Commit Graph

1355 Commits

Author SHA1 Message Date
Devyn Cairns
ff41cf91ef
Misc doc fixes (#12266)
# Description

Just a bunch of miscellaneous fixes to the Rust documentation that I
found recently while doing
a pass on some things.

# User-Facing Changes
None
2024-03-23 07:26:08 -05:00
Darren Schroeder
1d418030e1
bump rust-toolchain to 1.75.0 (#12258)
# Description

With the release of Rust 1.77.0 today we're able to bump the
rust-toolchain for nushell to 1.75.0.

# 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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crates/nu-std"` to run the tests for the standard library

> **Note**
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2024-03-21 13:23:39 -05:00
Devyn Cairns
efe25e3f58
Better generic errors for plugins (and perhaps scripts) (#12236)
# Description
This makes `LabeledError` much more capable of representing close to
everything a `miette::Diagnostic` can, including `ShellError`, and
allows plugins to generate multiple error spans, codes, help, etc.

`LabeledError` is now embeddable within `ShellError` as a transparent
variant.

This could also be used to improve `error make` and `try/catch` to
reflect `LabeledError` exactly in the future.

Also cleaned up some errors in existing plugins.

# User-Facing Changes
Breaking change for plugins. Nicer errors for users.
2024-03-21 12:27:21 +01:00
Devyn Cairns
fdf7f28d07
Address feedback from PR #12229 (#12242)
# Description
@sholderbach left a very helpful review and this just implements the
suggestions he made.

Didn't notice any difference in performance, but there could potentially
be for a long running Nushell session or one that loads a lot of stuff.

I also caught a bug where nu-protocol won't build without `plugin`
because of the previous conditional import. Oops. Fixed.

# User-Facing Changes
`blocks` and `modules` type in `EngineState` changed again. Shouldn't
affect plugins or anything else though really

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

# After Submitting

---------

Co-authored-by: sholderbach <sholderbach@users.noreply.github.com>
2024-03-20 20:16:18 +01:00
Stefan Holderbach
ec528c0626
Refactor source cache into CachedFile struct (#12240)
# Description
Get rid of two parallel `Vec`s in `StateDelta` and `EngineState`, that
also duplicated span information. Use a struct with documenting fields.

Also use `Arc<str>` and `Arc<[u8]>` for the allocations as they are
never modified and cloned often (see #12229 for the first improvement).
This also makes the representation more compact as no capacity is
necessary.

# User-Facing Changes
API breakage on `EngineState`/`StateWorkingSet`/`StateDelta` that should
not really affect plugin authors.
2024-03-20 19:43:50 +01:00
Devyn Cairns
cf321ab510
Make EngineState clone cheaper with Arc on all of the heavy objects (#12229)
# Description
This makes many of the larger objects in `EngineState` into `Arc`, and
uses `Arc::make_mut` to do clone-on-write if the reference is not
unique. This is generally very cheap, giving us the best of both worlds
- allowing us to mutate without cloning if we have an exclusive
reference, and cloning if we don't.

This started as more of a curiosity for me after remembering that
`Arc::make_mut` exists and can make using `Arc` for mostly immutable
data that sometimes needs to be changed very convenient, and also after
hearing someone complain about memory usage on Discord - this is a
somewhat significant win for that.

The exact objects that were wrapped in `Arc`:

- `files`, `file_contents` - the strings and byte buffers
- `decls` - the whole `Vec`, but mostly to avoid lots of individual
`malloc()` calls on Clone rather than for memory usage
- `blocks` - the blocks themselves, rather than the outer Vec
- `modules` - the modules themselves, rather than the outer Vec
- `env_vars`, `previous_env_vars` - the entire maps
- `config`

The changes required were relatively minimal, but this is a breaking API
change. In particular, blocks are added as Arcs, to allow the parser
cache functionality to work.

With my normal nu config, running on Linux, this saves me about 15 MiB
of process memory usage when running interactively (65 MiB → 50 MiB).

This also makes quick command executions cheaper, particularly since
every REPL loop now involves a clone of the engine state so that we can
recover from a panic. It also reduces memory usage where engine state
needs to be cloned and sent to another thread or kept within an
iterator.

# User-Facing Changes
Shouldn't be any, since it's all internal stuff, but it does change some
public interfaces so it's a breaking change
2024-03-19 19:07:00 +01:00
Devyn Cairns
6795ad7e33
Make custom value type handling more consistent (#12230)
[Context on
Discord](https://discord.com/channels/601130461678272522/855947301380947968/1219425984990806207)

# Description

- Rename `CustomValue::value_string()` to `type_name()` to reflect its
usage better.
- Change print behavior to always call `to_base_value()` first, to give
the custom value better control over the output.
- Change `describe --detailed` to show the type name as the subtype,
rather than trying to describe the base value.
- Change custom `Type` to use `type_name()` rather than `typetag_name()`
to make things like `PluginCustomValue` more transparent

One question: should `describe --detailed` still include a description
of the base value somewhere? I'm torn on it, it seems possibly useful
for some things (maybe sqlite databases?), but having `describe -d` not
include the custom type name anywhere felt weird. Another option would
be to add another method to `CustomValue` for info to be displayed in
`describe`, so that it can be more type-specific?

# User-Facing Changes
Everything above has implications for printing and `describe` on custom
values

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
2024-03-19 11:09:59 +01:00
Devyn Cairns
1cb5221f01
Add Value::recurse_mut() to save duplicated code in PluginCustomValue (#12218)
# Description

We do a lot of visiting contained values in the serialization / validity
functions within `PluginCustomValue` utils. This adds
`Value::recurse_mut()` which wraps up most of that logic into something
that can be reused.
2024-03-16 15:54:42 +01:00
Ian Manske
c950269575
Fix $in value for insert closure (#12209)
# Description
Fixes #12193 where the `$in` value may be null for closures provided to
`insert`.

# User-Facing Changes
The `$in` value will now always be the same as the closure parameter for
`insert`.
2024-03-14 16:43:03 -05:00
Devyn Cairns
9cf2e873b5
Reorganize plugin API around commands (#12170)
[Context on
Discord](https://discord.com/channels/601130461678272522/855947301380947968/1216517833312309419)

# Description
This is a significant breaking change to the plugin API, but one I think
is worthwhile. @ayax79 mentioned on Discord that while trying to start
on a dataframes plugin, he was a little disappointed that more wasn't
provided in terms of code organization for commands, particularly since
there are *a lot* of `dfr` commands.

This change treats plugins more like miniatures of the engine, with
dispatch of the command name being handled inherently, each command
being its own type, and each having their own signature within the trait
impl for the command type rather than having to find a way to centralize
it all into one `Vec`.

For the example plugins that have multiple commands, I definitely like
how this looks a lot better. This encourages doing code organization the
right way and feels very good.

For the plugins that have only one command, it's just a little bit more
boilerplate - but still worth it, in my opinion.

The `Box<dyn PluginCommand<Plugin = Self>>` type in `commands()` is a
little bit hairy, particularly for Rust beginners, but ultimately not so
bad, and it gives the desired flexibility for shared state for a whole
plugin + the individual commands.

# User-Facing Changes
Pretty big breaking change to plugin API, but probably one that's worth
making.

```rust
use nu_plugin::*;
use nu_protocol::{PluginSignature, PipelineData, Type, Value};

struct LowercasePlugin;
struct Lowercase;

// Plugins can now have multiple commands
impl PluginCommand for Lowercase {
    type Plugin = LowercasePlugin;

    // The signature lives with the command
    fn signature(&self) -> PluginSignature {
        PluginSignature::build("lowercase")
            .usage("Convert each string in a stream to lowercase")
            .input_output_type(Type::List(Type::String.into()), Type::List(Type::String.into()))
    }

    // We also provide SimplePluginCommand which operates on Value like before
    fn run(
        &self,
        plugin: &LowercasePlugin,
        engine: &EngineInterface,
        call: &EvaluatedCall,
        input: PipelineData,
    ) -> Result<PipelineData, LabeledError> {
        let span = call.head;
        Ok(input.map(move |value| {
            value.as_str()
                .map(|string| Value::string(string.to_lowercase(), span))
                // Errors in a stream should be returned as values.
                .unwrap_or_else(|err| Value::error(err, span))
        }, None)?)
    }
}

// Plugin now just has a list of commands, and the custom value op stuff still goes here
impl Plugin for LowercasePlugin {
    fn commands(&self) -> Vec<Box<dyn PluginCommand<Plugin=Self>>> {
        vec![Box::new(Lowercase)]
    }
}

fn main() {
    serve_plugin(&LowercasePlugin{}, MsgPackSerializer)
}
```

Time this however you like - we're already breaking stuff for 0.92, so
it might be good to do it now, but if it feels like a lot all at once,
it could wait.

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

# After Submitting
- [ ] Update examples in the book
- [x] Fix #12088 to match - this change would actually simplify it a
lot, because the methods are currently just duplicated between `Plugin`
and `StreamingPlugin`, but they only need to be on `Plugin` with this
change
2024-03-14 16:40:02 -05:00
Ian Manske
b6c7656194
IO and redirection overhaul (#11934)
# Description
The PR overhauls how IO redirection is handled, allowing more explicit
and fine-grain control over `stdout` and `stderr` output as well as more
efficient IO and piping.

To summarize the changes in this PR:
- Added a new `IoStream` type to indicate the intended destination for a
pipeline element's `stdout` and `stderr`.
- The `stdout` and `stderr` `IoStream`s are stored in the `Stack` and to
avoid adding 6 additional arguments to every eval function and
`Command::run`. The `stdout` and `stderr` streams can be temporarily
overwritten through functions on `Stack` and these functions will return
a guard that restores the original `stdout` and `stderr` when dropped.
- In the AST, redirections are now directly part of a `PipelineElement`
as a `Option<Redirection>` field instead of having multiple different
`PipelineElement` enum variants for each kind of redirection. This
required changes to the parser, mainly in `lite_parser.rs`.
- `Command`s can also set a `IoStream` override/redirection which will
apply to the previous command in the pipeline. This is used, for
example, in `ignore` to allow the previous external command to have its
stdout redirected to `Stdio::null()` at spawn time. In contrast, the
current implementation has to create an os pipe and manually consume the
output on nushell's side. File and pipe redirections (`o>`, `e>`, `e>|`,
etc.) have precedence over overrides from commands.

This PR improves piping and IO speed, partially addressing #10763. Using
the `throughput` command from that issue, this PR gives the following
speedup on my setup for the commands below:
| Command | Before (MB/s) | After (MB/s) | Bash (MB/s) |
| --------------------------- | -------------:| ------------:|
-----------:|
| `throughput o> /dev/null` | 1169 | 52938 | 54305 |
| `throughput \| ignore` | 840 | 55438 | N/A |
| `throughput \| null` | Error | 53617 | N/A |
| `throughput \| rg 'x'` | 1165 | 3049 | 3736 |
| `(throughput) \| rg 'x'` | 810 | 3085 | 3815 |

(Numbers above are the median samples for throughput)

This PR also paves the way to refactor our `ExternalStream` handling in
the various commands. For example, this PR already fixes the following
code:
```nushell
^sh -c 'echo -n "hello "; sleep 0; echo "world"' | find "hello world"
```
This returns an empty list on 0.90.1 and returns a highlighted "hello
world" on this PR.

Since the `stdout` and `stderr` `IoStream`s are available to commands
when they are run, then this unlocks the potential for more convenient
behavior. E.g., the `find` command can disable its ansi highlighting if
it detects that the output `IoStream` is not the terminal. Knowing the
output streams will also allow background job output to be redirected
more easily and efficiently.

# User-Facing Changes
- External commands returned from closures will be collected (in most
cases):
  ```nushell
  1..2 | each {|_| nu -c "print a" }
  ```
This gives `["a", "a"]` on this PR, whereas this used to print "a\na\n"
and then return an empty list.

  ```nushell
  1..2 | each {|_| nu -c "print -e a" }
  ```
This gives `["", ""]` and prints "a\na\n" to stderr, whereas this used
to return an empty list and print "a\na\n" to stderr.

- Trailing new lines are always trimmed for external commands when
piping into internal commands or collecting it as a value. (Failure to
decode the output as utf-8 will keep the trailing newline for the last
binary value.) In the current nushell version, the following three code
snippets differ only in parenthesis placement, but they all also have
different outputs:

  1. `1..2 | each { ^echo a }`
     ```
     a
     a
     ╭────────────╮
     │ empty list │
     ╰────────────╯
     ```
  2. `1..2 | each { (^echo a) }`
     ```
     ╭───┬───╮
     │ 0 │ a │
     │ 1 │ a │
     ╰───┴───╯
     ```
  3. `1..2 | (each { ^echo a })`
     ```
     ╭───┬───╮
     │ 0 │ a │
     │   │   │
     │ 1 │ a │
     │   │   │
     ╰───┴───╯
     ```

  But in this PR, the above snippets will all have the same output:
  ```
  ╭───┬───╮
  │ 0 │ a │
  │ 1 │ a │
  ╰───┴───╯
  ```

- All existing flags on `run-external` are now deprecated.

- File redirections now apply to all commands inside a code block:
  ```nushell
  (nu -c "print -e a"; nu -c "print -e b") e> test.out
  ```
This gives "a\nb\n" in `test.out` and prints nothing. The same result
would happen when printing to stdout and using a `o>` file redirection.

- External command output will (almost) never be ignored, and ignoring
output must be explicit now:
  ```nushell
  (^echo a; ^echo b)
  ```
This prints "a\nb\n", whereas this used to print only "b\n". This only
applies to external commands; values and internal commands not in return
position will not print anything (e.g., `(echo a; echo b)` still only
prints "b").

- `complete` now always captures stderr (`do` is not necessary).

# After Submitting
The language guide and other documentation will need to be updated.
2024-03-14 15:51:55 -05:00
Yash Thakur
0ff36dfe42
Canonicalize each component of config files (#12167)
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# Description
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Because `std::fs::canonicalize` requires the path to exist, this PR
makes it so that when canonicalizing any config file, the
`$nu.default-config-dir/nushell` part is canonicalized first, then
`$nu.default-config-dir/nushell/foo.nu` is canonicalized.

This should also fix the issue @devyn pointed out
[here](https://github.com/nushell/nushell/pull/12118#issuecomment-1989546708)
where a couple of the tests failed if one's `~/.config/nushell` folder
was actually a symlink to a different folder. The tests previously
didn't canonicalize the expected paths.

I was going to make a PR that caches the config directory on startup (as
suggested by fdncred and Ian in Discord), but I can make that part of
this PR if we want to avoid creating unnecessary PRs. I think it
probably makes more sense to separate them though.

# User-Facing Changes
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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:

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

# After Submitting
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documentation](https://github.com/nushell/nushell.github.io) after the
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2024-03-13 06:26:06 -05:00
Devyn Cairns
73f3c0b60b
Support for all custom value operations on plugin custom values (#12088)
# Description

Adds support for the following operations on plugin custom values, in
addition to `to_base_value` which was already present:

- `follow_path_int()`
- `follow_path_string()`
- `partial_cmp()`
- `operation()`
- `Drop` (notification, if opted into with
`CustomValue::notify_plugin_on_drop`)

There are additionally customizable methods within the `Plugin` and
`StreamingPlugin` traits for implementing these functions in a way that
requires access to the plugin state, as a registered handle model such
as might be used in a dataframes plugin would.

`Value::append` was also changed to handle custom values correctly.

# User-Facing Changes

- Signature of `CustomValue::follow_path_string` and
`CustomValue::follow_path_int` changed to give access to the span of the
custom value itself, useful for some errors.
- Plugins using custom values have to be recompiled because the engine
will try to do custom value operations that aren't supported
- Plugins can do more things 🎉 

# Tests + Formatting
Tests were added for all of the new custom values functionality.

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

# After Submitting
- [ ] Document protocol reference `CustomValueOp` variants:
  - [ ] `FollowPathInt`
  - [ ] `FollowPathString`
  - [ ] `PartialCmp`
  - [ ] `Operation`
  - [ ] `Dropped`
- [ ] Document `notify_on_drop` optional field in `PluginCustomValue`
2024-03-12 10:37:08 +01:00
Ian Manske
26786a759e
Fix ignored clippy lints (#12160)
# Description
Fixes some ignored clippy lints.

# User-Facing Changes
Changes some signatures and return types to `&dyn Command` instead of
`&Box<dyn Command`, but I believe this is only an internal change.
2024-03-11 19:46:04 +01:00
Stefan Holderbach
77379d7b3d
Remove outdated doccomment on EngineState (#12158)
Part of the doccomment was an implementation note on the `im` crate that
hasn't been used for ages.
(If I recall we maybe even received a comment on discord on this)
2024-03-11 14:57:28 +00:00
Yash Thakur
f6853fd636
Use XDG_CONFIG_HOME before default config directory (#12118)
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Closes #12103

# Description
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As described in #12103, this PR makes Nushell use `XDG_CONFIG_HOME` as
the config directory if it exists. Otherwise, it uses the old behavior,
which was to use `dirs_next::config_dir()`.

Edit: We discussed choosing between `XDG_CONFIG_HOME` and the default
config directory in Discord and decided against it, at least for now.

<s>@kubouch also suggested letting users choose between
`XDG_CONFIG_HOME` and the default config directory if config files
aren't found on startup and `XDG_CONFIG_HOME` is set to a value
different from the default config directory</s>

On Windows and MacOS, if the `XDG_CONFIG_HOME` variable is set but
`XDG_CONFIG_HOME` is either empty or doesn't exist *and* the old config
directory is non-empty, Nushell will issue a warning on startup saying
that it won't move files from the old config directory to the new one.
To do this, I had to add a `nu_path::config_dir_old()` function. I
assume that at some point, we will remove the warning message and the
function can be removed too. Alternatively, instead of having that
function there, `main.rs` could directly call `dirs_next::config_dir()`.

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

When `$env.XDG_CONFIG_HOME` is set to an absolute path, Nushell will use
`$"($env.XDG_CONFIG_HOME)/nushell"` as its config directory (previously,
this only worked on Linux).

To use `App Data\Roaming` (Windows) or `Library/Application Support`
(MacOS) instead (the old behavior), one can either leave
`XDG_CONFIG_HOME` unset or set it to an empty string.

If `XDG_CONFIG_HOME` is set, but to a non-absolute/invalid path, Nushell
will report an error on startup and use the default config directory
instead:


![image](https://github.com/nushell/nushell/assets/45539777/a434fe04-b7c8-4e95-b50c-80628008ad08)

On Windows and MacOS, if the `XDG_CONFIG_HOME` variable is set but
`XDG_CONFIG_HOME` is either empty or doesn't exist *and* the old config
directory is non-empty, Nushell will issue a warning on startup saying
that it won't move files from the old config directory to the new one.


![image](https://github.com/nushell/nushell/assets/45539777/1686cc17-4083-4c12-aecf-1d832460ca57)


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

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

The existing config path tests have been modified to use
`XDG_CONFIG_HOME` to change the config directory on all OSes, not just
Linux.

# 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 documentation will have to be updated to note that Nushell uses
`XDG_CONFIG_HOME` now. As @fdncred pointed out, it's possible for people
to set `XDG_CONFIG_HOME` to, say, `~/.config/nushell` rather than
`~/.config`, so the documentation could warn about that mistake.
2024-03-11 06:15:46 -05:00
Stefan Holderbach
27edef4874
Bump reedline to dev (and strum) (#12150)
Resolve version duplication around `strum(_macros)`

- Pull recent reedline (`strum` update)
- Update `strum` in `nu-protocol`
2024-03-10 20:31:54 +01:00
Stefan Holderbach
f695ba408a
Restructure nu-protocol in more meaningful units (#11917)
This is partially "feng-shui programming" of moving things to new
separate places.

The later commits include "`git blame` tollbooths" by moving out chunks
of code into new files, which requires an extra step to track things
with `git blame`. We can negiotiate if you want to keep particular
things in their original place.

If egregious I tried to add a bit of documentation. If I see something
that is unused/unnecessarily `pub` I will try to remove that.


- Move `nu_protocol::Exportable` to `nu-parser`
- Guess doccomment for `Exportable`
- Move `Unit` enum from `value` to `AST`
- Move engine state `Variable` def into its folder
- Move error-related files in `nu-protocol` subdir
- Move `pipeline_data` module into its own folder
- Move `stream.rs` over into the `pipeline_data` mod
- Move `PipelineMetadata` into its own file
- Doccomment `PipelineMetadata`
- Remove unused `is_leap_year` in `value/mod`
- Note about criminal `type_compatible` helper
- Move duration fmting into new `value/duration.rs`
- Move filesize fmting logic to new `value/filesize`
- Split reexports from standard imports in `value/mod`
- Doccomment trait `CustomValue`
- Polish doccomments and intradoc links
2024-03-10 18:45:45 +01:00
Devyn Cairns
bc19be25b1
Keep plugins persistently running in the background (#12064)
# Description
This PR uses the new plugin protocol to intelligently keep plugin
processes running in the background for further plugin calls.

Running plugins can be seen by running the new `plugin list` command,
and stopped by running the new `plugin stop` command.

This is an enhancement for the performance of plugins, as starting new
plugin processes has overhead, especially for plugins in languages that
take a significant amount of time on startup. It also enables plugins
that have persistent state between commands, making the migration of
features like dataframes and `stor` to plugins possible.

Plugins are automatically stopped by the new plugin garbage collector,
configurable with `$env.config.plugin_gc`:

```nushell
  $env.config.plugin_gc = {
      # Configuration for plugin garbage collection
      default: {
          enabled: true # true to enable stopping of inactive plugins
          stop_after: 10sec # how long to wait after a plugin is inactive to stop it
      }
      plugins: {
          # alternate configuration for specific plugins, by name, for example:
          #
          # gstat: {
          #     enabled: false
          # }
      }
  }
```

If garbage collection is enabled, plugins will be stopped after
`stop_after` passes after they were last active. Plugins are counted as
inactive if they have no running plugin calls. Reading the stream from
the response of a plugin call is still considered to be activity, but if
a plugin holds on to a stream but the call ends without an active
streaming response, it is not counted as active even if it is reading
it. Plugins can explicitly disable the GC as appropriate with
`engine.set_gc_disabled(true)`.

The `version` command now lists plugin names rather than plugin
commands. The list of plugin commands is accessible via `plugin list`.

Recommend doing this together with #12029, because it will likely force
plugin developers to do the right thing with mutability and lead to less
unexpected behavior when running plugins nested / in parallel.

# User-Facing Changes
- new command: `plugin list`
- new command: `plugin stop`
- changed command: `version` (now lists plugin names, rather than
commands)
- new config: `$env.config.plugin_gc`
- Plugins will keep running and be reused, at least for the configured
GC period
- Plugins that used mutable state in weird ways like `inc` did might
misbehave until fixed
- Plugins can disable GC if they need to
- Had to change plugin signature to accept `&EngineInterface` so that
the GC disable feature works. #12029 does this anyway, and I'm expecting
(resolvable) conflicts with that

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

Because there is some specific OS behavior required for plugins to not
respond to Ctrl-C directly, I've developed against and tested on both
Linux and Windows to ensure that works properly.

# After Submitting
I think this probably needs to be in the book somewhere
2024-03-09 17:10:22 -06:00
Devyn Cairns
430fb1fcb6
Add support for engine calls from plugins (#12029)
# Description

This allows plugins to make calls back to the engine to get config,
evaluate closures, and do other things that must be done within the
engine process.

Engine calls can both produce and consume streams as necessary. Closures
passed to plugins can both accept stream input and produce stream output
sent back to the plugin.

Engine calls referring to a plugin call's context can be processed as
long either the response hasn't been received, or the response created
streams that haven't ended yet.

This is a breaking API change for plugins. There are some pretty major
changes to the interface that plugins must implement, including:

1. Plugins now run with `&self` and must be `Sync`. Executing multiple
plugin calls in parallel is supported, and there's a chance that a
closure passed to a plugin could invoke the same plugin. Supporting
state across plugin invocations is left up to the plugin author to do in
whichever way they feel best, but the plugin object itself is still
shared. Even though the engine doesn't run multiple plugin calls through
the same process yet, I still considered it important to break the API
in this way at this stage. We might want to consider an optional
threadpool feature for performance.

2. Plugins take a reference to `EngineInterface`, which can be cloned.
This interface allows plugins to make calls back to the engine,
including for getting config and running closures.

3. Plugins no longer take the `config` parameter. This can be accessed
from the interface via the `.get_plugin_config()` engine call.


# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Not only does this have plugin protocol changes, it will require plugins
to make some code changes before they will work again. But on the plus
side, the engine call feature is extensible, and we can add more things
to it as needed.

Plugin maintainers will have to change the trait signature at the very
least. If they were using `config`, they will have to call
`engine.get_plugin_config()` instead.

If they were using the mutable reference to the plugin, they will have
to come up with some strategy to work around it (for example, for `Inc`
I just cloned it). This shouldn't be such a big deal at the moment as
it's not like plugins have ever run as daemons with persistent state in
the past, and they don't in this PR either. But I thought it was
important to make the change before we support plugins as daemons, as an
exclusive mutable reference is not compatible with parallel plugin
calls.

I suggest this gets merged sometime *after* the current pending release,
so that we have some time to adjust to the previous plugin protocol
changes that don't require code changes before making ones that do.

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


# After Submitting
I will document the additional protocol features (`EngineCall`,
`EngineCallResponse`), and constraints on plugin call processing if
engine calls are used - basically, to be aware that an engine call could
result in a nested plugin call, so the plugin should be able to handle
that.
2024-03-09 11:26:30 -06:00
Raphael Gaschignard
d8f13b36b1
Allow for stacks to have parents (#11654)
This is another attempt on #11288 

This allows for a `Stack` to have a parent stack (behind an `Arc`). This
is being added to avoid constant stack copying in REPL code.

Concretely the following changes are included here:
- `Stack` can now have a `parent_stack`, pointing to another stack
- variable lookups can fallback to this parent stack (env vars and
everything else is still copied)
- REPL code has been reworked so that we use parenting rather than
cloning. A REPL-code-specific trait helps to ensure that we do not
accidentally trigger a full clone of the main stack
- A property test has been added to make sure that parenting "looks the
same" as cloning for consumers of `Stack` objects

---------

Co-authored-by: Raphael Gaschignard <rtpg@rokkenjima.local>
Co-authored-by: Ian Manske <ian.manske@pm.me>
2024-03-09 17:55:39 +01:00
Jakub Žádník
14d1c67863
Debugger experiments (#11441)
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# Description
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This PR adds a new evaluator path with callbacks to a mutable trait
object implementing a Debugger trait. The trait object can do anything,
e.g., profiling, code coverage, step debugging. Currently,
entering/leaving a block and a pipeline element is marked with
callbacks, but more callbacks can be added as necessary. Not all
callbacks need to be used by all debuggers; unused ones are simply empty
calls. A simple profiler is implemented as a proof of concept.

The debugging support is implementing by making `eval_xxx()` functions
generic depending on whether we're debugging or not. This has zero
computational overhead, but makes the binary slightly larger (see
benchmarks below). `eval_xxx()` variants called from commands (like
`eval_block_with_early_return()` in `each`) are chosen with a dynamic
dispatch for two reasons: to not grow the binary size due to duplicating
the code of many commands, and for the fact that it isn't possible
because it would make Command trait objects object-unsafe.

In the future, I hope it will be possible to allow plugin callbacks such
that users would be able to implement their profiler plugins instead of
having to recompile Nushell.
[DAP](https://microsoft.github.io/debug-adapter-protocol/) would also be
interesting to explore.

Try `help debug profile`.

## Screenshots

Basic output:

![profiler_new](https://github.com/nushell/nushell/assets/25571562/418b9df0-b659-4dcb-b023-2d5fcef2c865)

To profile with more granularity, increase the profiler depth (you'll
see that repeated `is-windows` calls take a large chunk of total time,
making it a good candidate for optimizing):

![profiler_new_m3](https://github.com/nushell/nushell/assets/25571562/636d756d-5d56-460c-a372-14716f65f37f)

## Benchmarks

### Binary size

Binary size increase vs. main: **+40360 bytes**. _(Both built with
`--release --features=extra,dataframe`.)_

### Time

```nushell
# bench_debug.nu
use std bench

let test = {
    1..100
    | each {
        ls | each {|row| $row.name | str length }
    }
    | flatten
    | math avg
}

print 'debug:'
let res2 = bench { debug profile $test } --pretty
print $res2
```

```nushell
# bench_nodebug.nu
use std bench

let test = {
    1..100
    | each {
        ls | each {|row| $row.name | str length }
    }
    | flatten
    | math avg
}

print 'no debug:'
let res1 = bench { do $test } --pretty
print $res1
```

`cargo run --release -- bench_debug.nu` is consistently 1--2 ms slower
than `cargo run --release -- bench_nodebug.nu` due to the collection
overhead + gathering the report. This is expected. When gathering more
stuff, the overhead is obviously higher.

`cargo run --release -- bench_nodebug.nu` vs. `nu bench_nodebug.nu` I
didn't measure any difference. Both benchmarks report times between 97
and 103 ms randomly, without one being consistently higher than the
other. This suggests that at least in this particular case, when not
running any debugger, there is no runtime overhead.

## API changes

This PR adds a generic parameter to all `eval_xxx` functions that forces
you to specify whether you use the debugger. You can resolve it in two
ways:
* Use a provided helper that will figure it out for you. If you wanted
to use `eval_block(&engine_state, ...)`, call `let eval_block =
get_eval_block(&engine_state); eval_block(&engine_state, ...)`
* If you know you're in an evaluation path that doesn't need debugger
support, call `eval_block::<WithoutDebug>(&engine_state, ...)` (this is
the case of hooks, for example).

I tried to add more explanation in the docstring of `debugger_trait.rs`.

## TODO

- [x] Better profiler output to reduce spam of iterative commands like
`each`
- [x] Resolve `TODO: DEBUG` comments
- [x] Resolve unwraps
- [x] Add doc comments
- [x] Add usage and extra usage for `debug profile`, explaining all
columns

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

Hopefully none.

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

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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 std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

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

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
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2024-03-08 20:21:35 +02:00
Antoine Büsch
979a97c455
Introduce workspace dependencies (#12043)
# Description
This PR introduces [workspaces
dependencies](https://doc.rust-lang.org/cargo/reference/workspaces.html#the-dependencies-table).
The advantages are:
- a single place where dependency versions are declared
- reduces the number of files to change when upgrading a dependency
- reduces the risk of accidentally depending on 2 different versions of
the same dependency

I've only done a few so far. If this PR is accepted, I might continue
and progressively do the rest.

# User-Facing Changes
N/A

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

# After Submitting
N/A
2024-03-07 14:40:31 -08:00
Ian Manske
dfe072fd30
Fix chrono deprecation warnings (#12091)
# Description
Bumps `chrono` to 0.4.35 and fixes any deprecation warnings.
2024-03-07 06:01:30 -06:00
Ian Manske
a18de999c2
Fix broken doc link (#12092)
Fixes a doc comment link in `Value::to_parsable_string`.
2024-03-06 19:50:31 -08:00
Stefan Holderbach
e5f086cfb4
Bump version to 0.91.1 (#12085) 2024-03-06 23:08:14 +01:00
Stefan Holderbach
3016d7a64c
Bump version for 0.91.0 release (#12070) 2024-03-05 21:28:40 +01:00
Yash Thakur
4cda183103
Canonicalize default-config-dir and plugin-path (#11999)
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# Description
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This PR makes sure `$nu.default-config-dir` and `$nu.plugin-path` are
canonicalized.

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

`$nu.default-config-dir` (and `$nu.plugin-path`) will now give canonical
paths, with symlinks and whatnot resolved.

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

> **Note**
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> ```bash
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automatically
> toolkit check pr
> ```
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I've added a couple of tests to check that even if the config folder
and/or any of the config files within are symlinks, the `$nu.*`
variables are properly canonicalized. These tests unfortunately only run
on Linux and MacOS, because I couldn't figure out how to change the
config directory on Windows. Also, given that they involve creating
files, I'm not sure if they're excessive, so I could remove one or two
of them.

# After Submitting
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documentation](https://github.com/nushell/nushell.github.io) after the
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2024-03-02 11:15:31 -06:00
Devyn Cairns
626d597527
Replace panics with errors in thread spawning (#12040)
# Description
Replace panics with errors in thread spawning.

Also adds `IntoSpanned` trait for easily constructing `Spanned`, and an
implementation of `From<Spanned<std::io::Error>>` for `ShellError`,
which is used to provide context for the error wherever there was a span
conveniently available. In general this should make it more convenient
to do the right thing with `std::io::Error` and always add a span to it
when it's possible to do so.

# User-Facing Changes
Fewer panics!

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
2024-03-02 11:14:02 -06:00
Wind
387328fe73
Glob: don't allow implicit casting between glob and string (#11992)
# Description
As title, currently on latest main, nushell confused user if it allows
implicit casting between glob and string:
```nushell
let x = "*.txt"
def glob-test [g: glob] { open $g } 
glob-test $x
```
It always expand the glob although `$x` is defined as a string.
This pr implements a solution from @kubouch :
> We could make it really strict and disallow all autocasting between
globs and strings because that's what's causing the "magic" confusion.
Then, modify all builtins that accept globs to accept oneof(glob,
string) and the rules would be that globs always expand and strings
never expand

# User-Facing Changes
After this pr, user needs to use `into glob` to invoke `glob-test`, if
user pass a string variable:
```nushell
let x = "*.txt"
def glob-test [g: glob] { open $g } 
glob-test ($x | into glob)
```
Or else nushell will return an error.
```
 3 │ glob-test $x
   ·           ─┬
   ·            ╰── can't convert string to glob
```

# Tests + Formatting
Done

# After Submitting
Nan
2024-02-28 23:05:35 +08:00
Yash Thakur
c0ff0f12f0
Add ConfigDirNotFound error (#11849)
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Currently, there's multiple places that look for a config directory, and
each of them has different error messages when it can't be found. This
PR makes a `ConfigDirNotFound` error to standardize the error message
for all of these cases.

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

Previously, the errors in `create_nu_constant()` would say which config
file Nushell was trying to get when it couldn't find the config
directory. Now it doesn't. However, I think that's fine, given that it
doesn't matter whether it couldn't find the config directory while
looking for `login.nu` or `env.nu`, it only matters that it couldn't
find it.

This is what the error looks like:


![image](https://github.com/nushell/nushell/assets/45539777/52298ed4-f9e9-4900-bb94-1154d389efa7)

# Tests + Formatting
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# After Submitting
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---------

Co-authored-by: Antoine Stevan <44101798+amtoine@users.noreply.github.com>
2024-02-26 15:42:20 +08:00
dependabot[bot]
123547444c
Bump strum_macros from 0.25.3 to 0.26.1 (#11979)
Bumps [strum_macros](https://github.com/Peternator7/strum) from 0.25.3
to 0.26.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/Peternator7/strum/releases">strum_macros's
releases</a>.</em></p>
<blockquote>
<h2>v0.26.1</h2>
<h2>0.26.1</h2>
<ul>
<li><a
href="https://redirect.github.com/Peternator7/strum/pull/325">#325</a>:
use <code>core</code> instead of <code>std</code> in VariantArray.</li>
</ul>
<h2>0.26.0</h2>
<h3>Breaking Changes</h3>
<ul>
<li>The <code>EnumVariantNames</code> macro has been renamed
<code>VariantNames</code>. The deprecation warning should steer you in
the right direction for fixing the warning.</li>
<li>The Iterator struct generated by EnumIter now has new bounds on it.
This shouldn't break code unless you manually
added the implementation in your code.</li>
<li><code>Display</code> now supports format strings using named fields
in the enum variant. This should be a no-op for most code.
However, if you were outputting a string like <code>&quot;Hello
{field}&quot;</code>, this will now be interpretted as a format
string.</li>
<li>EnumDiscriminant now inherits the repr and discriminant values from
your main enum. This makes the discriminant type
closer to a mirror of the original and that's always the goal.</li>
</ul>
<h3>New features</h3>
<ul>
<li>
<p>The <code>VariantArray</code> macro has been added. This macro adds
an associated constant <code>VARIANTS</code> to your enum. The constant
is a <code>&amp;'static [Self]</code> slice so that you can access all
the variants of your enum. This only works on enums that only
have unit variants.</p>
<pre lang="rust"><code>use strum::VariantArray;
<p>#[derive(Debug, VariantArray)]
enum Color {
Red,
Blue,
Green,
}</p>
<p>fn main() {
println!(&quot;{:?}&quot;, Color::VARIANTS); // prints:
[&quot;Red&quot;, &quot;Blue&quot;, &quot;Green&quot;]
}
</code></pre></p>
</li>
<li>
<p>The <code>EnumTable</code> macro has been <em>experimentally</em>
added. This macro adds a new type that stores an item for each variant
of the enum. This is useful for storing a value for each variant of an
enum. This is an experimental feature because
I'm not convinced the current api surface area is correct.</p>
<pre lang="rust"><code>use strum::EnumTable;
<p>#[derive(Copy, Clone, Debug, EnumTable)]
enum Color {
Red,
Blue,
</code></pre></p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/Peternator7/strum/blob/master/CHANGELOG.md">strum_macros's
changelog</a>.</em></p>
<blockquote>
<h2>0.26.1</h2>
<ul>
<li><a
href="https://redirect.github.com/Peternator7/strum/pull/325">#325</a>:
use <code>core</code> instead of <code>std</code> in VariantArray.</li>
</ul>
<h2>0.26.0</h2>
<h3>Breaking Changes</h3>
<ul>
<li>The <code>EnumVariantNames</code> macro has been renamed
<code>VariantNames</code>. The deprecation warning should steer you in
the right direction for fixing the warning.</li>
<li>The Iterator struct generated by EnumIter now has new bounds on it.
This shouldn't break code unless you manually
added the implementation in your code.</li>
<li><code>Display</code> now supports format strings using named fields
in the enum variant. This should be a no-op for most code.
However, if you were outputting a string like <code>&quot;Hello
{field}&quot;</code>, this will now be interpretted as a format
string.</li>
<li>EnumDiscriminant now inherits the repr and discriminant values from
your main enum. This makes the discriminant type
closer to a mirror of the original and that's always the goal.</li>
</ul>
<h3>New features</h3>
<ul>
<li>
<p>The <code>VariantArray</code> macro has been added. This macro adds
an associated constant <code>VARIANTS</code> to your enum. The constant
is a <code>&amp;'static [Self]</code> slice so that you can access all
the variants of your enum. This only works on enums that only
have unit variants.</p>
<pre lang="rust"><code>use strum::VariantArray;
<p>#[derive(Debug, VariantArray)]
enum Color {
Red,
Blue,
Green,
}</p>
<p>fn main() {
println!(&quot;{:?}&quot;, Color::VARIANTS); // prints:
[&quot;Red&quot;, &quot;Blue&quot;, &quot;Green&quot;]
}
</code></pre></p>
</li>
<li>
<p>The <code>EnumTable</code> macro has been <em>experimentally</em>
added. This macro adds a new type that stores an item for each variant
of the enum. This is useful for storing a value for each variant of an
enum. This is an experimental feature because
I'm not convinced the current api surface area is correct.</p>
<pre lang="rust"><code>use strum::EnumTable;
<p>#[derive(Copy, Clone, Debug, EnumTable)]
enum Color {
Red,
Blue,
Green,
</code></pre></p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
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<li>See full diff in <a
href="https://github.com/Peternator7/strum/commits/v0.26.1">compare
view</a></li>
</ul>
</details>
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2024-02-26 15:37:38 +08:00
Devyn Cairns
88f1f386bb
Bidirectional communication and streams for plugins (#11911) 2024-02-25 16:32:50 -06:00
Devyn Cairns
461f69ac5d
Rename spans in the serialized form of Value (#11972)
[Discord
context](https://discord.com/channels/601130461678272522/615962413203718156/1211158641793695744)

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# Description
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Span fields were previously renamed to `internal_span` to discourage
their use in Rust code, but this change also affected the serde I/O for
Value. I don't believe the Python plugin was ever updated to reflect
this change.

This effectively changes it back, but just for the serialized form.
There are good reasons for doing this:

1. `internal_span` is a much longer name, and would be one of the most
common strings found in serialized Value data, probably bulking up the
plugin I/O

2. This change was never really meant to have implications for plugins,
and was just meant to be a hint that `.span()` should be used instead in
Rust code.

When Span refactoring is complete, the serialized form of Value will
probably change again in some significant way, so I think for now it's
best that it's left like this.

This has implications for #11911, particularly for documentation and for
the Python plugin as that was already updated in that PR to reflect
`internal_span`. If this is merged first, I will update that PR.

This would probably be considered a breaking change as it would break
plugin I/O compatibility (but not Rust code). I think it can probably go
in any major release though - all things considered, it's pretty minor,
and users are already expected to recompile plugins for new major
versions. However, it may also be worth holding off to do it together
with #11911 as that PR makes breaking changes in general a little bit
friendlier.

# User-Facing Changes
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Requires plugin recompile.

# Tests + Formatting
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Nothing outside of `Value` itself had to be changed to make tests pass.
I did not check the Python plugin and whether it works now, but it was
broken before. It may work again as I think the main incompatibility it
had was expecting to use `span`

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2024-02-25 15:49:10 -06:00
Stefan Holderbach
7884de1941
Remove some unnecessary static Vecs (#11947)
Avoid unnecessary allocations or larger iterator structs

- Turn static `Vec`s into arrays when possible
- Use `std::iter::once`/`empty` where applicable
- Use `bool::then_some` in `detect column` `.chain`
- Drop in the bucket: de-vec-ing tests
2024-02-24 20:58:01 +01:00
Devyn Cairns
098527b263
Print stderr streams to stderr in pipeline_data::print_if_stream() (#11929)
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Related to #11928 - `tee --stderr` doesn't really work as expected
without it

# Description
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Print stderr streams to stderr in `pipeline_data::print_if_stream()`

This corrects unexpected behavior if a stream from an external program
is transformed while still preserving its stderr output. Before this
change, that output is just drained and discarded. Worse, it's drained
to a buffer, which could be really slow and memory hungry if there's a
lot of output on stderr.

This is needed to make `tee --stderr` function in a non-surprising way.
See #11928

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

A script that was erroneously not producing stderr output before might
now, but I can't think of a lot of examples of an external stream being
transformed without being converted.

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2024-02-24 15:32:39 +00:00
Wind
f7d647ac3c
open, rm, umv, cp, rm and du: Don't globs if inputs are variables or string interpolation (#11886)
# Description
This is a follow up to
https://github.com/nushell/nushell/pull/11621#issuecomment-1937484322

Also Fixes: #11838 

## About the code change
It applys the same logic when we pass variables to external commands:


0487e9ffcb/crates/nu-command/src/system/run_external.rs (L162-L170)

That is: if user input dynamic things(like variables, sub-expression, or
string interpolation), it returns a quoted `NuPath`, then user input
won't be globbed
 
# User-Facing Changes
Given two input files: `a*c.txt`, `abc.txt`

* `let f = "a*c.txt"; rm $f` will remove one file: `a*c.txt`. 
~* `let f = "a*c.txt"; rm --glob $f` will remove `a*c.txt` and
`abc.txt`~
* `let f: glob = "a*c.txt"; rm $f` will remove `a*c.txt` and `abc.txt`

## Rules about globbing with *variable*
Given two files: `a*c.txt`, `abc.txt`
| Cmd Type | example | Result |
| ----- | ------------------ | ------ |
| builtin | let f = "a*c.txt"; rm $f | remove `a*c.txt` |
| builtin | let f: glob = "a*c.txt"; rm $f | remove `a*c.txt` and
`abc.txt`
| builtin | let f = "a*c.txt"; rm ($f \| into glob) | remove `a*c.txt`
and `abc.txt`
| custom | def crm [f: glob] { rm $f }; let f = "a*c.txt"; crm $f |
remove `a*c.txt` and `abc.txt`
| custom | def crm [f: glob] { rm ($f \| into string) }; let f =
"a*c.txt"; crm $f | remove `a*c.txt`
| custom | def crm [f: string] { rm $f }; let f = "a*c.txt"; crm $f |
remove `a*c.txt`
| custom | def crm [f: string] { rm $f }; let f = "a*c.txt"; crm ($f \|
into glob) | remove `a*c.txt` and `abc.txt`

In general, if a variable is annotated with `glob` type, nushell will
expand glob pattern. Or else, we need to use `into | glob` to expand
glob pattern

# Tests + Formatting
Done

# After Submitting
I think `str glob-escape` command will be no-longer required. We can
remove it.
2024-02-23 09:17:09 +08:00
Devyn Cairns
28f58057b6
Replace debug_assert! with assert! in Signature::check_names (#11937)
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Debug assertions don't run at release, which means that `cargo test
--release` fails because the tests for name checks don't run properly.
These checks are not really expensive, and there shouldn't be any
noticeable difference to startup time, so there isn't much reason not to
just leave them in.

It's valuable to be able to run `cargo test --release`, as that can
expose race conditions and dependencies on undefined behavior that
aren't exposed in debug builds.

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

This shouldn't affect anything. Any violations of this rule were being
caught with debug tests, which are run by the CI.

# Tests + Formatting
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2024-02-22 16:17:06 -06:00
Jack Wright
f17f857b1f
wrapping run_repl with catch_unwind and restarting the repl on panic (#11860)
Provides the ability to cleanly recover from panics, falling back to the
last known good state of EngineState and Stack. This pull request also
utilizes miette's panic handler for better formatting of panics.

<img width="642" alt="Screenshot 2024-02-21 at 08 34 35"
src="https://github.com/nushell/nushell/assets/56345/f81efaba-aa45-4e47-991c-1a2cf99e06ff">

---------

Co-authored-by: Jack Wright <jack.wright@disqo.com>
2024-02-22 12:14:10 -06:00
Yash Thakur
6ff3a4180b
Specify which file not found in error (#11868)
# Description
Currently, `ShellError::FileNotFound` shows the span where the error
occurred but doesn't say which file wasn't found. This PR makes it so
the help includes that (like the `DirectoryNotFound` error).

# User-Facing Changes
No breaking changes, it's just that when a file can't be found, the help
will say which file couldn't be found:


![image](https://github.com/nushell/nushell/assets/45539777/e52f1e65-55c1-4cd2-8108-a4ccc334a66f)
2024-02-21 21:27:13 +08:00
Stefan Holderbach
6e590fe0a2
Remove unused Index(Mut) impls on AST types (#11903)
# Description
Both `Block` and `Pipeline` had `Index`/`IndexMut` implementations to
access their elements, that are currently unused.
Explicit helpers or iteration would generally be preferred anyways but
in the current state the inner containers are `pub` and are liberally
used. (Sometimes with potentially panicking indexing or also iteration)

As it is potentially unclear what the meaning of the element from a
block or pipeline queried by a usize is, let's remove it entirely until
we come up with a better API.

# User-Facing Changes
None

Plugin authors shouldn't dig into AST internals
2024-02-21 18:02:30 +08:00
David Matos
123bf2d736
fix format date based on users locale (#11908)
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# Description
Hi, 

Fixes #10838, where before the `date` would be formatted incorrectly,
and was not picking `LC_TIME` for time formatting, but it picked the
first locale returned by the `sys-locale` crate instead. Now it will
format time based on `LC_TIME`. For example,

```
// my locale `nl_NL.UTF-8`
❯ date now | format date '%x %X'
20-02-24 17:17:12

$env.LC_TIME = "en_US.UTF-8"

❯ date now | format date '%x %X'
02/20/2024 05:16:28 PM
```
Note that I also changed the `default_env.nu` as otherwise the Time will
show AM/PM twice. Also reason for the `chrono` update is because this
relies on a fix to upstream repo, which i initially submitted an
[issue](https://github.com/chronotope/chrono/issues/1349#event-11765363286)

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# User-Facing Changes
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# Tests + Formatting

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

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

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mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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2024-02-20 11:08:49 -06:00
dependabot[bot]
a4ef7c1ac4
Bump fancy-regex from 0.12.0 to 0.13.0 (#11893)
[//]: # (dependabot-start)
⚠️  **Dependabot is rebasing this PR** ⚠️ 

Rebasing might not happen immediately, so don't worry if this takes some
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Note: if you make any changes to this PR yourself, they will take
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---

[//]: # (dependabot-end)

Bumps [fancy-regex](https://github.com/fancy-regex/fancy-regex) from
0.12.0 to 0.13.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/fancy-regex/fancy-regex/releases">fancy-regex's
releases</a>.</em></p>
<blockquote>
<h2>0.13.0</h2>
<h3>Added</h3>
<ul>
<li>Support for relative backreferences using <code>\k&lt;-1&gt;</code>
(-1 references the
previous group) (<a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/121">#121</a>)</li>
<li>Add <code>try_replacen</code> to <code>Regex</code> which returns a
<code>Result</code> instead of panicking
when matching errors (<a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/130">#130</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>Switch from regex crate to regex-automata and regex-syntax (lower
level APIs)
to simplify internals (<a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/121">#121</a>)</li>
<li>Allow escaping some letters in character classes, e.g.
<code>[\A]</code> used to error
but now matches the same as <code>[A]</code> (for compatibility with
Oniguruma)</li>
<li>MSRV (minimum supported Rust version) is now 1.66.1 (from
1.61.0)</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Fix index out of bounds panic when parsing unclosed <code>(?(</code>
(<a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/125">#125</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/fancy-regex/fancy-regex/blob/main/CHANGELOG.md">fancy-regex's
changelog</a>.</em></p>
<blockquote>
<h2>[0.13.0] - 2023-12-22</h2>
<h3>Added</h3>
<ul>
<li>Support for relative backreferences using <code>\k&lt;-1&gt;</code>
(-1 references the
previous group) (<a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/121">#121</a>)</li>
<li>Add <code>try_replacen</code> to <code>Regex</code> which returns a
<code>Result</code> instead of panicking
when matching errors (<a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/130">#130</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>Switch from regex crate to regex-automata and regex-syntax (lower
level APIs)
to simplify internals (<a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/121">#121</a>)</li>
<li>Allow escaping some letters in character classes, e.g.
<code>[\A]</code> used to error
but now matches the same as <code>[A]</code> (for compatibility with
Oniguruma)</li>
<li>MSRV (minimum supported Rust version) is now 1.66.1 (from
1.61.0)</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Fix index out of bounds panic when parsing unclosed <code>(?(</code>
(<a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/125">#125</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="bf2c807447"><code>bf2c807</code></a>
Version 0.13.0</li>
<li><a
href="7b4ad1178d"><code>7b4ad11</code></a>
Merge pull request <a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/129">#129</a>
from fancy-regex/changelog-0.13</li>
<li><a
href="8d8ea4fcf9"><code>8d8ea4f</code></a>
Document how to check matching in Oniguruma</li>
<li><a
href="1fab2c7e0b"><code>1fab2c7</code></a>
Add character class escaping change</li>
<li><a
href="2d6339584d"><code>2d63395</code></a>
Add try_replacen</li>
<li><a
href="6deb4fc1b2"><code>6deb4fc</code></a>
Prepare CHANGELOG for next release</li>
<li><a
href="c0e701f821"><code>c0e701f</code></a>
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href="https://redirect.github.com/fancy-regex/fancy-regex/issues/130">#130</a>
from kevinhu/try_replacen</li>
<li><a
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Add try_replacen</li>
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Merge pull request <a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/126">#126</a>
from robertknight/patch-1</li>
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dependabot[bot]
6a1691f378
Bump miette from 7.0.0 to 7.1.0 (#11892)
Bumps [miette](https://github.com/zkat/miette) from 7.0.0 to 7.1.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/zkat/miette/releases">miette's
releases</a>.</em></p>
<blockquote>
<h2>v7.1.0</h2>
<h3>Features</h3>
<ul>
<li><strong>derive:</strong> enable more boxed types to be
#[diagnostic_source] (<a
href="https://redirect.github.com/zkat/miette/issues/338">#338</a>) (<a
href="c2f06f6cca">c2f06f6c</a>)</li>
<li><strong>source:</strong> derive common traits for NamedSource,
SourceSpan, and SourceOffset (<a
href="https://redirect.github.com/zkat/miette/issues/340">#340</a>) (<a
href="6f09250cca">6f09250c</a>)</li>
<li><strong>collection:</strong> add support for collection of labels
(<a href="https://redirect.github.com/zkat/miette/issues/341">#341</a>)
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<h3>Bug Fixes</h3>
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<li><strong>tests:</strong> revert test-breaking changes of e5c7ae4 (<a
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<blockquote>
<h2>7.1.0 (2024-02-16)</h2>
<h3>Features</h3>
<ul>
<li><strong>derive:</strong> enable more boxed types to be
#[diagnostic_source] (<a
href="https://redirect.github.com/zkat/miette/issues/338">#338</a>) (<a
href="c2f06f6cca">c2f06f6c</a>)</li>
<li><strong>source:</strong> derive common traits for NamedSource,
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(<a
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<li><strong>tests:</strong> revert test-breaking changes of e5c7ae4 (<a
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chore: Release</li>
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feat(source): derive common traits for NamedSource, SourceSpan, and
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2024-02-19 09:54:08 +08:00
Ian Manske
68fcd71898
Add Value::coerce_str (#11885)
# Description
Following #11851, this PR adds one final conversion function for
`Value`. `Value::coerce_str` takes a `&Value` and converts it to a
`Cow<str>`, creating an owned `String` for types that needed converting.
Otherwise, it returns a borrowed `str` for `String` and `Binary`
`Value`s which avoids a clone/allocation. Where possible, `coerce_str`
and `coerce_into_string` should be used instead of `coerce_string`,
since `coerce_string` always allocates a new `String`.
2024-02-18 17:47:10 +01:00
Ian Manske
fb4251aba7
Remove Record::from_raw_cols_vals_unchecked (#11810)
# Description
Follows from #11718 and replaces all usages of
`Record::from_raw_cols_vals_unchecked` with iterator or `record!`
equivalents.
2024-02-18 14:20:22 +02:00
Stefan Holderbach
28f0f32ae7
Prune unused ShellError variants (#11883)
# Description
Same procedure as #11881

Remove unused variants to avoid confusion and foster better practices
around error variants.

- Remove `SE::PermissionDeniedError`
- Remove `SE::OutOfMemoryError`
- Remove `SE::DirectoryNotFoundCustom`
- Remove `SE::MoveNotPossibleSingle`
- Remove `SE::NonUnicodeInput`

# User-Facing Changes
Plugin authors may have matched against or emitted those variants
2024-02-18 15:31:36 +08:00
Stefan Holderbach
06c590d894
Prune unused ParseError variants (#11881)
# Description
Error variants never raised should be removed to avoid confusion and
make sure we choose the proper variants in the future

- Remove unused `ParseError::InvalidModuleFileName`
- Remove unused `ParseError::NotFound`
- Remove unused `ParseError::MissingImportPattern`
- Remove unused `ParseError::ReadingFile`


# User-Facing Changes
None for users.
Insignificant for plugin authors as they interact only with `ShellError`
2024-02-18 15:31:02 +08:00
Ian Manske
1c49ca503a
Name the Value conversion functions more clearly (#11851)
# Description
This PR renames the conversion functions on `Value` to be more consistent.
It follows the Rust [API guidelines](https://rust-lang.github.io/api-guidelines/naming.html#ad-hoc-conversions-follow-as_-to_-into_-conventions-c-conv) for ad-hoc conversions.
The conversion functions on `Value` now come in a few forms:
- `coerce_{type}` takes a `&Value` and attempts to convert the value to
`type` (e.g., `i64` are converted to `f64`). This is the old behavior of
some of the `as_{type}` functions -- these functions have simply been
renamed to better reflect what they do.
- The new `as_{type}` functions take a `&Value` and returns an `Ok`
result only if the value is of `type` (no conversion is attempted). The
returned value will be borrowed if `type` is non-`Copy`, otherwise an
owned value is returned.
- `into_{type}` exists for non-`Copy` types, but otherwise does not
attempt conversion just like `as_type`. It takes an owned `Value` and
always returns an owned result.
- `coerce_into_{type}` has the same relationship with `coerce_{type}` as
`into_{type}` does with `as_{type}`.
- `to_{kind}_string`: conversion to different string formats (debug,
abbreviated, etc.). Only two of the old string conversion functions were
removed, the rest have been renamed only.
- `to_{type}`: other conversion functions. Currently, only `to_path`
exists. (And `to_string` through `Display`.)

This table summaries the above:
| Form | Cost | Input Ownership | Output Ownership | Converts `Value`
case/`type` |
| ---------------------------- | ----- | --------------- |
---------------- | -------- |
| `as_{type}` | Cheap | Borrowed | Borrowed/Owned | No |
| `into_{type}` | Cheap | Owned | Owned | No |
| `coerce_{type}` | Cheap | Borrowed | Borrowed/Owned | Yes |
| `coerce_into_{type}` | Cheap | Owned | Owned | Yes |
| `to_{kind}_string` | Expensive | Borrowed | Owned | Yes |
| `to_{type}` | Expensive | Borrowed | Owned | Yes |

# User-Facing Changes
Breaking API change for `Value` in `nu-protocol` which is exposed as
part of the plugin API.
2024-02-17 18:14:16 +00:00
Yash Thakur
cb67de675e
Disallow spreading lists automatically when calling externals (#11857)
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Spreading lists automatically when calling externals was deprecated in
0.89 (#11289), and this PR is to remove it in 0.91.

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

The new error message looks like this:

```
>  ^echo [1 2]
Error: nu:🐚:cannot_pass_list_to_external

  × Lists are not automatically spread when calling external commands
   ╭─[entry #13:1:8]
 1 │  ^echo [1 2]
   ·        ──┬──
   ·          ╰── Spread operator (...) is necessary to spread lists
   ╰────
  help: Either convert the list to a string or use the spread operator, like so: ...[1 2]
```

The old error message didn't say exactly where to put the `...` and
seemed to confuse a lot of people, so hopefully this helps.

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There was one test to check that implicit spread was deprecated before,
updated that to check that it's disallowed now.

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2024-02-14 18:16:19 -05:00