Commit Graph

1749 Commits

Author SHA1 Message Date
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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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 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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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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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
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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
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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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crates/nu-std"` to run the tests for the standard library

> **Note**
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> ```
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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:

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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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> ```bash
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automatically
> toolkit check pr
> ```
-->

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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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- `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
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> ```
-->

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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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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**
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> ```
-->

# After Submitting
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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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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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2023-07-14 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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fmt --all` applies these changes)
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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

> **Note**
> from `nushell` you can also use the `toolkit` as follows
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> ```
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# After Submitting
<!-- If your PR had any user-facing changes, update [the
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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:

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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**
> 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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2023-07-03 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
<!--
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 -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 / 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:

- `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
<!-- 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.
-->
2023-06-29 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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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 -- 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
<!-- 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.
-->

---------

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

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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 -- 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
<!-- 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.
-->
2023-06-21 09:33:01 +12:00
WindSoilder
90863439d1
allow comment in multiple line pipeline (#9436)
<!--
if this PR closes one or more issues, you can automatically link the PR
with
them by using one of the [*linking
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you can also mention related issues, PRs or discussions!
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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 }] })] }] }
```
<!--
Thank you for improving Nushell. Please, check our [contributing
guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.

Description of your pull request goes here. **Provide examples and/or
screenshots** if your changes affect the user experience.
-->

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

# 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)
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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**
> 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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2023-06-15 13:11:42 +02:00
Filip Andersson
2fd4a36c0d
Changes global allocator to mimalloc, improving performance. (#9415)
# Description
<!--
Thank you for improving Nushell. Please, check our [contributing
guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.

Description of your pull request goes here. **Provide examples and/or
screenshots** if your changes affect the user experience.
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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
<!--
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 -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
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
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-->
2023-06-14 17:27:12 -05:00
Stefan Holderbach
46eebc644c
Break up interdependencies of command crates (#9429)
# Description
Make sure that our different crates that contain commands can be
compiled in parallel.
This can under certain circumstances accelerate the compilation with
sufficient multithreading available.

## Details
- Move `help` commands from `nu-cmd-lang` back to `nu-command`
- This also makes sense as the commands are implemented in an
ANSI-terminal specific way
- Make `nu-cmd-lang` only a dev dependency for `nu-command`
- Change context creation helpers for `nu-cmd-extra` and
`nu-cmd-dataframe` to have a consistent api used in
`src/main.rs`:`get_engine_state()`
- `nu-command` now indepedent from `nu-cmd-extra` and `nu-cmd-dataframe`
that are now dependencies of `nu` directly. (change to internal
features)
- Fix tests that previously used `nu-command::create_default_context()`
with replacement functions

## From scratch compilation times:

just debug (dev) build and default features
```
cargo clean --profile dev && cargo build --timings
```

### before

![grafik](https://github.com/nushell/nushell/assets/15833959/e49f1f42-2e53-4a6c-bc23-625b686af1bc)

### after

![grafik](https://github.com/nushell/nushell/assets/15833959/8dec4723-e625-4a86-b91e-e6e808f64726)

# User-Facing Changes
None direct, only change to compilation on multithreaded jobs expected.

# Tests + Formatting
Tests that previously chose to use `nu-command` for their scope will
still use `nu-cmd-lang` + `nu-command` (command list in the granularity
at the time)
2023-06-14 23:12:55 +02:00
Stefan Holderbach
604aadc938
Move explore command out of nu-command deps (#9421)
# Description
For better parallel compilation, make sure that `nu-command` doesn't
depend on `nu-explore`.

Moves the `nu_protocol::Command` implementation into `nu-explore`. Adds
`nu_explore::add_explore_context()` which is used in `main.rs` to add
the `explore` command.

Minor improvement in compile time ~0.5 sec observed as `nu-command`
still blocks on `nu-cmd-lang` as well.

## `cargo build --timings` before


![grafik](https://github.com/nushell/nushell/assets/15833959/583aa56e-6a1e-47b9-ba00-6a86293a38db)

## `cargo build --timings` after


![grafik](https://github.com/nushell/nushell/assets/15833959/30687575-c1c8-4635-bcdd-7ce9488fcfff)


# User-Facing Changes
None
2023-06-14 01:18:36 +02:00
Steven Xu
be53ecbbaa
refactor: merge repl_buffer_state, repl_cursor_pos into one mutex (#9031)
# Description
Merge `repl_buffer_state`, `repl_cursor_pos` into one mutex.

# User-Facing Changes

# Tests + Formatting

# After Submitting
2023-06-10 17:38:11 -05:00
Antoine Stevan
ce71ea0b5c
fix a typo (#9393)
related to
-
bdb09a9a00
- [this
job](https://github.com/nushell/nushell/actions/runs/5224369668/jobs/9432486180?pr=9392)
from #9392
- [this
job](https://github.com/nushell/nushell/actions/runs/5222835000/jobs/9428854834?pr=9391)
from #9391

# Description
this PR tries to fix the typo reported in these very recent PRs
2023-06-09 17:14:18 -05:00
Jakub Žádník
82e6873702
Fix config creation during printing (#9353) 2023-06-04 22:04:28 +03:00
Michael Angerman
356e05177c
nu-cmd-extra crate infrastructure in place with the Bits command as the model for adding other commands (#9327)
I wanted to get the infrastructure in place for starters for our
*nu-cmd-extra* crate...

The plan is to put inside here the following commands...

* bits
* bytes
* math

I thought it would be easier to do one at a time as well as get the
nu-cmd-extra crate out there on crates.io
for this upcoming release...

Once this lands the infrastructure will be in place to move over the
other noted commands for now...
And then add other stuff we do NOT want to be in 1.0.
2023-06-01 10:46:16 -07:00
Maxim Zhiburt
7f758d3e51
Merge stack before printing (#9304)
Could you @fdncred try it?

close?: #9264

---------

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-05-29 19:03:00 -05:00
mike
cc04b9a916
fix conflict between filesize and hexadecimal numbers (#9309)
closes #9278 

# Description

removes ambiguity between the `b` the filesize `bytes` unit and `b` the
hex digit
2023-05-28 12:56:58 +02:00
Darren Schroeder
ffde939df3
if --no-config-file(-n) is passed, do not load config files with -c (#9286)
# Description

I noticed recently these timing discrepancies. I was thinking they would
be nearly identical but they were not.
```
> nu --no-std-lib -n -c "$nu.startup-time"
13ms 686µs 209ns
> nu --no-std-lib -n
> $nu.startup-time
2ms 520µs 416ns
```
My research showed that if `-n` was passed with `-c`, then the `-n` was
essentially being ignored. This PR corrects that.

Also worthy of understanding, if `nu -c "some command"` is passed, the
default env file is always loaded. I believe that's on purpose so that a
NU_LIB_DIRS env is available.

## After this PR (on a different system)
```
> nu --no-std-lib -n -c "$nu.startup-time"
6ms 688µs 600ns
> nu -n --no-std-lib
> $nu.startup-time
6ms 661µs 800ns
```

# 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 -- crates/nu-std/tests/run.nu` to run the tests for the
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# After Submitting
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2023-05-25 08:24:56 -05:00
JT
fa113172da
Fix clippy warnings (upcoming) (#9282)
# Description

Fixes the clippy warnings we're about to get hit with next time we
upgrade Rust.

The big one was shrinking ShellError and related under 128 bytes.

# User-Facing Changes

Shouldn't notice much difference. In theory, we could see a tiny perf
improvement, but I didn't notice one.

# 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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> use toolkit.nu # or use an `env_change` hook to activate it
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2023-05-25 10:58:18 +12:00
Jakub Žádník
74724dee80
Add virtual path abstraction layer (#9245) 2023-05-23 23:48:50 +03:00
Maria José Solano
4954a762b7
Allow duration defaults (#9249)
# Description
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Fixes #9217 (some cases, still can't accept all default expressions)

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
- Follow-up of #8940, expanding `eval_constant` so that it can also
evaluate values with units.

# Tests + Formatting
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you're using the standard code style
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standard library

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- A unit test was added to verify that defaults like `1sec` are
accepted.
2023-05-20 08:23:25 -05:00
mike
0e4729b203
improve parsing of values with units (#9190)
closes #9111 

# Description

this pr improves parsing of values with units (`filesizes`, `durations`
and any other **future values**) by:

1. allowing underscores in the value part
```nu
> 42kb          # okay
> 42_sec        # okay
> 1_000_000mib  # okay
> 69k_b         # not okay, underscores not allowed in the unit
```

2. improving error messages involving these values
```nu
> sleep 40-sec

# before
Error: nu::parser::parse_mismatch

  × Parse mismatch during operation.
   ╭─[entry #42:1:1]
 1 │ sleep 40-sec
   ·       ──┬──
   ·         ╰── expected duration with valid units
   ╰────

# now
Error:
  × duration value must be a number
   ╭─[entry #41:1:1]
 1 │ sleep 40-sec
   ·       ─┬─
   ·        ╰── not a number
   ╰────
```

3. unifying parsing of these values. now all of these use one function

# User-Facing Changes

filesizes and durations can now have underscores for readability
2023-05-17 18:54:35 -05:00
Antoine Stevan
bf86cd50a5
REFACTOR: remove the shell commands (#8415)
Related to #8368.

# Description
as planned in #8311, the `enter`, `shells`, `g`, `n` and `p` commands
have been re-implemented in pure-`nushell` in the standard library.
this PR removes the `rust` implementations of these commands.

- all the "shells" tests have been removed from
`crates/nu-commnand/tests/commands/` in
2cc6a82da6, except for the `exit` command
- `cd` does not use the `shells` feature in its source code anymore =>
that does not change its single-shell behaviour
- all the command implementations have been removed from
`crates/nu-command/src/shells/`, except for `exit.rs` => `mod.rs` has
been modified accordingly
- the `exit` command now does not compute any "shell" related things
- the `--now` option has been removed from `exit`, as it does not serve
any purpose without sub-shells

# User-Facing Changes
users may now not use `enter`, `shells`, `g`, `n` and `p`
now they would have to use the standard library to have access to
equivalent features, thanks to the `dirs.nu` module introduced by @bobhy
in #8368

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

# After Submitting
the website will have to be regenerated to reflect the removed commands
👍
2023-05-13 12:40:11 -05:00
mike
a3bf2bff49
improve error when name and parameters are not space-separated (#8958)
# Description
closes #8934

this pr improves the diagnostic emitted when the name and parameters of
either `def`, `def-env` or `extern` are not separated by a space

```nu
Error:
  × no space between name and parameters
   ╭─[entry #1:1:1]
 1 │ def err[] {}
   ·        ▲
   ·        ╰── expected space
   ╰────
  help: consider adding a space between the `def` command's name and its parameters
```

from

```nu
Error: nu::parser::missing_positional

  × Missing required positional argument.
   ╭─[entry #1:1:1]
 1 │ def err[] {}
   ╰────
  help: Usage: def <def_name> <params> <body>
```

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
Co-authored-by: Jelle Besseling <jelle@pingiun.com>
2023-05-12 09:10:40 -05:00
Bob Hyman
9e9fe83bfd
Parameter defaults to $nu.scope.commands (#9152)
(*third* try at posting this PR, #9104, like #9084, got polluted with
unrelated commits. I'm never going to pull from the github feature
branch again!)

# Description
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guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.

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Show parameter defaults in scope command signature, where they're
available for display by help.
per https://github.com/nushell/nushell/issues/8928.

I found unexpected ramifications in one completer (NuHelpCompleter) and
plugins, which both use the flag-formatting routine from builtin help.
For the moment I made the minimum necessary changes to get the mainline
scenario to pass tests and run. But we should circle back on what to do
with plugins and help completer..

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
1. New `parameter_default` column to `signatures` table in
`$nu.scope.commands`
It is populated with whatever parameters can be defaulted: currently
positional args and named flags.
2. Built in help (both `help <command>` and `<command> --help` will
display the defaults
3. Help completer will display defaults for flags, but not for
positionals.

Example:
A custom command with some default parameters:
```
〉cat ~/work/dflts.nu 
# sample function to show defaults in help
export def main [
    arg1: string        # mandatory positional
    arg2:string=abc     # optional positional
    --switch            # no default here
    --named:int         # named flag, no default
    --other:string=def  # flag 
    --hard:record<foo:int bar:string, bas:bool> # default can be compound type
            = {foo:22, bar:"other worlds", bas:false}
] { {arg1: $arg1,
    arg2: $arg2,
    switch: $switch,
    named: $named,
    other: $other,
    hard: $hard, }
}

〉use ~/work/dflts.nu

〉$nu.scope.commands | where name == 'dflts' | get signatures.0.any | reject short_flag description custom_completion
╭───┬────────────────┬────────────────┬──────────────────────────────────────────┬─────────────┬───────────────────────────╮
│ # │ parameter_name │ parameter_type │               syntax_shape               │ is_optional │     parameter_default     │
├───┼────────────────┼────────────────┼──────────────────────────────────────────┼─────────────┼───────────────────────────┤
│ 0 │                │ input          │ any                                      │ false       │                           │
│ 1 │ arg1           │ positional     │ string                                   │ false       │                           │
│ 2 │ arg2           │ positional     │ string                                   │ true        │ abc                       │
│ 3 │ switch         │ switch         │                                          │ true        │                           │
│ 4 │ named          │ named          │ int                                      │ true        │                           │
│ 5 │ other          │ named          │ string                                   │ true        │ def                       │
│ 6 │ hard           │ named          │ record<foo: int, bar: string, bas: bool> │ true        │ ╭───────┬───────────────╮ │
│   │                │                │                                          │             │ │ foo   │ 22            │ │
│   │                │                │                                          │             │ │ bar   │ other worlds  │ │
│   │                │                │                                          │             │ │ bas   │ false         │ │
│   │                │                │                                          │             │ ╰───────┴───────────────╯ │
│ 7 │                │ output         │ any                                      │ false       │                           │
╰───┴────────────────┴────────────────┴──────────────────────────────────────────┴─────────────┴───────────────────────────╯

〉help dflts
sample function to show defaults in help

Usage:
  > dflts {flags} <arg1> (arg2) 

Flags:
  --switch - switch -- no default here
  --named <Int> - named flag, typed, but no default
  --other <String> - flag with default (default: 'def')
  --hard <Record([("foo", Int), ("bar", String), ("bas", Boolean)])> - default can be compound type (default: {foo: 22, bar: 'other worlds', bas: false})
  -h, --help - Display the help message for this command

Parameters:
  arg1 <string>: mandatory positional
  arg2 <string>: optional positional (optional, default: 'abc')
```

Compared to (relevant bits of) help output previously:
```
Flags:
  -h, --help - Display the help message for this command
  -, --switch - no default here
  -, --named <int> - named flag, no default
  -, --other <string> - flag
  -, --hard <record<foo: int, bar: string, bas: bool>> - default can be compound type

Signatures:
  <any> | dflts <string> <string> -> <any>

Parameters:
  arg1 <string>: mandatory positional
  (optional) arg2 <string>: optional positional
```

# Tests + Formatting
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2023-05-11 13:59:56 -05:00
Antoine Stevan
43a3983d36
REFACTOR: move the banner from the rust source to the standard library (#8406)
Related to:
- #8311 
- #8353

# Description
with the new `$nu.startup-time` from #8353 and as mentionned in #8311,
we are now able to fully move the `nushell` banner from the `rust`
source base to the standard library.

this PR
- removes all the `rust` source code for the banner
- rewrites a perfect clone of the banner to `std.nu`, called `std
banner`
- call `std banner` from `default_config.nu`

# User-Facing Changes
see the demo: https://asciinema.org/a/566521

- no config will show the banner (e.g. `cargo run --release --
--no-config-file`)
- a custom config without the `if $env.config.show_banner` block and no
call to `std banner` would never show the banner
- a custom config with the block and `config.show_banner = true` will
show the banner
- a custom config with the block and `config.show_banner = false` will
NOT show the banner

# Tests + Formatting
a new test line has been added to `tests.nu` to check the length of the
`std banner` output.
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`

# After Submitting
```
$nothing
```

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-05-10 07:05:01 -05:00
Darren Schroeder
fe60fb8679
resolve standard library before ide commands (#9126)
# Description

This PR moves loading the standard library before the ide commands are
executed in hopes that the standard library will no longer give check
errors. I'm not sure if this will be a big performance impact or not.
We'll have to try it and see.

# 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
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- `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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> from `nushell` you can also use the `toolkit` as follows
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> ```
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2023-05-07 07:29:15 -05:00