Commit Graph

612 Commits

Author SHA1 Message Date
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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2023-07-15 09:51:28 +12:00
Jakub Žádník
ba766de5d1
Refactor path commands (#9687) 2023-07-15 00:04:22 +03:00
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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2023-07-15 06:23:21 +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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2023-07-14 15:20:35 +12:00
Michael Angerman
99329f14a3
remove warning: unused import pipeline (#9675)
Fix a compiler warning caused by this file...

```rust
crates/nu-command/tests/commands/let_.rs
```
2023-07-13 09:12:20 -07:00
WindSoilder
9a6a3a731e
support env and mut assignment with if block and match guard (#9650)
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# Description
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Fixes: https://github.com/nushell/nushell/issues/9595

So we can do the following in nushell:
```nushell
mut a = 3
$a = if 4 == 3 { 10 } else {20}
```
or
```nushell
$env.BUILD_EXT = match 3 { 1 => { 'yes!' }, _ => { 'no!' } }
```

# 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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you're using the standard code style
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---------

Co-authored-by: WindSoilder <windsoilder@DESKTOP-R8GRJ1D.localdomain>
2023-07-13 10:55:41 +02:00
Antoine Stevan
545697c0b2
simplify the test for let core command (#9671)
related to
- follow-up of https://github.com/nushell/nushell/pull/9658
- addressed part of https://github.com/nushell/nushell/issues/8670

# Description
removes useless `cwd` and `pipeline()` from the tests of `let`.

# User-Facing Changes
# Tests + Formatting
# After Submitting
2023-07-12 19:33:25 +02:00
mengsuenyan
026335fff0
Fix cp -u/mv -u when the dst doesn't exist (#9662)
Fixes #9655
2023-07-12 18:12:59 +02:00
JT
ad11e25fc5
allow mut to take pipelines (#9658)
# Description

This extends the syntax fix for `let` (#9589) to `mut` as well.

Example: `mut x = "hello world" | str length; print $x`

closes #9634

# User-Facing Changes

`mut` now joins `let` in being able to be assigned from a pipeline

# Tests + Formatting
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2023-07-12 06:36:34 +12:00
Ayush Singh
ad125abf6a
fixes which showing aliases as built-in nushell commands (#9580)
fixes #8577 

# Description
Currently, using `which` on an alias describes it as a nushell built-in
command:
```bash
> alias foo = print "foo!"                                                                                                                                                                                   > which ls foo --all                                                                                                                                                                                        
╭───┬─────┬──────────────────────────┬──────────╮
│ # │ arg │           path           │ built-in │
├───┼─────┼──────────────────────────┼──────────┤
│ 0 │ ls  │ Nushell built-in command │ true     │
│ 1 │ ls  │ /bin/ls                  │ false    │
│ 2 │ foo │ Nushell built-in command │ true     │
╰───┴─────┴──────────────────────────┴──────────╯
```

This PR fixes the behaviour above to the following:
```bash
> alias foo = print "foo!"
> which ls foo --all
╭───┬─────┬──────────────────────────┬──────────╮
│ # │ arg │           path           │ built-in │
├───┼─────┼──────────────────────────┼──────────┤
│ 0 │ ls  │ Nushell built-in command │ true     │
│ 1 │ ls  │ /bin/ls                  │ false    │
│ 2 │ foo │ Nushell alias            │ false    │
╰───┴─────┴──────────────────────────┴──────────╯
```

# User-Facing Changes
Passing in an alias to `which` will no longer return `Nushell built-in
command`, `true` for `path` and `built-in` respectively.

# Tests + Formatting

# After Submitting
2023-07-08 10:48:42 +02:00
Ian Manske
f38657e6f3
Fix headers command handling of missing values (#9603)
# Description
This fixes the `headers` command handling of missing values (issue
#9602). Previously, each row in the table would have its columns set to
be exactly equal to the first row even if it had less columns than the
first row. This would cause to values magically change their column or
cause panics in other commands if rows ended up having more columns than
values.

# Tests
Added a missing values  test for the `headers` command
2023-07-06 19:54:59 +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
Antoine Stevan
53cd4df806
simplify the nu! tests for last and first commands (#9608)
# Description
in most of the tests for `last` and `first`, we do not need to
- give `cwd` to `nu!`
- use pipeline as the tests are all short pipes
- use `r#" ... "#` as the pipes never contain quotes

this PR removes all these points from the tests for the `last` and
`first` commands.
2023-07-05 12:30:53 +02:00
baehyunsol
227d1d9508
make the behaviours of last and first more consistent (#9582)
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# Description

- fixes #9567 

I have fixed everything mentioned in the issue, and made their help
messages more similar.

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

- Previously, `last` on binary data returned an integer. Now it returns
a binary
- Now, `[] | last` and `[] | first` are both errors.
- Now, `ls | table | first` and `ls | table | last` are both errors.
2023-07-03 10:19:50 -05:00
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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2023-07-03 17:45:10 +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
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
Darren Schroeder
cbb9f8efe4
clean up config by removing legacy options (#9496)
# Description

This PR cleans up the deprecated legacy config options that were
deprecated in nushell version 0.72.0. These are the config points that
were in the root of the config but also duplicated in the nested
structures. For instance `use_ls_colors` was in the root of the config
and also in the `ls.use_ls_colors` nested structure. This was originally
done to preserve backwards compatibility when nested structures were
introduced in the config file.

Here's a list of the legacy config points that were removed.

- `use_ls_colors` - previously replaced with `ls.use_ls_colors`
- `rm_always_trash` - previously replaced with `rm.always_trash`
- `history_file_format` - previously replaced with `history.file_format`
- `sync_history_on_enter` - previously replaced with
`history.sync_on_enter`
- `max_history_size` - previously replaced with `history.max_size`
- `quick_completions` - previously replaced with `completions.quick`
- `partial_completions` - previously replaced with `completions.partial`
- `max_external_completion_results` - previously replaced with
`completions.external.max_results`
- `completion_algorithm` - previously replaced with
`completions.algorithm`
- `case_sensitive_completions` - previously replaced with
`completions.case_sensitive`
- `enable_external_completion` - previously replaced with
`completions.external.enable`
- `external_completer` - previously replaced with
`completions.external.completer`
- `table_mode` - previously replaced with `table.mode`
- `table_index_mode` - previously replaced with `table.index_mode`
- `table_trim` - previously replaced with `table.trim`
- `show_clickable_links_in_ls` - previously replaced with
`ls.clickable_links`
- `cd_with_abbreviations` - previously replaced with `cd.abbreviations`
- `filesize_metric` - previously replaced with `filesize.metric`
- `filesize_format` - previously replaced with `filesize.format`
- `cursor_shape_vi_insert` - previously replaced with
`cursor_shape.vi_insert`
- `cursor_shape_vi_normal` - previously replaced with
`cursor_shape.vi_normal`
- `cursor_shape_emacs` - previously replaced with `cursor_shape.emacs`

Removes log_level from the config since it doesn't do anything any
longer. We moved log-level to a nushell parameter some time ago.

Renames history_isolation to isolation in the config.nu for consistency.

Fixes a couple bugs where values weren't being set in the "//
Reconstruct" sections (history_isolation, table_show_empty).

Reorganized/Moved things around a tiny bit and added a few comments.

# User-Facing Changes

history.histor_isolation is now history.isolation.
If anyone is still using the legacy config points, deprecated since
0.72.0 2022-11-29, their config will break.

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

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> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
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2023-06-23 06:17:10 -05:00
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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2023-06-21 09:33:01 +12:00
Stefan Holderbach
1be4eaeae3
Revert #8395 "Treat empty pipelines as pass-through" (#9472)
In my view we should revert nushell/nushell#8395 for now

## Potentially inconsistent application of semantic change
#8395 (1d5e7b441b) was loosening the type
coercion rules significantly, to let missing data / void returns that
were either expressed by `PipelineData::Empty` or the `Value::nothing`
be accept by specifically those commands/operations that made use of
`PipelineData::into_iter_strict()`. This could apply the new rules
inconsistently.

## Turning explicit failures into silent continuations
Furthermore the effect of this breaking change to the missing data
semantics could make previous errors into silent failures.
This could either just reduce the effectiveness of teaching error
messages in interactive use:

### Contrived example before
```bash
> cd . | where blah
Error: nu:🐚:only_supports_this_input_type

  × Input type not supported.
   ╭─[entry #13:1:1]
 1 │ cd . | where blah
   ·        ──┬──┬
   ·          │  ╰── input type: null
   ·          ╰── only list, binary, raw data or range input data is supported
   ╰────
```
### ...after, with #8395
```bash
> cd . | where blah
╭────────────╮
│ empty list │
╰────────────╯
```

In rare cases people could already try to rely on catching an error of a
downstream command to actually deal with the missing data, so it would
be a breaking change for their existing code.

## Problem with `PipelineData::into_iter_strict()`

Maybe this makes `_strict` a bit of a misnomer for this particular
iterator construction.
Further we did not actively test the `PipelineData::empty` branch before

![grafik](https://github.com/nushell/nushell/assets/15833959/c377bf1d-d47c-4c25-a342-9a348539f242)

## Parsimonious solution exists

For the motivating issue https://github.com/nushell/nushell/issues/8393
there already exists a fix that makes `ls` more consistent with the type
system by returning an empty `Value::List`
https://github.com/nushell/nushell/pull/8439
2023-06-20 20:27:18 +12:00
Maxim Zhiburt
2ec1364925
nu-table/ Fix indexing issue for table --expand (#9484)
close #9481

---------

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
2023-06-20 20:27:00 +12:00
nibon7
69bf43ef56
Apply nightly clippy fixes (#9482)
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# Description
This PR fixes the following nightly clippy warnings.

```
warning: you should consider adding a `Default` implementation for `HjsonFormatter<'a>`
   --> crates/nu-json/src/ser.rs:700:5
    |
700 | /     pub fn new() -> Self {
701 | |         HjsonFormatter::with_indent(b"  ")
702 | |     }
    | |_____^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
    = note: `#[warn(clippy::new_without_default)]` on by default
help: try adding this
    |
698 + impl<'a> Default for HjsonFormatter<'a> {
699 +     fn default() -> Self {
700 +         Self::new()
701 +     }
702 + }
    |

warning: `nu-json` (lib) generated 1 warning
warning: private item shadows public glob re-export
  --> crates/nu-command/src/strings/mod.rs:8:1
   |
8  | mod str_;
   | ^^^^^^^^^
   |
note: the name `str_` in the type namespace is supposed to be publicly re-exported here
  --> crates/nu-command/src/strings/mod.rs:17:9
   |
17 | pub use str_::*;
   |         ^^^^^^^
note: but the private item here shadows it
  --> crates/nu-command/src/strings/mod.rs:8:1
   |
8  | mod str_;
   | ^^^^^^^^^
   = note: `#[warn(hidden_glob_reexports)]` on by default

warning: incorrect NaN comparison, NaN cannot be directly compared to itself
   --> crates/nu-command/src/formats/to/nuon.rs:186:20
    |
186 |                 && val != &f64::NAN
    |                    ^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(invalid_nan_comparisons)]` on by default
help: use `f32::is_nan()` or `f64::is_nan()` instead
    |
186 -                 && val != &f64::NAN
186 +                 && !val.is_nan()
    |

warning: `nu-command` (lib) generated 2 warnings (run `cargo clippy --fix --lib -p nu-command` to apply 1 suggestion)
   Compiling nu v0.81.1 (/data/source/nushell)
warning: this expression creates a reference which is immediately dereferenced by the compiler
   --> crates/nu-command/tests/commands/rm.rs:392:27
    |
392 |             dir_to_clean: &test_dir,
    |                           ^^^^^^^^^ help: change this to: `test_dir`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
    = note: `#[warn(clippy::needless_borrow)]` on by default

warning: `nu-command` (test "main") generated 1 warning (run `cargo clippy --fix --test "main"` to apply 1 suggestion)
warning: `nu-command` (lib test) generated 2 warnings (2 duplicates)
warning: `nu-json` (lib test) generated 1 warning (1 duplicate)
    Finished dev [unoptimized + debuginfo] target(s) in 3.89s

```

# User-Facing Changes
N/A

# Tests + Formatting
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2023-06-20 10:17:33 +02:00
JT
1d5e7b441b
Treat empty pipelines as pass-through (#8395)
# Description

This allows empty pipelines to pass their emptiness through a filter.
This helps fix issues like trying to run a filter on an `ls` in an empty
directory. It also feels a bit more reasonable that a filter filters
what is *there* but doesn't require something to be there.

fixes #8393

# User-Facing Changes

No breaking changes (that I know of). Should allow filtering to be a
little less surprising with emptiness.

# 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` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.

---------

Co-authored-by: amtoine <stevan.antoine@gmail.com>
2023-06-18 11:40:18 +02:00
Michael Albers
c12b211075
Fix missing file names from rm errors (#9120)
# Description
Fixes a small bug with `rm` where names of files which couldn't be
deleted due to error were not printed.

Fixes https://github.com/nushell/nushell/issues/9004

# User-Facing Changes
Slightly different error message than previously. Nothing significant,
though.

The new error message looks like this
```
~/Projects/rust/nushell> rm /proc/1/mem                                                                                                                                                            05/06/2023 01:13:23 PM
Error: nu:🐚:remove_not_possible

  × Remove not possible
   ╭─[entry #3:1:1]
 1 │ rm /proc/1/mem
   ·    ─────┬─────
   ·         ╰── Could not delete /proc/1/mem: Operation not permitted (os error 1)
   ╰────

```

or when using a glob (only showing a single entry for brevity)

```
Error: nu:🐚:remove_not_possible

  × Remove not possible
   ╭─[entry #2:1:1]
 1 │ rm --recursive --force --verbose /proc/1/*
   ·                                  ────┬────
   ·                                      ╰── Could not delete /proc/1/comm: Operation not permitted (os error 1)
   ╰────
```

# Tests + Formatting
No new unit tests were added for this change as it is pretty difficult
to test this particular case. However, manual testing was run with the
following commands

```
rm /proc/1/mem
rm --recursive --force --verbose /proc/1/*
```

# After Submitting
N/A
2023-06-18 10:00:12 +02:00
Stefan Kupresak
67b1dcae44
Fix a panic bug in platform ansi logic (Closes #9448) (#9458)
Fixes #9448 

# Description
Attempts to fix a bug from the linked issue.

# User-Facing Changes
 - The editor doesn't crash on wrong commands
# Tests + Formatting

Tests cover my 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
2023-06-16 11:40:03 -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
Darren Schroeder
2b181bf69c
update ini dependency (#9426)
# Description

This PR updates the ini dependency.

# 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
- `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
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
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2023-06-13 13:33:00 -05:00
Maxim Zhiburt
85fbacb197
nu-table: Bump tabled to 0.12.1 (#9341)
close #9335 

I am not sure whether the fix was better to be delived as a minor bump
but it is what is is.

Could you @fdncred test it somehow?
I did it by checking out back the the original commit before the PR
refered in the issue.

---------

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-06-11 17:33:54 -05:00
Amirhossein Akhlaghpour
73921f4bd7
chore: rename uid to user column in ls --long (#9407)
Fixes: #9389
2023-06-11 18:02:08 +02:00
Astrick
e9508b578a
Fix find puts extra cols into record (#9397)
# Description
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guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.

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Trying to fix #9394. 

The problem with PR #9159 seems to be when searching for multiple terms,
each term is checked against the original values. It outputs a new value
for each such check, thus introducing replication for each search term.
As a result, it works fine with num of search term = 1.
2023-06-10 16:57:26 -05:00
WindSoilder
5afd74f0b9
don't allow save command to save both stdout and stderr to the same file (#9368)
# Description
It's not a good idea to save `stdout` and `stderr` to the same file from
`save` command directly.

Because it saves `stdout` and `stderr` in different thread, which leads
to in-consistent output. As replace, we can use `o+e` redirection to fix
the issue

# User-Facing Changes
```
❯ do -i { "aa" } | save foo.txt -e foo.txt
Error:   × input and stderr input to same file
   ╭─[entry #3:1:1]
 1 │ do -i { "aa" } | save foo.txt -e foo.txt
   ·                                  ───┬───
   ·                                     ╰── can't save both input and stderr input to the same file
   ╰────
  help: you should use `o+e> file` instead
```

# Tests + Formatting
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2023-06-10 10:09:19 +02:00
WindSoilder
1edd3e7c3b
add http options command (#9365)
# Description
closes: #9344

Different to other http commands, `http options` command always returns
header, according to
[MDN](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/OPTIONS),
the response information is included in header.

# 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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2023-06-09 08:00:40 -05:00
Gurpreet Singh
15a15c123e
Add a check for empty params for url join (#9356)
# Description
<!--
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guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.

Description of your pull request goes here. **Provide examples and/or
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Fix for #9347 

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

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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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- [x] Add unit tests
- [x] Run all cargo tests + fmt commands

# After Submitting
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2023-06-07 19:08:21 +02:00
solodov
55689ddb50
use "search_result" style to colorize matching strings (fixes #9275) (#9326)
This change introduces new `search_result` style supported in the color
config. The change also removes obsolete check for `config.ls_colors`
for computing the style. `config.ls_colors` has been removed last year,
so this removes the reference to the obsolete flag, along with a cleanup
that removes all the code that used to rely on ls_colors for
highlighting search results.


# Description
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# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
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# 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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2023-06-01 15:51:18 -05:00
WindSoilder
bfe7133e7c
make insert, update, upsert support lazy records (#9323)
# Description
Fixes: #9165
It's because `sys` returns a lazy record, and `insert`, `update`,
`upsert` can't operate on lazy record yet.

# User-Facing Changes

# Tests + Formatting
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clippy::needless_collect -A clippy::result_large_err` to check that
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# After Submitting
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2023-05-31 06:27:55 -05:00
Access
e5ff72120a
check if is homedir first when rm (#9117)
I don't want to rm my home again.. sadly..


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

Description of your pull request goes here. **Provide examples and/or
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check if there is unique argument

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

user will not easily rm their home

# 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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> 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.
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---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-05-25 09:45:50 -05:00
Tilen Gimpelj
60041879f3
throw an error instead of a panic if no input is provided to inspect (#9259)
# Description

This is a small PR to fix Nu crashing when calling `inspect` with no
data piped in(#9255).


# User-Facing Changes

none.
2023-05-22 13:54:04 -05:00
pwygab
a6e455efc3
upserting data of a cellpath that doesn't exist into a record creates the cellpath (#9257)
# Description
Fixes #9254.

# User-Facing Changes
upserting data of a cellpath that doesn't exist into a record now
creates the cellpath.

# Tests + Formatting

```
~/CodingProjects/nushell> mut a = {}                                                                       
~/CodingProjects/nushell> $a.b.c = 99                                                                            
~/CodingProjects/nushell> $a                                                                                    
╭───┬────────────╮
│   │ ╭───┬────╮ │
│ b │ │ c │ 99 │ │
│   │ ╰───┴────╯ │
╰───┴────────────╯
```

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

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> **Note**
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> ```
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2023-05-22 18:51:07 +02:00
WindSoilder
5a34671343
add -u flag to cp, mv command (#9214)
# Description
Closes: #7853

I found that I want this feature too...

So I take over it, sorry for that @VincenzoCarlino 

# User-Facing Changes

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

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> ```
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# After Submitting
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2023-05-20 09:48:57 -07:00
Jakub Žádník
429c4332b1
Make aliased call not look up predeclarations (#9244) 2023-05-20 00:46:22 +03:00
nicolb2305
acd7c98c39
Removes unnecessary cwd and pipeline from various tests (#9202)
# 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.
-->
Cleans up various tests that unnecessarily use the `cwd` argument of
`nu!`, and the `pipeline` function for single line commands. Also
replaces some unnecessary raw strings with normal strings. Part of
#8670.

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
None

# 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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- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
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> ```
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All checks pass

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
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2023-05-17 18:55:26 -05:00
Reilly Wood
9ce61dc677
Change group-by to accept cell paths (#9020)
Closes #9003.

This PR changes `group-by` so that its optional argument is interpreted
as a cell path. In turn, this lets users use `?` to ignore rows that are
missing the column they wish to group on. For example:

```
> [{foo: 123}, {foo: 234}, {bar: 345}] | group-by foo
Error: nu:🐚:column_not_found

  × Cannot find column
   ╭─[entry #3:1:1]
 1 │ [{foo: 123}, {foo: 234}, {bar: 345}] | group-by foo
   ·                          ─────┬────             ─┬─
   ·                               │                  ╰── cannot find column 'foo'
   ·                               ╰── value originates here
   ╰────

> [{foo: 123}, {foo: 234}, {bar: 345}] | group-by foo?
╭─────┬───────────────╮
│ 123 │ [table 1 row] │
│ 234 │ [table 1 row] │
╰─────┴───────────────╯
```

~~This removes the ability to pass `group-by` a closure or block (I
wasn't able to figure out how to make the 2 features coexist), and so it
is a breaking change. I think this is OK; I didn't even know `group-by`
could accept a closure or block because there was no example for that
functionality.~~
2023-05-17 18:34:44 -05:00
WindSoilder
b150f9f5d8
Avoid blocking when o+e> redirects too much stderr message (#8784)
# Description

Fixes: #8565

Here is another pr #7240 tried to address the issue, but it works in a
wrong way.

After this change `o+e>` won't redirect all stdout message then stderr
message and it works more like how bash does.

# User-Facing Changes

For the given python code:
```python
# test.py
import sys

print('aa'*300, flush=True)
print('bb'*999999, file=sys.stderr, flush=True)
print('cc'*300, flush=True)
```

Running `python test.py out+err> a.txt` shoudn't hang nushell, and
`a.txt` keeps output in the same order

## About the change
The core idea is that when doing lite-parsing, introduce a new variant
`LiteElement::SameTargetRedirection` if we meet `out+err>` redirection
token(which is generated by lex function),

During converting from lite block to block,
LiteElement::SameTargetRedirection will be converted to
PipelineElement::SameTargetRedirection.

Then in the block eval process, if we get
PipelineElement::SameTargetRedirection, we'll invoke `run-external` with
`--redirect-combine` flag, then pipe the result into save command

## What happened internally?

Take the following command as example:
`^ls o+e> log.txt`

lex parsing result(`Tokens`) are not changed, but `LiteBlock` and
`Block` is changed after this pr.
### LiteBlock before
```rust
LiteBlock {
    block: [
        LitePipeline { commands: [
            Command(None, LiteCommand { comments: [], parts: [Span { start: 39041, end: 39044 }] }),
            // actually the span of first Redirection is wrong too..
            Redirection(Span { start: 39058, end: 39062 }, StdoutAndStderr, LiteCommand { comments: [], parts: [Span { start: 39050, end: 39057 }] }),
        ]
    }]
}
```
### LiteBlock after
```rust
LiteBlock { 
    block: [
        LitePipeline {
            commands: [
                SameTargetRedirection {
                    cmd: (None, LiteCommand { comments: [], parts: [Span { start: 147945, end: 147948}]}),
                    redirection: (Span { start: 147949, end: 147957 }, LiteCommand { comments: [], parts: [Span { start: 147958, end: 147965 }]})
                }
            ]
        }
    ]
}
```
### Block before
```rust
Pipeline {
    elements: [
        Expression(None, Expression {
            expr: ExternalCall(Expression { expr: String("ls"), span: Span { start: 39042, end: 39044 }, ty: String, custom_completion: None }, [], false),
            span: Span { start: 39041, end: 39044 },
            ty: Any, custom_completion: None 
        }),
        Redirection(Span { start: 39058, end: 39062 }, StdoutAndStderr, Expression { expr: String("out.txt"), span: Span { start: 39050, end: 39057 }, ty: String, custom_completion: None })] }
```
### Block after
```rust
Pipeline {
    elements: [
        SameTargetRedirection { 
            cmd: (None, Expression {
                expr: ExternalCall(Expression { expr: String("ls"), span: Span { start: 147946, end: 147948 }, ty: String, custom_completion: None}, [], false),
                span: Span { start: 147945, end: 147948},
                ty: Any, custom_completion: None
            }),
            redirection: (Span { start: 147949, end: 147957}, Expression {expr: String("log.txt"), span: Span { start: 147958, end: 147965 },ty: String,custom_completion: None}
        }
    ]
}
```

# Tests + Formatting

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

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

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-utils/standard_library/tests.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.
2023-05-17 17:47:03 -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.

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

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> from `nushell` you can also use the `toolkit` as follows
> ```bash
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> ```
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# After Submitting
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documentation](https://github.com/nushell/nushell.github.io) after the
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2023-05-11 13:59:56 -05:00
juanPabloMiceli
e735d0c561
Fix find -v command on tables (issue #9043) (#9159)
# Description
This PR fixes issue #9043 where find -v was returning empty tables
and/or wrong output.
It also refactors some big code chunks with repetitions into it's own
functions.

# User-Facing Changes

# Tests + Formatting
Unit tests added for asserting changes.

# After Submitting
2023-05-11 13:39:21 -05:00
juanPabloMiceli
7fb48b9a2f
Fix negative precision round with ints (issue #9049) (#9073)
# Description
Before this PR, `math round` ignores the input if it's an `int`. This
results in the following behaviour:
```
> 123 | math round --precision -1
123
```
When the correct result is 120.

Now `int values` are converted to `float values` before actually
rounding up the number in order to take advantage of the float
implementation.

Fixes #9049.
2023-05-03 23:07:32 +02:00
Jelle Besseling
4ca47258a0
Add --redirect-combine option to run-external (#8918)
# Description

Add option that combines both output streams to the `run-external`
command.

This allows you to do something like this:

```nushell
let res = do -i { run-external --redirect-combine <command that prints to stdout and stderr> } | complete

if $res.exit_code != 0 {
  # Only print output when command has failed.
  print "The command has failed, these are the logs:"
  print $res.stdout
}
```

# User-Facing Changes

No breaking changes, just an extra option.

# Tests + Formatting

Added a test that checks the new option

# 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: Jelle Besseling <jelle@bigbridge.nl>
2023-04-28 07:55:48 -05:00
Reilly Wood
3076378373
Slim down tests (#9021)
This PR just tidies up some tests by removing unused code:

1. If the filesystem is not touched, don't use the filesystem
playground/sandbox
2. If the filesystem is not touched, don't specify the `cwd`
3. If the command is short, don't bother wrapping it in `pipeline()`
4. If the command doesn't have quotes, don't bother with a `r#"..."#`
raw string

Part of #8670.
2023-04-28 13:25:44 +02:00
Jelle Besseling
44493dac51
Add extern def which allows raw arguments (#8956)
# Description

Extends the `extern` syntax to allow commands that accept raw arguments.
This is mainly added to allow wrapper type scripts for external
commands.

This is an example on how this can be used:

```nushell
extern foo [...rest] { 
  print ($rest | str join ',' ) 
}
foo --bar baz -- -q -u -x
# => --bar,baz,--,-q,-u,-x
```

(It's only possible to accept a single ...varargs argument in the
signature)

# User-Facing Changes

No breaking changes, just extra possibilities.

# Tests + Formatting

Added a test for this new behaviour and ran the toolkit pr checker

# After Submitting

This is advanced functionality but it should be documented, I will open
a new PR on the book for that

Co-authored-by: Jelle Besseling <jelle@bigbridge.nl>
2023-04-28 09:06:43 +02:00
TrMen
ecc820a8c1
Fix unexpected flattening of data by par-each (Issue #8497) (#9007)
# Description
Previously, `par-each` acted like a `flatmap`: first mapping the data,
then applying a `flatten`. This is unlike `each`, which just maps the
data. Now `par-each` works like `each` in this regard, leaving nested
data unflattened.

Fixes #8497

# User-Facing Changes
Previously:
`[1 2 3] | par-each {|e| [$e, $e] }` --> `[1,1,2,2,3,3]` 
Now:
`[1 2 3] | par-each {|e| [$e, $e] }` --> `[[1,1],[2,2],[3,3]]`

# Tests
This adds one test that verifies the lack of flattening for `par-each`.
2023-04-26 23:27:27 +02:00
Maxim Zhiburt
8d8b011702
Bump tabled dependency to 0.11 (#8922)
close? #8060

Quite a bit of refactoring took place.
I believe a few improvements to collapse/expand were made.

I've tried to track any performance regressions and seems like it is
fine.

I've noticed something different now with default configuration path or
something in this regard?
So I might missed something while testing because of this.

Requires some oversight.

---------

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
2023-04-26 13:56:10 -05:00
JT
d00038eb4b
Reuse the cached parse results of parsed files (#8949)
# Description

This does a lookup in the cache of parsed files to see if a span can be
found for a file that was previously loaded with the same contents, then
uses that span to find the parsed block for that file. The end result
should, in theory, be identical but doesn't require any reparsing or
creating new blocks/new definitions that aren't needed.

This drops the sg.nu benchmark from:
```
╭───┬───────────────────╮
│ 0 │ 280ms 606µs 208ns │
│ 1 │ 282ms 654µs 416ns │
│ 2 │ 252ms 640µs 541ns │
│ 3 │  250ms 940µs 41ns │
│ 4 │ 241ms 216µs 375ns │
│ 5 │ 257ms 310µs 583ns │
│ 6 │ 196ms 739µs 416ns │
╰───┴───────────────────╯
```

to:
```
╭───┬───────────────────╮
│ 0 │ 118ms 698µs 125ns │
│ 1 │       121ms 327µs │
│ 2 │ 121ms 873µs 500ns │
│ 3 │  124ms 94µs 708ns │
│ 4 │ 113ms 733µs 291ns │
│ 5 │ 108ms 663µs 125ns │
│ 6 │  63ms 482µs 625ns │
╰───┴───────────────────╯
```

I was hoping to also see some startup time improvements, but I didn't
notice much there.

# 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` 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.
-->
2023-04-22 07:00:33 +12:00
mike
fb72da0e82
unify the *-BuiltinVar parser errors (#8944)
# Description

this pr condenses `MutBuiltinVar`, `LetBuiltinVar` and `ConstBuiltinVar`
into one error:
```nu
Error: nu::parser::name_is_builtin_var

  × `in` used as variable name.
   ╭─[entry #69:1:1]
 1 │ let in = 420
   ·     ─┬
   ·      ╰── already a builtin variable
   ╰────
  help: 'in' is the name of a builtin Nushell variable and cannot be used
        as a variable name
```

it also fixes this case which was previously not handled
```nu
let $nu = 420 # this variable would have been 'lost'
```
2023-04-20 19:44:31 +02:00
Amirhossein Akhlaghpour
fff4de5c44
Apply continue to each (#8889)
# Description
Fixes #8878
Add continue command on each and added new tests too .
2023-04-15 17:11:02 +12:00
WindSoilder
9b35d59023
Update crossterm version to 0.26 (#8623)
# Description

This pr is a companion to https://github.com/nushell/reedline/pull/560

Fortunally, we don't need to change too much nushell code.

## Additional note about lscolor dependency
https://github.com/sharkdp/lscolors/pull/58~~
lscolor is using 0.26 for now
2023-04-14 22:14:57 +02:00
JT
46dba8853a
Revert numberlike parsing restriction (#8845)
# Description

This effectively reverts #8635. We shipped this change with 0.78 and
received many comments/issues related to this restriction feeling like a
step backward.

fixes: #8844 
(and probably other issues)

# User-Facing Changes

Returns numbers and number-like values to being allowed to be bare
words. Examples: `3*`, `1fb43`, `4,5`, and related.

# Tests + Formatting

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

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

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass
- `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.
2023-04-12 05:21:31 +12:00
JT
9e3d6c3bfd
Only add the std lib files once (#8830)
# Description

We were seeing duplicate entries for the std lib files, and this PR
addresses that. Each file should now only be added once.

Note: they are still parsed twice because it's hard to recover the
module from the output of `parse` but a bit of clever hacking in a
future PR might be able to do that.

# 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` 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.
2023-04-10 08:55:47 +12:00
Harshal Chaudhari
35e8420780
fix(nu-command/tests): further remove unnecessary pipeline() and cwd() (#8793)
# Description

This PR further fixes tests as part of #8670 

# User-Facing Changes

None

# Tests + Formatting

None

# After Submitting

None

---------

Signed-off-by: Harshal Chaudhari <harshal.chaudhary@gmail.com>
Co-authored-by: Reilly Wood <reilly.wood@icloud.com>
2023-04-07 14:09:55 -07:00
Jakub Žádník
1b677f167e
Remove old alias implementation (#8797) 2023-04-07 21:09:38 +03:00
WMR
4fda6d7eaa
Add regex separators for split row/list/column (#8707)
# Description

Verified on discord with maintainer

Change adds regex separators in split rows/column/list. The primary
motivating reason was to make it easier to split on separators with
unbounded whitespace without requiring a lot of trim jiggery. But,
secondary motivation is the same as the set of all motivations for
adding split regex features to most languages.

# User-Facing Changes

Adds -r option to split rows/column/list.

# Tests + Formatting

Ran tests, however tests.nu fails with unrelated errors:

```
~/src/nushell> cargo run -- crates/nu-utils/standard_library/tests.nu                                                                                                                                                          04/02/2023 02:07:25 AM
    Finished dev [unoptimized + debuginfo] target(s) in 0.24s
     Running `target/debug/nu crates/nu-utils/standard_library/tests.nu`
INF|2023-04-02T02:07:27.060|Running tests in test_asserts
INF|2023-04-02T02:07:27.141|Running tests in test_dirs
Error:
  × list is just pwd after initialization

INF|2023-04-02T02:07:27.167|Running tests in test_logger
INF|2023-04-02T02:07:27.286|Running tests in test_std
Error:
  × some tests did not pass (see complete errors above):
  │
  │       test_asserts test_assert
  │       test_asserts test_assert_equal
  │       test_asserts test_assert_error
  │       test_asserts test_assert_greater
  │       test_asserts test_assert_greater_or_equal
  │       test_asserts test_assert_length
  │       test_asserts test_assert_less
  │       test_asserts test_assert_less_or_equal
  │       test_asserts test_assert_not_equal
  │     ⨯ test_dirs test_dirs_command
  │       test_logger test_critical
  │       test_logger test_debug
  │       test_logger test_error
  │       test_logger test_info
  │       test_logger test_warning
  │       test_std test_path_add
  │
```

Upon investigating seeing this difference:

```
╭───┬─────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ 0 │ /var/folders/1f/ltbr1m8s5s1811k6n1rhpc0r0000gn/T/test_dirs_c1ed89d6-19f7-47c7-9e1f-74c39f3623b5         │
│ 1 │ /private/var/folders/1f/ltbr1m8s5s1811k6n1rhpc0r0000gn/T/test_dirs_c1ed89d6-19f7-47c7-9e1f-74c39f3623b5 │
╰───┴─────────────────────────────────────────────────────────────────────────────────────────────────────────╯
```

This seems unrelated to my changes, but can investigate further if
desired.

# 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: Robert Waugh <robert@waugh.io>
2023-04-07 06:46:11 -05:00
Jakub Žádník
e54b867e8e
Remove parser keywords label from commands that do not need it (#8780) 2023-04-07 01:12:21 +03:00
Jakub Žádník
c12b4b4af7
Aliasing math expression shows error earlier (#8779) 2023-04-07 00:40:53 +03:00
Jakub Žádník
87ddba0193
Allow multi-word aliases (#8777) 2023-04-07 00:05:09 +03:00
WindSoilder
54a18991ab
Loops return external stream when external command failed. (#8646) 2023-04-05 20:38:04 +03:00
Thomas Coratger
01e5ba01f6
Correction bug multiple dots mkdir and touch (#8486) 2023-04-05 20:22:56 +03:00
Harshal Chaudhari
3fab427383
Fix(tests/nu-command): remove unnecessary cwd() and pipeline(), etc (#8711)
# Description

This PR aims to cover the tests under nu-command as part of this issue
#8670 to clean up any unnecessary wrapping funcs like `cwd(".")` or
`pipeline()`, etc.

This PR is still WIP and opening as draft to get first impressions and
feedback on a few tests before I go on changing more.


# User-Facing Changes

None

# Tests + Formatting

None

# After Submitting

None

---------

Signed-off-by: Harshal Chaudhari <harshal.chaudhary@gmail.com>
Co-authored-by: Reilly Wood <reilly.wood@icloud.com>
2023-04-02 08:25:05 -07:00
JT
1817d5e01e
prevent redefining fields in a record (#8705)
# Description

Prevents redefining fields in a record, for example `{a: 1, a: 2}` would
now error.

fixes https://github.com/nushell/nushell/issues/8699

# User-Facing Changes

Is technically a breaking change. If you relied on this behaviour to
give you the last value, your code will now error.

# Tests + Formatting

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

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

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-utils/standard_library/tests.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.
2023-04-02 06:09:33 +12:00
Reilly Wood
83ddf0ebe2
Make optional cell paths work with reject (#8697)
This PR makes `?` work with `reject`. For example:

```bash
> {} | reject foo
Error: nu:🐚:column_not_found

  × Cannot find column
   ╭─[entry #2:1:1]
 1 │ {} | reject foo
   ·      ───┬── ─┬─
   ·         │    ╰── cannot find column 'foo'
   ·         ╰── value originates here
   ╰────

> {} | reject foo?
╭──────────────╮
│ empty record │
╰──────────────╯
```

This was prompted by [a user
question](https://discord.com/channels/601130461678272522/614593951969574961/1091466428546306078).
I would like to get this in for 0.78, I think it's low-risk and I want
the `?` feature to be as polished as possible for its debut.
2023-03-31 16:40:19 -07:00
Stefan Holderbach
3bf5999ef4
Remove proptests for nuon writing/parsing (#8688)
# Description

The two tests `to_nuon_from_nuon` and `to_nuon_from_nuon_string` were
taking multiple seconds and have since been superseded by more explicit
unit tests. Compared to the time cost for devs and CI they seldomly
returned explicit problems. One failure only popped up after months, as
a sampled failure (https://github.com/nushell/nushell/pull/7564).


# User-Facing Changes

none

# Tests + Formatting

Fuzzing should move to a separate worker and be removed from the main
test suite.
See #8575 for experimentation around the impact on our test coverage.
2023-03-31 17:15:16 +02:00
JT
3db0aed9f7
Add rest and ignore-rest patterns (#8681)
# Description

Adds two more patterns when working with lists:

```
[1, ..$remainder]
```
and
```
[1, ..]
```
The first one collects the remaining items and assigns them into the
variable. The second one ignores any remaining values.

# User-Facing Changes

Adds more capability to list pattern matching.

# Tests + Formatting

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

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

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-utils/standard_library/tests.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.
2023-03-31 11:08:53 +13:00
Benjamin Lee
53beba7acc
Support passing an empty list to sort, uniq, sort-by, and uniq-by (issue #5957) (#8669)
# Description

Currently, all four of these commands return a (rather-confusing)
spanless error when passed an empty list:

```
> [] | sort
Error: 
  × no values to work with
  help: no values to work with
```

This PR changes these commands to always output `[]` if the input is
`[]`.

```
> [] | sort
╭────────────╮
│ empty list │
╰────────────╯
> [] | uniq-by foo
╭────────────╮
│ empty list │
╰────────────╯
```

I'm not sure what the original logic was here, but in the case of `sort`
and `uniq`, I think the current behavior is straightforwardly wrong.

`sort-by` and `uniq-by` are a bit more complicated, since they currently
try to perform some validation that the specified column name is present
in the input (see #8667 for problems with this validation, where a
possible outcome is removing the validation entirely). When passed `[]`,
it's not possible to do any validation because there are no records.
This opens up the possibility for situations like the following:

```
> [[foo]; [5] [6]] | where foo < 3 | sort-by bar
╭────────────╮
│ empty list │
╰────────────╯
```

I think there's a strong argument that `[]` is the best output for these
commands as well, since it makes pipelines like `$table | filter
$condition | sort-by $column` more predictable. Currently, this pipeline
will throw an error if `filter` evaluates to `[]`, but work fine
otherwise. This makes it difficult to write reliable code, especially
since users are not likely to encounter the `filter -> []` case in
testing (issue #5957). The only workaround is to insert manual checks
for an empty result. IMO, this is significantly worse than the "you can
typo a column name without getting an error" problem shown above.

Other commands that take column arguments (`get`, `select`, `rename`,
etc) already have `[] -> []`, so there's existing precedent for this
behavior.

The core question here is "what columns does `[]` have"? The current
behavior of `sort-by` is "no columns", while the current behavior of
`select` is "all possible columns". Both answers lead to accepting some
likely-buggy code without throwing on error, but in order to do better
here we would need something like `Value::Table` that tracks columns on
empty tables.

If other people disagree with this logic, I'm happy to split out the
`sort-by` and `uniq-by` changes into another PR.

# User-Facing Changes

`sort`, `uniq`, `sort-by`, and `uniq-by` now return `[]` instead of
throwing an error when input is `[]`.

# 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.

The existing behavior was not documented, and the new behavior is what
you would expect by default, so I don't think we need to update
documentation.

---------

Co-authored-by: Reilly Wood <reilly.wood@icloud.com>
2023-03-29 19:55:38 -07:00
Reilly Wood
995603b08c
Fix record-to-JSON conversion for HTTP commands (#8663)
This PR fixes a bug introduced in
https://github.com/nushell/nushell/pull/8571.

We were accidentally converting a `Result<Value, ShellError>` to JSON
instead of converting a `Value`. The upshot was that we were sending
JSON like `{"Ok":{"foo":"bar"}}` instead of `{"foo":"bar"}`.

This was an easy bug to miss, because `ureq::send_json()` accepts any
`impl serde::Serialize`. I've added a test to prevent regression.
2023-03-29 11:55:51 -07:00
JT
97e7d550c8
move 'str substring' to only use ranges (#8660)
# Description

This removes all the old style of quasi-ranges before we had full range
support from `str substring`. Functionality should otherwise work, but
only with the official range syntax.

# User-Facing Changes

Removes the array and string forms of ranges from `str substring`.
Leaves only the official range support for range values.

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-29 20:01:42 +13:00
Reilly Wood
da8cb14f8b
Fix select on empty lists (#8651)
This PR fixes `select` when given an empty list; it used to return
`null` when given an empty list. I also cleaned up other `select` tests
while I was in the area.

### Before:

```
> [] | select a | to nuon
null
```

### After:

```
> [] | select a | to nuon
[]
```

It looks like the previous behaviour was accidentally introduced by
[this PR](https://github.com/nushell/nushell/pull/7639).
2023-03-28 12:40:29 -07:00
JT
90b65018b6
Require that values that look like numbers parse as numberlike (#8635)
# Description

Require that any value that looks like it might be a number (starts with
a digit, or a '-' + digit, or a '+' + digits, or a special form float
like `-inf`, `inf`, or `NaN`) must now be treated as a number-like
value. Number-like syntax can only parse into number-like values.
Number-like values include: durations, ints, floats, ranges, filesizes,
binary data, etc.

# User-Facing Changes

BREAKING CHANGE
BREAKING CHANGE
BREAKING CHANGE
BREAKING CHANGE
BREAKING CHANGE
BREAKING CHANGE
BREAKING CHANGE
BREAKING CHANGE

Just making sure we see this for release notes 😅 

This breaks any and all numberlike values that were treated as strings
before. Example, we used to allow `3,` as a bare word. Anything like
this would now require quotes or backticks to be treated as a string or
bare word, respectively.

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-28 19:31:38 +13:00
JT
7ec5f2f2eb
Add or-patterns, fix var binding scope (#8633)
# Description

Adds `|` patterns to `match`, allowing you to try multiple patterns for
the same case.

Example:

```
match {b: 1} { {a: $b} | {b: $b} => { print $b } }
```

Variables that don't bind are set to `$nothing` so that they can be
later checked.

This PR also:
fixes #8631 

Creates a set of integration tests for pattern matching also

# User-Facing Changes

Adds `|` to `match`. Fixes variable binding scope. 
# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-27 11:31:57 +13:00
WindSoilder
944cad35bf
When running external command, expand tilde when pass back-quoted word (#8561)
# Description

Fixes: #8542

# User-Facing Changes

## Previous
```
❯ cat `~/TE ST/bug`
cat: ~/TE ST/bug: No such file or directory
```

## After
```
❯ cat `~/TE ST/bug`
a
```

This should be ok because We treat back-quoted strings as bare words

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-26 22:17:51 +13:00
JT
5b03bca138
Remove autoprinting of loop block values (#8618)
# Description

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

This gives a noticeable performance improvement as a bonus.

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

# User-Facing Changes

**BREAKING CHANGE**

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

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-26 13:23:54 +13:00
Reilly Wood
d409171ba8
Change comparison operators to allow nulls (#8617)
Prior to this PR, the less/greater than operators (`<`, `>`, `<=`, `>=`)
would throw an error if either side was null. After this PR, these
operators return null if either side (or both) is null.

### Examples
```bash 
1 < 3       # true
1 < null    # null
null < 3    # null
null < null # null
```

### Motivation

JT [asked the C#
folks](https://discord.com/channels/601130461678272522/615329862395101194/1086137515053957140)
and this is apparently the approach they would choose for comparison
operators if they could start from scratch.

This PR makes `where` more convenient to use on jagged/missing data. For
example, we can now filter on columns that may not be present in every
row:
```
> [{foo: 123} {}] | where foo? > 10
╭───┬─────╮
│ # │ foo │
├───┼─────┤
│ 0 │ 123 │
╰───┴─────╯
```
2023-03-26 12:10:09 +13:00
mike
8cf9bc9993
allow lists to have type annotations (#8529)
this pr refines #8270 and closes #8109

# description
examples:

the original syntax is okay
```nu
def okay [nums: list] {}         # the type of list will be list<any>
```

empty annotations are allowed in any variation
the last two may be caught by a future formatter, 
but do not affect `nu` code currently
```nu
def okay [nums: list<>] {}       # okay

def okay [nums: list<     >] {}  # weird but also okay

def okay [nums: list<
>] {}                            # also weird but okay
```

types are allowed (See [notes](#notes) below)
```nu
def okay [nums: list<int>] {}    # `test [a b c]` will throw an error 

def okay [nums: list< int > {}   # any amount of space within the angle brackets is okay

def err [nums: list <int>] {}    # this is not okay, `nums` and `<int>` will be parsed as
                                 # two separate params, 
```

nested annotations are allowed in many variations
```nu
def okay [items: list<list<int>>] {}

def okay [items: list<list>] {}
```

any unterminated annotation is caught
```nu
Error: nu::parser::unexpected_eof

  × Unexpected end of code.
   ╭─[source:1:1]
 1 │ def err [nums: list<int] {}
   ·                       ▲
   ·                       ╰── expected closing >
   ╰────
```

unknown types are flagged
```nu
Error: nu::parser::unknown_type

  × Unknown type.
   ╭─[source:1:1]
 1 │ def err [nums: list<str>] {}
   ·                     ─┬─
   ·                      ╰── unknown type
   ╰────

Error: nu::parser::unknown_type

  × Unknown type.
   ╭─[source:1:1]
 1 │ def err [nums: list<int, string>] {}
   ·                    ─────┬─────
   ·                          ╰── unknown type
   ╰────
```

# notes
the error message for mismatched types in not as intuitive
```nu
Error: nu::parser::parse_mismatch

  × Parse mismatch during operation.
   ╭─[source:1:1]
 1 │ def err [nums: list<int>] {}; err [a b c]
   ·                                    ┬
   ·                                    ╰── expected int
   ╰────
```
it should be something like this
```nu
Error: nu::parser::parse_mismatch

  × Parse mismatch during operation.
   ╭─[source:1:1]
 1 │ def err [nums: list<int>] {}; err [a b c]
   ·                                    ──┬──
   ·                                      ╰── expected list<int>
   ╰────
```
this is currently not implemented
2023-03-24 12:54:06 +01:00
Sygmei
ec5396a352
feat: added multiple options to http commands (#8571)
# Description

All `http` commands now have a `-f` flag which for now contains the
`headers`, `body` and `status` fields (we can later add stuff like
`is-redirect` or `cookies`).


![image](https://user-images.githubusercontent.com/3835355/227048504-6686445d-ad2e-4f5d-905d-e71b3a4b81a6.png)

*Try it yourself*
```
http get http://mockbin.org/bin/630069dc-2c09-483a-a484-672561b7de14
http get -f http://mockbin.org/bin/630069dc-2c09-483a-a484-672561b7de14
```

The `http` commands can also now use the `-e` flag, which stands for
`--allow-errors`. When the status code is `>= 400`, it will still allow
you to interpret it like a normal response.


![image](https://user-images.githubusercontent.com/3835355/227047790-b9f5a25f-2c0d-4741-881f-4189b23e4ef6.png)

*Try it yourself*
```
http get http://mockbin.org/bin/2ebd3d27-bdc2-4ee8-b042-0bc2c0d1ad2a # should fail like usual
http get -e http://mockbin.org/bin/2ebd3d27-bdc2-4ee8-b042-0bc2c0d1ad2a # will return the body
http get -e -f http://mockbin.org/bin/2ebd3d27-bdc2-4ee8-b042-0bc2c0d1ad2a # will let you see the full response
```

# User-Facing Changes

- Adds `-f` (`--full`) to all `http` commands
- Adds `-e` (--allow-errors) to all `http` commands
2023-03-23 13:32:35 -07:00
Antoine Stevan
05ff7a9925
FIX: do not allow *start > end* in error make spans (#8570)
This should close #8567.

# Description
this PR throws an error when `start > end` in the most complete branch
of `ErrorMake::run`, i.e. when `$.msg`, `$.label.text`, `$.label.start`
and `$.label.end` are defined.

i've also added a `error_start_bigger_than_end_should_fail` test to
check that it does indeed return the right error.

# User-Facing Changes
no more crash when manipulating span bounds and a clear error, e.g.
```bash
>_ error make {msg: "msg" label: {text: "text" start: 1010 end: 1000}}
Error:
  × invalid error format.
   ╭─[entry #3:1:1]
 1 │ error make {msg: "msg" label: {text: "text" start: 1010 end: 1000}}
   ·                               ──────────────────┬─────────────────
   ·                                                 ╰── `$.label.start` is stricly bigger than `$.label.end`
   ╰────
  help: 1010 > 1000
```
or
```bash
>_ error make {
:::     msg: "msg"
:::     label: {
:::         text: "text"
:::         start: ($nu.scope.engine_state.source_bytes - 90)
:::         end: ($nu.scope.engine_state.source_bytes - 100)
:::     }
::: }
Error:
  × invalid error format.
   ╭─[entry #4:2:1]
 2 │         msg: "msg"
 3 │ ╭─▶     label: {
 4 │ │           text: "text"
 5 │ │           start: ($nu.scope.engine_state.source_bytes - 90)
 6 │ │           end: ($nu.scope.engine_state.source_bytes - 100)
 7 │ ├─▶     }
   · ╰──── `$.label.start` is stricly bigger than `$.label.end`
 8 │     }
   ╰────
  help: 204525 > 204515
```

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

# After Submitting
```
$nothing
```
2023-03-23 20:31:06 +01:00
Reilly Wood
5c2a767987
Better error message for mv when file not found (#8586)
Closes #8546.

### Before:
```
> mv foo.txt bar.txt
Error:
  × Invalid file or pattern
   ╭─[entry #2:1:1]
 1 │ mv foo.txt bar.txt
   ·    ───┬───
   ·       ╰── invalid file or pattern
   ╰────
```

### After:
```
> mv foo.txt bar.txt
Error:
  × File(s) not found
   ╭─[entry #2:1:1]
 1 │ mv foo.txt bar.txt
   ·    ───┬───
   ·       ╰── could not find any files matching this glob pattern
   ╰────
```
2023-03-23 11:31:49 -07:00
Jakub Žádník
c48e9cdf5b
Disable alias recursion (for real) (#8557) 2023-03-22 23:16:06 +02:00
JT
2f8a52d256
Switch let/let-env family to init with math expressions (#8545)
# Description

This is an experiment to see what switching the `let/let-env` family to
math expressions for initialisers would be like.

# User-Facing Changes

This would require any commands you call from `let x = <command here>`
(and similar family) to call the command in parentheses. `let x = (foo)`
to call `foo`.

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-23 09:14:10 +13:00
Antoine Stevan
758351c732
FEATURE: add --raw. --tabs and --indent to to nuon as in to json (#8366)
Should close #7255.

# Description
**TL;DR**: this PR adds `--indent <int>`, `--tabs <int>` and `--raw` to
control a bit more the `string` output of `to nuon`, as done in `to
json` already, the goal being to promote the `NUON` format through easy
to read and formatted output `.nuon` files 😋

### outside of `crates/nu-command/src/formats/to/nuon.rs`
as the signature of `value_to_string` has changed, the single call to it
outside of its module definition has been changed to use default values
=> `value_to_string(&value, Span::unknown(), 0, &None)` in
`crates/nu-command/src/filters/uniq.rs`

### changes to `ToNuon` in `crates/nu-command/src/formats/to/nuon.rs`
- the signature now features `--raw`, `--indent <int>` and `--tabs
<int>`
- the structure of the `run` method is inspired from the one in `to
json`
  - we get the values of the arguments
  - we convert the input to a usable `Value`
- depending on whether the user raised `--raw`, `--indent` or `--tabs`,
we call the conversion to `string` with different values of the
indentation, starting at depth 0
- finally, we return `Ok` or a `ShellError::CantConvert` depending on
the conversion result
- some tool functions
- `get_true_indentation` gives the full indentation => `indent` repeated
`depth` times
- `get_true_separators` gives the line and field separators => a `("\n",
"")` when using some formatting or `("", " ")` when converting as pure
string on a single line

the meat of `nuon.rs` is now the `value_to_string` recursive function:
- takes the depth and the indent string
- adds correct newlines, space separators and indentation to the output
- calls itself with the same indent string but `depth + 1` to increase
the indentation by one level
- i used the `nl`, `idt`, `idt_po` (**i**n**d**en**t** **p**lus **o**ne)
and `idt_pt` (**i**n**d**en**t** **p**lus **t**wo) to make the
`format!`s easier to read

# User-Facing Changes
users can now
- control the amount and nature of NUON string output indentation with
  - `--indent <number of " " per level>`
  - `--tabs <number of "\t" per level>` 
- use the previous behaviour of `to nuon` with the `--raw` option
- have new examples with `help to nuon`

> **Note**
> the priority order of the options is the following
> 1. `--raw`
> 2. `--tabs`
> 3. `--indent`
>
> the default is `--indent 2`

# Tests + Formatting
### new tests
- tests involving the string output of `to nuon`, i.e. tests not of the
form `... | to nuon | from nuon ...`, now use the `to nuon --raw`
command => this is the smallest change to have the tests pass, as the
new `to nuon --raw` is equivalent to the old `to nuon`
- in `crates/nu-command/src/formats/to/nuon.rs`, the previous example
has been replaced with three examples
  - `[1 2 3] | to nuon` to show the default behaviour
  - `[1 2 3] | to nuon --raw` to show the not-formatted output
- a more complex example with `{date: 2000-01-01, data: [1 [2 3] 4.56]}
| to nuon`
  - the result values have been defined and the `examples` tests pass
 
### dev
- 🟢 `cargo fmt --all`
- 🟢 `cargo clippy --workspace -- -D warnings -D
clippy::unwrap_used -A clippy::needless_collect`
- 🟢 `cargo test --workspace` ~~passes but without
`to_nuon_errs_on_closure`~~ fixed in
0b4fad7eff

# After Submitting
the `to nuon` page would have to be regenerated at some point due to the
new tests
2023-03-20 15:47:18 -05:00
Artemiy
491a9c019c
Revert "Hide 7925" (#8500)
Revert nushell/nushell#8359
Turn `[empty list]` on by default again
2023-03-18 08:58:13 +13:00
JT
0ca49091c0
Add rest and glob support to 'open' (#8506)
# Description

This adds two different features to `open`:
* The ability to pass more than one file to `open`.
* Support for using globs in the filenames

`open` will create a list stream and stream the output if there is more
than one file opened

Examples:

```
open file1.csv file2.csv file3.csv
```

```
open *.nu | where $it =~ "echo"
```

# User-Facing Changes

Multi-file and glob support in `open`. Original `open` functionality
should continue as before.

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-18 08:51:39 +13:00
WindSoilder
a8eef9af33
Restrict closure expression to be something like {|| ...} (#8290)
# Description

As title, closes: #7921 closes: #8273

# User-Facing Changes

when define a closure without pipe, nushell will raise error for now:
```
❯ let x = {ss ss}
Error: nu::parser::closure_missing_pipe

  × Missing || inside closure
   ╭─[entry #2:1:1]
 1 │ let x = {ss ss}
   ·         ───┬───
   ·            ╰── Parsing as a closure, but || is missing
   ╰────
  help: Try add || to the beginning of closure
```

`any`, `each`, `all`, `where` command accepts closure, it forces user
input closure like `{||`, or parse error will returned.
```
❯ {major:2, minor:1, patch:4} | values | each { into string }
Error: nu::parser::closure_missing_pipe

  × Missing || inside closure
   ╭─[entry #4:1:1]
 1 │ {major:2, minor:1, patch:4} | values | each { into string }
   ·                                             ───────┬───────
   ·                                                    ╰── Parsing as a closure, but || is missing
   ╰────
  help: Try add || to the beginning of closure
```

`with-env`, `do`, `def`, `try` are special, they still remain the same,
although it says that it accepts a closure, but they don't need to be
written like `{||`, it's more likely a block but can capture variable
outside of scope:
```
❯ def test [input] { echo [0 1 2] | do { do { echo $input } } }; test aaa
aaa
```

Just realize that It's a big breaking change, we need to update config
and scripts...

# Tests + Formatting

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-17 07:36:28 -05:00
Dan Davison
7625aed200
SQL-style join command for Nushell tables (#8424)
This PR adds a command `join` for performing SQL-style joins on Nushell
tables:

```
〉join -h
Join two tables

Usage:
  > join {flags} <right-table> <left-on> (right-on)

Flags:
  -h, --help - Display the help message for this command
  -i, --inner - Inner join (default)
  -l, --left - Left-outer join
  -r, --right - Right-outer join
  -o, --outer - Outer join

Signatures:
  <table> | join list<any>, <string>, <string?> -> <table>

Parameters:
  right-table <list<any>>: The right table in the join
  left-on <string>: Name of column in input (left) table to join on
  (optional) right-on <string>: Name of column in right table to join on. Defaults to same column as left table.

Examples:
  Join two tables
  > [{a: 1 b: 2}] | join [{a: 1 c: 3}] a
  ╭───┬───┬───╮
  │ a │ b │ c │
  ├───┼───┼───┤
  │ 1 │ 2 │ 3 │
  ╰───┴───┴───╯
```

<table>
    <tbody>
        <tr>
<td><img width="400" alt="image"
src="https://user-images.githubusercontent.com/52205/224578744-eb9d133e-2510-4a3d-bd0a-d615f07a06b7.png"></td>
        </tr>
    </tbody>
  </table>


# User-Facing Changes

Adds a new command `join`

# Tests + Formatting

```
cargo test -p nu-command commands::join
```

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

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

# After Submitting

- [ ] If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.

---------

Co-authored-by: Reilly Wood <reilly.wood@icloud.com>
2023-03-16 16:57:20 -07:00
Artemiy
19beafa865
Disable pipeline echo (#8292)
# Description

Change behavior of block evaluation to not print result of intermediate
commands.
Previously result of every but last pipeline in a block was printed to
stdout, and last one was returned

![image](https://user-images.githubusercontent.com/17511668/222550110-3f62fbed-432c-4b46-b9b1-4cb45a1f893e.png)
With this change results of intermediate pipelines are discarded after
they finish and the last one is returned as before:

![image](https://user-images.githubusercontent.com/17511668/222550346-f1e74f80-f6b6-4aa3-98d6-888ea4cb4915.png)
Now one should use `print` explicitly to print something to stdout

![image](https://user-images.githubusercontent.com/17511668/222923955-fda0d77b-41b4-4f91-a80f-12b0a1880c05.png)

**Note, that this behavior is not limited to functions!** The scope of
this change are all blocks. All of the below are executed as blocks and
thus exibited this behavior in the same way:

![image](https://user-images.githubusercontent.com/17511668/222924062-342c15de-4273-4bf5-8b39-fe6e3aa96076.png)

With this change outputs for all types of blocks are cleaned:

![image](https://user-images.githubusercontent.com/17511668/222924118-7d51c27e-04bb-43e5-8efe-38b484683bfe.png)


# User-Facing Changes

All types of blocks (function bodies, closures, `if` branches, `for` and
`loop` bodies e.t.c.) no longer print result of intermediate pipelines.

# Tests + Formatting

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-17 11:53:46 +13:00
Matthew Deville
8543b0789d
Additional flags for commands from csv and from tsv (#8398)
# Description

Resolves issue #8370

Adds the following flags to commands `from csv` and `from tsv`:
- `--flexible`: allow the number of fields in records to be variable
- `-c --comment`: a comment character to ignore lines starting with it
- `-q --quote`: a quote character to ignore separators in strings,
defaults to '\"'
- `-e --escape`: an escape character for strings containing the quote
character

Internally, the `Value` struct has an additional helper function
`as_char` which converts it to a single `char`

# User-Facing Changes

The single quoted string `'\t'` can no longer be used as a parameter for
the flag `--separator '\t'` as it is interpreted as a two-character
string. One needs to use from now on the flag with a double quoted
string like so: `-s "\t"` which correctly interprets the string as a
single `char`.
2023-03-16 17:49:46 -05:00
JT
0903a891e4
Fix parse of def with paren params (#8490)
# Description

This adds back support for parens around params, eg `def foo (x: int) {
... }`

# User-Facing Changes

returns to the original support before the recent parser refactor

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-17 09:08:41 +13:00
Reilly Wood
1b2916988e
Add -i flag back to get and select (#8488)
https://github.com/nushell/nushell/pull/8379 removed the `-i` flag from
`get` and `select` because the new `?` functionality covers most of the
same use cases. However, https://github.com/nushell/nushell/issues/8480
made me realize that `-i` is still useful when dealing with cell paths
in variables.

This PR re-adds the `-i` flag to `get` and `select`. It works by just
marking every member in the cell path as optional, which will behave
_slightly_ differently than `-i` used to (previously it would suppress
any errors, even type errors) but IMO that's OK.
2023-03-16 11:50:04 -07:00
WindSoilder
31d9c0889c
Revert "Throw out error if external command in subexpression is failed to run (#8204)" (#8475)
This reverts commit dec0a2517f.

It breaks programs like `fzf`

# Description

Fixes: #8472 
Fixes:  #8313
Reopen: #7690 

# 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` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-17 07:07:32 +13:00
WindSoilder
0b97f52a8b
make better usage of error value in catch block (#8460)
# Description

Fixes: #8402  #8391

The cause of these issue if when we want to evaluate a expression with
`Value::Error`, nushell show error immediately. To fix the issue, we can
wrap the `Value::Error` into a `Value::Record`. So user can see the
message he want.

# User-Facing Changes

Before
```
❯ try { 1 / 0 } catch {|e| echo $"error is ($e)"}
Error: nu:🐚:division_by_zero

  × Division by zero.
   ╭─[entry #2:1:1]
 1 │ try { 1 / 0 } catch {|e| echo $"error is ($e)"}
   ·         ┬
   ·         ╰── division by zero
   ╰────
```

After
```
❯ try { 1 / 0 } catch {|e| echo $"error is ($e)"}
error is {msg: Division by zero., debug: DivisionByZero { span: Span { start: 43104, end: 43105 } }, raw: DivisionByZero { sp
an: Span { start: 43104, end: 43105 } }}
```

As we can see, error becomes a record with `msg`, `debug`, `raw`
columns.
1. msg column is a user friendly message.
2. debug column is more about `Value::Error` information as a string.
3. raw column is a `Value::Error` itself, if user want to re-raise the
error, just use `$e | get raw`

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-15 20:56:18 -07:00
Reilly Wood
21b84a6d65
Optional members in cell paths: Attempt 2 (#8379)
This is a follow up from https://github.com/nushell/nushell/pull/7540.
Please provide feedback if you have the time!

## Summary

This PR lets you use `?` to indicate that a member in a cell path is
optional and Nushell should return `null` if that member cannot be
accessed.

Unlike the previous PR, `?` is now a _postfix_ modifier for cell path
members. A cell path of `.foo?.bar` means that `foo` is optional and
`bar` is not.

`?` does _not_ suppress all errors; it is intended to help in situations
where data has "holes", i.e. the data types are correct but something is
missing. Type mismatches (like trying to do a string path access on a
date) will still fail.

### Record Examples

```bash

{ foo: 123 }.foo # returns 123

{ foo: 123 }.bar # errors
{ foo: 123 }.bar? # returns null

{ foo: 123 } | get bar # errors
{ foo: 123 } | get bar? # returns null

{ foo: 123 }.bar.baz # errors
{ foo: 123 }.bar?.baz # errors because `baz` is not present on the result from `bar?`
{ foo: 123 }.bar.baz? # errors
{ foo: 123 }.bar?.baz? # returns null
```

### List Examples
```
〉[{foo: 1} {foo: 2} {}].foo
Error: nu:🐚:column_not_found

  × Cannot find column
   ╭─[entry #30:1:1]
 1 │ [{foo: 1} {foo: 2} {}].foo
   ·                    ─┬  ─┬─
   ·                     │   ╰── cannot find column 'foo'
   ·                     ╰── value originates here
   ╰────
〉[{foo: 1} {foo: 2} {}].foo?
╭───┬───╮
│ 0 │ 1 │
│ 1 │ 2 │
│ 2 │   │
╰───┴───╯
〉[{foo: 1} {foo: 2} {}].foo?.2 | describe
nothing

〉[a b c].4? | describe
nothing

〉[{foo: 1} {foo: 2} {}] | where foo? == 1
╭───┬─────╮
│ # │ foo │
├───┼─────┤
│ 0 │   1 │
╰───┴─────╯
```

# Breaking changes

1. Column names with `?` in them now need to be quoted.
2. The `-i`/`--ignore-errors` flag has been removed from `get` and
`select`
1. After this PR, most `get` error handling can be done with `?` and/or
`try`/`catch`.
4. Cell path accesses like this no longer work without a `?`:
```bash
〉[{a:1 b:2} {a:3}].b.0
2
```
We had some clever code that was able to recognize that since we only
want row `0`, it's OK if other rows are missing column `b`. I removed
that because it's tricky to maintain, and now that query needs to be
written like:


```bash
〉[{a:1 b:2} {a:3}].b?.0
2
```

I think the regression is acceptable for now. I plan to do more work in
the future to enable streaming of cell path accesses, and when that
happens I'll be able to make `.b.0` work again.
2023-03-15 20:50:58 -07:00
JT
61455b457d
Fix warnings and old names (#8457)
# Description

This fixes up some clippy warnings and removes some old names/info from
our unit tests

# User-Facing Changes

Internal changes only

# Tests + Formatting

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

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-15 18:54:55 +13:00