desc);
-            }
-        };
-
-        let stream: BoxStream<'static, ReturnValue> = stream.boxed();
-
-        Ok(stream.to_output_stream())
-    } else {
-        let member = fields.remove(0);
-        trace!("get {:?} {:?}", member, fields);
-        let stream = input
-            .values
-            .map(move |item| {
-                let mut result = VecDeque::new();
-
-                let member = vec![member.clone()];
-
-                let column_paths = vec![&member, &fields]
-                    .into_iter()
-                    .flatten()
-                    .collect::<Vec<&ColumnPath>>();
-
-                for path in column_paths {
-                    let res = get_column_path(&path, &item);
-
-                    match res {
-                        Ok(got) => match got {
-                            Value {
-                                value: UntaggedValue::Table(rows),
-                                ..
-                            } => {
-                                for item in rows {
-                                    result.push_back(ReturnSuccess::value(item.clone()));
-                                }
-                            }
-                            other => result.push_back(ReturnSuccess::value(other.clone())),
-                        },
-                        Err(reason) => result.push_back(ReturnSuccess::value(
-                            UntaggedValue::Error(reason).into_untagged_value(),
-                        )),
-                    }
-                }
-
-                futures::stream::iter(result)
-            })
-            .flatten();
-
-        Ok(stream.to_output_stream())
-    }
-}

crates/nu-cli/src/commands/group_by.rs

@@ -1,223 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, SyntaxShape, TaggedDictBuilder, UntaggedValue, Value};
-use nu_source::Tagged;
-use nu_value_ext::get_data_by_key;
-
-pub struct GroupBy;
-
-#[derive(Deserialize)]
-pub struct GroupByArgs {
-    column_name: Tagged<String>,
-}
-
-impl WholeStreamCommand for GroupBy {
-    fn name(&self) -> &str {
-        "group-by"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("group-by").required(
-            "column_name",
-            SyntaxShape::String,
-            "the name of the column to group by",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Creates a new table with the data from the table rows grouped by the column given."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, group_by)?.run()
-    }
-}
-
-pub fn group_by(
-    GroupByArgs { column_name }: GroupByArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let values: Vec<Value> = input.values.collect().await;
-
-        if values.is_empty() {
-            yield Err(ShellError::labeled_error(
-                    "Expected table from pipeline",
-                    "requires a table input",
-                    column_name.span()
-                ))
-        } else {
-            match group(&column_name, values, name) {
-                Ok(grouped) => yield ReturnSuccess::value(grouped),
-                Err(err) => yield Err(err)
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}
-
-pub fn group(
-    column_name: &Tagged<String>,
-    values: Vec<Value>,
-    tag: impl Into<Tag>,
-) -> Result<Value, ShellError> {
-    let tag = tag.into();
-
-    let mut groups: indexmap::IndexMap<String, Vec<Value>> = indexmap::IndexMap::new();
-
-    for value in values {
-        let group_key = get_data_by_key(&value, column_name.borrow_spanned());
-
-        if let Some(group_key) = group_key {
-            let group_key = group_key.as_string()?.to_string();
-            let group = groups.entry(group_key).or_insert(vec![]);
-            group.push(value);
-        } else {
-            let possibilities = value.data_descriptors();
-
-            let mut possible_matches: Vec<_> = possibilities
-                .iter()
-                .map(|x| (natural::distance::levenshtein_distance(x, column_name), x))
-                .collect();
-
-            possible_matches.sort();
-
-            if !possible_matches.is_empty() {
-                return Err(ShellError::labeled_error(
-                    "Unknown column",
-                    format!("did you mean '{}'?", possible_matches[0].1),
-                    column_name.tag(),
-                ));
-            } else {
-                return Err(ShellError::labeled_error(
-                    "Unknown column",
-                    "row does not contain this column",
-                    column_name.tag(),
-                ));
-            }
-        }
-    }
-
-    let mut out = TaggedDictBuilder::new(&tag);
-
-    for (k, v) in groups.iter() {
-        out.insert_untagged(k, UntaggedValue::table(v));
-    }
-
-    Ok(out.into_value())
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::commands::group_by::group;
-    use indexmap::IndexMap;
-    use nu_errors::ShellError;
-    use nu_protocol::{UntaggedValue, Value};
-    use nu_source::*;
-
-    fn string(input: impl Into<String>) -> Value {
-        UntaggedValue::string(input.into()).into_untagged_value()
-    }
-
-    fn row(entries: IndexMap<String, Value>) -> Value {
-        UntaggedValue::row(entries).into_untagged_value()
-    }
-
-    fn table(list: &[Value]) -> Value {
-        UntaggedValue::table(list).into_untagged_value()
-    }
-
-    fn nu_releases_commiters() -> Vec<Value> {
-        vec![
-            row(
-                indexmap! {"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("August 23-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("August 23-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("October 10-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("Sept 24-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("October 10-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("Sept 24-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("October 10-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("Sept 24-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("August 23-2019")},
-            ),
-        ]
-    }
-
-    #[test]
-    fn groups_table_by_date_column() -> Result<(), ShellError> {
-        let for_key = String::from("date").tagged_unknown();
-
-        assert_eq!(
-            group(&for_key, nu_releases_commiters(), Tag::unknown())?,
-            row(indexmap! {
-                "August 23-2019".into() =>  table(&[
-                    row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("August 23-2019")}),
-                    row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("August 23-2019")}),
-                    row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("August 23-2019")})
-                ]),
-                "October 10-2019".into() =>  table(&[
-                    row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("October 10-2019")}),
-                    row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("October 10-2019")}),
-                    row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("October 10-2019")})
-                ]),
-                "Sept 24-2019".into() =>  table(&[
-                    row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("Sept 24-2019")}),
-                    row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("Sept 24-2019")}),
-                    row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("Sept 24-2019")})
-                ]),
-            })
-        );
-
-        Ok(())
-    }
-
-    #[test]
-    fn groups_table_by_country_column() -> Result<(), ShellError> {
-        let for_key = String::from("country").tagged_unknown();
-
-        assert_eq!(
-            group(&for_key, nu_releases_commiters(), Tag::unknown())?,
-            row(indexmap! {
-                "EC".into() =>  table(&[
-                    row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("August 23-2019")}),
-                    row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("Sept 24-2019")}),
-                    row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("October 10-2019")})
-                ]),
-                "NZ".into() =>  table(&[
-                    row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("August 23-2019")}),
-                    row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("October 10-2019")}),
-                    row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("Sept 24-2019")})
-                ]),
-                "US".into() =>  table(&[
-                    row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("October 10-2019")}),
-                    row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("Sept 24-2019")}),
-                    row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("August 23-2019")}),
-                ]),
-            })
-        );
-
-        Ok(())
-    }
-}

crates/nu-cli/src/commands/help.rs

@@ -1,242 +0,0 @@
-use crate::commands::PerItemCommand;
-use crate::data::command_dict;
-
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{
-    CallInfo, NamedType, PositionalType, Primitive, ReturnSuccess, Signature, SyntaxShape,
-    TaggedDictBuilder, UntaggedValue, Value,
-};
-use nu_source::SpannedItem;
-use nu_value_ext::get_data_by_key;
-
-pub struct Help;
-
-impl PerItemCommand for Help {
-    fn name(&self) -> &str {
-        "help"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("help").rest(SyntaxShape::Any, "the name of command(s) to get help on")
-    }
-
-    fn usage(&self) -> &str {
-        "Display help information about commands."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        registry: &CommandRegistry,
-        _raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        let tag = &call_info.name_tag;
-
-        match call_info.args.nth(0) {
-            Some(Value {
-                value: UntaggedValue::Primitive(Primitive::String(document)),
-                tag,
-            }) => {
-                let mut help = VecDeque::new();
-                if document == "commands" {
-                    let mut sorted_names = registry.names();
-                    sorted_names.sort();
-                    for cmd in sorted_names {
-                        let mut short_desc = TaggedDictBuilder::new(tag.clone());
-                        let value = command_dict(
-                            registry.get_command(&cmd).ok_or_else(|| {
-                                ShellError::labeled_error(
-                                    format!("Could not load {}", cmd),
-                                    "could not load command",
-                                    tag,
-                                )
-                            })?,
-                            tag.clone(),
-                        );
-
-                        short_desc.insert_untagged("name", cmd);
-                        short_desc.insert_untagged(
-                            "description",
-                            get_data_by_key(&value, "usage".spanned_unknown())
-                                .ok_or_else(|| {
-                                    ShellError::labeled_error(
-                                        "Expected a usage key",
-                                        "expected a 'usage' key",
-                                        &value.tag,
-                                    )
-                                })?
-                                .as_string()?,
-                        );
-
-                        help.push_back(ReturnSuccess::value(short_desc.into_value()));
-                    }
-                } else if let Some(command) = registry.get_command(document) {
-                    return Ok(
-                        get_help(&command.name(), &command.usage(), command.signature()).into(),
-                    );
-                }
-                let help = futures::stream::iter(help);
-                Ok(help.to_output_stream())
-            }
-            _ => {
-                let msg = r#"Welcome to Nushell.
-
-Here are some tips to help you get started.
-  * help commands - list all available commands
-  * help <command name> - display help about a particular command
-
-Nushell works on the idea of a "pipeline". Pipelines are commands connected with the '|' character. Each stage 
-in the pipeline works together to load, parse, and display information to you.
-
-[Examples]
-
-List the files in the current directory, sorted by size:
-    ls | sort-by size
-
-Get information about the current system:
-    sys | get host
-
-Get the processes on your system actively using CPU:
-    ps | where cpu > 0
-
-You can also learn more at https://www.nushell.sh/book/"#;
-
-                let output_stream = futures::stream::iter(vec![ReturnSuccess::value(
-                    UntaggedValue::string(msg).into_value(tag),
-                )]);
-
-                Ok(output_stream.to_output_stream())
-            }
-        }
-    }
-}
-
-pub(crate) fn get_help(
-    cmd_name: &str,
-    cmd_usage: &str,
-    cmd_sig: Signature,
-) -> impl Into<OutputStream> {
-    let mut help = VecDeque::new();
-    let mut long_desc = String::new();
-
-    long_desc.push_str(&cmd_usage);
-    long_desc.push_str("\n");
-
-    let signature = cmd_sig;
-
-    let mut one_liner = String::new();
-    one_liner.push_str(&signature.name);
-    one_liner.push_str(" ");
-
-    for positional in &signature.positional {
-        match &positional.0 {
-            PositionalType::Mandatory(name, _m) => {
-                one_liner.push_str(&format!("<{}> ", name));
-            }
-            PositionalType::Optional(name, _o) => {
-                one_liner.push_str(&format!("({}) ", name));
-            }
-        }
-    }
-
-    if signature.rest_positional.is_some() {
-        one_liner.push_str(" ...args");
-    }
-
-    if !signature.named.is_empty() {
-        one_liner.push_str("{flags} ");
-    }
-
-    long_desc.push_str(&format!("\nUsage:\n  > {}\n", one_liner));
-
-    if !signature.positional.is_empty() || signature.rest_positional.is_some() {
-        long_desc.push_str("\nparameters:\n");
-        for positional in signature.positional {
-            match positional.0 {
-                PositionalType::Mandatory(name, _m) => {
-                    long_desc.push_str(&format!("  <{}> {}\n", name, positional.1));
-                }
-                PositionalType::Optional(name, _o) => {
-                    long_desc.push_str(&format!("  ({}) {}\n", name, positional.1));
-                }
-            }
-        }
-
-        if let Some(rest_positional) = signature.rest_positional {
-            long_desc.push_str(&format!("  ...args: {}\n", rest_positional.1));
-        }
-    }
-    if !signature.named.is_empty() {
-        long_desc.push_str("\nflags:\n");
-        for (flag, ty) in signature.named {
-            let msg = match ty.0 {
-                NamedType::Switch(s) => {
-                    if let Some(c) = s {
-                        format!(
-                            "  -{}, --{}{} {}\n",
-                            c,
-                            flag,
-                            if !ty.1.is_empty() { ":" } else { "" },
-                            ty.1
-                        )
-                    } else {
-                        format!(
-                            "  --{}{} {}\n",
-                            flag,
-                            if !ty.1.is_empty() { ":" } else { "" },
-                            ty.1
-                        )
-                    }
-                }
-                NamedType::Mandatory(s, m) => {
-                    if let Some(c) = s {
-                        format!(
-                            "  -{}, --{} <{}> (required parameter){} {}\n",
-                            c,
-                            flag,
-                            m.display(),
-                            if !ty.1.is_empty() { ":" } else { "" },
-                            ty.1
-                        )
-                    } else {
-                        format!(
-                            "  --{} <{}> (required parameter){} {}\n",
-                            flag,
-                            m.display(),
-                            if !ty.1.is_empty() { ":" } else { "" },
-                            ty.1
-                        )
-                    }
-                }
-                NamedType::Optional(s, o) => {
-                    if let Some(c) = s {
-                        format!(
-                            "  -{}, --{} <{}>{} {}\n",
-                            c,
-                            flag,
-                            o.display(),
-                            if !ty.1.is_empty() { ":" } else { "" },
-                            ty.1
-                        )
-                    } else {
-                        format!(
-                            "  --{} <{}>{} {}\n",
-                            flag,
-                            o.display(),
-                            if !ty.1.is_empty() { ":" } else { "" },
-                            ty.1
-                        )
-                    }
-                }
-            };
-            long_desc.push_str(&msg);
-        }
-    }
-
-    help.push_back(ReturnSuccess::value(
-        UntaggedValue::string(long_desc).into_value(Tag::from((0, cmd_name.len(), None))),
-    ));
-    help
-}

crates/nu-cli/src/commands/histogram.rs

@@ -1,160 +0,0 @@
-use crate::commands::group_by::group;
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use crate::utils::data_processing::{columns_sorted, evaluate, map_max, reduce, t_sort};
-use nu_errors::ShellError;
-use nu_protocol::{
-    Primitive, ReturnSuccess, Signature, SyntaxShape, TaggedDictBuilder, UntaggedValue, Value,
-};
-use nu_source::Tagged;
-use num_traits::{ToPrimitive, Zero};
-
-pub struct Histogram;
-
-#[derive(Deserialize)]
-pub struct HistogramArgs {
-    column_name: Tagged<String>,
-    rest: Vec<Tagged<String>>,
-}
-
-impl WholeStreamCommand for Histogram {
-    fn name(&self) -> &str {
-        "histogram"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("histogram")
-            .required(
-                "column_name",
-                SyntaxShape::String,
-                "the name of the column to graph by",
-            )
-            .rest(
-                SyntaxShape::Member,
-                "column name to give the histogram's frequency column",
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Creates a new table with a histogram based on the column name passed in."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, histogram)?.run()
-    }
-}
-
-pub fn histogram(
-    HistogramArgs { column_name, rest }: HistogramArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let values: Vec<Value> = input.values.collect().await;
-
-        let Tagged { item: group_by, .. } = column_name.clone();
-
-        let groups = group(&column_name, values, &name)?;
-        let group_labels = columns_sorted(Some(group_by.clone()), &groups, &name);
-        let sorted = t_sort(Some(group_by.clone()), None, &groups, &name)?;
-        let evaled = evaluate(&sorted, None, &name)?;
-        let reduced = reduce(&evaled, None, &name)?;
-        let maxima = map_max(&reduced, None, &name)?;
-        let percents = percentages(&reduced, maxima, &name)?;
-
-        match percents {
-            Value {
-                value: UntaggedValue::Table(datasets),
-                ..
-            } => {
-
-                let mut idx = 0;
-
-                let column_names_supplied: Vec<_> = rest.iter().map(|f| f.item.clone()).collect();
-
-                let frequency_column_name = if column_names_supplied.is_empty() {
-                    "frequency".to_string()
-                } else {
-                    column_names_supplied[0].clone()
-                };
-
-                let column = (*column_name).clone();
-
-                if let Value { value: UntaggedValue::Table(start), .. } = datasets.get(0).ok_or_else(|| ShellError::labeled_error("Unable to load dataset", "unabled to load dataset", &name))? {
-                    for percentage in start.iter() {
-
-                        let mut fact = TaggedDictBuilder::new(&name);
-                        let value: Tagged<String> = group_labels.get(idx).ok_or_else(|| ShellError::labeled_error("Unable to load group labels", "unabled to load group labels", &name))?.clone();
-                        fact.insert_value(&column, UntaggedValue::string(value.item).into_value(value.tag));
-
-                        if let Value { value: UntaggedValue::Primitive(Primitive::Int(ref num)), ref tag } = percentage.clone() {
-                            let string = std::iter::repeat("*").take(num.to_i32().ok_or_else(|| ShellError::labeled_error("Expected a number", "expected a number", tag))? as usize).collect::<String>();
-                            fact.insert_untagged(&frequency_column_name, UntaggedValue::string(string));
-                        }
-
-                        idx += 1;
-
-                        yield ReturnSuccess::value(fact.into_value());
-                    }
-                }
-            }
-            _ => {}
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}
-
-fn percentages(values: &Value, max: Value, tag: impl Into<Tag>) -> Result<Value, ShellError> {
-    let tag = tag.into();
-
-    let results: Value = match values {
-        Value {
-            value: UntaggedValue::Table(datasets),
-            ..
-        } => {
-            let datasets: Vec<_> = datasets
-                .iter()
-                .map(|subsets| match subsets {
-                    Value {
-                        value: UntaggedValue::Table(data),
-                        ..
-                    } => {
-                        let data = data
-                            .iter()
-                            .map(|d| match d {
-                                Value {
-                                    value: UntaggedValue::Primitive(Primitive::Int(n)),
-                                    ..
-                                } => {
-                                    let max = match &max {
-                                        Value {
-                                            value: UntaggedValue::Primitive(Primitive::Int(maxima)),
-                                            ..
-                                        } => maxima.clone(),
-                                        _ => Zero::zero(),
-                                    };
-
-                                    let n = (n * 100) / max;
-
-                                    UntaggedValue::int(n).into_value(&tag)
-                                }
-                                _ => UntaggedValue::int(0).into_value(&tag),
-                            })
-                            .collect::<Vec<_>>();
-                        UntaggedValue::Table(data).into_value(&tag)
-                    }
-                    _ => UntaggedValue::Table(vec![]).into_value(&tag),
-                })
-                .collect();
-
-            UntaggedValue::Table(datasets).into_value(&tag)
-        }
-        other => other.clone(),
-    };
-
-    Ok(results)
-}

crates/nu-cli/src/commands/history.rs

@@ -1,49 +0,0 @@
-use crate::cli::History as HistoryFile;
-use crate::commands::PerItemCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, ReturnSuccess, Signature, UntaggedValue, Value};
-use std::fs::File;
-use std::io::{BufRead, BufReader};
-
-pub struct History;
-
-impl PerItemCommand for History {
-    fn name(&self) -> &str {
-        "history"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("history")
-    }
-
-    fn usage(&self) -> &str {
-        "Display command history."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        _raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        let tag = call_info.name_tag.clone();
-
-        let stream = async_stream! {
-            let history_path = HistoryFile::path();
-            let file = File::open(history_path);
-            if let Ok(file) = file {
-                let reader = BufReader::new(file);
-                for line in reader.lines() {
-                    if let Ok(line) = line {
-                        yield ReturnSuccess::value(UntaggedValue::string(line).into_value(tag.clone()));
-                    }
-                }
-            } else {
-                yield Err(ShellError::labeled_error("Could not open history", "history file could not be opened", tag.clone()));
-            }
-        };
-        Ok(stream.to_output_stream())
-    }
-}

crates/nu-cli/src/commands/insert.rs

@@ -1,66 +0,0 @@
-use crate::commands::PerItemCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_value_ext::ValueExt;
-
-pub struct Insert;
-
-impl PerItemCommand for Insert {
-    fn name(&self) -> &str {
-        "insert"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("insert")
-            .required(
-                "column",
-                SyntaxShape::ColumnPath,
-                "the column name to insert",
-            )
-            .required(
-                "value",
-                SyntaxShape::String,
-                "the value to give the cell(s)",
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Edit an existing column to have a new value."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        _raw_args: &RawCommandArgs,
-        value: Value,
-    ) -> Result<OutputStream, ShellError> {
-        let value_tag = value.tag();
-        let field = call_info.args.expect_nth(0)?.as_column_path()?;
-        let replacement = call_info.args.expect_nth(1)?.tagged_unknown();
-
-        let stream = match value {
-            obj
-            @
-            Value {
-                value: UntaggedValue::Row(_),
-                ..
-            } => match obj.insert_data_at_column_path(&field, replacement.item.clone()) {
-                Ok(v) => futures::stream::iter(vec![Ok(ReturnSuccess::Value(v))]),
-                Err(err) => return Err(err),
-            },
-
-            _ => {
-                return Err(ShellError::labeled_error(
-                    "Unrecognized type in stream",
-                    "original value",
-                    value_tag,
-                ))
-            }
-        };
-
-        Ok(stream.to_output_stream())
-    }
-}

crates/nu-cli/src/commands/last.rs

@@ -1,61 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, SyntaxShape, Value};
-use nu_source::Tagged;
-
-pub struct Last;
-
-#[derive(Deserialize)]
-pub struct LastArgs {
-    rows: Option<Tagged<u64>>,
-}
-
-impl WholeStreamCommand for Last {
-    fn name(&self) -> &str {
-        "last"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("last").optional(
-            "rows",
-            SyntaxShape::Number,
-            "starting from the back, the number of rows to return",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Show only the last number of rows."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, last)?.run()
-    }
-}
-
-fn last(LastArgs { rows }: LastArgs, context: RunnableContext) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let v: Vec<_> = context.input.into_vec().await;
-
-        let rows_desired = if let Some(quantity) = rows {
-            *quantity
-        } else {
-         1
-        };
-
-        let count = (rows_desired as usize);
-        if count < v.len() {
-            let k = v.len() - count;
-            for x in v[k..].iter() {
-                let y: Value = x.clone();
-                yield ReturnSuccess::value(y)
-            }
-        }
-    };
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/lines.rs

@@ -1,116 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, UntaggedValue, Value};
-
-pub struct Lines;
-
-impl WholeStreamCommand for Lines {
-    fn name(&self) -> &str {
-        "lines"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("lines")
-    }
-
-    fn usage(&self) -> &str {
-        "Split single string into rows, one per line."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        lines(args, registry)
-    }
-}
-
-fn ends_with_line_ending(st: &str) -> bool {
-    let mut temp = st.to_string();
-    let last = temp.pop();
-    if let Some(c) = last {
-        c == '\n'
-    } else {
-        false
-    }
-}
-
-fn lines(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-    let tag = args.name_tag();
-    let name_span = tag.span;
-    let mut input = args.input;
-
-    let mut leftover = vec![];
-    let mut leftover_string = String::new();
-    let stream = async_stream! {
-        loop {
-            match input.values.next().await {
-                Some(Value { value: UntaggedValue::Primitive(Primitive::String(st)), ..}) => {
-                    let mut st = leftover_string.clone() + &st;
-                    leftover.clear();
-
-                    let mut lines: Vec<String> = st.lines().map(|x| x.to_string()).collect();
-
-                    if !ends_with_line_ending(&st) {
-                        if let Some(last) = lines.pop() {
-                            leftover_string = last;
-                        } else {
-                            leftover_string.clear();
-                        }
-                    } else {
-                        leftover_string.clear();
-                    }
-
-                    let success_lines: Vec<_> = lines.iter().map(|x| ReturnSuccess::value(UntaggedValue::line(x).into_untagged_value())).collect();
-                    yield futures::stream::iter(success_lines)
-                }
-                Some(Value { value: UntaggedValue::Primitive(Primitive::Line(st)), ..}) => {
-                    let mut st = leftover_string.clone() + &st;
-                    leftover.clear();
-
-                    let mut lines: Vec<String> = st.lines().map(|x| x.to_string()).collect();
-                    if !ends_with_line_ending(&st) {
-                        if let Some(last) = lines.pop() {
-                            leftover_string = last;
-                        } else {
-                            leftover_string.clear();
-                        }
-                    } else {
-                        leftover_string.clear();
-                    }
-
-                    let success_lines: Vec<_> = lines.iter().map(|x| ReturnSuccess::value(UntaggedValue::line(x).into_untagged_value())).collect();
-                    yield futures::stream::iter(success_lines)
-                }
-                Some( Value { tag: value_span, ..}) => {
-                    yield futures::stream::iter(vec![Err(ShellError::labeled_error_with_secondary(
-                        "Expected a string from pipeline",
-                        "requires string input",
-                        name_span,
-                        "value originates from here",
-                        value_span,
-                    ))]);
-                }
-                None => {
-                    if !leftover.is_empty() {
-                        let mut st = leftover_string.clone();
-                        if let Ok(extra) = String::from_utf8(leftover) {
-                            st.push_str(&extra);
-                        }
-                        yield futures::stream::iter(vec![ReturnSuccess::value(UntaggedValue::string(st).into_untagged_value())])
-                    }
-                    break;
-                }
-            }
-        }
-        if !leftover_string.is_empty() {
-            yield futures::stream::iter(vec![ReturnSuccess::value(UntaggedValue::string(leftover_string).into_untagged_value())]);
-        }
-    }
-    .flatten();
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/ls.rs

@@ -1,68 +0,0 @@
-use crate::commands::command::RunnablePerItemContext;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, Signature, SyntaxShape, Value};
-use nu_source::Tagged;
-use std::path::PathBuf;
-
-pub struct Ls;
-
-#[derive(Deserialize)]
-pub struct LsArgs {
-    pub path: Option<Tagged<PathBuf>>,
-    pub full: bool,
-    #[serde(rename = "short-names")]
-    pub short_names: bool,
-    #[serde(rename = "with-symlink-targets")]
-    pub with_symlink_targets: bool,
-}
-
-impl PerItemCommand for Ls {
-    fn name(&self) -> &str {
-        "ls"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("ls")
-            .optional(
-                "path",
-                SyntaxShape::Pattern,
-                "a path to get the directory contents from",
-            )
-            .switch(
-                "full",
-                "list all available columns for each entry",
-                Some('f'),
-            )
-            .switch(
-                "short-names",
-                "only print the file names and not the path",
-                Some('s'),
-            )
-            .switch(
-                "with-symlink-targets",
-                "display the paths to the target files that symlinks point to",
-                Some('w'),
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "View the contents of the current or given path."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        call_info
-            .process(&raw_args.shell_manager, raw_args.ctrl_c.clone(), ls)?
-            .run()
-    }
-}
-
-fn ls(args: LsArgs, context: &RunnablePerItemContext) -> Result<OutputStream, ShellError> {
-    context.shell_manager.ls(args, context)
-}

crates/nu-cli/src/commands/map_max_by.rs

@@ -1,74 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::data::value;
-use crate::prelude::*;
-use crate::utils::data_processing::map_max;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::Tagged;
-use num_traits::cast::ToPrimitive;
-
-pub struct MapMaxBy;
-
-#[derive(Deserialize)]
-pub struct MapMaxByArgs {
-    column_name: Option<Tagged<String>>,
-}
-
-impl WholeStreamCommand for MapMaxBy {
-    fn name(&self) -> &str {
-        "map-max-by"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("map-max-by").named(
-            "column_name",
-            SyntaxShape::String,
-            "the name of the column to map-max the table's rows",
-            Some('c'),
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Creates a new table with the data from the tables rows maxed by the column given."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, map_max_by)?.run()
-    }
-}
-
-pub fn map_max_by(
-    MapMaxByArgs { column_name }: MapMaxByArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let values: Vec<Value> = input.values.collect().await;
-
-
-        if values.is_empty() {
-            yield Err(ShellError::labeled_error(
-                    "Expected table from pipeline",
-                    "requires a table input",
-                    name
-                ))
-        } else {
-
-            let map_by_column = if let Some(column_to_map) = column_name {
-                Some(column_to_map.item().clone())
-            } else {
-                None
-            };
-
-            match map_max(&values[0], map_by_column, name) {
-                Ok(table_maxed) => yield ReturnSuccess::value(table_maxed),
-                Err(err) => yield Err(err)
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/mkdir.rs

@@ -1,45 +0,0 @@
-use crate::commands::command::RunnablePerItemContext;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, Signature, SyntaxShape, Value};
-use nu_source::Tagged;
-use std::path::PathBuf;
-
-pub struct Mkdir;
-
-#[derive(Deserialize)]
-pub struct MkdirArgs {
-    pub rest: Vec<Tagged<PathBuf>>,
-}
-
-impl PerItemCommand for Mkdir {
-    fn name(&self) -> &str {
-        "mkdir"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("mkdir").rest(SyntaxShape::Path, "the name(s) of the path(s) to create")
-    }
-
-    fn usage(&self) -> &str {
-        "Make directories, creates intermediary directories as required."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        call_info
-            .process(&raw_args.shell_manager, raw_args.ctrl_c.clone(), mkdir)?
-            .run()
-    }
-}
-
-fn mkdir(args: MkdirArgs, context: &RunnablePerItemContext) -> Result<OutputStream, ShellError> {
-    let shell_manager = context.shell_manager.clone();
-    shell_manager.mkdir(args, context)
-}

crates/nu-cli/src/commands/mv.rs

@@ -1,56 +0,0 @@
-use crate::commands::command::RunnablePerItemContext;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, Signature, SyntaxShape, Value};
-use nu_source::Tagged;
-use std::path::PathBuf;
-
-pub struct Move;
-
-#[derive(Deserialize)]
-pub struct MoveArgs {
-    pub src: Tagged<PathBuf>,
-    pub dst: Tagged<PathBuf>,
-}
-
-impl PerItemCommand for Move {
-    fn name(&self) -> &str {
-        "mv"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("mv")
-            .required(
-                "source",
-                SyntaxShape::Pattern,
-                "the location to move files/directories from",
-            )
-            .required(
-                "destination",
-                SyntaxShape::Path,
-                "the location to move files/directories to",
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Move files or directories."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        call_info
-            .process(&raw_args.shell_manager, raw_args.ctrl_c.clone(), mv)?
-            .run()
-    }
-}
-
-fn mv(args: MoveArgs, context: &RunnablePerItemContext) -> Result<OutputStream, ShellError> {
-    let shell_manager = context.shell_manager.clone();
-    shell_manager.mv(args, context)
-}

crates/nu-cli/src/commands/next.rs

@@ -1,32 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CommandAction, ReturnSuccess, Signature};
-
-pub struct Next;
-
-impl WholeStreamCommand for Next {
-    fn name(&self) -> &str {
-        "n"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("n")
-    }
-
-    fn usage(&self) -> &str {
-        "Go to next shell."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        next(args, registry)
-    }
-}
-
-fn next(_args: CommandArgs, _registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    Ok(vec![Ok(ReturnSuccess::Action(CommandAction::NextShell))].into())
-}

crates/nu-cli/src/commands/nth.rs

@@ -1,76 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, SyntaxShape};
-use nu_source::Tagged;
-
-#[derive(Deserialize)]
-struct NthArgs {
-    row_number: Tagged<u64>,
-    rest: Vec<Tagged<u64>>,
-}
-
-pub struct Nth;
-
-impl WholeStreamCommand for Nth {
-    fn name(&self) -> &str {
-        "nth"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("nth")
-            .required(
-                "row number",
-                SyntaxShape::Any,
-                "the number of the row to return",
-            )
-            .rest(SyntaxShape::Any, "Optionally return more rows")
-    }
-
-    fn usage(&self) -> &str {
-        "Return only the selected rows"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, nth)?.run()
-    }
-}
-
-fn nth(
-    NthArgs {
-        row_number,
-        rest: and_rows,
-    }: NthArgs,
-    RunnableContext { input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = input
-        .values
-        .enumerate()
-        .map(move |(idx, item)| {
-            let row_number = vec![row_number.clone()];
-
-            let row_numbers = vec![&row_number, &and_rows]
-                .into_iter()
-                .flatten()
-                .collect::<Vec<&Tagged<u64>>>();
-
-            let mut result = VecDeque::new();
-
-            if row_numbers
-                .iter()
-                .any(|requested| requested.item == idx as u64)
-            {
-                result.push_back(ReturnSuccess::value(item));
-            }
-
-            futures::stream::iter(result)
-        })
-        .flatten();
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/open.rs

@@ -1,254 +0,0 @@
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{
-    CallInfo, CommandAction, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value,
-};
-use nu_source::{AnchorLocation, Span};
-use std::path::{Path, PathBuf};
-
-pub struct Open;
-
-impl PerItemCommand for Open {
-    fn name(&self) -> &str {
-        "open"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build(self.name())
-            .required(
-                "path",
-                SyntaxShape::Path,
-                "the file path to load values from",
-            )
-            .switch(
-                "raw",
-                "load content as a string instead of a table",
-                Some('r'),
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Load a file into a cell, convert to table if possible (avoid by appending '--raw')"
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        run(call_info, raw_args)
-    }
-}
-
-fn run(call_info: &CallInfo, raw_args: &RawCommandArgs) -> Result<OutputStream, ShellError> {
-    let shell_manager = &raw_args.shell_manager;
-    let cwd = PathBuf::from(shell_manager.path());
-    let full_path = cwd;
-
-    let path = call_info.args.nth(0).ok_or_else(|| {
-        ShellError::labeled_error(
-            "No file or directory specified",
-            "for command",
-            &call_info.name_tag,
-        )
-    })?;
-
-    let path_buf = path.as_path()?;
-    let path_str = path_buf.display().to_string();
-    let path_span = path.tag.span;
-    let has_raw = call_info.args.has("raw");
-
-    let stream = async_stream! {
-
-        let result = fetch(&full_path, &path_str, path_span).await;
-
-        if let Err(e) = result {
-            yield Err(e);
-            return;
-        }
-        let (file_extension, contents, contents_tag) = result?;
-
-        let file_extension = if has_raw {
-            None
-        } else {
-            // If the extension could not be determined via mimetype, try to use the path
-            // extension. Some file types do not declare their mimetypes (such as bson files).
-            file_extension.or(path_str.split('.').last().map(String::from))
-        };
-
-        let tagged_contents = contents.into_value(&contents_tag);
-
-        if let Some(extension) = file_extension {
-            yield Ok(ReturnSuccess::Action(CommandAction::AutoConvert(tagged_contents, extension)))
-        } else {
-            yield ReturnSuccess::value(tagged_contents);
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}
-
-pub async fn fetch(
-    cwd: &PathBuf,
-    location: &str,
-    span: Span,
-) -> Result<(Option<String>, UntaggedValue, Tag), ShellError> {
-    let mut cwd = cwd.clone();
-
-    cwd.push(Path::new(location));
-    if let Ok(cwd) = dunce::canonicalize(cwd) {
-        match std::fs::read(&cwd) {
-            Ok(bytes) => match std::str::from_utf8(&bytes) {
-                Ok(s) => Ok((
-                    cwd.extension()
-                        .map(|name| name.to_string_lossy().to_string()),
-                    UntaggedValue::string(s),
-                    Tag {
-                        span,
-                        anchor: Some(AnchorLocation::File(cwd.to_string_lossy().to_string())),
-                    },
-                )),
-                Err(_) => {
-                    //Non utf8 data.
-                    match (bytes.get(0), bytes.get(1)) {
-                        (Some(x), Some(y)) if *x == 0xff && *y == 0xfe => {
-                            // Possibly UTF-16 little endian
-                            let utf16 = read_le_u16(&bytes[2..]);
-
-                            if let Some(utf16) = utf16 {
-                                match std::string::String::from_utf16(&utf16) {
-                                    Ok(s) => Ok((
-                                        cwd.extension()
-                                            .map(|name| name.to_string_lossy().to_string()),
-                                        UntaggedValue::string(s),
-                                        Tag {
-                                            span,
-                                            anchor: Some(AnchorLocation::File(
-                                                cwd.to_string_lossy().to_string(),
-                                            )),
-                                        },
-                                    )),
-                                    Err(_) => Ok((
-                                        None,
-                                        UntaggedValue::binary(bytes),
-                                        Tag {
-                                            span,
-                                            anchor: Some(AnchorLocation::File(
-                                                cwd.to_string_lossy().to_string(),
-                                            )),
-                                        },
-                                    )),
-                                }
-                            } else {
-                                Ok((
-                                    None,
-                                    UntaggedValue::binary(bytes),
-                                    Tag {
-                                        span,
-                                        anchor: Some(AnchorLocation::File(
-                                            cwd.to_string_lossy().to_string(),
-                                        )),
-                                    },
-                                ))
-                            }
-                        }
-                        (Some(x), Some(y)) if *x == 0xfe && *y == 0xff => {
-                            // Possibly UTF-16 big endian
-                            let utf16 = read_be_u16(&bytes[2..]);
-
-                            if let Some(utf16) = utf16 {
-                                match std::string::String::from_utf16(&utf16) {
-                                    Ok(s) => Ok((
-                                        cwd.extension()
-                                            .map(|name| name.to_string_lossy().to_string()),
-                                        UntaggedValue::string(s),
-                                        Tag {
-                                            span,
-                                            anchor: Some(AnchorLocation::File(
-                                                cwd.to_string_lossy().to_string(),
-                                            )),
-                                        },
-                                    )),
-                                    Err(_) => Ok((
-                                        None,
-                                        UntaggedValue::binary(bytes),
-                                        Tag {
-                                            span,
-                                            anchor: Some(AnchorLocation::File(
-                                                cwd.to_string_lossy().to_string(),
-                                            )),
-                                        },
-                                    )),
-                                }
-                            } else {
-                                Ok((
-                                    None,
-                                    UntaggedValue::binary(bytes),
-                                    Tag {
-                                        span,
-                                        anchor: Some(AnchorLocation::File(
-                                            cwd.to_string_lossy().to_string(),
-                                        )),
-                                    },
-                                ))
-                            }
-                        }
-                        _ => Ok((
-                            None,
-                            UntaggedValue::binary(bytes),
-                            Tag {
-                                span,
-                                anchor: Some(AnchorLocation::File(
-                                    cwd.to_string_lossy().to_string(),
-                                )),
-                            },
-                        )),
-                    }
-                }
-            },
-            Err(_) => Err(ShellError::labeled_error(
-                "File could not be opened",
-                "file not found",
-                span,
-            )),
-        }
-    } else {
-        Err(ShellError::labeled_error(
-            "File could not be opened",
-            "file not found",
-            span,
-        ))
-    }
-}
-
-fn read_le_u16(input: &[u8]) -> Option<Vec<u16>> {
-    if input.len() % 2 != 0 || input.len() < 2 {
-        None
-    } else {
-        let mut result = vec![];
-        let mut pos = 0;
-        while pos < input.len() {
-            result.push(u16::from_le_bytes([input[pos], input[pos + 1]]));
-            pos += 2;
-        }
-
-        Some(result)
-    }
-}
-
-fn read_be_u16(input: &[u8]) -> Option<Vec<u16>> {
-    if input.len() % 2 != 0 || input.len() < 2 {
-        None
-    } else {
-        let mut result = vec![];
-        let mut pos = 0;
-        while pos < input.len() {
-            result.push(u16::from_be_bytes([input[pos], input[pos + 1]]));
-            pos += 2;
-        }
-
-        Some(result)
-    }
-}

crates/nu-cli/src/commands/parse.rs

@@ -1,141 +0,0 @@
-use crate::commands::PerItemCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{
-    CallInfo, ReturnSuccess, Signature, SyntaxShape, TaggedDictBuilder, UntaggedValue, Value,
-};
-
-use nom::{
-    bytes::complete::{tag, take_while},
-    IResult,
-};
-use regex::Regex;
-
-#[derive(Debug)]
-enum ParseCommand {
-    Text(String),
-    Column(String),
-}
-
-fn parse(input: &str) -> IResult<&str, Vec<ParseCommand>> {
-    let mut output = vec![];
-
-    let mut loop_input = input;
-    loop {
-        let (input, before) = take_while(|c| c != '{')(loop_input)?;
-        if !before.is_empty() {
-            output.push(ParseCommand::Text(before.to_string()));
-        }
-        if input != "" {
-            // Look for column as we're now at one
-            let (input, _) = tag("{")(input)?;
-            let (input, column) = take_while(|c| c != '}')(input)?;
-            let (input, _) = tag("}")(input)?;
-
-            output.push(ParseCommand::Column(column.to_string()));
-            loop_input = input;
-        } else {
-            loop_input = input;
-        }
-        if loop_input == "" {
-            break;
-        }
-    }
-
-    Ok((loop_input, output))
-}
-
-fn column_names(commands: &[ParseCommand]) -> Vec<String> {
-    let mut output = vec![];
-
-    for command in commands {
-        if let ParseCommand::Column(c) = command {
-            output.push(c.clone());
-        }
-    }
-
-    output
-}
-
-fn build_regex(commands: &[ParseCommand]) -> String {
-    let mut output = String::new();
-
-    for command in commands {
-        match command {
-            ParseCommand::Text(s) => {
-                output.push_str(&s.replace("(", "\\("));
-            }
-            ParseCommand::Column(_) => {
-                output.push_str("(.*)");
-            }
-        }
-    }
-
-    output
-}
-pub struct Parse;
-
-impl PerItemCommand for Parse {
-    fn name(&self) -> &str {
-        "parse"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("parse").required(
-            "pattern",
-            SyntaxShape::Any,
-            "the pattern to match. Eg) \"{foo}: {bar}\"",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Parse columns from string data using a simple pattern."
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        _raw_args: &RawCommandArgs,
-        value: Value,
-    ) -> Result<OutputStream, ShellError> {
-        //let value_tag = value.tag();
-        let pattern = call_info.args.expect_nth(0)?.as_string()?;
-
-        let parse_pattern = parse(&pattern).map_err(|_| {
-            ShellError::labeled_error(
-                "Could not create parse pattern",
-                "could not create parse pattern",
-                &value.tag,
-            )
-        })?;
-        let parse_regex = build_regex(&parse_pattern.1);
-
-        let column_names = column_names(&parse_pattern.1);
-        let regex = Regex::new(&parse_regex).map_err(|_| {
-            ShellError::labeled_error("Could not parse regex", "could not parse regex", &value.tag)
-        })?;
-
-        let output = if let Ok(s) = value.as_string() {
-            let mut results = vec![];
-            for cap in regex.captures_iter(&s) {
-                let mut dict = TaggedDictBuilder::new(value.tag());
-
-                for (idx, column_name) in column_names.iter().enumerate() {
-                    dict.insert_untagged(
-                        column_name,
-                        UntaggedValue::string(&cap[idx + 1].to_string()),
-                    );
-                }
-
-                results.push(ReturnSuccess::value(dict.into_value()));
-            }
-
-            VecDeque::from(results)
-        } else {
-            VecDeque::new()
-        };
-        Ok(output.into())
-    }
-}

crates/nu-cli/src/commands/pick.rs

@@ -1,167 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use futures_util::pin_mut;
-use nu_errors::ShellError;
-use nu_protocol::{
-    ColumnPath, PathMember, Primitive, ReturnSuccess, ReturnValue, Signature, SyntaxShape,
-    TaggedDictBuilder, UnspannedPathMember, UntaggedValue, Value,
-};
-use nu_source::span_for_spanned_list;
-use nu_value_ext::{as_string, get_data_by_column_path};
-
-#[derive(Deserialize)]
-struct PickArgs {
-    rest: Vec<ColumnPath>,
-}
-
-pub struct Pick;
-
-impl WholeStreamCommand for Pick {
-    fn name(&self) -> &str {
-        "pick"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("pick").rest(
-            SyntaxShape::ColumnPath,
-            "the columns to select from the table",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Down-select table to only these columns."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, pick)?.run()
-    }
-}
-
-fn pick(
-    PickArgs { rest: mut fields }: PickArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    if fields.is_empty() {
-        return Err(ShellError::labeled_error(
-            "Pick requires columns to pick",
-            "needs parameter",
-            name,
-        ));
-    }
-
-    let member = fields.remove(0);
-    let member = vec![member];
-
-    let column_paths = vec![&member, &fields]
-        .into_iter()
-        .flatten()
-        .cloned()
-        .collect::<Vec<ColumnPath>>();
-
-    let stream = async_stream! {
-        let values = input.values;
-        pin_mut!(values);
-
-        let mut empty = true;
-        let mut bring_back: indexmap::IndexMap<String, Vec<Value>> = indexmap::IndexMap::new();
-
-        while let Some(value) = values.next().await {
-            for path in &column_paths {
-                let path_members_span = span_for_spanned_list(path.members().iter().map(|p| p.span));
-
-                let fetcher = get_data_by_column_path(&value, &path, Box::new(move |(obj_source, path_member_tried, error)| {
-                    if let PathMember { unspanned: UnspannedPathMember::String(column), .. } = path_member_tried {
-                        return ShellError::labeled_error_with_secondary(
-                        "No data to fetch.",
-                        format!("Couldn't pick column \"{}\"", column),
-                        path_member_tried.span,
-                        format!("How about exploring it with \"get\"? Check the input is appropiate originating from here"),
-                        obj_source.tag.span)
-                    }
-
-                    error
-                }));
-
-
-                let field = path.clone();
-                let key = as_string(&UntaggedValue::Primitive(Primitive::ColumnPath(field.clone())).into_untagged_value())?;
-
-                match fetcher {
-                    Ok(results) => {
-                        match results.value {
-                            UntaggedValue::Table(records) => {
-                                for x in records {
-                                    let mut out = TaggedDictBuilder::new(name.clone());
-                                    out.insert_untagged(&key, x.value.clone());
-                                    let group = bring_back.entry(key.clone()).or_insert(vec![]);
-                                    group.push(out.into_value());
-                                }
-                            },
-                            x => {
-                                let mut out = TaggedDictBuilder::new(name.clone());
-                                out.insert_untagged(&key, x.clone());
-                                let group = bring_back.entry(key.clone()).or_insert(vec![]);
-                                group.push(out.into_value());
-                            }
-
-                        }
-                    }
-                    Err(reason) => {
-                        // At the moment, we can't add switches, named flags
-                        // and the like while already using .rest since it
-                        // breaks the parser.
-                        //
-                        // We allow flexibility for now and skip the error
-                        // if a given column isn't present.
-                        let strict: Option<bool> = None;
-
-                        if strict.is_some() {
-                            yield Err(reason);
-                            return;
-                        }
-
-                        bring_back.entry(key.clone()).or_insert(vec![]);
-                    }
-                }
-            }
-        }
-
-        let mut max = 0;
-
-        if let Some(max_column) = bring_back.values().max() {
-            max = max_column.len();
-        }
-
-        let keys = bring_back.keys().map(|x| x.clone()).collect::<Vec<String>>();
-
-        for mut current in 0..max  {
-            let mut out = TaggedDictBuilder::new(name.clone());
-
-            for k in &keys {
-                let nothing = UntaggedValue::Primitive(Primitive::Nothing).into_untagged_value();
-                let subsets = bring_back.get(k);
-
-                match subsets {
-                    Some(set) => {
-                        match set.get(current) {
-                            Some(row) => out.insert_untagged(k, row.get_data(k).borrow().clone()),
-                            None => out.insert_untagged(k, nothing.clone()),
-                        }
-                    }
-                    None => out.insert_untagged(k, nothing.clone()),
-                }
-            }
-
-            yield ReturnSuccess::value(out.into_value());
-        }
-    };
-
-    let stream: BoxStream<'static, ReturnValue> = stream.boxed();
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/pivot.rs

@@ -1,136 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{
-    merge_descriptors, ReturnSuccess, Signature, SyntaxShape, TaggedDictBuilder, UntaggedValue,
-};
-use nu_source::{SpannedItem, Tagged};
-use nu_value_ext::get_data_by_key;
-
-pub struct Pivot;
-
-#[derive(Deserialize)]
-pub struct PivotArgs {
-    rest: Vec<Tagged<String>>,
-    #[serde(rename(deserialize = "header-row"))]
-    header_row: bool,
-    #[serde(rename(deserialize = "ignore-titles"))]
-    ignore_titles: bool,
-}
-
-impl WholeStreamCommand for Pivot {
-    fn name(&self) -> &str {
-        "pivot"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("pivot")
-            .switch(
-                "header-row",
-                "treat the first row as column names",
-                Some('r'),
-            )
-            .switch(
-                "ignore-titles",
-                "don't pivot the column names into values",
-                Some('i'),
-            )
-            .rest(
-                SyntaxShape::String,
-                "the names to give columns once pivoted",
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Pivots the table contents so rows become columns and columns become rows."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, pivot)?.run()
-    }
-}
-
-pub fn pivot(args: PivotArgs, context: RunnableContext) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let input = context.input.into_vec().await;
-
-        let descs = merge_descriptors(&input);
-
-        let mut headers: Vec<String> = vec![];
-
-        if args.rest.len() > 0 && args.header_row {
-            yield Err(ShellError::labeled_error("Can not provide header names and use header row", "using header row", context.name));
-            return;
-        }
-
-        if args.header_row {
-            for i in input.clone() {
-                if let Some(desc) = descs.get(0) {
-                    match get_data_by_key(&i, desc[..].spanned_unknown()) {
-                        Some(x) => {
-                            if let Ok(s) = x.as_string() {
-                                headers.push(s.to_string());
-                            } else {
-                                yield Err(ShellError::labeled_error("Header row needs string headers", "used non-string headers", context.name));
-                                return;
-                            }
-                        }
-                        _ => {
-                            yield Err(ShellError::labeled_error("Header row is incomplete and can't be used", "using incomplete header row", context.name));
-                            return;
-                        }
-                    }
-                } else {
-                    yield Err(ShellError::labeled_error("Header row is incomplete and can't be used", "using incomplete header row", context.name));
-                    return;
-                }
-            }
-        } else {
-            for i in 0..=input.len() {
-                if let Some(name) = args.rest.get(i) {
-                    headers.push(name.to_string())
-                } else {
-                    headers.push(format!("Column{}", i));
-                }
-            }
-        }
-
-        let descs: Vec<_> = if args.header_row {
-            descs.iter().skip(1).collect()
-        } else {
-            descs.iter().collect()
-        };
-
-        for desc in descs {
-            let mut column_num: usize = 0;
-            let mut dict = TaggedDictBuilder::new(&context.name);
-
-            if !args.ignore_titles && !args.header_row {
-                dict.insert_untagged(headers[column_num].clone(), UntaggedValue::string(desc.clone()));
-                column_num += 1
-            }
-
-            for i in input.clone() {
-                match get_data_by_key(&i, desc[..].spanned_unknown()) {
-                    Some(x) => {
-                        dict.insert_value(headers[column_num].clone(), x.clone());
-                    }
-                    _ => {
-                        dict.insert_untagged(headers[column_num].clone(), UntaggedValue::nothing());
-                    }
-                }
-                column_num += 1;
-            }
-
-            yield ReturnSuccess::value(dict.into_value());
-        }
-
-
-    };
-
-    Ok(OutputStream::new(stream))
-}

crates/nu-cli/src/commands/plugin.rs

@@ -1,374 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use derive_new::new;
-use log::trace;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, ReturnValue, Scope, Signature, UntaggedValue, Value};
-use serde::{self, Deserialize, Serialize};
-use std::io::prelude::*;
-use std::io::BufReader;
-use std::io::Write;
-
-#[derive(Debug, Serialize, Deserialize)]
-pub struct JsonRpc<T> {
-    jsonrpc: String,
-    pub method: String,
-    pub params: T,
-}
-
-impl<T> JsonRpc<T> {
-    pub fn new<U: Into<String>>(method: U, params: T) -> Self {
-        JsonRpc {
-            jsonrpc: "2.0".into(),
-            method: method.into(),
-            params,
-        }
-    }
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-#[serde(tag = "method")]
-#[allow(non_camel_case_types)]
-pub enum NuResult {
-    response {
-        params: Result<VecDeque<ReturnValue>, ShellError>,
-    },
-}
-
-#[derive(new)]
-pub struct PluginCommand {
-    name: String,
-    path: String,
-    config: Signature,
-}
-
-impl WholeStreamCommand for PluginCommand {
-    fn name(&self) -> &str {
-        &self.name
-    }
-
-    fn signature(&self) -> Signature {
-        self.config.clone()
-    }
-
-    fn usage(&self) -> &str {
-        &self.config.usage
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        filter_plugin(self.path.clone(), args, registry)
-    }
-}
-
-pub fn filter_plugin(
-    path: String,
-    args: CommandArgs,
-    registry: &CommandRegistry,
-) -> Result<OutputStream, ShellError> {
-    trace!("filter_plugin :: {}", path);
-
-    let args = args.evaluate_once_with_scope(
-        registry,
-        &Scope::it_value(UntaggedValue::string("$it").into_untagged_value()),
-    )?;
-
-    let mut child = std::process::Command::new(path)
-        .stdin(std::process::Stdio::piped())
-        .stdout(std::process::Stdio::piped())
-        .spawn()
-        .expect("Failed to spawn child process");
-
-    let mut bos: VecDeque<Value> = VecDeque::new();
-    bos.push_back(UntaggedValue::Primitive(Primitive::BeginningOfStream).into_untagged_value());
-    let bos = futures::stream::iter(bos);
-
-    let mut eos: VecDeque<Value> = VecDeque::new();
-    eos.push_back(UntaggedValue::Primitive(Primitive::EndOfStream).into_untagged_value());
-    let eos = futures::stream::iter(eos);
-
-    let call_info = args.call_info.clone();
-
-    trace!("filtering :: {:?}", call_info);
-
-    let stream = bos
-        .chain(args.input.values)
-        .chain(eos)
-        .map(move |v| match v {
-            Value {
-                value: UntaggedValue::Primitive(Primitive::BeginningOfStream),
-                ..
-            } => {
-                let stdin = child.stdin.as_mut().expect("Failed to open stdin");
-                let stdout = child.stdout.as_mut().expect("Failed to open stdout");
-
-                let mut reader = BufReader::new(stdout);
-
-                let request = JsonRpc::new("begin_filter", call_info.clone());
-                let request_raw = serde_json::to_string(&request);
-
-                match request_raw {
-                    Err(_) => {
-                        let mut result = VecDeque::new();
-                        result.push_back(Err(ShellError::labeled_error(
-                            "Could not load json from plugin",
-                            "could not load json from plugin",
-                            &call_info.name_tag,
-                        )));
-                        return result;
-                    }
-                    Ok(request_raw) => match stdin.write(format!("{}\n", request_raw).as_bytes()) {
-                        Ok(_) => {}
-                        Err(err) => {
-                            let mut result = VecDeque::new();
-                            result.push_back(Err(ShellError::unexpected(format!("{}", err))));
-                            return result;
-                        }
-                    },
-                }
-
-                let mut input = String::new();
-                match reader.read_line(&mut input) {
-                    Ok(_) => {
-                        let response = serde_json::from_str::<NuResult>(&input);
-                        match response {
-                            Ok(NuResult::response { params }) => match params {
-                                Ok(params) => params,
-                                Err(e) => {
-                                    let mut result = VecDeque::new();
-                                    result.push_back(ReturnValue::Err(e));
-                                    result
-                                }
-                            },
-                            Err(e) => {
-                                let mut result = VecDeque::new();
-                                result.push_back(Err(ShellError::untagged_runtime_error(format!(
-                                    "Error while processing begin_filter response: {:?} {}",
-                                    e, input
-                                ))));
-                                result
-                            }
-                        }
-                    }
-                    Err(e) => {
-                        let mut result = VecDeque::new();
-                        result.push_back(Err(ShellError::untagged_runtime_error(format!(
-                            "Error while reading begin_filter response: {:?}",
-                            e
-                        ))));
-                        result
-                    }
-                }
-            }
-            Value {
-                value: UntaggedValue::Primitive(Primitive::EndOfStream),
-                ..
-            } => {
-                let stdin = child.stdin.as_mut().expect("Failed to open stdin");
-                let stdout = child.stdout.as_mut().expect("Failed to open stdout");
-
-                let mut reader = BufReader::new(stdout);
-
-                let request: JsonRpc<std::vec::Vec<Value>> = JsonRpc::new("end_filter", vec![]);
-                let request_raw = match serde_json::to_string(&request) {
-                    Ok(req) => req,
-                    Err(err) => {
-                        let mut result = VecDeque::new();
-                        result.push_back(Err(ShellError::unexpected(format!("{}", err))));
-                        return result;
-                    }
-                };
-
-                let _ = stdin.write(format!("{}\n", request_raw).as_bytes()); // TODO: Handle error
-
-                let mut input = String::new();
-                let result = match reader.read_line(&mut input) {
-                    Ok(_) => {
-                        let response = serde_json::from_str::<NuResult>(&input);
-                        match response {
-                            Ok(NuResult::response { params }) => match params {
-                                Ok(params) => {
-                                    let request: JsonRpc<std::vec::Vec<Value>> =
-                                        JsonRpc::new("quit", vec![]);
-                                    let request_raw = serde_json::to_string(&request);
-                                    match request_raw {
-                                        Ok(request_raw) => {
-                                            let _ = stdin.write(format!("{}\n", request_raw).as_bytes()); // TODO: Handle error
-                                        }
-                                        Err(e) => {
-                                            let mut result = VecDeque::new();
-                                            result.push_back(Err(ShellError::untagged_runtime_error(format!(
-                                                "Error while processing begin_filter response: {:?} {}",
-                                                e, input
-                                            ))));
-                                            return result;
-                                        }
-                                    }
-
-                                    params
-                                }
-                                Err(e) => {
-                                    let mut result = VecDeque::new();
-                                    result.push_back(ReturnValue::Err(e));
-                                    result
-                                }
-                            },
-                            Err(e) => {
-                                let mut result = VecDeque::new();
-                                result.push_back(Err(ShellError::untagged_runtime_error(format!(
-                                    "Error while processing end_filter response: {:?} {}",
-                                    e, input
-                                ))));
-                                result
-                            }
-                        }
-                    }
-                    Err(e) => {
-                        let mut result = VecDeque::new();
-                        result.push_back(Err(ShellError::untagged_runtime_error(format!(
-                            "Error while reading end_filter: {:?}",
-                            e
-                        ))));
-                        result
-                    }
-                };
-
-                let _ = child.wait();
-
-                result
-            }
-            _ => {
-                let stdin = child.stdin.as_mut().expect("Failed to open stdin");
-                let stdout = child.stdout.as_mut().expect("Failed to open stdout");
-
-                let mut reader = BufReader::new(stdout);
-
-                let request = JsonRpc::new("filter", v);
-                let request_raw = serde_json::to_string(&request);
-                match request_raw {
-                    Ok(request_raw) => {
-                        let _ = stdin.write(format!("{}\n", request_raw).as_bytes()); // TODO: Handle error
-                    }
-                    Err(e) => {
-                        let mut result = VecDeque::new();
-                        result.push_back(Err(ShellError::untagged_runtime_error(format!(
-                            "Error while processing filter response: {:?}",
-                            e
-                        ))));
-                        return result;
-                    }
-                }
-
-                let mut input = String::new();
-                match reader.read_line(&mut input) {
-                    Ok(_) => {
-                        let response = serde_json::from_str::<NuResult>(&input);
-                        match response {
-                            Ok(NuResult::response { params }) => match params {
-                                Ok(params) => params,
-                                Err(e) => {
-                                    let mut result = VecDeque::new();
-                                    result.push_back(ReturnValue::Err(e));
-                                    result
-                                }
-                            },
-                            Err(e) => {
-                                let mut result = VecDeque::new();
-                                result.push_back(Err(ShellError::untagged_runtime_error(format!(
-                                    "Error while processing filter response: {:?}\n== input ==\n{}",
-                                    e, input
-                                ))));
-                                result
-                            }
-                        }
-                    }
-                    Err(e) => {
-                        let mut result = VecDeque::new();
-                        result.push_back(Err(ShellError::untagged_runtime_error(format!(
-                            "Error while reading filter response: {:?}",
-                            e
-                        ))));
-                        result
-                    }
-                }
-            }
-        })
-        .map(futures::stream::iter) // convert to a stream
-        .flatten();
-
-    Ok(stream.to_output_stream())
-}
-
-#[derive(new)]
-pub struct PluginSink {
-    name: String,
-    path: String,
-    config: Signature,
-}
-
-impl WholeStreamCommand for PluginSink {
-    fn name(&self) -> &str {
-        &self.name
-    }
-
-    fn signature(&self) -> Signature {
-        self.config.clone()
-    }
-
-    fn usage(&self) -> &str {
-        &self.config.usage
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        sink_plugin(self.path.clone(), args, registry)
-    }
-}
-
-pub fn sink_plugin(
-    path: String,
-    args: CommandArgs,
-    registry: &CommandRegistry,
-) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-    let call_info = args.call_info.clone();
-
-    let stream = async_stream! {
-        let input: Vec<Value> = args.input.values.collect().await;
-
-        let request = JsonRpc::new("sink", (call_info.clone(), input));
-        let request_raw = serde_json::to_string(&request);
-        if let Ok(request_raw) = request_raw {
-            if let Ok(mut tmpfile) = tempfile::NamedTempFile::new() {
-                let _ = writeln!(tmpfile, "{}", request_raw);
-                let _ = tmpfile.flush();
-
-                let mut child = std::process::Command::new(path)
-                    .arg(tmpfile.path())
-                    .spawn();
-
-                if let Ok(mut child) = child {
-                    let _ = child.wait();
-
-                    // Needed for async_stream to type check
-                    if false {
-                        yield ReturnSuccess::value(UntaggedValue::nothing().into_untagged_value());
-                    }
-                } else {
-                    yield Err(ShellError::untagged_runtime_error("Could not create process for sink command"));
-                }
-            } else {
-                yield Err(ShellError::untagged_runtime_error("Could not open file to send sink command message"));
-            }
-        } else {
-            yield Err(ShellError::untagged_runtime_error("Could not create message to sink command"));
-        }
-    };
-    Ok(OutputStream::new(stream))
-}

crates/nu-cli/src/commands/prepend.rs

@@ -1,47 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Signature, SyntaxShape, Value};
-
-#[derive(Deserialize)]
-struct PrependArgs {
-    row: Value,
-}
-
-pub struct Prepend;
-
-impl WholeStreamCommand for Prepend {
-    fn name(&self) -> &str {
-        "prepend"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("prepend").required(
-            "row value",
-            SyntaxShape::Any,
-            "the value of the row to prepend to the table",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Prepend the given row to the front of the table"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, prepend)?.run()
-    }
-}
-
-fn prepend(
-    PrependArgs { row }: PrependArgs,
-    RunnableContext { input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let prepend = futures::stream::iter(vec![row]);
-
-    Ok(OutputStream::from_input(prepend.chain(input.values)))
-}

crates/nu-cli/src/commands/prev.rs

@@ -1,33 +0,0 @@
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CommandAction, ReturnSuccess, Signature};
-
-use crate::commands::WholeStreamCommand;
-
-pub struct Previous;
-
-impl WholeStreamCommand for Previous {
-    fn name(&self) -> &str {
-        "p"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("p")
-    }
-
-    fn usage(&self) -> &str {
-        "Go to previous shell."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        previous(args, registry)
-    }
-}
-
-fn previous(_args: CommandArgs, _registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    Ok(vec![Ok(ReturnSuccess::Action(CommandAction::PreviousShell))].into())
-}

crates/nu-cli/src/commands/pwd.rs

@@ -1,34 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::Signature;
-
-pub struct Pwd;
-
-impl WholeStreamCommand for Pwd {
-    fn name(&self) -> &str {
-        "pwd"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("pwd")
-    }
-
-    fn usage(&self) -> &str {
-        "Output the current working directory."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        pwd(args, registry)
-    }
-}
-
-pub fn pwd(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let shell_manager = args.shell_manager.clone();
-    let args = args.evaluate_once(registry)?;
-    shell_manager.pwd(args)
-}

crates/nu-cli/src/commands/range.rs

@@ -1,56 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::deserializer::NumericRange;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Signature, SyntaxShape};
-use nu_source::Tagged;
-
-#[derive(Deserialize)]
-struct RangeArgs {
-    area: Tagged<NumericRange>,
-}
-
-pub struct Range;
-
-impl WholeStreamCommand for Range {
-    fn name(&self) -> &str {
-        "range"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("range").required(
-            "rows ",
-            SyntaxShape::Range,
-            "range of rows to return: Eg) 4..7 (=> from 4 to 7)",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Return only the selected rows"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, range)?.run()
-    }
-}
-
-fn range(
-    RangeArgs { area }: RangeArgs,
-    RunnableContext { input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let range = area.item;
-    let (from, _) = range.from;
-    let (to, _) = range.to;
-
-    let from = *from as usize;
-    let to = *to as usize;
-
-    Ok(OutputStream::from_input(
-        input.values.skip(from).take(to - from + 1),
-    ))
-}

crates/nu-cli/src/commands/reduce_by.rs

@@ -1,72 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use crate::utils::data_processing::reduce;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::Tagged;
-use num_traits::cast::ToPrimitive;
-
-pub struct ReduceBy;
-
-#[derive(Deserialize)]
-pub struct ReduceByArgs {
-    reduce_with: Option<Tagged<String>>,
-}
-
-impl WholeStreamCommand for ReduceBy {
-    fn name(&self) -> &str {
-        "reduce-by"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("reduce-by").named(
-            "reduce_with",
-            SyntaxShape::String,
-            "the command to reduce by with",
-            Some('w'),
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Creates a new table with the data from the tables rows reduced by the command given."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, reduce_by)?.run()
-    }
-}
-
-pub fn reduce_by(
-    ReduceByArgs { reduce_with }: ReduceByArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let values: Vec<Value> = input.values.collect().await;
-
-        if values.is_empty() {
-            yield Err(ShellError::labeled_error(
-                    "Expected table from pipeline",
-                    "requires a table input",
-                    name
-                ))
-        } else {
-
-            let reduce_with = if let Some(reducer) = reduce_with {
-                Some(reducer.item().clone())
-            } else {
-                None
-            };
-
-            match reduce(&values[0], reduce_with, name) {
-                Ok(reduced) => yield ReturnSuccess::value(reduced),
-                Err(err) => yield Err(err)
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/reject.rs

@@ -1,56 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::data::base::reject_fields;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Signature, SyntaxShape};
-use nu_source::Tagged;
-
-#[derive(Deserialize)]
-pub struct RejectArgs {
-    rest: Vec<Tagged<String>>,
-}
-
-pub struct Reject;
-
-impl WholeStreamCommand for Reject {
-    fn name(&self) -> &str {
-        "reject"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("reject").rest(SyntaxShape::Member, "the names of columns to remove")
-    }
-
-    fn usage(&self) -> &str {
-        "Remove the given columns from the table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, reject)?.run()
-    }
-}
-
-fn reject(
-    RejectArgs { rest: fields }: RejectArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    if fields.is_empty() {
-        return Err(ShellError::labeled_error(
-            "Reject requires fields",
-            "needs parameter",
-            name,
-        ));
-    }
-
-    let fields: Vec<_> = fields.iter().map(|f| f.item.clone()).collect();
-
-    let stream = input
-        .values
-        .map(move |item| reject_fields(&item, &fields, &item.tag));
-
-    Ok(stream.from_input_stream())
-}

crates/nu-cli/src/commands/rename.rs

@@ -1,97 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use indexmap::IndexMap;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::Tagged;
-
-pub struct Rename;
-
-#[derive(Deserialize)]
-pub struct Arguments {
-    column_name: Tagged<String>,
-    rest: Vec<Tagged<String>>,
-}
-
-impl WholeStreamCommand for Rename {
-    fn name(&self) -> &str {
-        "rename"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("rename")
-            .required(
-                "column_name",
-                SyntaxShape::String,
-                "the name of the column to rename for",
-            )
-            .rest(
-                SyntaxShape::Member,
-                "Additional column name(s) to rename for",
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Creates a new table with columns renamed."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, rename)?.run()
-    }
-}
-
-pub fn rename(
-    Arguments { column_name, rest }: Arguments,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let mut new_column_names = vec![vec![column_name]];
-    new_column_names.push(rest);
-
-    let new_column_names = new_column_names.into_iter().flatten().collect::<Vec<_>>();
-
-    let stream = input
-        .values
-        .map(move |item| {
-            let mut result = VecDeque::new();
-
-            if let Value {
-                value: UntaggedValue::Row(row),
-                tag,
-            } = item
-            {
-                let mut renamed_row = IndexMap::new();
-
-                for (idx, (key, value)) in row.entries.iter().enumerate() {
-                    let key = if idx < new_column_names.len() {
-                        &new_column_names[idx].item
-                    } else {
-                        key
-                    };
-
-                    renamed_row.insert(key.clone(), value.clone());
-                }
-
-                let out = UntaggedValue::Row(renamed_row.into()).into_value(tag);
-
-                result.push_back(ReturnSuccess::value(out));
-            } else {
-                result.push_back(ReturnSuccess::value(
-                    UntaggedValue::Error(ShellError::labeled_error(
-                        "no column names available",
-                        "can't rename",
-                        &name,
-                    ))
-                    .into_untagged_value(),
-                ));
-            }
-
-            futures::stream::iter(result)
-        })
-        .flatten();
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/reverse.rs

@@ -1,43 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::Signature;
-
-pub struct Reverse;
-
-impl WholeStreamCommand for Reverse {
-    fn name(&self) -> &str {
-        "reverse"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("reverse")
-    }
-
-    fn usage(&self) -> &str {
-        "Reverses the table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        reverse(args, registry)
-    }
-}
-
-fn reverse(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-    let (input, _args) = args.parts();
-
-    let input = input.values.collect::<Vec<_>>();
-
-    let output = input.map(move |mut vec| {
-        vec.reverse();
-        futures::stream::iter(vec)
-    });
-
-    Ok(output.flatten_stream().from_input_stream())
-}

crates/nu-cli/src/commands/rm.rs

@@ -1,54 +0,0 @@
-use crate::commands::command::RunnablePerItemContext;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{CallInfo, Signature, SyntaxShape, Value};
-use nu_source::Tagged;
-use std::path::PathBuf;
-
-pub struct Remove;
-
-#[derive(Deserialize)]
-pub struct RemoveArgs {
-    pub target: Tagged<PathBuf>,
-    pub recursive: Tagged<bool>,
-    pub trash: Tagged<bool>,
-}
-
-impl PerItemCommand for Remove {
-    fn name(&self) -> &str {
-        "rm"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("rm")
-            .required("path", SyntaxShape::Pattern, "the file path to remove")
-            .switch(
-                "trash",
-                "use the platform's recycle bin instead of permanently deleting",
-                Some('t'),
-            )
-            .switch("recursive", "delete subdirectories recursively", Some('r'))
-    }
-
-    fn usage(&self) -> &str {
-        "Remove a file"
-    }
-
-    fn run(
-        &self,
-        call_info: &CallInfo,
-        _registry: &CommandRegistry,
-        raw_args: &RawCommandArgs,
-        _input: Value,
-    ) -> Result<OutputStream, ShellError> {
-        call_info
-            .process(&raw_args.shell_manager, raw_args.ctrl_c.clone(), rm)?
-            .run()
-    }
-}
-
-fn rm(args: RemoveArgs, context: &RunnablePerItemContext) -> Result<OutputStream, ShellError> {
-    let shell_manager = context.shell_manager.clone();
-    shell_manager.rm(args, context)
-}

crates/nu-cli/src/commands/shuffle.rs

@@ -1,69 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, ReturnValue, Signature, SyntaxShape, Value};
-use nu_source::Tagged;
-
-use rand::seq::SliceRandom;
-use rand::thread_rng;
-
-pub struct Shuffle;
-
-#[derive(Deserialize)]
-pub struct Arguments {
-    #[serde(rename = "num")]
-    limit: Option<Tagged<u64>>,
-}
-
-impl WholeStreamCommand for Shuffle {
-    fn name(&self) -> &str {
-        "shuffle"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("shuffle").named(
-            "num",
-            SyntaxShape::Int,
-            "Limit `num` number of rows",
-            Some('n'),
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Shuffle rows randomly."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, shuffle)?.run()
-    }
-}
-
-fn shuffle(
-    Arguments { limit }: Arguments,
-    RunnableContext { input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let mut values: Vec<Value> = input.values.collect().await;
-
-        let out = if let Some(n) = limit {
-            let (shuffled, _) = values.partial_shuffle(&mut thread_rng(), *n as usize);
-            shuffled.to_vec()
-        } else {
-            values.shuffle(&mut thread_rng());
-            values.clone()
-        };
-
-        for val in out.into_iter() {
-            yield ReturnSuccess::value(val);
-        }
-    };
-
-    let stream: BoxStream<'static, ReturnValue> = stream.boxed();
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/size.rs

@@ -1,87 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{ReturnSuccess, Signature, TaggedDictBuilder, UntaggedValue, Value};
-
-pub struct Size;
-
-impl WholeStreamCommand for Size {
-    fn name(&self) -> &str {
-        "size"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("size")
-    }
-
-    fn usage(&self) -> &str {
-        "Gather word count statistics on the text."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        size(args, registry)
-    }
-}
-
-fn size(args: CommandArgs, _registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let input = args.input;
-    let tag = args.call_info.name_tag;
-    let name_span = tag.span;
-
-    Ok(input
-        .values
-        .map(move |v| {
-            if let Ok(s) = v.as_string() {
-                ReturnSuccess::value(count(&s, &v.tag))
-            } else {
-                Err(ShellError::labeled_error_with_secondary(
-                    "Expected a string from pipeline",
-                    "requires string input",
-                    name_span,
-                    "value originates from here",
-                    v.tag.span,
-                ))
-            }
-        })
-        .to_output_stream())
-}
-
-fn count(contents: &str, tag: impl Into<Tag>) -> Value {
-    let mut lines: i64 = 0;
-    let mut words: i64 = 0;
-    let mut chars: i64 = 0;
-    let bytes = contents.len() as i64;
-    let mut end_of_word = true;
-
-    for c in contents.chars() {
-        chars += 1;
-
-        match c {
-            '\n' => {
-                lines += 1;
-                end_of_word = true;
-            }
-            ' ' => end_of_word = true,
-            _ => {
-                if end_of_word {
-                    words += 1;
-                }
-                end_of_word = false;
-            }
-        }
-    }
-
-    let mut dict = TaggedDictBuilder::new(tag);
-    //TODO: add back in name when we have it in the tag
-    //dict.insert("name", value::string(name));
-    dict.insert_untagged("lines", UntaggedValue::int(lines));
-    dict.insert_untagged("words", UntaggedValue::int(words));
-    dict.insert_untagged("chars", UntaggedValue::int(chars));
-    dict.insert_untagged("max length", UntaggedValue::int(bytes));
-
-    dict.into_value()
-}

crates/nu-cli/src/commands/skip.rs

@@ -1,47 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::context::CommandRegistry;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Signature, SyntaxShape};
-use nu_source::Tagged;
-
-pub struct Skip;
-
-#[derive(Deserialize)]
-pub struct SkipArgs {
-    rows: Option<Tagged<usize>>,
-}
-
-impl WholeStreamCommand for Skip {
-    fn name(&self) -> &str {
-        "skip"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("skip").optional("rows", SyntaxShape::Int, "how many rows to skip")
-    }
-
-    fn usage(&self) -> &str {
-        "Skip some number of rows."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, skip)?.run()
-    }
-}
-
-fn skip(SkipArgs { rows }: SkipArgs, context: RunnableContext) -> Result<OutputStream, ShellError> {
-    let rows_desired = if let Some(quantity) = rows {
-        *quantity
-    } else {
-        1
-    };
-
-    Ok(OutputStream::from_input(
-        context.input.values.skip(rows_desired),
-    ))
-}

crates/nu-cli/src/commands/skip_while.rs

@@ -1,60 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use log::trace;
-use nu_errors::ShellError;
-use nu_protocol::{Evaluate, Scope, Signature, SyntaxShape};
-
-pub struct SkipWhile;
-
-#[derive(Deserialize)]
-pub struct SkipWhileArgs {
-    condition: Evaluate,
-}
-
-impl WholeStreamCommand for SkipWhile {
-    fn name(&self) -> &str {
-        "skip-while"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("skip-while")
-            .required(
-                "condition",
-                SyntaxShape::Block,
-                "the condition that must be met to continue skipping",
-            )
-            .filter()
-    }
-
-    fn usage(&self) -> &str {
-        "Skips rows while the condition matches."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, skip_while)?.run()
-    }
-}
-
-pub fn skip_while(
-    SkipWhileArgs { condition }: SkipWhileArgs,
-    RunnableContext { input, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let objects = input.values.skip_while(move |item| {
-        trace!("ITEM = {:?}", item);
-        let result = condition.invoke(&Scope::new(item.clone()));
-        trace!("RESULT = {:?}", result);
-
-        let return_value = match result {
-            Ok(ref v) if v.is_true() => true,
-            _ => false,
-        };
-
-        futures::future::ready(return_value)
-    });
-
-    Ok(objects.from_input_stream())
-}

crates/nu-cli/src/commands/sort_by.rs

@@ -1,69 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Signature, SyntaxShape, UntaggedValue, Value};
-use nu_source::Tagged;
-use nu_value_ext::get_data_by_key;
-
-pub struct SortBy;
-
-#[derive(Deserialize)]
-pub struct SortByArgs {
-    rest: Vec<Tagged<String>>,
-}
-
-impl WholeStreamCommand for SortBy {
-    fn name(&self) -> &str {
-        "sort-by"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("sort-by").rest(SyntaxShape::String, "the column(s) to sort by")
-    }
-
-    fn usage(&self) -> &str {
-        "Sort by the given columns."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, sort_by)?.run()
-    }
-}
-
-fn sort_by(
-    SortByArgs { rest }: SortByArgs,
-    mut context: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    Ok(OutputStream::new(async_stream! {
-        let mut vec = context.input.drain_vec().await;
-
-        if vec.is_empty() {
-            return;
-        }
-
-        match &vec[0] {
-            Value {
-                value: UntaggedValue::Primitive(_),
-                ..
-            } => {
-                vec.sort();
-            },
-            _ => {
-                let calc_key = |item: &Value| {
-                    rest.iter()
-                        .map(|f| get_data_by_key(item, f.borrow_spanned()))
-                        .collect::<Vec<Option<Value>>>()
-                };
-                vec.sort_by_cached_key(calc_key);
-            },
-        };
-
-        for item in vec {
-            yield item.into();
-        }
-    }))
-}

crates/nu-cli/src/commands/split_by.rs

@@ -1,276 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{
-    ReturnSuccess, Signature, SpannedTypeName, SyntaxShape, TaggedDictBuilder, UntaggedValue, Value,
-};
-use nu_source::Tagged;
-
-pub struct SplitBy;
-
-#[derive(Deserialize)]
-pub struct SplitByArgs {
-    column_name: Tagged<String>,
-}
-
-impl WholeStreamCommand for SplitBy {
-    fn name(&self) -> &str {
-        "split-by"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("split-by").required(
-            "column_name",
-            SyntaxShape::String,
-            "the name of the column within the nested table to split by",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Creates a new table with the data from the inner tables split by the column given."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, split_by)?.run()
-    }
-}
-
-pub fn split_by(
-    SplitByArgs { column_name }: SplitByArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = async_stream! {
-        let values: Vec<Value> = input.values.collect().await;
-
-        if values.len() > 1 || values.is_empty() {
-            yield Err(ShellError::labeled_error(
-                    "Expected table from pipeline",
-                    "requires a table input",
-                    column_name.span()
-                ))
-        } else {
-            match split(&column_name, &values[0], name) {
-                Ok(split) => yield ReturnSuccess::value(split),
-                Err(err) => yield Err(err),
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}
-
-pub fn split(
-    column_name: &Tagged<String>,
-    value: &Value,
-    tag: impl Into<Tag>,
-) -> Result<Value, ShellError> {
-    let origin_tag = tag.into();
-
-    let mut splits = indexmap::IndexMap::new();
-
-    match value {
-        Value {
-            value: UntaggedValue::Row(group_sets),
-            ..
-        } => {
-            for (group_key, group_value) in group_sets.entries.iter() {
-                match *group_value {
-                    Value {
-                        value: UntaggedValue::Table(ref dataset),
-                        ..
-                    } => {
-                        let group = crate::commands::group_by::group(
-                            &column_name,
-                            dataset.to_vec(),
-                            &origin_tag,
-                        )?;
-
-                        match group {
-                            Value {
-                                value: UntaggedValue::Row(o),
-                                ..
-                            } => {
-                                for (split_label, subset) in o.entries.into_iter() {
-                                    match subset {
-                                        Value {
-                                            value: UntaggedValue::Table(subset),
-                                            tag,
-                                        } => {
-                                            let s = splits
-                                                .entry(split_label.clone())
-                                                .or_insert(indexmap::IndexMap::new());
-                                            s.insert(
-                                                group_key.clone(),
-                                                UntaggedValue::table(&subset).into_value(tag),
-                                            );
-                                        }
-                                        other => {
-                                            return Err(ShellError::type_error(
-                                                "a table value",
-                                                other.spanned_type_name(),
-                                            ))
-                                        }
-                                    }
-                                }
-                            }
-                            _ => {
-                                return Err(ShellError::type_error(
-                                    "a table value",
-                                    group.spanned_type_name(),
-                                ))
-                            }
-                        }
-                    }
-                    ref other => {
-                        return Err(ShellError::type_error(
-                            "a table value",
-                            other.spanned_type_name(),
-                        ))
-                    }
-                }
-            }
-        }
-        _ => {
-            return Err(ShellError::type_error(
-                "a table value",
-                value.spanned_type_name(),
-            ))
-        }
-    }
-
-    let mut out = TaggedDictBuilder::new(&origin_tag);
-
-    for (k, v) in splits.into_iter() {
-        out.insert_untagged(k, UntaggedValue::row(v));
-    }
-
-    Ok(out.into_value())
-}
-#[cfg(test)]
-mod tests {
-
-    use crate::commands::group_by::group;
-    use crate::commands::split_by::split;
-    use indexmap::IndexMap;
-    use nu_errors::ShellError;
-    use nu_protocol::{UntaggedValue, Value};
-    use nu_source::*;
-
-    fn string(input: impl Into<String>) -> Value {
-        UntaggedValue::string(input.into()).into_untagged_value()
-    }
-
-    fn row(entries: IndexMap<String, Value>) -> Value {
-        UntaggedValue::row(entries).into_untagged_value()
-    }
-
-    fn table(list: &[Value]) -> Value {
-        UntaggedValue::table(list).into_untagged_value()
-    }
-
-    fn nu_releases_grouped_by_date() -> Result<Value, ShellError> {
-        let key = String::from("date").tagged_unknown();
-        group(&key, nu_releases_commiters(), Tag::unknown())
-    }
-
-    fn nu_releases_commiters() -> Vec<Value> {
-        vec![
-            row(
-                indexmap! {"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("August 23-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("August 23-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("October 10-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("Sept 24-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("October 10-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("Sept 24-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("October 10-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("Sept 24-2019")},
-            ),
-            row(
-                indexmap! {"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("August 23-2019")},
-            ),
-        ]
-    }
-
-    #[test]
-    fn splits_inner_tables_by_key() -> Result<(), ShellError> {
-        let for_key = String::from("country").tagged_unknown();
-
-        assert_eq!(
-            split(&for_key, &nu_releases_grouped_by_date()?, Tag::unknown())?,
-            UntaggedValue::row(indexmap! {
-                "EC".into() => row(indexmap! {
-                    "August 23-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("August 23-2019")})
-                    ]),
-                    "Sept 24-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("Sept 24-2019")})
-                    ]),
-                    "October 10-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("October 10-2019")})
-                    ])
-                }),
-                "NZ".into() => row(indexmap! {
-                    "August 23-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("August 23-2019")})
-                    ]),
-                    "Sept 24-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("Sept 24-2019")})
-                    ]),
-                    "October 10-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("JT"), "country".into() => string("NZ"), "date".into() => string("October 10-2019")})
-                    ])
-                }),
-                "US".into() => row(indexmap! {
-                    "August 23-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("August 23-2019")})
-                    ]),
-                    "Sept 24-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("Sept 24-2019")})
-                    ]),
-                    "October 10-2019".into() => table(&[
-                        row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("October 10-2019")})
-                    ])
-                })
-            }).into_untagged_value()
-        );
-
-        Ok(())
-    }
-
-    #[test]
-    fn errors_if_key_within_some_inner_table_is_missing() {
-        let for_key = String::from("country").tagged_unknown();
-
-        let nu_releases = row(indexmap! {
-            "August 23-2019".into() =>  table(&[
-                    row(indexmap!{"name".into() => string("AR"), "country".into() => string("EC"), "date".into() => string("August 23-2019")})
-            ]),
-            "Sept 24-2019".into() =>  table(&[
-                    row(indexmap!{"name".into() => UntaggedValue::string("JT").into_value(Tag::from(Span::new(5,10))), "date".into() => string("Sept 24-2019")})
-            ]),
-            "October 10-2019".into() =>  table(&[
-                    row(indexmap!{"name".into() => string("YK"), "country".into() => string("US"), "date".into() => string("October 10-2019")})
-            ])
-        });
-
-        assert!(split(&for_key, &nu_releases, Tag::from(Span::new(5, 10))).is_err());
-    }
-}

crates/nu-cli/src/commands/split_row.rs

@@ -1,77 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use log::trace;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, SyntaxShape, UntaggedValue};
-use nu_source::Tagged;
-
-#[derive(Deserialize)]
-struct SplitRowArgs {
-    separator: Tagged<String>,
-}
-
-pub struct SplitRow;
-
-impl WholeStreamCommand for SplitRow {
-    fn name(&self) -> &str {
-        "split-row"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("split-row").required(
-            "separator",
-            SyntaxShape::Any,
-            "the character that denotes what separates rows",
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Split row contents over multiple rows via the separator."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, split_row)?.run()
-    }
-}
-
-fn split_row(
-    SplitRowArgs { separator }: SplitRowArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let stream = input
-        .values
-        .map(move |v| {
-            if let Ok(s) = v.as_string() {
-                let splitter = separator.item.replace("\\n", "\n");
-                trace!("splitting with {:?}", splitter);
-                let split_result: Vec<_> = s.split(&splitter).filter(|s| s.trim() != "").collect();
-
-                trace!("split result = {:?}", split_result);
-
-                let mut result = VecDeque::new();
-                for s in split_result {
-                    result.push_back(ReturnSuccess::value(
-                        UntaggedValue::Primitive(Primitive::String(s.into())).into_value(&v.tag),
-                    ));
-                }
-                futures::stream::iter(result)
-            } else {
-                let mut result = VecDeque::new();
-                result.push_back(Err(ShellError::labeled_error_with_secondary(
-                    "Expected a string from pipeline",
-                    "requires string input",
-                    name.span,
-                    "value originates from here",
-                    v.tag.span,
-                )));
-                futures::stream::iter(result)
-            }
-        })
-        .flatten();
-
-    Ok(stream.to_output_stream())
-}

crates/nu-cli/src/commands/t_sort_by.rs

@@ -1,91 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::data::TaggedListBuilder;
-use crate::prelude::*;
-use crate::utils::data_processing::{columns_sorted, t_sort};
-use chrono::{DateTime, NaiveDate, Utc};
-use nu_errors::ShellError;
-use nu_protocol::{
-    Primitive, ReturnSuccess, Signature, SyntaxShape, TaggedDictBuilder, UntaggedValue, Value,
-};
-use nu_source::Tagged;
-use nu_value_ext::get_data_by_key;
-
-pub struct TSortBy;
-
-#[derive(Deserialize)]
-pub struct TSortByArgs {
-    #[serde(rename(deserialize = "show-columns"))]
-    show_columns: bool,
-    group_by: Option<Tagged<String>>,
-    #[allow(unused)]
-    split_by: Option<String>,
-}
-
-impl WholeStreamCommand for TSortBy {
-    fn name(&self) -> &str {
-        "t-sort-by"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("t-sort-by")
-            .switch(
-                "show-columns",
-                "Displays the column names sorted",
-                Some('c'),
-            )
-            .named(
-                "group_by",
-                SyntaxShape::String,
-                "the name of the column to group by",
-                Some('g'),
-            )
-            .named(
-                "split_by",
-                SyntaxShape::String,
-                "the name of the column within the grouped by table to split by",
-                Some('s'),
-            )
-    }
-
-    fn usage(&self) -> &str {
-        "Sort by the given columns."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, t_sort_by)?.run()
-    }
-}
-
-fn t_sort_by(
-    TSortByArgs {
-        show_columns,
-        group_by,
-        ..
-    }: TSortByArgs,
-    RunnableContext { input, name, .. }: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    Ok(OutputStream::new(async_stream! {
-        let values: Vec<Value> = input.values.collect().await;
-
-        let column_grouped_by_name = if let Some(grouped_by) = group_by {
-            Some(grouped_by.item().clone())
-        } else {
-            None
-        };
-
-        if show_columns {
-            for label in columns_sorted(column_grouped_by_name, &values[0], &name).into_iter() {
-                 yield ReturnSuccess::value(UntaggedValue::string(label.item).into_value(label.tag));
-            }
-        } else {
-            match t_sort(column_grouped_by_name, None, &values[0], name) {
-                Ok(sorted) => yield ReturnSuccess::value(sorted),
-                Err(err) => yield Err(err)
-            }
-        }
-    }))
-}

crates/nu-cli/src/commands/table.rs

@@ -1,129 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::format::TableView;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, ReturnSuccess, Signature, SyntaxShape, UntaggedValue, Value};
-use std::time::Instant;
-
-const STREAM_PAGE_SIZE: usize = 1000;
-const STREAM_TIMEOUT_CHECK_INTERVAL: usize = 100;
-
-pub struct Table;
-
-impl WholeStreamCommand for Table {
-    fn name(&self) -> &str {
-        "table"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("table").named(
-            "start_number",
-            SyntaxShape::Number,
-            "row number to start viewing from",
-            Some('n'),
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "View the contents of the pipeline as a table."
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        table(args, registry)
-    }
-}
-
-fn table(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let mut args = args.evaluate_once(registry)?;
-    let mut finished = false;
-
-    let stream = async_stream! {
-        let host = args.host.clone();
-        let mut start_number = match args.get("start_number") {
-            Some(Value { value: UntaggedValue::Primitive(Primitive::Int(i)), .. }) => {
-                if let Some(num) = i.to_usize() {
-                    num
-                } else {
-                    yield Err(ShellError::labeled_error("Expected a row number", "expected a row number", &args.args.call_info.name_tag));
-                    0
-                }
-            }
-            _ => {
-                0
-            }
-        };
-
-        let mut delay_slot = None;
-
-        while !finished {
-            let mut new_input: VecDeque<Value> = VecDeque::new();
-
-            let start_time = Instant::now();
-            for idx in 0..STREAM_PAGE_SIZE {
-                if let Some(val) = delay_slot {
-                    new_input.push_back(val);
-                    delay_slot = None;
-                } else {
-                    match args.input.next().await {
-                        Some(a) => {
-                            if !new_input.is_empty() {
-                                if let Some(descs) = new_input.get(0) {
-                                    let descs = descs.data_descriptors();
-                                    let compare = a.data_descriptors();
-                                    if descs != compare {
-                                        delay_slot = Some(a);
-                                        break;
-                                    } else {
-                                        new_input.push_back(a);
-                                    }
-                                } else {
-                                    new_input.push_back(a);
-                                }
-                            } else {
-                                new_input.push_back(a);
-                            }
-                        }
-                        _ => {
-                            finished = true;
-                            break;
-                        }
-                    }
-
-                    // Check if we've gone over our buffering threshold
-                    if (idx + 1) % STREAM_TIMEOUT_CHECK_INTERVAL == 0 {
-                        let end_time = Instant::now();
-
-                        // If we've been buffering over a second, go ahead and send out what we have so far
-                        if (end_time - start_time).as_secs() >= 1 {
-                            break;
-                        }
-                    }
-                }
-            }
-
-            let input: Vec<Value> = new_input.into();
-
-            if input.len() > 0 {
-                let mut host = host.lock();
-                let view = TableView::from_list(&input, start_number);
-
-                if let Some(view) = view {
-                    handle_unexpected(&mut *host, |host| crate::format::print_view(&view, host));
-                }
-            }
-
-            start_number += input.len();
-        }
-
-        // Needed for async_stream to type check
-        if false {
-            yield ReturnSuccess::value(UntaggedValue::nothing().into_value(Tag::unknown()));
-        }
-    };
-
-    Ok(OutputStream::new(stream))
-}

crates/nu-cli/src/commands/to_csv.rs

@@ -1,72 +0,0 @@
-use crate::commands::to_delimited_data::to_delimited_data;
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::ShellError;
-use nu_protocol::{Primitive, Signature, UntaggedValue, Value};
-
-pub struct ToCSV;
-
-#[derive(Deserialize)]
-pub struct ToCSVArgs {
-    headerless: bool,
-    separator: Option<Value>,
-}
-
-impl WholeStreamCommand for ToCSV {
-    fn name(&self) -> &str {
-        "to-csv"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("to-csv").switch(
-            "headerless",
-            "do not output the columns names as the first row",
-            None,
-        )
-    }
-
-    fn usage(&self) -> &str {
-        "Convert table into .csv text "
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        args.process(registry, to_csv)?.run()
-    }
-}
-
-fn to_csv(
-    ToCSVArgs {
-        separator,
-        headerless,
-    }: ToCSVArgs,
-    runnable_context: RunnableContext,
-) -> Result<OutputStream, ShellError> {
-    let sep = match separator {
-        Some(Value {
-            value: UntaggedValue::Primitive(Primitive::String(s)),
-            tag,
-            ..
-        }) => {
-            if s == r"\t" {
-                '\t'
-            } else {
-                let vec_s: Vec<char> = s.chars().collect();
-                if vec_s.len() != 1 {
-                    return Err(ShellError::labeled_error(
-                        "Expected a single separator char from --separator",
-                        "requires a single character string input",
-                        tag,
-                    ));
-                };
-                vec_s[0]
-            }
-        }
-        _ => ',',
-    };
-
-    to_delimited_data(headerless, sep, "CSV", runnable_context)
-}

crates/nu-cli/src/commands/to_json.rs

@@ -1,177 +0,0 @@
-use crate::commands::WholeStreamCommand;
-use crate::prelude::*;
-use nu_errors::{CoerceInto, ShellError};
-use nu_protocol::{Primitive, ReturnSuccess, Signature, UnspannedPathMember, UntaggedValue, Value};
-
-pub struct ToJSON;
-
-impl WholeStreamCommand for ToJSON {
-    fn name(&self) -> &str {
-        "to-json"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("to-json")
-    }
-
-    fn usage(&self) -> &str {
-        "Convert table into .json text"
-    }
-
-    fn run(
-        &self,
-        args: CommandArgs,
-        registry: &CommandRegistry,
-    ) -> Result<OutputStream, ShellError> {
-        to_json(args, registry)
-    }
-}
-
-pub fn value_to_json_value(v: &Value) -> Result<serde_json::Value, ShellError> {
-    Ok(match &v.value {
-        UntaggedValue::Primitive(Primitive::Boolean(b)) => serde_json::Value::Bool(*b),
-        UntaggedValue::Primitive(Primitive::Bytes(b)) => serde_json::Value::Number(
-            serde_json::Number::from(b.to_u64().expect("What about really big numbers")),
-        ),
-        UntaggedValue::Primitive(Primitive::Duration(secs)) => {
-            serde_json::Value::Number(serde_json::Number::from(*secs))
-        }
-        UntaggedValue::Primitive(Primitive::Date(d)) => serde_json::Value::String(d.to_string()),
-        UntaggedValue::Primitive(Primitive::EndOfStream) => serde_json::Value::Null,
-        UntaggedValue::Primitive(Primitive::BeginningOfStream) => serde_json::Value::Null,
-        UntaggedValue::Primitive(Primitive::Decimal(f)) => {
-            if let Some(f) = f.to_f64() {
-                if let Some(num) = serde_json::Number::from_f64(
-                    f.to_f64().expect("TODO: What about really big decimals?"),
-                ) {
-                    serde_json::Value::Number(num)
-                } else {
-                    return Err(ShellError::labeled_error(
-                        "Could not convert value to decimal number",
-                        "could not convert to decimal",
-                        &v.tag,
-                    ));
-                }
-            } else {
-                return Err(ShellError::labeled_error(
-                    "Could not convert value to decimal number",
-                    "could not convert to decimal",
-                    &v.tag,
-                ));
-            }
-        }
-
-        UntaggedValue::Primitive(Primitive::Int(i)) => {
-            serde_json::Value::Number(serde_json::Number::from(CoerceInto::<i64>::coerce_into(
-                i.tagged(&v.tag),
-                "converting to JSON number",
-            )?))
-        }
-        UntaggedValue::Primitive(Primitive::Nothing) => serde_json::Value::Null,
-        UntaggedValue::Primitive(Primitive::Pattern(s)) => serde_json::Value::String(s.clone()),
-        UntaggedValue::Primitive(Primitive::String(s)) => serde_json::Value::String(s.clone()),
-        UntaggedValue::Primitive(Primitive::Line(s)) => serde_json::Value::String(s.clone()),
-        UntaggedValue::Primitive(Primitive::ColumnPath(path)) => serde_json::Value::Array(
-            path.iter()
-                .map(|x| match &x.unspanned {
-                    UnspannedPathMember::String(string) => {
-                        Ok(serde_json::Value::String(string.clone()))
-                    }
-                    UnspannedPathMember::Int(int) => Ok(serde_json::Value::Number(
-                        serde_json::Number::from(CoerceInto::<i64>::coerce_into(
-                            int.tagged(&v.tag),
-                            "converting to JSON number",
-                        )?),
-                    )),
-                })
-                .collect::<Result<Vec<serde_json::Value>, ShellError>>()?,
-        ),
-        UntaggedValue::Primitive(Primitive::Path(s)) => {
-            serde_json::Value::String(s.display().to_string())
-        }
-
-        UntaggedValue::Table(l) => serde_json::Value::Array(json_list(l)?),
-        UntaggedValue::Error(e) => return Err(e.clone()),
-        UntaggedValue::Block(_) | UntaggedValue::Primitive(Primitive::Range(_)) => {
-            serde_json::Value::Null
-        }
-        UntaggedValue::Primitive(Primitive::Binary(b)) => serde_json::Value::Array(
-            b.iter()
-                .map(|x| {
-                    serde_json::Number::from_f64(*x as f64).ok_or_else(|| {
-                        ShellError::labeled_error(
-                            "Can not convert number from floating point",
-                            "can not convert to number",
-                            &v.tag,
-                        )
-                    })
-                })
-                .collect::<Result<Vec<serde_json::Number>, ShellError>>()?
-                .into_iter()
-                .map(serde_json::Value::Number)
-                .collect(),
-        ),
-        UntaggedValue::Row(o) => {
-            let mut m = serde_json::Map::new();
-            for (k, v) in o.entries.iter() {
-                m.insert(k.clone(), value_to_json_value(v)?);
-            }
-            serde_json::Value::Object(m)
-        }
-    })
-}
-
-fn json_list(input: &[Value]) -> Result<Vec<serde_json::Value>, ShellError> {
-    let mut out = vec![];
-
-    for value in input {
-        out.push(value_to_json_value(value)?);
-    }
-
-    Ok(out)
-}
-
-fn to_json(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
-    let args = args.evaluate_once(registry)?;
-    let name_tag = args.name_tag();
-    let name_span = name_tag.span;
-    let stream = async_stream! {
-        let input: Vec<Value> = args.input.values.collect().await;
-
-        let to_process_input = if input.len() > 1 {
-            let tag = input[0].tag.clone();
-            vec![Value { value: UntaggedValue::Table(input), tag } ]
-        } else if input.len() == 1 {
-            input
-        } else {
-            vec![]
-        };
-
-        for value in to_process_input {
-            match value_to_json_value(&value) {
-                Ok(json_value) => {
-                    let value_span = value.tag.span;
-
-                    match serde_json::to_string(&json_value) {
-                        Ok(x) => yield ReturnSuccess::value(
-                            UntaggedValue::Primitive(Primitive::String(x)).into_value(&name_tag),
-                        ),
-                        _ => yield Err(ShellError::labeled_error_with_secondary(
-                            "Expected a table with JSON-compatible structure.tag() from pipeline",
-                            "requires JSON-compatible input",
-                            name_span,
-                            "originates from here".to_string(),
-                            value_span,
-                        )),
-                    }
-                }
-                _ => yield Err(ShellError::labeled_error(
-                    "Expected a table with JSON-compatible structure from pipeline",
-                    "requires JSON-compatible input",
-                    &name_tag))
-            }
-        }
-    };
-
-    Ok(stream.to_output_stream())
-}