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try to implement ls using read_dir #1

Merged
merged 5 commits into from
Apr 24, 2024
Merged

try to implement ls using read_dir #1

merged 5 commits into from
Apr 24, 2024

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WindSoilder
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Tried to implement ls using read_dir, it will invoke read_dir once it detects the given pattern is a directory

WindSoilder pushed a commit that referenced this pull request Apr 24, 2024
Should close nushell#10833 — though I'd imagine that should have already been
closed.

# Description

Very minor tweak, but it was quite noticeable when using Zellij which
relies on OSC 2 to set pane titles. Before the change:

![image](https://github.com/nushell/nushell/assets/6251883/b944bbce-2040-4886-9955-3c5b57d368e9)

Note that the default `Pane #1` is still showing for the untouched
shell, but running a command like `htop` or `ls` correctly sets the
title during / afterwards.

After this PR:

![image](https://github.com/nushell/nushell/assets/6251883/dd513cfe-923c-450f-b0f2-c66938b0d6f0)

There are now no-longer any unset titles — even if the shell hasn't been
touched.

**As an aside:** I feel quite strongly that (at least OSC 2) shell
integration should be enabled by default, as it is for every other Linux
shell I've used, but I'm not sure which issues that caused that the
default config refers to? Which terminals are broken by shell
integration, and could some of the shell integrations be turned on by
default after splitting things into sub-options as suggested in nushell#11301 ?

# User-Facing Changes

You'll just have shell integrations working from right after the shell
has been launched, instead of needing to run something first.

# Tests + Formatting

Not quite sure how to test this one? Are there any other tests that
currently exist for shell integration? I couldn't quite track them
down...

# After Submitting

Let me know if you think this needs any user-facing docs changes!
WindSoilder added a commit that referenced this pull request Apr 24, 2024
# Description
Close: nushell#12514

# User-Facing Changes
`^ls | skip 1` will raise an error
```nushell
❯ ^ls | skip 1
Error: nu::shell::only_supports_this_input_type

  × Input type not supported.
   ╭─[entry #1:1:2]
 1 │ ^ls | skip 1
   ·  ─┬   ──┬─
   ·   │     ╰── only list, binary or range input data is supported
   ·   ╰── input type: raw data
   ╰────
```

# Tests + Formatting
Sorry I can't add it because of the issue:
nushell#12558

# After Submitting
Nan
@WindSoilder WindSoilder merged commit b39a699 into ls Apr 24, 2024
15 checks passed
@WindSoilder WindSoilder deleted the ls_read_dir branch April 24, 2024 08:25
WindSoilder pushed a commit that referenced this pull request May 3, 2024
…stStream` (nushell#12412)

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# Description
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Prior, it seemed that nested errors would not get detected and shown.
This PR fixes that.

Resolves nushell#10176:
```
~/CodingProjects/nushell> [[1,2]] | each {|x| $x | each {|y| error make {msg: "oh noes"} } }                        05/04/2024 21:34:08
Error: nu::shell::eval_block_with_input

  × Eval block failed with pipeline input
   ╭─[entry #1:1:3]
 1 │ [[1,2]] | each {|x| $x | each {|y| error make {msg: "oh noes"} } }
   ·   ┬
   ·   ╰── source value
   ╰────

Error:   × oh noes
   ╭─[entry #1:1:36]
 1 │ [[1,2]] | each {|x| $x | each {|y| error make {msg: "oh noes"} } }
   ·                                    ─────┬────
   ·                                         ╰── originates from here
   ╰────
```

Resolves nushell#11224:
```
~/CodingProjects/nushell> [0] | each { |_|                                                                          05/04/2024 21:35:40
:::     [0] | each { |_|
:::         non-existent-command
:::     }
::: }
Error: nu::shell::eval_block_with_input

  × Eval block failed with pipeline input
   ╭─[entry #1:2:6]
 1 │ [0] | each { |_|
 2 │     [0] | each { |_|
   ·      ┬
   ·      ╰── source value
 3 │         non-existent-command
   ╰────

Error: nu:🐚:external_command

  × External command failed
   ╭─[entry #1:3:9]
 2 │     [0] | each { |_|
 3 │         non-existent-command
   ·         ──────────┬─────────
   ·                   ╰── executable was not found
 4 │     }
   ╰────
  help: No such file or directory (os error 2)
```

# 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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WindSoilder pushed a commit that referenced this pull request May 30, 2024
# Description

Fix a regression introduced by nushell#12921, where tilde expansion was no
longer done on the external command name, breaking things like

```nushell
> ~/.cargo/bin/exa
```

This properly handles quoted strings, so they don't expand:

```nushell
> ^"~/.cargo/bin/exa"
Error: nu::shell::external_command

  × External command failed
   ╭─[entry #1:1:2]
 1 │ ^"~/.cargo/bin/exa"
   ·  ─────────┬────────
   ·           ╰── Command `~/.cargo/bin/exa` not found
   ╰────
  help: `~/.cargo/bin/exa` is neither a Nushell built-in or a known external command

```

This required a change to the parser, so the command name is also parsed
in the same way the arguments are - i.e. the quotes on the outside
remain in the expression. Hopefully that doesn't break anything else. 🤞

Fixes nushell#13000. Should include in patch release 0.94.1

cc @yizhepku

# User-Facing Changes
- Tilde expansion now works again for external commands
- The `command` of `run-external` will now have its quotes removed like
the other arguments if it is a literal string
- The parser is changed to include quotes in the command expression of
`ExternalCall` if they were present

# Tests + Formatting
I would like to add a regression test for this, but it's complicated
because we need a well-known binary within the home directory, which
just isn't a thing. We could drop one there, but that's kind of a bad
behavior for a test to do. I also considered changing the home directory
for the test, but that's so platform-specific - potentially could get it
working on specific platforms though. Changing `HOME` env on Linux
definitely works as far as tilde expansion works.

- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
WindSoilder added a commit that referenced this pull request Jul 1, 2024
…ushell#13131)

# Description
Closes: nushell#13010

It adds an additional check inside `parse_string`, and returns
`unbalanced quote` if input string is unbalanced

# User-Facing Changes
After this pr, the following is no longer allowed:
```nushell
❯ "asdfasdf"asdfasdf
Error: nu::parser::extra_token_after_closing_delimiter

  × Invaild characters after closing delimiter
   ╭─[entry #1:1:11]
 1 │ "asdfasdf"asdfasdf
   ·           ────┬───
   ·               ╰── invalid characters
   ╰────
  help: Try removing them.
❯ 'asdfasd'adsfadf
Error: nu::parser::extra_token_after_closing_delimiter

  × Invaild characters after closing delimiter
   ╭─[entry nushell#2:1:10]
 1 │ 'asdfasd'adsfadf
   ·          ───┬───
   ·             ╰── invalid characters
   ╰────
  help: Try removing them.
```

# Tests + Formatting
Added 1 test
WindSoilder pushed a commit that referenced this pull request Jul 4, 2024
# Description
Fixes nushell#13280. After apply this patch, we can use non-timezone string +
format option `into datetime` cmd

# User-Facing Changes
AS-IS (before fixing)
```
$ "09.02.2024 11:06:11" | into datetime --format '%m.%d.%Y %T'
Error: nu::shell::cant_convert

  × Can't convert to could not parse as datetime using format '%m.%d.%Y %T'.
   ╭─[entry #1:1:25]
 1 │ "09.02.2024 11:06:11" | into datetime --format '%m.%d.%Y %T'
   ·                         ──────┬──────
   ·                               ╰── can't convert input is not enough for unique date and time to could not parse as datetime using format '%m.%d.%Y %T'
   ╰────
  help: you can use `into datetime` without a format string to enable flexible parsing

$ "09.02.2024 11:06:11" | into datetime
Mon, 2 Sep 2024 11:06:11 +0900 (in 2 months)
```

TO-BE(After fixing)

```
$ "09.02.2024 11:06:11" | into datetime --format '%m.%d.%Y %T'
Mon, 2 Sep 2024 20:06:11 +0900 (in 2 months)

$ "09.02.2024 11:06:11" | into datetime 
Mon, 2 Sep 2024 11:06:11 +0900 (in 2 months)
```


# Tests + Formatting
If there is agreement on the direction, I will add a test.

# After Submitting

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
WindSoilder added a commit that referenced this pull request Jul 10, 2024
# Description
From the feedbacks from @amtoine , it's good to make nushell shows error
for `o>|` syntax.

# User-Facing Changes
## Before
```nushell
'foo' o>| print                                                                                                                                                                                                                     07/09/2024 06:44:23 AM
Error: nu::parser::parse_mismatch

  × Parse mismatch during operation.
   ╭─[entry nushell#6:1:9]
 1 │ 'foo' o>| print
   ·         ┬
   ·         ╰── expected redirection target
```

## After
```nushell
'foo' o>| print                                                                                                                                                                                                                     07/09/2024 06:47:26 AM
Error: nu::parser::parse_mismatch

  × Parse mismatch during operation.
   ╭─[entry #1:1:7]
 1 │ 'foo' o>| print
   ·       ─┬─
   ·        ╰── expected `|`.  Redirection stdout to pipe is the same as piping directly.
   ╰────
```

# Tests + Formatting
Added one test

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
WindSoilder pushed a commit that referenced this pull request Aug 18, 2024
# Description

As part of fixing nushell#13586, this
PR checks the types of the operands when creating a range. Stuff like
`0..(glob .)` will be rejected at parse time. Additionally, `0..$x` will
be treated as a range and rejected if `x` is not defined, rather than
being treated as a string. A separate PR will need to be made to do
reject streams at runtime, so that stuff like `0..(open /dev/random)`
doesn't hang.

Internally, this PR adds a `ParseError::UnsupportedOperationTernary`
variant, for when you have a range like `1..2..(glob .)`.

# User-Facing Changes

Users will now receive an error if any of the operands in the ranges
they construct have types that aren't compatible with `Type::Number`.

Additionally, if a piece of code looks like a range but some parse error
is encountered while parsing it, that piece of code will still be
treated as a range and the user will be shown the parse error. This
means that a piece of code like `0..$x` will be treated as a range no
matter what. Previously, if `x` weren't the expression would've been
treated as a string `"0..$x"`. I feel like it makes the language less
complicated if we make it less context-sensitive.

Here's an example of the error you get:
```
> 0..(glob .)
Error: nu::parser::unsupported_operation

  × range is not supported between int and any.
   ╭─[entry #1:1:1]
 1 │ 0..(glob .)
   · ─────┬─────┬┬
   ·      │     │╰── any
   ·      │     ╰── int
   ·      ╰── doesn't support these values
   ╰────
```

And as an image:

![image](https://github.com/user-attachments/assets/5c76168d-27db-481b-b541-861dac899dbf)

Note: I made the operands themselves (above, `(glob .)`) be garbage,
rather than the `..` operator itself. This doesn't match the behavior of
the math operators (if you do `1 + "foo"`, `+` gets highlighted red).
This is because with ranges, the range operators aren't `Expression`s
themselves, so they can't be turned into garbage. I felt like here, it
makes more sense to highlight the individual operand anyway.
WindSoilder pushed a commit that referenced this pull request Sep 8, 2024
# Description
This PR makes it so that non-zero exit codes and termination by signal
are treated as a normal `ShellError`. Currently, these are silent
errors. That is, if an external command fails, then it's code block is
aborted, but the parent block can sometimes continue execution. E.g.,
see nushell#8569 and this example:
```nushell
[1 2] | each { ^false }
```

Before this would give:
```
╭───┬──╮
│ 0 │  │
│ 1 │  │
╰───┴──╯
```

Now, this shows an error:
```
Error: nu::shell::eval_block_with_input

  × Eval block failed with pipeline input
   ╭─[entry #1:1:2]
 1 │ [1 2] | each { ^false }
   ·  ┬
   ·  ╰── source value
   ╰────

Error: nu:🐚:non_zero_exit_code

  × External command had a non-zero exit code
   ╭─[entry #1:1:17]
 1 │ [1 2] | each { ^false }
   ·                 ──┬──
   ·                   ╰── exited with code 1
   ╰────
```

This PR fixes nushell#12874, fixes nushell#5960, fixes nushell#10856, and fixes nushell#5347. This
PR also partially addresses nushell#10633 and nushell#10624 (only the last command of
a pipeline is currently checked). It looks like nushell#8569 is already fixed,
but this PR will make sure it is definitely fixed (fixes nushell#8569).

# User-Facing Changes
- Non-zero exit codes and termination by signal now cause an error to be
thrown.
- The error record value passed to a `catch` block may now have an
`exit_code` column containing the integer exit code if the error was due
to an external command.
- Adds new config values, `display_errors.exit_code` and
`display_errors.termination_signal`, which determine whether an error
message should be printed in the respective error cases. For
non-interactive sessions, these are set to `true`, and for interactive
sessions `display_errors.exit_code` is false (via the default config).

# Tests
Added a few tests.

# After Submitting
- Update docs and book.
- Future work:
- Error if other external commands besides the last in a pipeline exit
with a non-zero exit code. Then, deprecate `do -c` since this will be
the default behavior everywhere.
- Add a better mechanism for exit codes and deprecate
`$env.LAST_EXIT_CODE` (it's buggy).
WindSoilder pushed a commit that referenced this pull request Sep 30, 2024
# Description
Old code was comparing remaining positional arguments with total number
of arguments, where it should've compared remaining positional with
with remaining arguments of any kind. This means that if a function was
given too few arguments, `calculate_end_span` would believe that it
actually had too many arguments, since after parsing the first few
arguments, the number of remaining arguments needed were fewer than the
*total* number of arguments, of which we had used several.

Fixes nushell#9072
Fixes: nushell#13930
Fixes: nushell#12069
Fixes: nushell#8385

Extracted from nushell#10381

## Bonus

It also improves the error handling on missing positional arguments
before keywords (no longer crashing since nushell#9851). Instead of just giving
the keyword to the parser for the missing positional, we give an
explicit error about a missing positional argument. I would like better
descriptions than "missing var_name" though, but I'm not sure if that's
available without

Old error
```
Error: nu::parser::parse_mismatch

  × Parse mismatch during operation.
   ╭─[entry #1:1:1]
 1 │ let = if foo
   ·     ┬
   ·     ╰── expected valid variable name
   ╰────
```

New error
```
Error: nu::parser::missing_positional

  × Missing required positional argument.
   ╭─[entry nushell#18:1:1]
 1 │ let = foo
   ·    ┬
   ·    ╰── missing var_name
   ╰────
  help: Usage: let <var_name> = <initial_value>
```

# User-Facing Changes
The program `alias = = =` is no longer accepted by the parser
WindSoilder pushed a commit that referenced this pull request Oct 24, 2024
)

# Description

This PR updates `group-by` and `split-by` to allow other nushell Values
to be used, namely bools.

### Before
```nushell
❯ [false, false, true, false, true, false] | group-by | table -e
Error: nu::shell::cant_convert

  × Can't convert to string.
   ╭─[entry #1:1:2]
 1 │ [false, false, true, false, true, false] | group-by | table -e
   ·  ──┬──
   ·    ╰── can't convert bool to string
   ╰────
```
### After
```nushell
❯ [false, false, true, false, true, false] | group-by | table -e
╭───────┬───────────────╮
│       │ ╭───┬───────╮ │
│ false │ │ 0 │ false │ │
│       │ │ 1 │ false │ │
│       │ │ 2 │ false │ │
│       │ │ 3 │ false │ │
│       │ ╰───┴───────╯ │
│       │ ╭───┬──────╮  │
│ true  │ │ 0 │ true │  │
│       │ │ 1 │ true │  │
│       │ ╰───┴──────╯  │
╰───────┴───────────────╯
```

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

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

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automatically
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> ```
-->

# After Submitting
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WindSoilder pushed a commit that referenced this pull request Oct 24, 2024
)

# Description

This PR updates `group-by` and `split-by` to allow other nushell Values
to be used, namely bools.

### Before
```nushell
❯ [false, false, true, false, true, false] | group-by | table -e
Error: nu::shell::cant_convert

  × Can't convert to string.
   ╭─[entry #1:1:2]
 1 │ [false, false, true, false, true, false] | group-by | table -e
   ·  ──┬──
   ·    ╰── can't convert bool to string
   ╰────
```
### After
```nushell
❯ [false, false, true, false, true, false] | group-by | table -e
╭───────┬───────────────╮
│       │ ╭───┬───────╮ │
│ false │ │ 0 │ false │ │
│       │ │ 1 │ false │ │
│       │ │ 2 │ false │ │
│       │ │ 3 │ false │ │
│       │ ╰───┴───────╯ │
│       │ ╭───┬──────╮  │
│ true  │ │ 0 │ true │  │
│       │ │ 1 │ true │  │
│       │ ╰───┴──────╯  │
╰───────┴───────────────╯
```

# 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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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
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check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use toolkit.nu; toolkit test stdlib"` 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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WindSoilder pushed a commit that referenced this pull request Oct 24, 2024
…ell#14118)

Fixes nushell#14023

# Description

- Prevents "failed to find added variable" when modules export constants
  with type signatures:

```nushell
> module foo { export const bar: int = 2 }
Error: nu::parser::unknown_state

  × Internal error.
   ╭─[entry #1:1:21]
 1 │ module foo { export const bar: int = 2 }
   ·                     ─────────┬────────
   ·                              ╰── failed to find added variable
```

- Returns `name_is_builtin_var` errors for names with type signatures:

```nushell
> let env: string = "";
Error: nu::parser::name_is_builtin_var

  × `env` used as variable name.
   ╭─[entry #1:1:5]
 1 │ let env: string = "";
   ·     ─┬─
   ·      ╰── already a builtin variable
```
WindSoilder pushed a commit that referenced this pull request Oct 30, 2024
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# Description
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This PR fixes the quoting and escaping of column names in `to nuon`.
Before the PR, column names with quotes inside them would get quoted,
but not escaped:

```nushell
> { 'a"b': 2 } | to nuon
{ "a"b": 2 }

> { 'a"b': 2 } | to nuon | from nuon
Error:   × error when loading nuon text
   ╭─[entry #1:1:27]
 1 │ { "a\"b": 2 } | to nuon | from nuon
   ·                           ────┬────
   ·                               ╰── could not load nuon text
   ╰────

Error:   × error when parsing nuon text
   ╭─[entry #1:1:27]
 1 │ { "a\"b": 2 } | to nuon | from nuon
   ·                           ────┬────
   ·                               ╰── could not parse nuon text
   ╰────

Error:   × error when parsing
   ╭────
 1 │ {"a"b": 2}
   ·          ┬
   ·          ╰── Unexpected end of code.
   ╰────

> [['a"b']; [2] [3]] | to nuon
[["a"b"]; [2], [3]]

> [['a"b']; [2] [3]] | to nuon | from nuon
Error:   × error when loading nuon text
   ╭─[entry #1:1:32]
 1 │ [['a"b']; [2] [3]] | to nuon | from nuon
   ·                                ────┬────
   ·                                    ╰── could not load nuon text
   ╰────

Error:   × error when parsing nuon text
   ╭─[entry #1:1:32]
 1 │ [['a"b']; [2] [3]] | to nuon | from nuon
   ·                                ────┬────
   ·                                    ╰── could not parse nuon text
   ╰────

Error:   × error when parsing
   ╭────
 1 │ [["a"b"]; [2], [3]]
   ·                   ┬
   ·                   ╰── Unexpected end of code.
   ╰────
```

After this PR, the quote is escaped properly:

```nushell
> { 'a"b': 2 } | to nuon
{ "a\"b": 2 }

> { 'a"b': 2 } | to nuon | from nuon
╭─────┬───╮
│ a"b │ 2 │
╰─────┴───╯

> [['a"b']; [2] [3]] | to nuon
[["a\"b"]; [2], [3]]

> [['a"b']; [2] [3]] | to nuon | from nuon
╭─────╮
│ a"b │
├─────┤
│   2 │
│   3 │
╰─────╯
```

The cause of the issue was that `to nuon` simply wrapped column names in
`'"'` instead of calling `escape_quote_string`.

As part of this change, I also moved the functions related to quoting
(`needs_quoting` and `escape_quote_string`) into `nu-utils`, since
previously they were defined in very ad-hoc places (and, in the case of
`escape_quote_string`, it was defined multiple times with the same
body!).

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

`to nuon` now properly escapes quotes in column names.

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

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All tests pass, including workspace and stdlib tests.

# After Submitting
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WindSoilder pushed a commit that referenced this pull request Dec 6, 2024
…nushell#14353)

Fixes nushell#14252

# User-Facing Changes

- Special characters in module names are replaced with underscores when
  importing constants, preventing "expected valid variable name":

```nushell
> module foo-bar { export const baz = 1 }
> use foo-bar
> $foo_bar.baz
```

- "expected valid variable name" errors now include a suggestion list:

```nushell
> module foo-bar { export const baz = 1 }
> use foo-bar
> $foo-bar
Error: nu::parser::parse_mismatch_with_did_you_mean

  × Parse mismatch during operation.
   ╭─[entry #1:1:1]
 1 │ $foo-bar;
   · ────┬───
   ·     ╰── expected valid variable name. Did you mean '$foo_bar'?
   ╰────
```
WindSoilder pushed a commit that referenced this pull request Dec 9, 2024
…time (nushell#14303)

Alternative solution to:
- nushell#12195 

The other approach:
- nushell#14305

# Description
Adds ~`path const`~ `path self`, a parse-time only command for getting
the absolute path of the source file containing it, or any file relative
to the source file.

- Useful for any script or module that makes use of non nuscript files.
- Removes the need for `$env.CURRENT_FILE` and `$env.FILE_PWD`.
- Can be used in modules, sourced files or scripts.

# Examples

```nushell
# ~/.config/nushell/scripts/foo.nu
const paths = {
    self: (path self),
    dir: (path self .),
    sibling: (path self sibling),
    parent_dir: (path self ..),
    cousin: (path self ../cousin),
}

export def main [] {
    $paths
}
```

```nushell
> use foo.nu
> foo
╭────────────┬────────────────────────────────────────────╮
│ self       │ /home/user/.config/nushell/scripts/foo.nu  │
│ dir        │ /home/user/.config/nushell/scripts         │
│ sibling    │ /home/user/.config/nushell/scripts/sibling │
│ parent_dir │ /home/user/.config/nushell                 │
│ cousin     │ /home/user/.config/nushell/cousin          │
╰────────────┴────────────────────────────────────────────╯
```


Trying to run in a non-const context
```nushell
> path self
Error:   × this command can only run during parse-time
   ╭─[entry #1:1:1]
 1 │ path self 
   · ─────┬────
   ·      ╰── can't run after parse-time
   ╰────
  help: try assigning this command's output to a const variable
```

Trying to run in the REPL i.e. not in a file
```nushell
> const foo = path self
Error:   × Error: nu:🐚:file_not_found
  │ 
  │   × File not found
  │    ╭─[entry nushell#3:1:13]
  │  1 │ const foo = path self
  │    ·             ─────┬────
  │    ·                  ╰── Couldn't find current file
  │    ╰────
  │ 
   ╭─[entry nushell#3:1:13]
 1 │ const foo = path self
   ·             ─────┬────
   ·                  ╰── Encountered error during parse-time evaluation
   ╰────
```

# Comparison with nushell#14305
## Pros
- Self contained implementation, does not require changes in the parser.
- More concise usage, especially with parent directories.

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
WindSoilder pushed a commit that referenced this pull request Dec 16, 2024
# Description

Closes nushell#14521 

This PR tweaks the way 64-bit hex numbers are parsed.

### Before
```nushell
❯ 0xffffffffffffffef
Error: nu::shell::external_command

  × External command failed
   ╭─[entry #1:1:1]
 1 │ 0xffffffffffffffef
   · ─────────┬────────
   ·          ╰── Command `0xffffffffffffffef` not found
   ╰────
  help: `0xffffffffffffffef` is neither a Nushell built-in or a known external command
```

### After
```nushell
❯ 0xffffffffffffffef
-17
```

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

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

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
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check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use toolkit.nu; toolkit test stdlib"` to run the
tests for the standard library

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

# After Submitting
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WindSoilder pushed a commit that referenced this pull request Feb 5, 2025
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# 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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This PR makes two changes related to [run-time pipeline input type
checking](nushell#14741):

1. The check which bypasses type checking for commands with only
`Type::Nothing` input types has been expanded to work with commands with
multiple `Type::Nothing` inputs for different outputs. For example,
`ast` has three input/output type pairs, but all of the inputs are
`Type::Nothing`:
  ```
  ╭───┬─────────┬────────╮
  │ # │  input  │ output │
  ├───┼─────────┼────────┤
  │ 0 │ nothing │ table  │
  │ 1 │ nothing │ record │
  │ 2 │ nothing │ string │
  ╰───┴─────────┴────────╯
  ```
Before this PR, passing a value (which would otherwise be ignored) to
`ast` caused a run-time type error:
  ```
    Error: nu::shell::only_supports_this_input_type
  
    × Input type not supported.
     ╭─[entry #1:1:6]
   1 │ echo 123 | ast -j -f "hi" 
     ·      ─┬─   ─┬─
· │ ╰── only nothing, nothing, and nothing input data is supported
     ·       ╰── input type: int
     ╰────
  
  ```

  After this PR, no error is raised.

This doesn't really matter for `ast` (the only other built-in command
with a similar input/output type signature is `cal`), but it's more
logically consistent.

2. Bypasses input type-checking (parse-time ***and*** run-time) for some
(not all, see below) commands which have both a `Type::Nothing` input
and some other non-nothing `Type` input. This is accomplished by adding
a `Type::Any` input with the same output as the corresponding
`Type::Nothing` input/output pair.
  &nbsp;
This is necessary because some commands are intended to operate on an
argument with empty pipeline input, or operate on an empty pipeline
input with no argument. This causes issues when a value is implicitly
passed to one of these commands. I [discovered this
issue](https://discord.com/channels/601130461678272522/615962413203718156/1329945784346611712)
when working with an example where the `open` command is used in
`sort-by` closure:
```nushell
ls | sort-by { open -r $in.name | lines | length }
```

Before this PR (but after the run-time input type checking PR), this
error is raised:

```
Error: nu::shell::only_supports_this_input_type

  × Input type not supported.
   ╭─[entry #1:1:1]
 1 │ ls | sort-by { open -r $in.name | lines | length }
   · ─┬             ──┬─
   ·  │               ╰── only nothing and string input data is supported
   ·  ╰── input type: record<name: string, type: string, size: filesize, modified: date>
   ╰────
```

While this error is technically correct, we don't actually want to
return an error here since `open` ignores its pipeline input when an
argument is passed. This would be a parse-time error as well if the
parser was able to infer that the closure input type was a record, but
our type inference isn't that robust currently, so this technically
incorrect form snuck by type checking until nushell#14741.

However, there are some commands with the same kind of type signature
where this behavior is actually desirable. This means we can't just
bypass type-checking for any command with a `Type::Nothing` input. These
commands operate on true `null` values, rather than ignoring their
input. For example, `length` returns `0` when passed a `null` value.
It's correct, and even desirable, to throw a run-time error when
`length` is passed an unexpected type. For example, a string, which
should instead be measured with `str length`:

```nushell
["hello" "world"] | sort-by { length }
# => Error: nu::shell::only_supports_this_input_type
# => 
# =>   × Input type not supported.
# =>    ╭─[entry nushell#32:1:10]
# =>  1 │ ["hello" "world"] | sort-by { length }
# =>    ·          ───┬───              ───┬──
# =>    ·             │                    ╰── only list<any>, binary, and nothing input data is supported
# =>    ·             ╰── input type: string
# =>    ╰────
```

We need a more robust way for commands to express how they handle the
`Type::Nothing` input case. I think a possible solution here is to allow
commands to express that they operate on `PipelineData::Empty`, rather
than `Value::Nothing`. Then, a command like `open` could have an empty
pipeline input type rather than a `Type::Nothing`, and the parse-time
and run-time pipeline input type checks know that `open` will safely
ignore an incorrectly typed input.

That being said, we have a release coming up and the above solution
might take a while to implement, so while unfortunate, bypassing input
type-checking for these problematic commands serves as a workaround to
avoid breaking changes in the release until a more robust solution is
implemented.

This PR bypasses input type-checking for the following commands:
* `load-env`: can take record of envvars as input or argument
* `nu-check`: checks input string or filename argument 
* `open`: can take filename as input or argument
* `polars when`: can be used with input, or can be chained with another
`polars when`
* `stor insert`: data record can be passed as input or argument
* `stor update`: data record can be passed as input or argument
* `format date`: `--list` ignores input value
* `into datetime`: `--list` ignores input value (also added a
`Type::Nothing` input which was missing from this command)

These commands have a similar input/output signature to the above
commands, but are working as intended:
* `cd`: The input/output signature was actually incorrect, `cd` always
ignores its input. I fixed this in this PR.
* `generate`
* `get`
* `history import` 
* `interleave`
* `into bool`
* `length`

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

As a temporary workaround, pipeline input type-checking for the
following commands has been bypassed to avoid undesirable run-time input
type checking errors which were previously not caught at parse-time:
* `open`
* `load-env`
* `format date`
* `into datetime`
* `nu-check`
* `stor insert`
* `stor update`
* `polars when`

# 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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check that you're using the standard code style
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sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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tests for the standard library

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> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->
CI became green in the time it took me to type the description 😄 

# After Submitting
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N/A
WindSoilder pushed a commit that referenced this pull request Feb 8, 2025
Fixes nushell#14960

# User-Facing Changes

- The output of non-streaming values can now be interrupted with ctrl-c:

```nushell
~> use std repeat; random chars --length 100kb | repeat 2000 | str join ' ' | collect
<data omitted>^C
Error:
  × Operation interrupted
   ╭─[entry #1:1:61]
 1 │ use std repeat; random chars --length 100kb | repeat 2000 | str join ' ' | collect
   ·                                                             ────┬───
   ·                                                                 ╰── This operation was interrupted
   ╰────
```

- When IO errors occur while printing data, nushell no longer panics:

```diff
 $ nu -c "true | print" | -

-Error:
-  x Main thread panicked.
-  |-> at crates/nu-protocol/src/errors/shell_error/io.rs:198:13
-  `-> for unknown spans with paths, use `new_internal_with_path`
+Error: nu:🐚:io::broken_pipe
+
+  x I/O error
+  `->   x Broken pipe
+
+   ,-[source:1:1]
+ 1 | true | print
+   : ^^|^
+   :   `-| Writing to stdout failed
+   :     | Broken pipe
+   `----
```
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