Commit Graph

1767 Commits

Author SHA1 Message Date
Ian Manske
21d30d1e4d
Fix rm on macOS (#10282)
# Description

Removes the signal ignore for `SIGCHLD` added by #10021, since it
interferes with `rm` on macOS.
2023-09-08 19:03:30 -05:00
Ian Manske
872eb2c3df
Restore initial foreground process group on exit (#10021)
# Description
When launching nushell interactively from another shell, the parent
shell usually gives us own our process group and handles restoring
control to itself. However, other programs that do not support job
control expect us to give control of the terminal back to them. This PR
makes it so that we record the initial foreground process group and
restore it when nushell exits. An "exit" can be from the `exit` command,
a panic, or a `SIGTERM` signal.

The changes in `terminal.rs` mostly follow [fish's
example](0874dd6a96/fish-rust/src/common.rs (L1634)).

# User-Facing Changes
Fixes interactions between nushell and other interactive CLI commands
(e.g., VIFM #10015).
2023-09-08 18:19:01 +02:00
Darren Schroeder
a9216deaa4
allow --login to be used with nu's --commands parameter (#10253)
# Description

This PR allows the `--login`/`-l` parameter to be used with nushell's
`--commands`/`-c` parameter. When you do this, since you're invoking it
with the `-l` flag, nushell will load your env.nu, config.nu, and
login.nu, in that order. Then it will proceed to run your commands. I
think this provides a better quality of life when you want to run
scripts with your personal config files as a login shell.


### Before (these entries are from the default_env.nu)

![image](https://github.com/nushell/nushell/assets/343840/ce7adcd0-419e-485c-b7d1-f11f162e8e9e)


### After (these entries are from my personal env.nu)

![image](https://github.com/nushell/nushell/assets/343840/33bbc06b-983c-4461-8274-290e4c712506)


closes https://github.com/nushell/nushell/issues/9833

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
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Make sure you've run and fixed any issues with these commands:

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- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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crates/nu-std"` to run the tests for the standard library

> **Note**
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> ```
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2023-09-06 13:27:16 -05:00
Antoine Stevan
7486850357
rename the types with spaces in them to use - (#9929)
# Description
before this PR,
```nushell
> $.a.b | describe
cell path
```
which feels inconsistent with the `cell-path` type annotation, like in
```nushell
> def foo [x: cell-path] { $x | describe }; foo $.a.b
cell path
```

this PR changes the name of the "cell path" type from `cell path` to
`cell-path`

# User-Facing Changes
`cell path` is now `cell-path` in the output of `describe`.
this might be a breaking change in some scripts.

same goes with
- `list stream` -> `list-stream`
- `match pattern` -> `match-pattern`

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
-  `toolkit test`
-  `toolkit test stdlib`

this PR adds a new `cell_path_type` test to make sure it stays equal to
`cell-path` in the future.

# After Submitting

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-09-06 13:22:12 -05:00
JT
6cdfee3573
Move Value to helpers, separate span call (#10121)
# Description

As part of the refactor to split spans off of Value, this moves to using
helper functions to create values, and using `.span()` instead of
matching span out of Value directly.

Hoping to get a few more helping hands to finish this, as there are a
lot of commands to update :)

# User-Facing Changes
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mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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crates/nu-std"` to run the tests for the standard library

> **Note**
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---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
Co-authored-by: WindSoilder <windsoilder@outlook.com>
2023-09-03 07:27:29 -07:00
Jakub Žádník
d28f728787
Add NU_VERSION environment variable on startup (#10177) 2023-09-01 09:48:13 +03:00
Jakub Žádník
f35808cb89
Make $nu constant (#10160) 2023-09-01 09:18:55 +03:00
Horasal
b943cbedff
skip comments and eols while parsing pipeline (#10149)
This pr 
- fixes https://github.com/nushell/nushell/issues/10143
- fixes https://github.com/nushell/nushell/issues/5559

# Description

Current `lite_parse` does not handle multiple line comments and eols in
pipeline.
When parsing the following tokens:


| `"abcdefg"` | ` \|` | `# foobar` | ` \n` | `split chars` |
| ------------- | ------------- |------------- |-------------
|------------- |
| [Command] | [Pipe] | [Comment] | [Eol] | [Command] |
| | | Last Token |Current Token | |

`TokenContent::Eol` handler only checks if `last_token` is `Pipe` but it
will be broken if there exist any other thing, e.g. extra `[Comment]` in
this example.

This pr make the following change:

- While parsing `[Eol]`, try to find the last non-comment token as
`last_token`
- Comment is supposed as `[Comment]+` or `([Comment] [Eol])+`
- `[Eol]+` is still parsed just like current nu (i.e. generates
`nothing`).

Notice that this pr is just a quick patch if more comment/eol related
issue occures, `lite_parser` may need a rewrite.

# User-Facing Changes

Now the following pipeline works: 

```bash
1 | # comment
each { |it| $it + 2 } | # comment
math sum
```

Comment will not end the pipeline in interactive mode:

```bash
❯ 1 | # comment   (now enter multiple line mode instead of end)
▶▶ # foo
▶▶ 2
```

# Tests + Formatting

- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`

# After Submitting

None

---------

Co-authored-by: Horasal <horsal@horsal.dev>
2023-08-30 13:24:13 -05:00
Michael Angerman
3f2c76df28
Move eval_hook to nu-cmd-base (#10146)
I moved hook to *nu_cmd_base* instead of *nu_cli* because it will enable
other developers to continue to use hook even if they decide to write
their on cli or NOT depend on nu-cli

Then they will still have the hook functionality because they can
include nu-cmd-base
2023-08-29 23:46:50 +02:00
Darren Schroeder
0f05475e2e
name hooks internally (#10127)
# Description

This PR names the hooks as they're executing so that you can see them
with debug statements. So, at the beginning of `eval_hook()` you could
put a dbg! or eprintln! to see what hook was executing. It also shows up
in View files.

### Before - notice item 14 and 25

![image](https://github.com/nushell/nushell/assets/343840/22c19bbe-6bac-4132-9579-863922d91f22)

### After - The hooks are now named (14 & 25)

![image](https://github.com/nushell/nushell/assets/343840/a08abd11-4f03-4f09-bbac-e4b5180df078)


Curiosity, on my mac, the display_output hook fires 3 times before
anything else. Also, curious is that the value if the display_output, is
not what I have in my config but what is in the default_config. So,
there may be a bug or some shenanigans going on somewhere with hooks.

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
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Make sure you've run and fixed any issues with these commands:

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- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
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automatically
> toolkit check pr
> ```
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2023-08-27 06:55:20 -05:00
Jakub Žádník
5ac5b90aed
Allow parse-time evaluation of calls, pipelines and subexpressions (#9499)
Co-authored-by: Antoine Stevan <44101798+amtoine@users.noreply.github.com>
2023-08-26 16:41:29 +03:00
nibon7
ad12018199
Use built-in is_terminal instead of is_terminal::is_terminal (#9550)
# Description
This PR tries to remove ~atty~ is-terminal from the entire code base,
since ~[atty is
unmaintained](https://rustsec.org/advisories/RUSTSEC-2021-0145) and~
[`is_terminal` has been
stabilized](https://blog.rust-lang.org/2023/06/01/Rust-1.70.0.html#isterminal)
in rust 1.70.0.

cc @fdncred 

# User-Facing Changes
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helps us keep track of breaking changes. -->

# Tests + Formatting
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you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library

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> ```
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2023-08-25 10:54:44 +02:00
Darren Schroeder
af82eeca72
remove --column from length command and remove record processing (#10091)
# Description

This PR removes `record` processing from the `length` command. It just
doesn't make sense to try and get the length of a record. This PR also
removes the `--column` parameter. If you want to list or count columns,
you could use `$table | columns` or `$table | columns | length`.

close #10074 

### Before

![image](https://github.com/nushell/nushell/assets/343840/83488316-3ec4-4c32-9583-00341a71f46f)

### After
Catches records two different ways now.
with the `input_output_types` checker

![image](https://github.com/nushell/nushell/assets/343840/ca67f8b6-359e-4933-ab4d-1b702f8d79cf)

and with additional logic in the command for cases like `echo`

![image](https://github.com/nushell/nushell/assets/343840/99064351-b208-4bd3-bab9-535f97cd7ad4)


# User-Facing Changes
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# Tests + Formatting
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crates/nu-std"` to run the tests for the standard library

> **Note**
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> ```
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2023-08-23 16:03:26 -05:00
Jakub Žádník
66023f6243
Remove "let config" warning (#10068)
If you have a `config` variable defined at some point after reading
config files, Nushell would print
```
warning: use `$env.config = ...` instead of `let config = ...`
```

I think it's long enough since we've used `$env.config` that we can
remove this. Furthermore, it should be printed during `let` parsing
because you can end up with a `config` constant after importing a
`config` module (that was my case). The warning thus can be misleading.
2023-08-20 22:02:52 +02:00
Darren Schroeder
13114e972b
try to document the more obscure testbin commands (#10057)
# Description

This PR tries to document some of the more obscure testbin parameters
and what they do. I still don't grok all of them.

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
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- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

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> ```
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2023-08-19 08:23:11 -05:00
Jakub Žádník
cdf09abcc0
Allow exporting extern-wrapped (#10025) 2023-08-18 20:45:33 +03:00
Jakub Žádník
2e0fb7c1a6
Change str replace to match substring by default (#10038) 2023-08-18 00:18:16 +03:00
JT
839010b89d
Auto-expand table based on terminal width (#9934)
# Description

This PR adds back the functionality to auto-expand tables based on the
terminal width, using the logic that if the terminal is over 100 columns
to expand.

This sets the default config value in both the Rust and the default
nushell config.

To do so, it also adds back the ability for hooks to be strings of code
and not just code blocks.

Fixed a couple tests: two which assumed that the builtin display hook
didn't use a table -e, and one that assumed a hook couldn't be a string.

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
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- `cargo test --workspace` to check that all tests pass
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
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> ```
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2023-08-08 05:47:23 -05:00
Ian Manske
f615038938
Enable macOS foreground process handling (#9909)
# Description
Currently, foreground process management is disabled for macOS, since
the original code had issues (see #7068).
This PR re-enables process management on macOS in combination with the
changes from #9693.

# User-Facing Changes
Fixes hang on exit for nested nushells on macOS (issue #9859). Nushell
should now manage processes in the same way on macOS and other unix
systems.
2023-08-04 15:43:35 -05:00
WindSoilder
14bf25da14
rename from date format to format date (#9902)
# Description
Closes: #9891
I also think it's good to keep command name consistency.

And moving `date format` to deprecated.

# User-Facing Changes
Running `date format` will lead to deprecate message:
```nushell
❯ "2021-10-22 20:00:12 +01:00" | date format
Error: nu:🐚:deprecated_command

  × Deprecated command date format
   ╭─[entry #28:1:1]
 1 │ "2021-10-22 20:00:12 +01:00" | date format
   ·                                ─────┬─────
   ·                                     ╰── 'date format' is deprecated. Please use 'format date' instead.
   ╰────
```
2023-08-04 06:06:00 +12:00
JT
d25df9c00b
Revert 9693 to prevent CPU hangs (#9893)
# Description

This reverts #9693 as it lead to CPU hangs. (btw, did the revert by hand
as it couldn't be done automatically. Hopefully I didn't miss anything 😅
)

Fixes #9859

cc @IanManske 

# User-Facing Changes
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# Tests + Formatting
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crates/nu-std"` to run the tests for the standard library

> **Note**
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> ```
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2023-08-02 11:24:28 +12:00
mengsuenyan
fea822792f
Fixed the panic when type a statement similar to let f = 'f' $ in the nushell (#9851)
- this PR should close #9596 
- fixes #9596 
- this PR should close #9826 
- fixes #9826 

fixed the following bugs:
```nu
# type following statements in the nushell
let f = 'f' $;
mut f = 'f' $;
const f = 'f' $;

# then remove variable f, it will panics
let = 'f' $;
mut  = 'f' $;
const = 'f' $;
```
2023-08-02 04:21:40 +12:00
WindSoilder
f6033ac5af
Module: support defining const and use const variables inside of function (#9773)
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# Description
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Relative: #8248 

After this pr, user can define const variable inside a module.

![image](https://github.com/nushell/nushell/assets/22256154/e3e03e56-c4b5-4144-a944-d1b20bec1cbd)

And user can export const variables, the following screenshot shows how
it works (it follows
https://github.com/nushell/nushell/issues/8248#issuecomment-1637442612):

![image](https://github.com/nushell/nushell/assets/22256154/b2c14760-3f27-41cc-af77-af70a4367f2a)

## About the change
1. To make module support const, we need to change `parse_module_block`
to support `const` keyword.
2. To suport export `const`, we need to make module tracking variables,
so we add `variables` attribute to `Module`
3. During eval, the const variable may not exists in `stack`, because we
don't eval `const` when we define a module, so we need to find variables
which are already registered in `engine_state`

## One more thing to note about the const value.
Consider the following code
```
module foo { const b = 3; export def bar [] { $b } }
use foo bar
const b = 4;
bar
```
The result will be 3 (which is defined in module) rather than 4. I think
it's expected behavior.

It's something like [dynamic
binding](https://www.gnu.org/software/emacs/manual/html_node/elisp/Dynamic-Binding-Tips.html)
vs [lexical
binding](https://www.gnu.org/software/emacs/manual/html_node/elisp/Lexical-Binding.html)
in lisp like language, and lexical binding should be right behavior
which generates more predicable result, and it doesn't introduce really
subtle bugs in nushell code.

What if user want dynamic-binding?(For example: the example code returns
`4`)
There is no way to do this, user should consider passing the value as
argument to custom command rather than const.

## TODO
- [X] adding tests for the feature.
- [X] support export const out of module to use.

# User-Facing Changes
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# Tests + Formatting
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> ```
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-->
2023-08-01 07:09:52 +08:00
JT
9448225690
Fix transpose input/output types (#9842)
# Description

As the typechecker doesn't currently support having the same input type
but two different output types, collapse the `transpose` input/output
signatures for now so that we don't mistakenly think that when given a
`table` a `table is always returned.

fixes https://github.com/nushell/nushell/issues/9710

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
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Make sure you've run and fixed any issues with these commands:

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you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **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
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2023-07-29 06:23:17 +12:00
JT
3ef5e90b64
Fix the implied collect type to 'any' (#9827)
# Description

Previously, we had a bug slip in about implied collection caused by
`$in`, that this output type would be of type `string`.

The type system fixes in 0.83 now make this more visible and cause
issues. This PR changes the output of the implied collection to `any`.
At some point in the future, we may want to carry the type through where
we can, but `any` should unblock using `$in`.

fixes #9825

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
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Make sure you've run and fixed any issues with these commands:

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you're using the standard code style
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- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
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> ```
-->

# After Submitting
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2023-07-28 06:26:28 +12:00
JT
f8d325dbfe
Set the rest variable to the correct type (#9816)
# Description

This fixes the type of `$rest` to be a `List<...>` so that it properly
is checked in function bodies.

fixes https://github.com/nushell/nushell/issues/9809
2023-07-26 20:22:08 +02:00
Ian Manske
7e1b922ea7
Add functions for each Value case (#9736)
# Description
This PR ensures functions exist to extract and create each and every
`Value` case. It also renames `Value::boolean` to `Value::bool` to match
`Value::test_bool`, `Value::as_bool`, and `Value::Bool`. Similarly,
`Value::as_integer` was renamed to `Value::as_int` to be consistent with
`Value::int`, `Value::test_int`, and `Value::Int`. These two renames can
be undone if necessary.

# User-Facing Changes
No user facing changes, but two public functions were renamed which may
affect downstream dependents.
2023-07-21 08:20:33 -05:00
JT
d104efdf68
Fix capture logic for inner closures (#9754)
# Description

This fixes the variable capture logic for closures in two cases:

* Closures inside of closures did not properly register the closures (or
lack thereof) in the outer closure
* Closures which called their inner closures before definition did not
properly calculate the closures of the outer closure

Example of the first case:
```
do { let b = 3; def c [] { $b }; c }
```

Example of the second case (notice `c` is called before it is defined):
```
do { let b = 3; c; def c [] { $b }; c }
```

# User-Facing Changes
This should strictly allow closures to work more correctly.

# Tests + Formatting
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you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
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automatically
> toolkit check pr
> ```
-->

# After Submitting
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2023-07-21 07:10:54 +12:00
Ian Manske
17caa31325
nushell should be non-interactive if --testbin is supplied (#9730)
# Description
After #9693, tests will stop and go into the background if run locally
in bash, since nushell is being run in interactive mode even though
`--testbin` is supplied. This makes nushell run in non-interactive mode
if `--testbin` is supplied.
2023-07-19 00:02:09 +02:00
Ian Manske
a5a79a7d95
Do not attempt to take control of terminal in non-interactive mode (#9693)
# Description
Fixes a regression from #9681 where nushell will attempt to place itself
into the background or take control of the terminal even in
non-interactive mode.

Using the same
[reference](https://www.gnu.org/software/libc/manual/html_node/Initializing-the-Shell.html)
from #6584:

>A subshell that runs *interactively* has to ensure that it has been
placed in the foreground...

>A subshell that runs *non-interactively* cannot and should not support
job control.

`fish`
[code](54fa1ad6ec/src/reader.cpp (L4862))
also seems to follow this.

This *partially* fixes
[9026](https://github.com/nushell/nushell/issues/9026). That is, nushell
will no longer set the foreground process group in non-interactive mode.
2023-07-17 16:32:29 -05:00
Stefan Holderbach
656f707a0b
Clean up tests containing unnecessary cwd: tokens (#9692)
# Description
The working directory doesn't have to be set for those tests (or would
be the default anyways). When appropriate also remove calls to the
`pipeline()` function. In most places kept the diff minimal and only
removed the superfluous part to not pollute the blame view. With simpler
tests also simplified things to make them more readable overall (this
included removal of the raw string literal).

Work for #8670
2023-07-17 18:43:51 +02:00
JT
57d96c09fa
fix input signature of let/mut (#9695)
# Description

This updates `let` and `mut` to allow for any input. This lets them
typecheck any collection they do.

For example, this now compiles:

```
def foo []: [int -> int, string -> int] {
  let x = $in
  if ($x | describe) == "int" { 3 } else { 4 }
}

100 | foo
```

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
<!--
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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)
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clippy::needless_collect -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **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
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2023-07-15 19:41:48 +12:00
JT
b693db16cc
Revert "Fix SIGTTIN handling" (#9694)
Reverts nushell/nushell#9681

As mentioned in #9681 - this breaks running tests in wsl2.
2023-07-15 15:30:29 +12:00
JT
53ae03bd63
Custom command input/output types (#9690)
# Description

This adds input/output types to custom commands. These are input/output
pairs that related an input type to an output type.

For example (a single int-to-int input/output pair):

```
def foo []: int -> int { ... }
```

You can also have multiple input/output pairs:
```
def bar []: [int -> string, string -> list<string>] { ... }
```

These types are checked during definition time in the parser. If the
block does not match the type, the user will get a parser error.

This `:` to begin the input/output signatures should immediately follow
the argument signature as shown above.

The PR also improves type parsing by re-using the shape parser. The
shape parser is now the canonical way to parse types/shapes in user
code.

This PR also splits `extern` into `extern`/`extern-wrapped` because of
the parser limitation that a multi-span argument (which Signature now
is) can't precede an optional argument. `extern-wrapped` now takes the
required block that was previously optional.

# User-Facing Changes

The change to `extern` to split into `extern` and `extern-wrapped` is a
breaking change.

# Tests + Formatting
<!--
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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 -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **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
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-->
2023-07-15 09:51:28 +12:00
JT
8c52b7a23a
Change input/output types in help to a table (#9686)
# Description

Updates `help` to more clearly show input/output types.

Before:


![image](https://github.com/nushell/nushell/assets/547158/5f11ca5c-54a0-414d-b3de-1a8b4dd7fcbd)

After:


![image](https://github.com/nushell/nushell/assets/547158/afc0eb1e-fad8-43b1-9382-c2a0d8e9334e)

# User-Facing Changes

See above

# Tests + Formatting
<!--
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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)
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clippy::needless_collect -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **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.
-->
2023-07-15 06:23:21 +12:00
Ian Manske
2fc9506bc7
Fix SIGTTIN handling (#9681)
# Description
Due to a typo? in the
[reference](https://www.gnu.org/software/libc/manual/html_node/Initializing-the-Shell.html)
used to implement SIGTTIN handling, nushell will crash when being sent
to the background from within another shell.

For example, currently in bash:
```bash
$ nu -n &
[1] 176058
$ ERROR: failed to SIGTTIN ourselves

[1]+  Exit 1                  nu -n
$
```

Now fixed:
```bash
$ nu -n &
[1] 178788
$ jobs
[1]+  Stopped                 nu -n
$
```

For further reference, this is how
[fish](493cbeb84c/src/reader.cpp (L2571))
does it.

# User-Facing Changes
Bug fix only -- users should now be able to send nushell to the
background.
2023-07-15 06:15:48 +12:00
JT
786ba3bf91
Input output checking (#9680)
# Description

This PR tights input/output type-checking a bit more. There are a lot of
commands that don't have correct input/output types, so part of the
effort is updating them.

This PR now contains updates to commands that had wrong input/output
signatures. It doesn't add examples for these new signatures, but that
can be follow-up work.

# User-Facing Changes

BREAKING CHANGE BREAKING CHANGE

This work enforces many more checks on pipeline type correctness than
previous nushell versions. This strictness may uncover incompatibilities
in existing scripts or shortcomings in the type information for internal
commands.

# Tests + Formatting
<!--
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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)
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clippy::needless_collect -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **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
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documentation](https://github.com/nushell/nushell.github.io) after the
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-->
2023-07-14 15:20:35 +12:00
Stefan Holderbach
39b43d1e4b
Use is-terminal crate for now (#9670)
# Description
Until we bump our minimal Rust version to `1.70.0` we can't use
`std::io::IsTerminal`. The crate `is-terminal` (depending on `rustix` or
`windows-sys`) can provide the same.
Get's rid of the dependency on the outdated `atty` crate.
We already transitively depend on it (e.g. through `miette`)

As soon as we reach the new Rust version we can supersede this with
@nibon7's #9550

Co-authored-by: nibon7 <nibon7@163.com>
2023-07-12 18:15:54 +02:00
mike
8e38596bc9
allow tables to have annotations (#9613)
# Description

follow up to #8529 and #8914

this works very similarly to record annotations, only difference being
that

```sh
table<name: string>
      ^^^^  ^^^^^^
      |     | 
      |     represents the type of the items in that column
      |
      represents the column name
```
more info on the syntax can be found
[here](https://github.com/nushell/nushell/pull/8914#issue-1672113520)

# User-Facing Changes

**[BREAKING CHANGE]**
this change adds a field to `SyntaxShape::Table` so any plugins that
used it will have to update and include the field. though if you are
unsure of the type the table expects, `SyntaxShape::Table(vec![])` will
suffice
2023-07-07 11:06:09 +02:00
Antoine Stevan
504eff73f0
REFACTOR: move the 0% commands to nu-cmd-extra (#9404)
requires
- https://github.com/nushell/nushell/pull/9455

# ⚙️ Description
in this PR i move the commands we've all agreed, in the core team, to
move out of the core Nushell to the `extra` feature.

> **Warning**
> in the first commits here, i've
> - moved the implementations to `nu-cmd-extra`
> - removed the declaration of all the commands below from `nu-command`
> - made sure the commands were not available anymore with `cargo run --
-n`

## the list of commands to move
with the current command table downloaded as `commands.csv`, i've run
```bash
let commands = (
    open commands.csv
    | where is_plugin == "FALSE" and category != "deprecated"
    | select name category "approv. %"
    | rename name category approval
    | insert treated {|it| (
        ($it.approval == 100) or                # all the core team agreed on them
        ($it.name | str starts-with "bits") or  # see https://github.com/nushell/nushell/pull/9241
        ($it.name | str starts-with "dfr")      # see https://github.com/nushell/nushell/pull/9327
    )}
)
```
to preprocess them and then
```bash
$commands | where {|it| (not $it.treated) and ($it.approval == 0)}
```
to get all untreated commands with no approval, which gives
```
╭────┬───────────────┬─────────┬─────────────┬──────────╮
│  # │     name      │ treated │  category   │ approval │
├────┼───────────────┼─────────┼─────────────┼──────────┤
│  0 │ fmt           │ false   │ conversions │        0 │
│  1 │ each while    │ false   │ filters     │        0 │
│  2 │ roll          │ false   │ filters     │        0 │
│  3 │ roll down     │ false   │ filters     │        0 │
│  4 │ roll left     │ false   │ filters     │        0 │
│  5 │ roll right    │ false   │ filters     │        0 │
│  6 │ roll up       │ false   │ filters     │        0 │
│  7 │ rotate        │ false   │ filters     │        0 │
│  8 │ update cells  │ false   │ filters     │        0 │
│  9 │ decode hex    │ false   │ formats     │        0 │
│ 10 │ encode hex    │ false   │ formats     │        0 │
│ 11 │ from url      │ false   │ formats     │        0 │
│ 12 │ to html       │ false   │ formats     │        0 │
│ 13 │ ansi gradient │ false   │ platform    │        0 │
│ 14 │ ansi link     │ false   │ platform    │        0 │
│ 15 │ format        │ false   │ strings     │        0 │
╰────┴───────────────┴─────────┴─────────────┴──────────╯
```
# 🖌️ User-Facing Changes
```
$nothing
```

# 🧪 Tests + Formatting
-  `toolkit fmt`
-  `toolkit clippy`
-  `toolkit test`
-  `toolkit test stdlib`

# 📖 After Submitting
```
$nothing
```

# 🔍 For reviewers
```bash
$commands | where {|it| (not $it.treated) and ($it.approval == 0)} | each {|command|
    try {
        help $command.name | ignore
    } catch {|e|
        $"($command.name): ($e.msg)"
    }
}
```
should give no output in `cargo run --features extra -- -n` and a table
with 16 lines in `cargo run -- -n`
2023-07-06 08:31:31 -07:00
mike
544c46e0e4
improve subtyping (#9614)
# Description

the current subtyping rule needs you to define the record entries in the
same order as declared in the annotation. this pr improves that

now
```nushell
{ name: 'Him', age: 12 } 

# ,

{ age: 100, name: 'It' }

# and

{ name: 'Red', age: 69, height: "5-8" }

# will all match

record<name: string, age: int>

# previously only the first one would match
```

however, something like

```nushell
{ name: 'Her' } # will not


# and

{ name: 'Car', wheels: 5 }
```

EDIT: applied JT's suggestion
2023-07-06 10:25:39 +02:00
JT
5d9e2455f7
Let with pipeline (#9589)
# Description

This changes the default behaviour of `let` to be able to take a
pipeline as its initial value.

For example:

```
> let x = "hello world" | str length
```

This is a change from the existing behaviour, where the right hand side
is assumed to be an expression. Pipelines are more general, and can be
more powerful.

My google foo is failing me, but this also fixes this issue:

```
let x = foo
```

Currently, this reads `foo` as a bareword that gets converted to a
string rather than running the `foo` command. In practice, this is
really annoying and is a really hard to spot bug in a script.

# User-Facing Changes

BREAKING CHANGE BREAKING CHANGE

`let` gains the power to be assigned via a pipeline. However, this
changes the behaviour of `let x = foo` from assigning the string "foo"
to `$x` to being "run the command `foo` and give the result to `$x`"

# Tests + Formatting
<!--
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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 -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library

> **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
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2023-07-03 17:45:10 +12:00
JT
b70cce47e2
disallow blocks as first-class values (#9587)
# Description

This PR disallows blocks as first-class values by removing the ability
to create them using the `block` syntax shape or type. Now, the parser
will only ever be able to create closures as first-class values.

This means that `{ 3 }` will always be treated as a closure, unless used
in the specifically supported use case of the literal being given as an
arg to `for`, `if` and other built-in block users.

Note: first-class value here means "value that can be passed into
commands and held in variables"

# User-Facing Changes

This may break some user scripts as `: block` is no longer allows as a
type annotation. Note: these cases were not actually supported before,
as, for example, passing a block that accessed a variable would have
errored when the block was later evaluated.

Closures do not have the restriction mentioned above and are the much
safer value to pass as first-class, so now they are the only block-like
value to be allowed to be passed.

# Tests + Formatting
<!--
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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 -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library

> **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
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2023-07-03 07:40:56 +12:00
JT
4af24363c2
remove let-env, focus on mutating $env (#9574)
# Description

For years, Nushell has used `let-env` to set a single environment
variable. As our work on scoping continued, we refined what it meant for
a variable to be in scope using `let` but never updated how `let-env`
would work. Instead, `let-env` confusingly created mutations to the
command's copy of `$env`.

So, to help fix the mental model and point people to the right way of
thinking about what changing the environment means, this PR removes
`let-env` to encourage people to think of it as updating the command's
environment variable via mutation.

Before:

```
let-env FOO = "BAR"
```

Now:

```
$env.FOO = "BAR"
```

It's also a good reminder that the environment owned by the command is
in the `$env` variable rather than global like it is in other shells.

# User-Facing Changes

BREAKING CHANGE BREAKING CHANGE

This completely removes `let-env FOO = "BAR"` so that we can focus on
`$env.FOO = "BAR"`.

# Tests + Formatting
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# After / Before Submitting
integration scripts to update:
- ✔️
[starship](https://github.com/starship/starship/blob/master/src/init/starship.nu)
- ✔️
[virtualenv](https://github.com/pypa/virtualenv/blob/main/src/virtualenv/activation/nushell/activate.nu)
- ✔️
[atuin](https://github.com/ellie/atuin/blob/main/atuin/src/shell/atuin.nu)
(PR: https://github.com/ellie/atuin/pull/1080)
- 
[zoxide](https://github.com/ajeetdsouza/zoxide/blob/main/templates/nushell.txt)
(PR: https://github.com/ajeetdsouza/zoxide/pull/587)
- ✔️
[oh-my-posh](https://github.com/JanDeDobbeleer/oh-my-posh/blob/main/src/shell/scripts/omp.nu)
(pr: https://github.com/JanDeDobbeleer/oh-my-posh/pull/4011)
2023-07-01 07:57:51 +12:00
Darren Schroeder
e6b4e59c0f
update ide-check help text (#9559)
# Description

Updates `--ide-check` help

## Before

run a diagnostic check on the given source

## After

run a diagnostic check on the given source and limit number of errors
returned to provided number

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
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Make sure you've run and fixed any issues with these commands:

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clippy::needless_collect -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library

> **Note**
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> ```bash
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# After Submitting
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2023-06-29 11:40:52 -05:00
JT
9068093081
Improve type hovers (#9515)
# Description

This PR does a few things to help improve type hovers and, in the
process, fixes a few outstanding issues in the type system. Here's a
list of the changes:

* `for` now will try to infer the type of the iteration variable based
on the expression it's given. This fixes things like `for x in [1, 2, 3]
{ }` where `x` now properly gets the int type.
* Removed old input/output type fields from the signature, focuses on
the vec of signatures. Updated a bunch of dataframe commands that hadn't
moved over. This helps tie things together a bit better
* Fixed inference of types from subexpressions to use the last
expression in the block
* Fixed handling of explicit types in `let` and `mut` calls, so we now
respect that as the authoritative type

I also tried to add `def` input/output type inference, but unfortunately
we only know the predecl types universally, which means we won't have
enough information to properly know what the types of the custom
commands are.

# User-Facing Changes

Script typechecking will get tighter in some cases
Hovers should be more accurate in some cases that previously resorted to
any.

# Tests + Formatting
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you're using the standard code style
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- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library

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> ```
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# After Submitting
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---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-06-29 05:19:48 +12:00
Michael Angerman
d1449c4ee7
cratification: move the bytes command to nu-cmd-extra (#9509)
now that #9455 has landed we can move the bytes command to nu-cmd-extra

in concert with

moving nu_command::util to nu-cmd-base
2023-06-23 12:23:08 -07:00
JT
fbf3f7cf1c
split $nu variable into scope commands and simpler $nu (#9487)
# Description

This splits off `scope` from `$nu`, creating a set of `scope` commands
for the various types of scope you might be interested in.

This also simplifies the `$nu` variable a bit.

# User-Facing Changes

This changes `$nu` to be a bit simpler and introduces a set of `scope`
subcommands.

# Tests + Formatting
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- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library

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> ```
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# After Submitting
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2023-06-21 09:33:01 +12:00
WindSoilder
90863439d1
allow comment in multiple line pipeline (#9436)
<!--
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# Description
- fixes: #5517
- fixes: #9250

For the following commands:
```
ls
# | le
| length
```

I found that it generates a bad lite parsing result:
```
LiteBlock { 
    block: [
        LitePipeline { 
            commands: [
                Command(None, LiteCommand { comments: [], parts: [Span { start: 138600, end: 138602 }] })
            ]
        },
        LitePipeline { 
            commands: [
                Command(Some(Span { start: 138610, end: 138611 }),
                LiteCommand { comments: [Span { start: 138603, end: 138609 }], parts: [Span { start: 138612, end: 138618 }] })
            ]
        }
    ]
}
```

Which should contains only one `LitePipeline`, and the second
`LitePipeline` is generated because of `Eol` lex token:
```
[
    Token { contents: Item, span: Span { start: 138600, end: 138602 } },
    Token { contents: Eol, span: Span { start: 138602, end: 138603 } },    // it generates the second LitePipeline
    Token { contents: Comment, span: Span { start: 138603, end: 138609 } },
    Token { contents: Pipe, span: Span { start: 138610, end: 138611 } },
    Token { contents: Item, span: Span { start: 138612, end: 138618 } }
]
```

To fix the issue, I remove the `Eol` token when we meet `Comment` right
after `Eol`, then it will generate a good LiteBlock, and everything will
work fine.

### After the fix:
Token:
```
[
  Token { contents: Item, span: Span { start: 138618, end: 138620 } },
  Token { contents: Comment, span: Span { start: 138622, end: 138628 } },
  Token { contents: Pipe, span: Span { start: 138629, end: 138630 } },
  Token { contents: Item, span: Span { start: 138631, end: 138637 } }
]
```

LiteBlock:
```
LiteBlock {
  block: [
    LitePipeline { 
      commands: [
        Command(
            None, 
            LiteCommand { 
                comments: [Span { start: 138622, end: 138628 }],
                parts: [Span { start: 138618, end: 138620 }] 
            }
        ),
        Command(
            Some(Span { start: 138629, end: 138630 }),
            LiteCommand { comments: [], parts: [Span { start: 138631, end: 138637 }] })] }] }
```
<!--
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Description of your pull request goes here. **Provide examples and/or
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# User-Facing Changes
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# Tests + Formatting
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standard library

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# After Submitting
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2023-06-15 13:11:42 +02:00
Filip Andersson
2fd4a36c0d
Changes global allocator to mimalloc, improving performance. (#9415)
# Description
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guide](../CONTRIBUTING.md) and talk to the core team before making major
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Description of your pull request goes here. **Provide examples and/or
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this PR makes nushell use mimalloc as the default allocator, this has
the benefit of reducing startup time on my machine. `17%` on linux and
`22%` on windows, when testing using hyperfine.
the overhead to compile seem to be quite small, aswell as the increase
of binary size quite small
on linux the binary went from `33.1mb` to `33.2mb`

linux

![image](https://github.com/nushell/nushell/assets/17986183/ba5379b4-2c08-483a-a9ff-a9d8524d2943)

windows 

![image](https://github.com/nushell/nushell/assets/17986183/fda5090f-96a9-48d1-ada4-617694b9d880)


# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
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clippy::needless_collect -A clippy::result_large_err` to check that
you're using the standard code style
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- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library

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# After Submitting
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2023-06-14 17:27:12 -05:00