Commit Graph

1518 Commits

Author SHA1 Message Date
Ian Manske
bae6d694ca
Refactor using ClosureEval types (#12541)
# Description
Adds two new types in `nu-engine` for evaluating closures: `ClosureEval`
and `ClosureEvalOnce`. This removed some duplicate code and centralizes
our logic for setting up, running, and cleaning up closures. For
example, in the future if we are able to reduce the cloning necessary to
run a closure, then we only have to change the code related to these
types.

`ClosureEval` and `ClosureEvalOnce` are designed with a builder API.
`ClosureEval` is used to run a closure multiple times whereas
`ClosureEvalOnce` is used for a one-shot closure.

# User-Facing Changes
Should be none, unless I messed up one of the command migrations.
Actually, this will fix any unreported environment bugs for commands
that didn't reset the env after running a closure.
2024-04-22 14:15:09 +08:00
Devyn Cairns
2595f31541
Overhaul the plugin cache file with a new msgpack+brotli format (#12579)
# Description

- Plugin signatures are now saved to `plugin.msgpackz`, which is
brotli-compressed MessagePack.
- The file is updated incrementally, rather than writing all plugin
commands in the engine every time.
- The file always contains the result of the `Signature` call to the
plugin, even if commands were removed.
- Invalid data for a particular plugin just causes an error to be
reported, but the rest of the plugins can still be parsed

# User-Facing Changes

- The plugin file has a different filename, and it's not a nushell
script.
- The default `plugin.nu` file will be automatically migrated the first
time, but not other plugin config files.
- We don't currently provide any utilities that could help edit this
file, beyond `plugin add` and `plugin rm`
  - `from msgpackz`, `to msgpackz` could also help
- New commands: `plugin add`, `plugin rm`

# Tests + Formatting

Tests added for the format and for the invalid handling.

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

# After Submitting

- [ ] Check for documentation changes
- [ ] Definitely needs release notes
2024-04-21 07:36:26 -05:00
Ian Manske
3b1d405b96
Remove the Value::Block case (#12582)
# Description
`Value` describes the types of first-class values that users and scripts
can create, manipulate, pass around, and store. However, `Block`s are
not first-class values in the language, so this PR removes it from
`Value`. This removes some unnecessary code, and this change should be
invisible to the user except for the change to `scope modules` described
below.

# User-Facing Changes
Breaking change: the output of `scope modules` was changed so that
`env_block` is now `has_env_block` which is a boolean value instead of a
`Block`.

# After Submitting
Update the language guide possibly.
2024-04-21 07:03:33 +02:00
YizhePKU
6d2cb4382a
Fix circular source causing Nushell to crash (#12262)
# Description

EngineState now tracks the script currently running, instead of the
parent directory of the script. This also provides an easy way to expose
the current running script to the user (Issue #12195).

Similarly, StateWorkingSet now tracks scripts instead of directories.
`parsed_module_files` and `currently_parsed_pwd` are merged into one
variable, `scripts`, which acts like a stack for tracking the current
running script (which is on the top of the stack).

Circular import check is added for `source` operations, in addition to
module import. A simple testcase is added for circular source.

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# User-Facing Changes
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It shouldn't have any user facing changes.
2024-04-19 09:38:08 +03:00
Brooks Rady
351bff8233
fix(shell_integration): set window title on startup (#12569)
Should close #10833 — though I'd imagine that should have already been
closed.

# Description

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

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

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

After this PR:

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

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

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

# User-Facing Changes

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

# Tests + Formatting

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

# After Submitting

Let me know if you think this needs any user-facing docs changes!
2024-04-18 20:30:37 -05:00
Ian Manske
6ccd547d81
Add ListItem type for Expr::List (#12529)
# Description
This PR adds a `ListItem` enum to our set of AST types. It encodes the
two possible expressions inside of list expression: a singular item or a
spread. This is similar to the existing `RecordItem` enum. Adding
`ListItem` allows us to remove the existing `Expr::Spread` case which
was previously used for list spreads. As a consequence, this guarantees
(via the type system) that spreads can only ever occur inside lists,
records, or as command args.

This PR also does a little bit of cleanup in relevant parser code.
2024-04-18 13:21:05 +02:00
Devyn Cairns
2ae9ad8676
Copy-on-write for record values (#12305)
# Description
This adds a `SharedCow` type as a transparent copy-on-write pointer that
clones to unique on mutate.

As an initial test, the `Record` within `Value::Record` is shared.

There are some pretty big wins for performance. I'll post benchmark
results in a comment. The biggest winner is nested access, as that would
have cloned the records for each cell path follow before and it doesn't
have to anymore.

The reusability of the `SharedCow` type is nice and I think it could be
used to clean up the previous work I did with `Arc` in `EngineState`.
It's meant to be a mostly transparent clone-on-write that just clones on
`.to_mut()` or `.into_owned()` if there are actually multiple
references, but avoids cloning if the reference is unique.

# User-Facing Changes
- `Value::Record` field is a different type (plugin authors)

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

# After Submitting
- [ ] use for `EngineState`
- [ ] use for `Value::List`
2024-04-14 01:42:03 +00:00
Darren Schroeder
de41345bf2
better logging for shell_integration ansi escapes + better plugin perf logging (#12494)
# Description

This PR just adds better logging for shell_integration and tweaks the
ansi escapes so they're closer to where the action happens. I also added
some perf log entries to help better understand plugin file load and
eval performance.

# User-Facing Changes
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# Tests + Formatting
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- `cargo test --workspace` to check that all tests pass (on Windows make
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crates/nu-std"` to run the tests for the standard library

> **Note**
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2024-04-12 10:11:41 -05:00
Stefan Holderbach
872945ae8e
Bump version to 0.92.3 (#12476) 2024-04-12 08:00:43 -05:00
Ian Manske
d7ba8872bf
Rename IoStream to OutDest (#12433)
# Description
I spent a while trying to come up with a good name for what is currently
`IoStream`. Looking back, this name is not the best, because it:
1. Implies that it is a stream, when it all it really does is specify
the output destination for a stream/pipeline.
2. Implies that it handles input and output, when it really only handles
output.

So, this PR renames `IoStream` to `OutDest` instead, which should be
more clear.
2024-04-09 16:48:32 +00:00
Texas Toland
6536fa5ff7
Ensure currently_parsed_cwd is set for config files (#12338)
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# Description
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Fixes #7849, #11465 based on @kubouch's suggestion in
https://github.com/nushell/nushell/issues/11465#issuecomment-1883847806.

# User-Facing Changes
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helps us keep track of breaking changes. -->

Can source files relative to `env.nu` or `config.nu` like in #6150.

# Tests + Formatting
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Adds test that previously failed.

# After Submitting
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2024-04-09 10:06:41 -04:00
Devyn Cairns
14b0ff3f05
Add --no-newline option to nu (#12410)
# Description
I have `nu` set as my shell in my editor, which allows me to easily pipe
selections of text to things like `str pascal-case` or even more complex
string operation pipelines, which I find super handy. However, the only
annoying thing is that I pretty much always have to add `| print -n` at
the end, because `nu` adds a newline when it prints the resulting value.

This adds a `--no-newline` option to stop that from happening, and then
you don't need to pipe to `print -n` anymore, you can just have your
shell command for your editor contain that flag.

# User-Facing Changes
- Add `--no-newline` command line option

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
2024-04-09 10:04:00 -04:00
Darren Schroeder
40f72e80c3
try to be a bit more precise with repl logging (#12449)
# Description

This PR tries to be a bit more precise with the repl logging when
starting nushell with `nu --log-level debug`. It adds a few more `perf`
lines and changes some of the text of others.

# User-Facing Changes
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helps us keep track of breaking changes. -->

# Tests + Formatting
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sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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2024-04-08 05:36:54 -05:00
pwygab
12b897b149
Make auto-cd check for permissions (#12342)
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# Description
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I was playing around with auto-cd and realised it didn't check for
permissions before cd'ing. This PR fixes that.

```
~/CodingProjects/nushell> /root                                                                           
Error: nu:🐚:io_error

  × I/O error
  help: Cannot change directory to /root: You are neither the owner, in the group, nor the super user and do not have permission
```

This PR also refactors some of the filesystem utilities to nu-utils,
specifically the permissions checking and users.

# User-Facing Changes
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helps us keep track of breaking changes. -->

# Tests + Formatting
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2024-04-06 08:56:46 -05:00
Stefan Holderbach
394487b3a7
Bump version to 0.92.2 (#12402) 2024-04-05 10:24:00 -04:00
Stefan Holderbach
c00a05a762
Bump version to 0.92.1 (#12380) 2024-04-04 16:18:54 +02:00
Deep Panchal
25b90744b7
fix simple typo in commandline_.rs (#12387)
Fix typo in crates/nu-cli/src/commands/commandline/commandline_.rs
`Replaceing` -> `Replacing`
2024-04-04 09:59:52 +02:00
Ian Manske
cd00a489af
Fix hooks on 0.92.0 (#12383)
# Description
Fixes #12382, where overlay changes from hooks were not preserved into
the global state. This was due to creating child stacks for hooks, when
the global stack should have been used instead.
2024-04-04 09:25:54 +02:00
Stefan Holderbach
c3428b891a
Bump version for 0.92.0 release (#12349)
- [x] `cargo hack` feature flag compatibility run
- [x] reedline released and pinned
- [x] `nu-plugin-test-support` added to release script
- [x] dependency tree checked
- [x] release notes
2024-04-02 20:50:26 +03:00
pwygab
9444020f26
Make autocd return exit code 0 (#12337)
# Description
resolves #11159.

```
~/CodingProjects/nushell> ^false                               
~/CodingProjects/nushell> $env.LAST_EXIT_CODE                         
1
~/CodingProjects/nushell> ^false                                  
~/CodingProjects/nushell> ./crates/          
~/CodingProjects/nushell/crates> $env.LAST_EXIT_CODE
0                                              
```

# User-Facing Changes

autocd now sets exit code to 0.
2024-03-30 15:09:34 +01:00
Stefan Holderbach
cc39069e13
Reuse existing small allocations if possible (#12335)
Those allocations are all small and insignificant in the grand scheme of
things and the optimizer may be able to resolve some of those but better
to be nice anyways.

Primarily inspired by the new
[`clippy::assigning_clones`](https://rust-lang.github.io/rust-clippy/master/index.html#/assigning_clones)

- **Avoid reallocs with `clone_from` in `nu-parser`**
- **Avoid realloc on assignment in `Stack`**
- **Fix `clippy::assigning_clones` in `nu-cli`**
- **Reuse allocations in `nu-explore` if possible**
2024-03-30 14:04:11 +01:00
Stefan Holderbach
e889679d42
Use nightly clippy to kill dead code/fix style (#12334)
- **Remove duplicated imports**
- **Remove unused field in `CompletionOptions`**
- **Remove unused struct in `nu-table`**
- **Clarify generic bounds**
- **Simplify a subtrait bound for `ExactSizeIterator`**
- **Use `unwrap_or_default`**
- **Use `Option` directly instead of empty string**
- **Elide unneeded clone in `to html`**
2024-03-30 09:17:28 +08:00
Darren Schroeder
e97368433b
add a few more logging statements for debugging startup (#12316)
# Description

This PR adds a few more `trace!()` and `perf()` statements that allowed
a deeper understanding of the nushell startup process when used with `nu
-n --no-std-lib --log-level trace`.

# 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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sure to [enable developer
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2024-03-28 11:27:12 -05:00
Ian Manske
c747ec75c9
Add command_prelude module (#12291)
# Description
When implementing a `Command`, one must also import all the types
present in the function signatures for `Command`. This makes it so that
we often import the same set of types in each command implementation
file. E.g., something like this:
```rust
use nu_protocol::ast::Call;
use nu_protocol::engine::{Command, EngineState, Stack};
use nu_protocol::{
    record, Category, Example, IntoInterruptiblePipelineData, IntoPipelineData, PipelineData,
    ShellError, Signature, Span, Type, Value,
};
```

This PR adds the `nu_engine::command_prelude` module which contains the
necessary and commonly used types to implement a `Command`:
```rust
// command_prelude.rs
pub use crate::CallExt;
pub use nu_protocol::{
    ast::{Call, CellPath},
    engine::{Command, EngineState, Stack},
    record, Category, Example, IntoInterruptiblePipelineData, IntoPipelineData, IntoSpanned,
    PipelineData, Record, ShellError, Signature, Span, Spanned, SyntaxShape, Type, Value,
};
```

This should reduce the boilerplate needed to implement a command and
also gives us a place to track the breadth of the `Command` API. I tried
to be conservative with what went into the prelude modules, since it
might be hard/annoying to remove items from the prelude in the future.
Let me know if something should be included or excluded.
2024-03-26 21:17:30 +00:00
Filip Andersson
b70766e6f5
Boxes record for smaller Value enum. (#12252)
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# Description
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Boxes `Record` inside `Value` to reduce memory usage, `Value` goes from
`72` -> `56` bytes after this change.
# 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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check that you're using the standard code style
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sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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crates/nu-std"` to run the tests for the standard library

> **Note**
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automatically
> toolkit check pr
> ```
-->

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2024-03-26 17:17:44 +02:00
Wind
87c5f6e455
ls, rm, cp, open, touch, mkdir: Don't expand tilde if input path is quoted string or a variable. (#12232)
# Description
Fixes:  #11887
Fixes: #11626

This pr unify the tilde expand behavior over several filesystem relative
commands. It follows the same rule with glob expansion:
|  command  |  result |
| ----------- |  ------ |
| ls ~/aaa  | expand tilde
| ls "~/aaa"  | don't expand tilde
| let f = "~/aaa"; ls $f | don't expand tilde, if you want to: use `ls
($f \| path expand)`
| let f: glob = "~/aaa"; ls $f | expand tilde, they don't expand on
`mkdir`, `touch` comamnd.

Actually I'm not sure for 4th item, currently it's expanding is just
because it followes the same rule with glob expansion.

### About the change
It changes `expand_path_with` to accept a new argument called
`expand_tilde`, if it's true, expand it, if not, just keep it as `~`
itself.

# User-Facing Changes
After this change, `ls "~/aaa"` won't expand tilde.

# Tests + Formatting
Done
2024-03-25 10:08:38 +08:00
Marc Schreiber
e7bdd08a04
Send LSP Completion Item Kind (#11443)
# Description

This commit fills in the completion item kind into the
`textDocument/completion` response so that LSP client can present more
information to the user.

It is an improvement in the context of #10794

# User-Facing Changes

Improved information display in editor's intelli-sense menu


![output](https://github.com/nushell/nushell/assets/16558417/991dc0a9-45d1-4718-8f22-29002d687b93)
2024-03-24 20:14:12 -05:00
Antoine Büsch
4ddc35cdad
Move more dependencies to workspace level (#12270)
# Description
This is a followup to #12043 that moves more dependency versions to
workspace dependencies.

# User-Facing Changes
N/A

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
2024-03-23 18:46:02 -05:00
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
Stefan Holderbach
f56070cbcd
Respond to nightly clippy (#12174)
Babe, wake up new nightly clippy just dropped

- Move `catch_unwind` block out of `match` scrutinee
- Remove unused members in `PluginExecutionContext`
2024-03-20 09:46:39 +08:00
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
Tastaturtaste
c7e0d4b1e5
Use the system clipboard only for explicit copy/paste operations. Addresses issue 11907 (#12179)
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# Description
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With the introduction of the system clipboard to nushell, many commands
changed their behavior from using a local cut buffer to the system
clipboard, perhaps surprisingly for many users. (See #11907)
This PR changes most of them back to using the local cut buffer and
introduces three commands (`CutSelectionSystem`, `CopySelectionSystem`
and `PasteSystem`) to explicitly use the system clipboard.


# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Users who in the meantime already used the system clipboard now default
back to the local clipboard. To be able to use the system clipboard
again they have to append the suffix `system` to their current edit
command specified in their keybindings.

# Tests + Formatting
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The commands themselves are tested in `reedline`. The changes introduces
in nushell are minimal and simply forward from a match on the keybinding
name to the command.
# After Submitting
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---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2024-03-15 08:59:21 -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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automatically
> toolkit check pr
> ```
-->

# After Submitting
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2024-03-13 06:26:06 -05:00
Yash Thakur
a7b281292d
Canonicalize config dir (#12136)
It turns out that my previous PR,
https://github.com/nushell/nushell/pull/11999, didn't properly
canonicalize `$nu.default-config-dir` in a scenario where
`XDG_CONFIG_HOME` (or the equivalent on each platform) was a symlink. To
remedy that, this PR makes `nu_path::config_dir()` return a
canonicalized path. This probably shouldn't break anything (except maybe
tests relying on the old behavior), since the canonical path will be
equivalent to non-canonical paths.

# User-Facing Changes

A user may get a path with symlinks resolved and `..`s replaced where
they previously didn't. I'm not sure where this would happen, though,
and anyway, the canonical path is probably the "correct" thing to
present to the user. We're using `omnipath` to make the path presentable
to the user on Windows, so there's no danger of someone getting an path
with `\\?` there.

# Tests + Formatting

The tests for config files have been updated to run the binary using the
`Director` so that it has access to the `XDG_CONFIG_HOME`/`HOME`
environment variables to be able to change the config directory.
2024-03-10 11:07:31 +01:00
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:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
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> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
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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
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
Stefan Holderbach
9a07b41c9d
Pin reedline to 0.30.0 release (#12081)
https://github.com/nushell/reedline/releases/tag/v0.30.0
2024-03-05 21:13:57 +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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- `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
> ```
-->

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
PR is merged, if necessary. This will help us keep the docs up to date.
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2024-03-02 11:15:31 -06:00
132ikl
f4d9ddd3ad
Fix completions for directories with hidden files (#11921)
# Description
Attempting to complete a directory with hidden files could cause a
variety of issues. When Rust parses the partial path to be completed
into components, it removes the trailing `.` since it interprets this to
mean "the current directory", but in the case of the completer we
actually want to treat the trailling `.` as a literal `.`. This PR fixes
this by adding a `.` back into the Path components if the last character
of the path is a `.` AND the path is longer than 1 character (eg., not
just a ".", since that correctly gets interpreted as Component::CurDir).

Here are some things this fixes:
- Panic when tab completing for hidden files in a directory with hidden
files (ex. `ls test/.`)
- Panic when tab completing a directory with only hidden files (since
the common prefix ends with a `.`, causing the previous issue)
- Mishandling of tab completing hidden files in directory (ex. `ls
~/.<TAB>` lists all files instead of just hidden files)
- Trailing `.` being inexplicably removed when tab completing a
directory without hidden files

While testing for this PR I also noticed there is a similar issue when
completing with `..` (ex. `ls ~/test/..<TAB>`) which is not fixed by
this PR (edit: see #11922).

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

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

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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
> ```
-->
Added a hidden-files-within-directories test to the `file_completions`
test.

# After Submitting
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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.
-->
2024-02-26 12:14:19 -06:00
Yash Thakur
c0ff0f12f0
Add ConfigDirNotFound error (#11849)
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# Description
<!--
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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
<!--
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` to
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

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-->

# After Submitting
<!-- If your PR had any user-facing changes, update [the
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---------

Co-authored-by: Antoine Stevan <44101798+amtoine@users.noreply.github.com>
2024-02-26 15:42:20 +08:00
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
Jack Wright
995989dad4
Handling errors instead of killing the REPL (#11953)
Handle all errors that happen within the REPL loop, display warning or
error messages, and return defaults where necessary.

This addresses @IanManske [Comment Item
1](https://github.com/nushell/nushell/pull/11860#issuecomment-1959947240)
in #11860

---------

Co-authored-by: Jack Wright <jack.wright@disqo.com>
2024-02-24 15:26:06 +00:00
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
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>
Merge pull request <a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/130">#130</a>
from kevinhu/try_replacen</li>
<li><a
href="55f6549bec"><code>55f6549</code></a>
Add try_replacen</li>
<li><a
href="8ab3a44053"><code>8ab3a44</code></a>
Merge branch 'fancy-regex:main' into main</li>
<li><a
href="494cd931c3"><code>494cd93</code></a>
Merge pull request <a
href="https://redirect.github.com/fancy-regex/fancy-regex/issues/126">#126</a>
from robertknight/patch-1</li>
<li>Additional commits viewable in <a
href="https://github.com/fancy-regex/fancy-regex/compare/0.12.0...0.13.0">compare
view</a></li>
</ul>
</details>
<br />


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