Commit Graph

275 Commits

Author SHA1 Message Date
Darren Schroeder
d5ce509e3a
move ast command to the debug group (#8077)
# Description

This PR tweaks how `ast` works a tiny bit by outputting values in stead
of eprintln!'s. It also moves the `ast` command into the folder with the
rest of the debug commands and changes the category to debug.

I started adding some tests but couldn't figure out a good way to do it
since every `ast` command contains spans that will be different on each
invocation.

# User-Facing 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

# 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.
2023-02-14 18:47:34 +00:00
Darren Schroeder
4c787af26d
relocate debug commands (#8071)
# Description

Now that we've landed the debug commands we were working on, let's
relocate them to an easier place to find all of them. That's what this
PR does.

The only actual code change was changing the `timeit` command to a
`Category::Debug` command. The rest is just moving things around and
hooking them up.

# User-Facing 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

# 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.
2023-02-13 16:39:07 +00:00
Jakub Žádník
b0775b3f1e
Fix hidden env vars not being hidden in closures (#8055)
# Description

This one fixes env not being hidden inside closure, reported in the
conversation under https://github.com/nushell/nushell/issues/6593

https://github.com/nushell/nushell/issues/6593
https://github.com/nushell/nushell/issues/7937 still persist. These
seems a bit more involved and might need hidden env tracking also in the
engine state... I'm not yet sure what's causing it.

Also re-enables some env-related tests and removes unused Value clone.

# User-Facing Changes

Just a bugfix

# 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.
2023-02-12 17:48:51 +00:00
Jakub Žádník
58529aa0b2
Benchmark each pipeline element (#7854)
# Description

Adds a `profile` command that profiles each pipeline element of a block
and can also recursively step into child blocks.

# Limitations
* It is implemented using pipeline metadata which currently get lost in
some circumstances (e.g.,
https://github.com/nushell/nushell/issues/4501). This means that the
profiler will lose data coming from subexpressions. This issue will
hopefully be solved in the future.
* It also does not step into individual loop iteration which I'm not
sure why but maybe that's a good thing.

# User-Facing Changes

Shouldn't change any existing behavior.

# 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.

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-02-11 21:35:48 +00:00
Darren Schroeder
f4bd78b86d
Make metadata a Category::Debug command (#8019)
# Description

This PR changes the `metadata` command to a `Category::Debug` command
for better organization.

# User-Facing Changes

Just a different category.

# 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.
2023-02-10 08:09:21 -06:00
Darren Schroeder
023e244958
view span & view files commands (#7989)
# Description

This PR does the following:
1. Adds a new command called `view span` - which shows what is at the
location of the span parameters
2. Adds a new command called `view` - which just lists all the `view`
commands.
3. Renames `view-source` to `view source`.
4. Adds a new command called `view files` - which shows you what files
are loaded into nushell's EngineState memory.
5. Added a `Category::Debug` and put these commands (and others) into
it. (`inspect` needs to be added to it, but it's not landed yet)

Spans are important to nushell. One of their uses is to show where
errors are. For instance, in this example, the leader lines pointing to
parts of the command line are able to point to `10`, `/`, and `"bob"`
because each of those items have a span.
```
> 10 / "bob"
Error: nu::parser::unsupported_operation (link)

  × Types mismatched for operation.
   ╭─[entry #8:1:1]
 1 │ 10 / "bob"
   · ─┬ ┬ ──┬──
   ·  │ │   ╰── string
   ·  │ ╰── doesn't support these values.
   ·  ╰── int
   ╰────
  help: Change int or string to be the right types and try again.
```


# Examples

## view span
Example:
```
> $env.config | get keybindings | first | debug -r
... bunch of stuff
                    span: Span {
                        start: 68065,
                        end: 68090,
                    },
                },
            ],
            span: Span {
                start: 68050,
                end: 68101,
            },
        },
    ],
    span: Span {
        start: 67927,
        end: 68108,
    },
}
```
To view the last span:
```
> view span 67927 68108 
{
        name: clear_everything
        modifier: control
        keycode: char_l
        mode: emacs
        event: [
            { send: clearscrollback }
        ]
    }
```
> To view the 2nd to last span:
```
view span 68065 68090
{ send: clearscrollback }
```
> To view the 3rd to last span:
```
view span 68050 68101
[
            { send: clearscrollback }
        ]
```

## view files
```
> view files  
╭────┬───────────────────────────────────────────────────────┬────────┬────────┬───────╮
│  # │                       filename                        │ start  │  end   │ size  │
├────┼───────────────────────────────────────────────────────┼────────┼────────┼───────┤
│  0 │ source                                                │      0 │      2 │     2 │
│  1 │ Host Environment Variables                            │      2 │   6034 │  6032 │
│  2 │ C:\Users\a_username\AppData\Roaming\nushell\plugin.nu │   6034 │  31236 │ 25202 │
│  3 │ C:\Users\a_username\AppData\Roaming\nushell\env.nu    │  31236 │  44961 │ 13725 │
│  4 │ C:\Users\a_username\AppData\Roaming\nushell\config.nu │  44961 │  76134 │ 31173 │
│  5 │ defs.nu                                               │  76134 │  91944 │ 15810 │
│  6 │ prompt\oh-my.nu                                       │  91944 │ 111523 │ 19579 │
│  7 │ weather\get-weather.nu                                │ 111523 │ 125556 │ 14033 │
│  8 │ .zoxide.nu                                            │ 125556 │ 127504 │  1948 │
│  9 │ source                                                │ 127504 │ 127561 │    57 │
│ 10 │ entry #1                                              │ 127561 │ 127585 │    24 │
│ 11 │ entry #2                                              │ 127585 │ 127595 │    10 │
╰────┴───────────────────────────────────────────────────────┴────────┴────────┴───────╯
```
`entry #x` will be each command you type in the repl (i think). so, it
may be good to filter those out sometimes.
```
> view files | where filename !~ entry
╭───┬───────────────────────────────────────────────────────┬────────┬────────┬───────╮
│ # │                       filename                        │ start  │  end   │ size  │
├───┼───────────────────────────────────────────────────────┼────────┼────────┼───────┤
│ 0 │ source                                                │      0 │      2 │     2 │
│ 1 │ Host Environment Variables                            │      2 │   6034 │  6032 │
│ 2 │ C:\Users\a_username\AppData\Roaming\nushell\plugin.nu │   6034 │  31236 │ 25202 │
│ 3 │ C:\Users\a_username\AppData\Roaming\nushell\env.nu    │  31236 │  44961 │ 13725 │
│ 4 │ C:\Users\a_username\AppData\Roaming\nushell\config.nu │  44961 │  76134 │ 31173 │
│ 5 │ defs.nu                                               │  76134 │  91944 │ 15810 │
│ 6 │ prompt\oh-my.nu                                       │  91944 │ 111523 │ 19579 │
│ 7 │ weather\get-weather.nu                                │ 111523 │ 125556 │ 14033 │
│ 8 │ .zoxide.nu                                            │ 125556 │ 127504 │  1948 │
│ 9 │ source                                                │ 127504 │ 127561 │    57 │
╰───┴───────────────────────────────────────────────────────┴────────┴────────┴───────╯
```
# User-Facing Changes

I renamed `view-source` to `view source` just to make a group of
commands. No functionality has changed in `view source`.

# 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.
2023-02-09 11:35:23 -06:00
Stefan Holderbach
4c308b7f2f
Fix def-env docs according to docs#761 (#7972)
See nushell/nushell.github.io#761

# User-Facing Changes

Docs reflect up-to-date reality

Co-authored-by: Canop <cano.petrole@gmail.com>
2023-02-06 11:00:44 +01:00
Jakub Žádník
e8d930f659
Reorder help <keyword> priority (#7929)
# Description

`help <keyword>` will now search for `<keyword>` in aliases first, then
commands. This matches the way the parser resolves aliases before
commands.

# User-Facing Changes

Not significant
2023-02-05 23:51:09 +01:00
Jérémy Audiger
99076af18b
Use imported names in Command::run signatures (#7967)
# Description

_(Thank you for improving Nushell. Please, check our [contributing
guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.)_

I opened this PR to unify the run command method. It's mainly to improve
consistency across the tree.

# User-Facing Changes

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

# 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.
2023-02-05 22:17:46 +01:00
Leon
9945241b77
Remove deprecated --numbered flag from four commands (#7777)
# Description

Remove `--numbered` from ~~`for`~~, `each`, `par-each`, `reduce` and
`each while`. These all provide indexes (numbering) via the optional
second param to their closures.

EDIT: Closes #6986.

# User-Facing Changes

Every command that had `--numbered` listed as "deprecated" in their help
docs is affected.

# 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.

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-02-02 16:59:58 -06:00
WindSoilder
8f4807020f
make do -i works with liststream (#7889)
# Description

Fixes: #7874 

It's because `do -i` doesn't handles `Pipeline::ListStream`
data(especially there is Value::Error inside the stream)

To fix it, we need to iterate through `ListStream`, check if there is
`Value::Error`. If so, just returns `Pipeline::empty()`

# User-Facing Changes

```
help commands | find arg | get search_terms | do -i { ansi strip }
```

No longer raises 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

# 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.
2023-02-02 00:04:53 +01:00
Stefan Holderbach
1ea39abcff
Apply more recent/nightly clippy lints (#7916)
# Description

- Use inline format strings in dataframe code
- Fix manual `.is_ascii_digit()` check
- Remove unnecessary `.into_iter()` calls
2023-01-30 14:06:36 +01:00
Stefan Holderbach
ab480856a5
Use variable names directly in the format strings (#7906)
# Description

Lint: `clippy::uninlined_format_args`

More readable in most situations.
(May be slightly confusing for modifier format strings
https://doc.rust-lang.org/std/fmt/index.html#formatting-parameters)

Alternative to #7865

# User-Facing Changes

None intended

# Tests + Formatting

(Ran `cargo +stable clippy --fix --workspace -- -A clippy::all -D
clippy::uninlined_format_args` to achieve this. Depends on Rust `1.67`)
2023-01-29 19:37:54 -06:00
WindSoilder
afb4209f10
make help commands search term don't generate $nothing (#7896)
# Description

Relative:
`https://github.com/nushell/nushell/pull/7889#issuecomment-1407503567`

Make `search_terms` return empty string rather than nothing, so some
other command can handle it better

# 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

# 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.
2023-01-28 18:57:26 -06:00
Reilly Wood
f4d7d19370
Name threads (#7879)
I noticed that [it's pretty easy to name threads in
Rust](https://doc.rust-lang.org/std/thread/#naming-threads). We might as
well do this; it's a nice quality of life improvement when you're
profiling something and the developers took the time to give threads
names.

Also added/cleaned up some comments while I was in the area.
2023-01-28 21:40:52 +01:00
Alex Saveau
9d6d43ee55
Fix do swallowing all output when ignoring errors (#7859)
https://github.com/nushell/nushell/pull/7204#issuecomment-1404363845
2023-01-26 13:00:48 +01:00
Reilly Wood
2e44e4d33c
Fix the build after #7204 (#7857)
Fix the build after merging
https://github.com/nushell/nushell/pull/7204. It sat for a bit too long
and I should have rerun CI before merging it, my bad.
2023-01-24 22:12:15 -08:00
Alex Saveau
5cbaabeeab
Fix pipeline stall in do during capture and remove excessive redirections (#7204)
Currently, if you run `do -i { sudo apt upgrade }`, stdin gets swallowed
and doesn't let you respond yes/no to the upgrade question. This PR
fixes that, but runs into https://github.com/nushell/nushell/issues/7205
so the tests fail.

Signed-off-by: Alex Saveau <saveau.alexandre@gmail.com>
2023-01-25 00:24:38 -05:00
Jakub Žádník
3552d03f6c
Allow main command to define top-level module command (#7764) 2023-01-22 21:34:15 +02:00
Darren Schroeder
bbe694a622
fix signature display in help commands (#7802)
# Description

This PR fixes the signature display when running `help commands`. Before
this PR, there were leading spaces in the signatures column. Now,
they're left aligned for a cleaner look.

Before:

![image](https://user-images.githubusercontent.com/343840/213711847-368fba0d-c902-47e6-b777-54de978b1ce3.png)

After:

![image](https://user-images.githubusercontent.com/343840/213711551-c5eb29c9-1d47-444b-86a1-8e14711e9771.png)


# 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

# 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.
2023-01-20 07:58:54 -06:00
Amirhossein Akhlaghpour
9b617de6f0
Continue and Break on Try/Catch (#7683)
Co-authored-by: sholderbach <sholderbach@users.noreply.github.com>
Fixes https://github.com/nushell/nushell/issues/7656
2023-01-05 21:41:51 +01:00
Jakub Žádník
86707b9972
Remove environment variable hiding from hide (#7687) 2023-01-05 20:08:43 +02:00
Reilly Wood
95d4922e44
Make stream info visible to users in describe (#7589)
Closes #7581.

After this PR, `describe` shows `(stream)` next to input that arrived at
`describe` as a `ListStream`:
```bash
〉ls | describe
table<name: string, type: string, size: filesize, modified: date> (stream)
〉[1 2 3] | each {|i| $i} | describe
list<int> (stream)
```

`describe` must collect all items of the stream to display type
information for lists and tables. If users need to avoid collecting
input, they can use the `-n`/`--no-collect` flag:

```bash
〉[1 2 3] | each {|i| $i} | describe --no-collect
stream
```
2023-01-03 21:08:05 -08:00
Jakub Žádník
8bfcea8054
Expand Nushell's help system (#7611) 2022-12-30 17:44:37 +02:00
Stefan Holderbach
b543063749
Fix the syntax highlighting in help metadata (#7628) 2022-12-29 17:45:55 +01:00
Justin Ma
38fc42d352
Fix const examples (#7610)
# Description

Fix const examples

# 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
2022-12-27 15:44:03 +08:00
Stefan Holderbach
45fe3be83e
Further cleanup of Span::test_data usage + span fixes (#7595)
# Description

Inspired by #7592

For brevity use `Value::test_{string,int,float,bool}`

Includes fixes to commands that were abusing `Span::test_data` in their
implementation. Now the call span is used where possible or the explicit
`Span::unknonw` is used.

## Command fixes
- Fix abuse of `Span::test_data()` in `query_xml`
- Fix abuse of `Span::test_data()` in `term size`
- Fix abuse of `Span::test_data()` in `seq date`
- Fix two abuses of `Span::test_data` in `nu-cli`
- Change `Span::test_data` to `Span::unknown` in `keybindings listen`
- Add proper call span to `registry query`
- Fix span use in `nu_plugin_query`
- Fix span assignment in `select`
- Use `Span::unknown` instead of `test_data` in more places

## Other
- Use `Value::test_int`/`test_float()` consistently
- More `test_string` and `test_bool`
- Fix unused imports


# User-Facing Changes

Some commands may now provide more helpful spans for downstream use in
errors
2022-12-24 07:41:57 -06:00
Leon
dd6fe6a04a
Add extra_usage messages for subcommand-only commands (#7594)
# Description

The message reads "You must use one of the following subcommands. Using
this command as-is will only produce this help message." and is added to
commands like `into`, `bytes`, `str`, etc.

# User-Facing Changes

See above.

# Tests + Formatting

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-24 07:16:29 -06:00
Leon
11bdab7e61
Change instances of Value::string("foo", Span::test_data()) to Value::test_string("foo") (#7592) 2022-12-24 10:25:38 +01:00
Leon
dd7b7311b3
Standardise the use of ShellError::UnsupportedInput and ShellError::TypeMismatch and add spans to every instance of the former (#7217)
# Description

* I was dismayed to discover recently that UnsupportedInput and
TypeMismatch are used *extremely* inconsistently across the codebase.
UnsupportedInput is sometimes used for input type-checks (as per the
name!!), but *also* used for argument type-checks. TypeMismatch is also
used for both.
I thus devised the following standard: input type-checking *only* uses
UnsupportedInput, and argument type-checking *only* uses TypeMismatch.
Moreover, to differentiate them, UnsupportedInput now has *two* error
arrows (spans), one pointing at the command and the other at the input
origin, while TypeMismatch only has the one (because the command should
always be nearby)
* In order to apply that standard, a very large number of
UnsupportedInput uses were changed so that the input's span could be
retrieved and delivered to it.
* Additionally, I noticed many places where **errors are not propagated
correctly**: there are lots of `match` sites which take a Value::Error,
then throw it away and replace it with a new Value::Error with
less/misleading information (such as reporting the error as an
"incorrect type"). I believe that the earliest errors are the most
important, and should always be propagated where possible.
* Also, to standardise one broad subset of UnsupportedInput error
messages, who all used slightly different wordings of "expected
`<type>`, got `<type>`", I created OnlySupportsThisInputType as a
variant of it.
* Finally, a bunch of error sites that had "repeated spans" - i.e. where
an error expected two spans, but `call.head` was given for both - were
fixed to use different spans.

# Example
BEFORE
```
〉20b | str starts-with 'a'
Error: nu:🐚:unsupported_input (link)

  × Unsupported input
   ╭─[entry #31:1:1]
 1 │ 20b | str starts-with 'a'
   ·   ┬
   ·   ╰── Input's type is filesize. This command only works with strings.
   ╰────

〉'a' | math cos
Error: nu:🐚:unsupported_input (link)

  × Unsupported input
   ╭─[entry #33:1:1]
 1 │ 'a' | math cos
   · ─┬─
   ·  ╰── Only numerical values are supported, input type: String
   ╰────

〉0x[12] | encode utf8
Error: nu:🐚:unsupported_input (link)

  × Unsupported input
   ╭─[entry #38:1:1]
 1 │ 0x[12] | encode utf8
   ·          ───┬──
   ·             ╰── non-string input
   ╰────
```
AFTER
```
〉20b | str starts-with 'a'
Error: nu:🐚:pipeline_mismatch (link)

  × Pipeline mismatch.
   ╭─[entry #1:1:1]
 1 │ 20b | str starts-with 'a'
   ·   ┬   ───────┬───────
   ·   │          ╰── only string input data is supported
   ·   ╰── input type: filesize
   ╰────

〉'a' | math cos
Error: nu:🐚:pipeline_mismatch (link)

  × Pipeline mismatch.
   ╭─[entry #2:1:1]
 1 │ 'a' | math cos
   · ─┬─   ────┬───
   ·  │        ╰── only numeric input data is supported
   ·  ╰── input type: string
   ╰────

〉0x[12] | encode utf8
Error: nu:🐚:pipeline_mismatch (link)

  × Pipeline mismatch.
   ╭─[entry #3:1:1]
 1 │ 0x[12] | encode utf8
   · ───┬──   ───┬──
   ·    │        ╰── only string input data is supported
   ·    ╰── input type: binary
   ╰────
```

# User-Facing Changes

Various error messages suddenly make more sense (i.e. have two arrows
instead of one).

# Tests + Formatting

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-23 01:48:53 -05:00
Leon
9d1cb1bfaf
Make $in work in catch closures (#7458)
# Description

This now works:
```
try { 'x' | math abs } catch { $in }
```

# User-Facing Changes

See above.

# Tests + Formatting

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-22 09:35:41 -06:00
Jakub Žádník
23a5c5dc09
Remove shape-directed import pattern parsing (#7570) 2022-12-22 16:36:13 +02:00
Jakub Žádník
3a2c7900d6
Initial support for parse-time constants (#7436) 2022-12-22 00:21:03 +02:00
Stefan Holderbach
4e1f94026c
Add more input/output type annotations (#7532) 2022-12-21 20:20:46 +01:00
Leon
774769a7ad
color_config now accepts closures as color values (#7141)
# Description

Closes #6909. You can now add closures to your `color_config` themes.
Whenever a value would be printed with `table`, the closure is run with
the value piped-in. The closure must return either a {fg,bg,attr} record
or a color name (`'light_red'` etc.). This returned style is used to
colour the value.

This is entirely backwards-compatible with existing config.nu files.

Example code excerpt:
```
let my_theme = {
    header: green_bold
    bool: { if $in { 'light_cyan' } else { 'light_red' } }
    int: purple_bold
    filesize: { |e| if $e == 0b { 'gray' } else if $e < 1mb { 'purple_bold' } else { 'cyan_bold' } }
    duration: purple_bold
    date: { (date now) - $in | if $in > 1wk { 'cyan_bold' } else if $in > 1day { 'green_bold' } else { 'yellow_bold' } }
    range: yellow_bold
    string: { if $in =~ '^#\w{6}$' { $in } else { 'white' } }
    nothing: white
```
Example output with this in effect:
![2022-11-16 12 47 23 AM - style_computer
rs_-_nushell_-_VSCodium](https://user-images.githubusercontent.com/83939/201952558-482de05d-69c7-4bf2-91fc-d0964bf71264.png)
![2022-11-16 12 39 41 AM - style_computer
rs_-_nushell_-_VSCodium](https://user-images.githubusercontent.com/83939/201952580-2384bb86-b680-40fe-8192-71bae396c738.png)
![2022-11-15 09 21 54 PM - run_external
rs_-_nushell_-_VSCodium](https://user-images.githubusercontent.com/83939/201952601-343fc15d-e4a8-4a92-ad89-9a7d17d42748.png)

Slightly important notes:

* Some color_config names, namely "separator", "empty" and "hints", pipe
in `null` instead of a value.
* Currently, doing anything non-trivial inside a closure has an
understandably big perf hit. I currently do not actually recommend
something like `string: { if $in =~ '^#\w{6}$' { $in } else { 'white' }
}` for serious work, mainly because of the abundance of string-type data
in the world. Nevertheless, lesser-used types like "date" and "duration"
work well with this.
* I had to do some reorganisation in order to make it possible to call
`eval_block()` that late in table rendering. I invented a new struct
called "StyleComputer" which holds the engine_state and stack of the
initial `table` command (implicit or explicit).
* StyleComputer has a `compute()` method which takes a color_config name
and a nu value, and always returns the correct Style, so you don't have
to worry about A) the color_config value was set at all, B) whether it
was set to a closure or not, or C) which default style to use in those
cases.
* Currently, errors encountered during execution of the closures are
thrown in the garbage. Any other ideas are welcome. (Nonetheless, errors
result in a huge perf hit when they are encountered. I think what should
be done is to assume something terrible happened to the user's config
and invalidate the StyleComputer for that `table` run, thus causing
subsequent output to just be Style::default().)
* More thorough tests are forthcoming - ran into some difficulty using
`nu!` to take an alternative config, and for some reason `let-env config
=` statements don't seem to work inside `nu!` pipelines(???)
* The default config.nu has not been updated to make use of this yet. Do
tell if you think I should incorporate that into this.

# User-Facing Changes

See above.

# 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 --features=extra -- -D warnings -D
clippy::unwrap_used -A clippy::needless_collect` to check that you're
using the standard code style
- `cargo test --workspace --features=extra` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-17 07:07:56 -06:00
Reilly Wood
e72cecf457
Remove unnecessary echo uses from examples (#7500)
`echo` tends to confuse new Nu users; they expect it to work like
`print` when it just passes a value to the next stage of the pipeline.

We haven't quite figured out what to do about `echo` in the long run,
but I think a good start is to remove `echo` from command examples where
it would be unnecessary and arguably unidiomatic.
2022-12-16 11:51:00 -05:00
Reilly Wood
e215fbbd08
Add helper method to check whether ctrl+c was pressed, adopt it (#7482)
I've been working on streaming and pipeline interruption lately. It was
bothering me that checking ctrl+c (something we want to do often) always
requires a bunch of boilerplate like:
```rust
use std::sync::atomic::Ordering;

if let Some(ctrlc) = &engine_state.ctrlc {
     if ctrlc.load(Ordering::SeqCst) {
          ...
```
I added a helper method to cut that down to:

```rust
if nu_utils::ctrl_c::was_pressed(&engine_state.ctrlc) {
    ...
```
2022-12-15 09:39:24 -08:00
Stefan Holderbach
735a7a21bd
Add example showing first class closure to do (#7473)
# Description

Demonstrates that you can use `do` to execute stored closures and
evaluate their captures properly.

# Tests + Formatting

As an example test increases coverage of the usage to execute first
class closures.
Additional tests using that found in
`tests/shell/pipeline/commands/internal.rs`
2022-12-14 20:55:00 +01:00
WindSoilder
e0bf17930b
refactor: introduce is_external_failed to PipelineData, and simplify try logic (#7476)
# Description

Just spot that there are some duplicate code about checking external
runs to failed, is pr is trying to refactor it and reduce lines of code

# User-Facing Changes

NaN

# Tests + Formatting

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-14 10:25:32 -08:00
WindSoilder
db3177a5aa
break for, loop, while execution when external command runs to failed (#7475)
Fixes: #7467

# User-Facing Changes

## for
```
❯ for i in 1..2 { echo 1;  ^false }
1
```

## loop
```
❯ loop { echo bb; ^false }
bb
```

## while
```
❯ mut x = 1; while $x < 3 { $x = $x + 1; echo bb; ^false }
bb
```
2022-12-14 16:20:18 +01:00
Leon
52278f8562
Help messages: edit various instances of "block" to "closure" (#7470) 2022-12-14 14:02:41 +01:00
JT
0242b30027
Revert "Add pipeline operators to help" (#7454)
Reverts nushell/nushell#7449
2022-12-13 16:49:00 +13:00
JT
5b5f1d1b92
Add pipeline operators to help (#7449)
# 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.)_

# 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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-13 11:31:03 +13:00
WindSoilder
585ab56ea4
in for, loop, while, auto print final value in each iteration (#7433)
# Description

Fixes: #7404 
Fixes: #7402 

## About change
In `eval_block`, all pipelines(or called statements?) result will be
printed except the last one, the last one is returned by `eval_block`
function.

So if we want to print the last statement in eval block, we just need to
print that value.

# User-Facing Changes

### for
```
❯ for _ in 1..2 { echo "a" }
a
a
```

### while
```
❯ mut x = 1; while $x < 3 { $x = $x + 1; echo bb; }
bb
bb
```

### loop
```
❯ mut total = 0; loop {
∙     if $total > 1 {
∙         break
∙     } else {
∙         $total += 1
∙     }
∙     echo 3
∙ }
3
3
```

# Tests + Formatting

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-12 05:46:03 +13:00
Jakub Žádník
4d7d97e0e6
Simplify FILE_PWD setting in 'overlay use' (#7425)
# Description

Changes the `FILE_PWD` setting mechanism to match the one used in the
`use` command.

Fixes https://github.com/nushell/nushell/pull/7424

# User-Facing Changes

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-10 19:23:55 +02:00
Leon
220b105efb
Reduced LOC by replacing several instances of Value::Int {}, Value::Float{}, Value::Bool {}, and Value::String {} with Value::int(), Value::float(), Value::boolean() and Value::string() (#7412)
# Description

While perusing Value.rs, I noticed the `Value::int()`, `Value::float()`,
`Value::boolean()` and `Value::string()` constructors, which seem
designed to make it easier to construct various Values, but which aren't
used often at all in the codebase. So, using a few find-replaces
regexes, I increased their usage. This reduces overall LOC because
structures like this:
```
Value::Int {
  val: a,
  span: head
}
```
are changed into
```
Value::int(a, head)
```
and are respected as such by the project's formatter.
There are little readability concerns because the second argument to all
of these is `span`, and it's almost always extremely obvious which is
the span at every callsite.

# User-Facing Changes

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-09 11:37:51 -05:00
raccmonteiro
b56ad92e25
++= appendAssign operator (#7346) (#7354)
# Description

Closes  https://github.com/nushell/nushell/issues/7346



# Tests + Formatting
```
> mut a = [1 2 3]
> $a ++= [4 5 6]
> $a
[1 2 3 4 5 6]
```
2022-12-09 11:20:58 -05:00
JT
b7572f107f
Remove and/or from 'help operators' (#7388)
# 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.)_

# 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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-07 18:05:51 -06:00
JT
fa15a2856a
Add OneOf shape to fix else (#7385)
# Description

fixes #7384 

This is a stop-gap fix until we remove type-directed parsing. With this,
you can create a `OneOf` shape that can be one of a list of syntax
shapes. This gives you a little more control than you get with `Any`,
allowing you to add `Block` without breaking other parsing rules.

# User-Facing Changes

`else` block will no longer capture variables as it will now use a block
instead of a closure.

# Tests + Formatting

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

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

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-08 08:58:54 +13:00
JT
eaec480f42
Improve empty pipelines (#7383)
# Description

This fix changes pipelines to allow them to actually be empty. Mapping
over empty pipelines gives empty pipelines. Empty pipelines immediately
return `None` when iterated.

This removes a some of where `Span::new(0, 0)` was coming from, though
there are other cases where we still use it.

# User-Facing Changes

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

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-12-08 07:31:57 +13:00