nushell/crates
JT 5b03bca138
Remove autoprinting of loop block values (#8618)
# Description

This removes autoprinting the final value of a loop, much in the same
spirit as not autoprinting values at the end of statements. As we fix
these corner cases, it becomes more consistent that to print to the
screen in a script, you use the `print` command.

This gives a noticeable performance improvement as a bonus.

Before:
```
C:\Source\nushell〉 for x in 1..10 { $x }
1
2
3
4
5
6
7
8
9
10
```
Now:
```
C:\Source\nushell〉 for x in 1..10 { $x }
C:\Source\nushell〉
```

# User-Facing Changes

**BREAKING CHANGE**

Loops like `for`, `loop`, and `while` will no longer automatically print
loop values to the screen.

# Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-26 13:23:54 +13:00
..
nu_plugin_custom_values bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_example bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_formats bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_gstat bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_inc bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_python update nu_plugin_python due to signature changes (#8107) 2023-02-18 13:27:24 +00:00
nu_plugin_query bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-cli Clean up unnecessary macro use (#8607) 2023-03-25 20:17:20 +13:00
nu-cmd-lang Remove autoprinting of loop block values (#8618) 2023-03-26 13:23:54 +13:00
nu-color-config Clean up unnecessary macro use (#8607) 2023-03-25 20:17:20 +13:00
nu-command Remove autoprinting of loop block values (#8618) 2023-03-26 13:23:54 +13:00
nu-engine Move variables to var stack (#8604) 2023-03-25 12:56:45 +13:00
nu-explore Clean up unnecessary macro use (#8607) 2023-03-25 20:17:20 +13:00
nu-glob bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-json bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-parser Change comparison operators to allow nulls (#8617) 2023-03-26 12:10:09 +13:00
nu-path bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-plugin bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-pretty-hex bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-protocol Remove autoprinting of loop block values (#8618) 2023-03-26 13:23:54 +13:00
nu-system bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-table bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-term-grid bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-test-support Remove once_cell dependency from nu-test-support create. (#8568) 2023-03-22 19:36:52 +01:00
nu-utils standard library: bring the tests into the main CI (#8525) 2023-03-25 19:29:08 +01:00
README.md Remove old nushell/merge engine-q 2022-02-07 14:54:06 -05:00

Nushell core libraries and plugins

These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.

Foundational libraries are split into two kinds of crates:

  • Core crates - those crates that work together to build the Nushell language engine
  • Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.

Plugins are likewise also split into two types:

  • Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
  • Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.