Commit Graph

37 Commits

Author SHA1 Message Date
JT
04612809ab
Add try/catch functionality (#7221)
# Description

This adds `try` (with an optional `catch` piece). Much like other
languages, `try` will try to run a block. If the block fails to run
successfully, the optional `catch` block will run if it is available.

# User-Facing Changes

This adds the `try` command.

# 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

# 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.
2022-11-24 17:52:11 +13:00
JT
69b089845c
Add support for while loops (#7101) 2022-11-12 07:21:45 +13:00
JT
13515c5eb0
Limited mutable variables (#7089)
This adds support for (limited) mutable variables. Mutable variables are created with mut much the same way immutable variables are made with let.

Mutable variables allow mutation via the assignment operator (=).

❯ mut x = 100
❯ $x = 200
❯ print $x
200

Mutable variables are limited in that they're only tended to be used in the local code block. Trying to capture a local variable will result in an error:

❯ mut x = 123; {|| $x }
Error: nu::parser::expected_keyword (link)

  × Capture of mutable variable.

The intent of this limitation is to reduce some of the issues with mutable variables in general: namely they make code that's harder to reason about. By reducing the scope that a mutable variable can be used it, we can help create local reasoning about them.

Mutation can occur with fields as well, as in this case:

❯ mut y = {abc: 123}
❯ $y.abc = 456
❯ $y

On a historical note: mutable variables are something that we resisted for quite a long time, leaning as much as we could on the functional style of pipelines and dataflow. That said, we've watched folks struggle to work with reduce as an approximation for patterns that would be trivial to express with local mutation. With that in mind, we're leaning towards the happy path.
2022-11-11 19:51:08 +13:00
WindSoilder
b47bd22b37
Removes export env command (#6468)
* remove export_env command

* remove several export env usage in test code

* adjust hiding relative test case

* fix clippy

* adjust tests

* update tests

* unignore these tests to expose ut failed

* using `use` instead of `overlay use` in some tests

* Revert "using `use` instead of `overlay use` in some tests"

This reverts commit 2ae24b24c3.

* Revert "adjust hiding relative test case"

This reverts commit 4369af6d05.

* Bring back module example

* Revert "update tests"

This reverts commit 6ae94ef513.

* Fix tests

* "Fix" a test

* Remove remaining deprecated env functionality

* Re-enable environment hiding for `hide`

To not break virtualenv since the overlay update is not merged yet

* Fix hiding env in `hide` and ignore some tests

Co-authored-by: kubouch <kubouch@gmail.com>
2022-09-25 19:52:43 +03:00
unrelentingtech
9ee4086dfa
Add a 'commandline' command for manipulating the current buffer (#6492)
* Add a 'commandline' command for manipulating the current buffer

from `executehostcommand` keybindings. Inspired by fish:
https://fishshell.com/docs/current/cmds/commandline.html

* Update to development reedline

Includes nushell/reedline#472

Co-authored-by: sholderbach <sholderbach@users.noreply.github.com>
2022-09-09 15:31:32 -05:00
JT
c52d45cb97
Move from source to source-env (#6277)
* start working on source-env

* WIP

* Get most tests working, still one to go

* Fix file-relative paths; Report parser error

* Fix merge conflicts; Restore source as deprecated

* Tests: Use source-env; Remove redundant tests

* Fmt

* Respect hidden env vars

* Fix file-relative eval for source-env

* Add file-relative eval to "overlay use"

* Use FILE_PWD only in source-env and "overlay use"

* Ignore new tests for now

This will be another issue

* Throw an error if setting FILE_PWD manually

* Fix source-related test failures

* Fix nu-check to respect FILE_PWD

* Fix corrupted spans in source-env shell errors

* Fix up some references to old source

* Remove deprecation message

* Re-introduce deleted tests

Co-authored-by: kubouch <kubouch@gmail.com>
2022-09-01 08:32:56 +12:00
Darren Schroeder
3f1824111d
add the ast command to peek at the internals of nushell (#6423)
* add the ast command to peak at the internals of nushell

* fixed a bug in an example
2022-08-26 14:48:48 -05:00
Jakub Žádník
5a56d47f25
Add export-env command (#6355)
* WIP Start export-env

* Add missing file

* Do not modify the parser

Let's leave that for later

* Enable tests for export-env; Fmt
2022-08-18 23:24:39 +03:00
Jakub Žádník
20528e96c7
Add hide-env to hide environment variables (#6313)
* Add hide-env to hide env vars; Cleanup tests

Also, there were some old unalias tests that I converted to hide.

* Add missing file

* Re-enable hide for env vars

* Fix test

* Rename did you mean error back

It was causing random tests to break
2022-08-13 12:55:06 +03:00
Jakub Žádník
2cffff0c1b
Allow modules to use other modules (#6162)
* Allow private imports inside modules

Can call `use ...` inside modules now.

* Add more tests

* Add a leak test

* Refactor exportables; Prepare for 'export use'

* Fix description

* Implement 'export use' command

This allows re-exporting module's commands and aliases from another
module.

* Add more tests; Fix import pattern list strings

The import pattern strings didn't trim the surrounding quotes.

* Add ignored test
2022-07-29 11:57:10 +03:00
Darren Schroeder
db9b88089e
enable find to be able to highlight some hits (#6086)
* enable find to be able to highlight some hits

* oops, deps in the wrong place
2022-07-20 10:09:33 -05:00
Michael Angerman
bc48b4553c
Move the history and tutor commands out of core_commands (#5813)
* move history and tutor commands from core to misc

* add in the Misc Category for the history and tutor commands
2022-06-16 09:58:38 -07:00
Jakub Žádník
9b99b2f6ac
Overlays (#5375)
* WIP: Start laying overlays

* Rename Overlay->Module; Start adding overlay

* Revamp adding overlay

* Add overlay add tests; Disable debug print

* Fix overlay add; Add overlay remove

* Add overlay remove tests

* Add missing overlay remove file

* Add overlay list command

* (WIP?) Enable overlays for env vars

* Move OverlayFrames to ScopeFrames

* (WIP) Move everything to overlays only

ScopeFrame contains nothing but overlays now

* Fix predecls

* Fix wrong overlay id translation and aliases

* Fix broken env lookup logic

* Remove TODOs

* Add overlay add + remove for environment

* Add a few overlay tests; Fix overlay add name

* Some cleanup; Fix overlay add/remove names

* Clippy

* Fmt

* Remove walls of comments

* List overlays from stack; Add debugging flag

Currently, the engine state ordering is somehow broken.

* Fix (?) overlay list test

* Fix tests on Windows

* Fix activated overlay ordering

* Check for active overlays equality in overlay list

This removes the -p flag: Either both parser and engine will have the
same overlays, or the command will fail.

* Add merging on overlay remove

* Change help message and comment

* Add some remove-merge/discard tests

* (WIP) Track removed overlays properly

* Clippy; Fmt

* Fix getting last overlay; Fix predecls in overlays

* Remove merging; Fix re-add overwriting stuff

Also some error message tweaks.

* Fix overlay error in the engine

* Update variable_completions.rs

* Adds flags and optional arguments to view-source (#5446)

* added flags and optional arguments to view-source

* removed redundant code

* removed redundant code

* fmt

* fix bug in shell_integration (#5450)

* fix bug in shell_integration

* add some comments

* enable cd to work with directory abbreviations (#5452)

* enable cd to work with abbreviations

* add abbreviation example

* fix tests

* make it configurable

* make cd recornize symblic link (#5454)

* implement seq char command to generate single character sequence (#5453)

* add tmp code

* add seq char command

* Add split number flag in `split row` (#5434)

Signed-off-by: Yuheng Su <gipsyh.icu@gmail.com>

* Add two more overlay tests

* Add ModuleId to OverlayFrame

* Fix env conversion accidentally activating overlay

It activated overlay from permanent state prematurely which would
cause `overlay add` to misbehave.

* Remove unused parameter; Add overlay list test

* Remove added traces

* Add overlay commands examples

* Modify TODO

* Fix $nu.scope iteration

* Disallow removing default overlay

* Refactor some parser errors

* Remove last overlay if no argument

* Diversify overlay examples

* Make it possible to update overlay's module

In case the origin module updates, the overlay add loads the new module,
makes it overlay's origin and applies the changes. Before, it was
impossible to update the overlay if the module changed.

Co-authored-by: JT <547158+jntrnr@users.noreply.github.com>
Co-authored-by: pwygab <88221256+merelymyself@users.noreply.github.com>
Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
Co-authored-by: WindSoilder <WindSoilder@outlook.com>
Co-authored-by: Yuheng Su <gipsyh.icu@gmail.com>
2022-05-08 07:39:22 +12:00
JT
f3bb1d11d3
Add export alias and export extern (#4878)
* export alias

* export extern
2022-03-20 07:58:01 +13:00
JT
a16e485cce
Add support for defining known externals with their own custom completions (#4425)
* WIP for known externals

* Now completions can work from scripts

* Add support for definiing externs

* finish cleaning up old proof-of-concept
2022-02-11 13:38:10 -05:00
JT
8a93548de2
Error make (#948)
* Add `error make` and improve `metadata`

* Allow metadata to work on just a pipeline
2022-02-05 09:39:51 -05:00
JT
44821d9941
Add support for def-env and export def-env (#887) 2022-01-29 15:45:46 -05:00
JT
3d0b1ef1ce
Highlight help tutor (#838)
* WIP

* Syntax highlight help, add tutor
2022-01-25 02:05:19 +11:00
Justin
56ae07adb9
Ported ignore command to engine-q (#621)
* Ported `ignore` command to engine-q

* Format ignore command
2021-12-30 15:54:33 +11:00
JT
7f0921a14b
Add metadata command (#569)
* Add metadata command

* Add string interpolation to testing
2021-12-24 11:16:50 +11:00
JT
0c920f7d05
Add history command (#553) 2021-12-22 22:19:38 +11:00
Ștefan
7cbeebaac1
Port version (#467)
* First iteration of the version command

* Cleanup

* Fix the installed plugins bug

* Fix fmt check issue

* Fix clippy warning

* Fixing all clippy warnings

* Remove old code
2021-12-11 14:08:17 -06:00
JT
e01e73cb67
Add debug and describe (#351)
* Add debug and describe

* Fix test
2021-11-19 18:00:29 +13:00
Jakub Žádník
5459d30a24
Add environment variable support for modules (#331)
* Add 'expor env' dummy command

* (WIP) Abstract away module exportables as Overlay

* Switch to Overlays for use/hide

Works for decls only right now.

* Fix passing import patterns of hide to eval

* Simplify use/hide of decls

* Add ImportPattern as Expr; Add use env eval

Still no parsing of "export env" so I can't test it yet.

* Refactor export parsing; Add InternalError

* Add env var export and activation; Misc changes

Now it is possible to `use` env var that was exported from a module.

This commit also adds some new errors and other small changes.

* Add env var hiding

* Fix eval not recognizing hidden decls

Without this change, calling `hide foo`, the evaluator does not know
whether a custom command named "foo" was hidden during parsing,
therefore, it is not possible to reliably throw an error about the "foo"
name not found.

* Add use/hide/export env var tests; Cleanup; Notes

* Ignore hide env related tests for now

* Fix main branch merge mess

* Fixed multi-word export def

* Fix hiding tests on Windows

* Remove env var hiding for now
2021-11-16 12:16:06 +13:00
Fernando Herrera
12eed1f98a plugin feature flag 2021-11-02 20:56:00 +00:00
JT
7b2116dc29
Merge pull request #270 from elferherrera/plugins
Plugins for engine q
2021-11-02 19:07:45 +13:00
Antonio Natilla
f4ed4fa7e3 Implementing Command for Echo, no examples
Referring to:

https://github.com/nushell/nushell/blob/main/crates/nu-command/src/commands/core_commands/echo.rs

as the original implementation.
2021-11-01 09:12:48 +01:00
Fernando Herrera
468b9affde move run_plugin command location 2021-11-01 07:40:05 +00:00
Fernando Herrera
a390f66dbf call and response serializers 2021-10-31 08:17:01 +00:00
JT
e4ce41ba15 Fix the for loop to create vars 2021-10-10 05:10:46 +13:00
Tanishq Kancharla
dfd321a679
Merge branch 'main' into source-command 2021-10-03 14:25:00 -04:00
JT
b5ec9e0360
Update mod.rs 2021-10-03 06:16:02 +13:00
Jakub Žádník
81cd03626d
Merge branch 'main' into module-export 2021-10-02 18:53:35 +03:00
Tanishq Kancharla
2d4e471052 fix more merge conflicts 2021-10-01 22:17:32 -04:00
JT
c5e9ff5f14 add ps and early help 2021-10-02 10:53:13 +13:00
Jakub Žádník
aa06a71e1f Move new commands to the new structure 2021-10-01 23:24:57 +03:00
JT
8250b44ce5 moved commands 2021-09-30 07:25:05 +13:00