# Description
The second `Value` is redundant and will consume five extra bytes on
each transmission of a custom value to/from a plugin.
# User-Facing Changes
This is a breaking change to the plugin protocol.
The [example in the protocol
reference](https://www.nushell.sh/contributor-book/plugin_protocol_reference.html#value)
becomes
```json
{
"Custom": {
"val": {
"type": "PluginCustomValue",
"name": "database",
"data": [36, 190, 127, 40, 12, 3, 46, 83],
"notify_on_drop": true
},
"span": {
"start": 320,
"end": 340
}
}
}
```
instead of
```json
{
"CustomValue": {
...
}
}
```
# After Submitting
Update plugin protocol reference
# Description
Now we only use `nix 0.28.0`
Achieved by
- updating `ctrlc` to `3.4.4`
- updating `wl-clipboard-rs` to `0.8.1`
- update our own dependency on `nix` from `0.27` to `0.28`
- required fixing uses of `nix::unistd::{tcgetpgrp,tcsetpgrp}`
- now requires an I/O safe file descriptor
- fake one pointing to `libc::STDIN_FILENO` (we were only accessing
`0` previously, dito for fish)
# User-Facing Changes
Better compile times and less to download as source dependencies
# Description
This is something that was discussed in the core team meeting last
Wednesday. @ayax79 is building `nu-plugin-polars` with all of the
dataframe commands into a plugin, and there are a lot of them, so it
would help to make the API more similar. At the same time, I think the
`Command` API is just better anyway. I don't think the difference is
justified, and the types for core commands have the benefit of requiring
less `.into()` because they often don't own their data
- Broke `signature()` up into `name()`, `usage()`, `extra_usage()`,
`search_terms()`, `examples()`
- `signature()` returns `nu_protocol::Signature`
- `examples()` returns `Vec<nu_protocol::Example>`
- `PluginSignature` and `PluginExample` no longer need to be used by
plugin developers
# User-Facing Changes
Breaking API for plugins yet again 😄
Bumps [ical](https://github.com/Peltoche/ical-rs) from 0.10.0 to 0.11.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/Peltoche/ical-rs/releases">ical's
releases</a>.</em></p>
<blockquote>
<h2>v0.11.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update the version inside the readme by <a
href="https://github.com/Peltoche"><code>@Peltoche</code></a> in <a
href="https://redirect.github.com/Peltoche/ical-rs/pull/58">Peltoche/ical-rs#58</a></li>
<li>Fix <a
href="https://redirect.github.com/Peltoche/ical-rs/issues/62">#62</a> by
<a href="https://github.com/ddnomad"><code>@ddnomad</code></a> in <a
href="https://redirect.github.com/Peltoche/ical-rs/pull/63">Peltoche/ical-rs#63</a></li>
<li>replaced split_line with a multibyte aware version by <a
href="https://github.com/ronnybremer"><code>@ronnybremer</code></a> in
<a
href="https://redirect.github.com/Peltoche/ical-rs/pull/61">Peltoche/ical-rs#61</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/ddnomad"><code>@ddnomad</code></a> made
their first contribution in <a
href="https://redirect.github.com/Peltoche/ical-rs/pull/63">Peltoche/ical-rs#63</a></li>
<li><a
href="https://github.com/ronnybremer"><code>@ronnybremer</code></a>
made their first contribution in <a
href="https://redirect.github.com/Peltoche/ical-rs/pull/61">Peltoche/ical-rs#61</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/Peltoche/ical-rs/compare/v0.10.0...v0.11.0">https://github.com/Peltoche/ical-rs/compare/v0.10.0...v0.11.0</a></p>
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chore: Release ical version 0.11.0</li>
<li><a
href="e435769c7b"><code>e435769</code></a>
final fix to test for new split_line</li>
<li><a
href="1db49580e1"><code>1db4958</code></a>
fixed incorrect test for new split_line</li>
<li><a
href="248227b08d"><code>248227b</code></a>
added test case with multibyte characters for split_line</li>
<li><a
href="ba696e5c02"><code>ba696e5</code></a>
take 75 chars of the first line and 74 chars of subsequent lines</li>
<li><a
href="28ffa72bb1"><code>28ffa72</code></a>
replaced split_line with a multibyte aware version</li>
<li><a
href="a10a15d571"><code>a10a15d</code></a>
Fix <a
href="https://redirect.github.com/Peltoche/ical-rs/issues/62">#62</a></li>
<li><a
href="7f93147560"><code>7f93147</code></a>
Update the version inside the readme</li>
<li>See full diff in <a
href="https://github.com/Peltoche/ical-rs/compare/v0.10.0...v0.11.0">compare
view</a></li>
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Bumps [rayon](https://github.com/rayon-rs/rayon) from 1.9.0 to 1.10.0.
<details>
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href="https://github.com/rayon-rs/rayon/blob/main/RELEASES.md">rayon's
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methods <code>chunk_by</code>
and <code>chunk_by_mut</code> added in Rust 1.77.</li>
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<li><a
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<li><a
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fix typo</li>
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<li><a
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Unify <code>chunks</code>, <code>fold_chunks</code>, and
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<li><a
href="911d6d098c"><code>911d6d0</code></a>
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Add some documentation about <em>when</em> broadcasts run</li>
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Add more internal enforcement of static/scope lifetimes</li>
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Simplify calls that use the panic_handler</li>
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# 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.
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# Description
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# Description
Binary values passed to `table` may or may not be pretty formatted based
on the output destination. This leads to weird behavior as documented in
#12287. This PR changes `table` to always pretty print binary values.
However, binary values passed to external commands will not be formatted
(this is the existing behavior).
# User-Facing Changes
This is a breaking change. E.g.:
```nushell
0x[8989] | table | cat -
```
used to print raw bytes, but it will now print the pretty formatted
bytes.
# After Submitting
Add to 0.92.0 release notes and update documentation.
Tables are the most common "large" data structures Nushell itself
creates. Benchmarking them and their common operations are central
- Creation via the explicit `[[]; [] []]` literal syntax
- `get` Access (`math sum` to guarantee consumption)
- `select` Slicing by columns
Currently low column count and high row count as the default example.
Future benchmarks should diversify this and provide tables with
irregular column order/presence (as this is currently allowed but rare
and requires extra bookkeeping in different commands)
# Description
Closes https://github.com/nushell/nushell/issues/12257
This was down to the use of `eval_block` instead of
`eval_block_with_early_return`. We may want to reconsider how we
differentiate between this behavior. We currently need to check all the
remaining commands that can invoke a closure block, if they properly
handle `ShellError::Return` as a passing of a `Value`
- **Add test for `return` in `filter` closure**
- **Fix use of `return` in `filter` closure**
# User-Facing Changes
You can now return a value from a `filter` closure
# Tests + Formatting
Regression test
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Boxes `Record` inside `Value` to reduce memory usage, `Value` goes from
`72` -> `56` bytes after this change.
# User-Facing Changes
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helps us keep track of breaking changes. -->
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# Description
@fdncred found another histogram based algorithm to detect columns, and
rewrite it in rust: https://github.com/fdncred/guess-width
I have tested it manually, and it works good with `df`, `docker ps`,
`^ps`. This pr is going to use the algorithm in `detect columns`
Fix: #4183
The pitfall of new algorithm:
1. it may not works well if there isn't too much rows of input
2. it may not works well if the length of value is less than the header
to value, e.g:
```
c1 c2 c3 c4 c5
a b c d e
g h i j k
g a a q d
a v c q q | detect columns
```
In this case, users might need to use ~~`--old`~~ `--legacy` to make it
works well.
# User-Facing Changes
User might need to add ~~`--old`~~ `--legacy` to scripts if they find
`detect columns` in their scripts broken.
# Tests + Formatting
Done
# After Submitting
NaN
# Description
Uses the new `nu-plugin-test-support` crate to test the examples of
commands provided by plugins in the repo.
Also fixed some of the examples to pass.
# User-Facing Changes
- Examples that are more guaranteed to work
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
Fixes#12280.
# Description
This removes the dependency on the `difference` crate, which is
unmaintained, for `nu-plugin-test-support`. The `similar` crate
(Apache-2.0) is used instead, which is a bit larger and more complex,
but still suitable for a dev dep for tests. Also switched to use
`crossterm` for colors, since `similar` doesn't come with any terminal
pretty printing functionality.
# User-Facing Changes
None - output should be identical.
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# Description
Cleanup search terms and help usage to be consistent and include
coreutils so people can easily find out which commands are coreutils.
or
```nushell
help commands | where usage =~ coreutils | reject params input_output
```
# User-Facing Changes
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helps us keep track of breaking changes. -->
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Hi,
This PR aims at implementing the first iteration for `uname` using
`uutils`. Couple of things:
* Currently my [PR](https://github.com/uutils/coreutils/pull/5921) to
make the required changes is pending in `uutils` repo.
* I guess the number of flags has to be investigated. Still the tests
cover all of them.
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# Description
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(`cargo fmt --all` applies these changes)
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to check that you're using the standard code style
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make sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- [X] `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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# After Submitting
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---------
Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
# Description
Fixes: #11887Fixes: #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
# 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
# Description
This PR adds a `--params` param to `query db`. This closes#11643.
You can't combine both named and positional parameters, I think this
might be a limitation with rusqlite itself. I tried using named
parameters with indices like `{ ':named': 123, '1': "positional" }` but
that always failed with a rusqlite error. On the flip side, the other
way around works: for something like `VALUES (:named, ?)`, you can treat
both as positional: `-p [hello 123]`.
This PR introduces some very gnarly code repetition in
`prepared_statement_to_nu_list`. I tried, I swear; the compiler wasn't
having any of it, it kept telling me to box my closures and then it said
that the reference lifetimes were incompatible in the match arms. I gave
up and put the mapping code in the match itself, but I'm still not
happy.
Another thing I'm unhappy about: I don't like how you have to put the
`:colon` in named parameters. I think nushell should insert it if it's
[missing](https://www.sqlite.org/lang_expr.html#parameters). But this is
the way [rusqlite
works](https://docs.rs/rusqlite/latest/rusqlite/trait.Params.html#example-named),
so for now, I'll let it be consistent. Just know that it's not really a
blocker, and it isn't a compatibility change to later make `{ colon: 123
}` work, without the quotes and `:`. This would require allocating and
turning our pretty little `&str` into a `String`, though
# User-Facing Changes
Less incentive to leave yourself open to SQL injection with statements
like `query db $"INSERT INTO x VALUES \($unsafe_user_input)"`.
Additionally, the `$""` syntax being annoying with parentheses plays in
our favor, making users even more likely to use ? with `--params`.
# Tests + Formatting
Hehe
# Description
The hover was bugged with 3 backticks. I don't understand how it worked
before, but this apparently now works correctly on my machine. This is
really puzzling. My next step is to make a test to assert this will
break a little less. I fixed it 3 times in the past
# Tests + Formatting
Added a test to be sure this doesn't breaks again 😄 (at least from
nushell/nushell side)
# Description
@WindSoilder [reported on
Discord](https://discord.com/channels/601130461678272522/855947301380947968/1221233630093901834)
that some plugin stream tests have been failing on the CI. It seems to
just be a timing thing (probably due to busy CI), so this extends the
amount of time that we can wait for a condition to be true.
# User-Facing Changes
None
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# Description
There wasn't really a good way to implement a command group style (e.g.
`from`, `query`, etc.) command in the past that just returns the help
text even if `--help` is not passed. This adds a new engine call that
just does that.
This is actually something I ran into before when developing the dbus
plugin, so it's nice to fix it.
# User-Facing Changes
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
- [ ] Document `GetHelp` engine call in proto
# Description
Adds a `nu-plugin-test-support` crate with an interface that supports
testing plugins.
Unlike in reality, these plugins run in the same process on separate
threads. This will allow
testing aspects of the plugin internal state and handling serialized
plugin custom values easily.
We still serialize their custom values and all of the engine to plugin
logic is still in play, so
from a logical perspective this should still expose any bugs that would
have been caused by that.
The only difference is that it doesn't run in a different process, and
doesn't try to serialize
everything to the final wire format for stdin/stdout.
TODO still:
- [x] Clean up warnings about private types exposed in trait definition
- [x] Automatically deserialize plugin custom values in the result so
they can be inspected
- [x] Automatic plugin examples test function
- [x] Write a bit more documentation
- [x] More tests
- [x] Add MIT License file to new crate
# User-Facing Changes
Plugin developers get a nice way to test their plugins.
# Tests + Formatting
Run the tests with `cargo test -p nu-plugin-test-support --
--show-output` to see some examples of what the failing test output for
examples can look like. I used the `difference` crate (MIT licensed) to
make it look nice.
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
- [ ] Add a section to the book about testing
- [ ] Test some of the example plugins this way
- [ ] Add example tests to nu_plugin_template so plugin developers have
something to start with
# 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
Bumps [base64](https://github.com/marshallpierce/rust-base64) from
0.21.7 to 0.22.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/marshallpierce/rust-base64/blob/master/RELEASE-NOTES.md">base64's
changelog</a>.</em></p>
<blockquote>
<h1>0.22.0</h1>
<ul>
<li><code>DecodeSliceError::OutputSliceTooSmall</code> is now
conservative rather than precise. That is, the error will only occur if
the decoded output <em>cannot</em> fit, meaning that
<code>Engine::decode_slice</code> can now be used with exactly-sized
output slices. As part of this, <code>Engine::internal_decode</code> now
returns <code>DecodeSliceError</code> instead of
<code>DecodeError</code>, but that is not expected to affect any
external callers.</li>
<li><code>DecodeError::InvalidLength</code> now refers specifically to
the <em>number of valid symbols</em> being invalid (i.e. <code>len % 4
== 1</code>), rather than just the number of input bytes. This avoids
confusing scenarios when based on interpretation you could make a case
for either <code>InvalidLength</code> or <code>InvalidByte</code> being
appropriate.</li>
<li>Decoding is somewhat faster (5-10%)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="5d70ba7576"><code>5d70ba7</code></a>
Merge pull request <a
href="https://redirect.github.com/marshallpierce/rust-base64/issues/269">#269</a>
from marshallpierce/mp/decode-precisely</li>
<li><a
href="efb6c006c7"><code>efb6c00</code></a>
Release notes</li>
<li><a
href="2b91084a31"><code>2b91084</code></a>
Add some tests to boost coverage</li>
<li><a
href="9e9c7abe65"><code>9e9c7ab</code></a>
Engine::internal_decode now returns DecodeSliceError</li>
<li><a
href="a8a60f43c5"><code>a8a60f4</code></a>
Decode main loop improvements</li>
<li><a
href="a25be0667c"><code>a25be06</code></a>
Simplify leftover output writes</li>
<li><a
href="9979cc33bb"><code>9979cc3</code></a>
Keep morsels as separate bytes</li>
<li><a
href="37670c5ec2"><code>37670c5</code></a>
Bump dev toolchain version (<a
href="https://redirect.github.com/marshallpierce/rust-base64/issues/268">#268</a>)</li>
<li>See full diff in <a
href="https://github.com/marshallpierce/rust-base64/compare/v0.21.7...v0.22.0">compare
view</a></li>
</ul>
</details>
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Bumps [heck](https://github.com/withoutboats/heck) from 0.4.1 to 0.5.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/withoutboats/heck/blob/master/CHANGELOG.md">heck's
changelog</a>.</em></p>
<blockquote>
<h1>0.5.0</h1>
<ul>
<li>Add <code>no_std</code> support.</li>
<li>Remove non-additive <code>unicode</code> feature. The library now
uses <code>char::is_alphanumeric</code>
instead of the <code>unicode-segmentation</code> library to determine
word boundaries in all cases.</li>
</ul>
</blockquote>
</details>
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</details>
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- fixes#11014
# Description
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When the `command_not_found` hook is entered, we set an environment
variable for context. If an unknown command is encountered and the
`command_not_found` context environment variable is already present, it
implies a command in the hook closure is also not found. We stop the
recursion right there.
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Incorrect `command_not_found` hooks can be caught without panicking.
# 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
> **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
> ```
-->
Tests are passing.
# 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.
-->
# 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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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))
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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
> ```
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# After Submitting
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Manual checks are added to `parse_let`, `parse_mut`, and `parse_const`.
`parse_var_with_opt_type` is also fixed to update `spans_idx` correctly.
Fixes#12125.
It's technically a fix, but I'd rather not merge this directly. I'm
making this PR to bring into attention the code quality of the parser
code. For example:
* Inconsistent usage of `spans_idx`. What is its purpose, and which
parsing functions need it? I suspect it's possible to remove the usage
of `spans_idx` entirely.
* Lacking documentation for top-level functions. What does `mutable`
mean for `parse_var_with_opt_type()`?
* Inconsistent error reporting. Usage of both `working_set.error()` and
`working_set.parse_errors.push()`. Using `ParseError::Expected` for an
invalid variable name when there's `ParseError::VariableNotValid` (from
`parser.rs:5237`). Checking variable names manually when there's
`is_variable()` (from `parser.rs:2905`).
* `span()` is a terrible name for a function that flattens a bunch of
spans into one (from `nu-protocal/src/span.rs:92`). The top-level
comment (`Used when you have a slice of spans of at least size 1`)
doesn't help either.
I've only looked at a small portion of the parser code; I expect there
are a lot more. These issues made it much harder to fix a simple bug
like #12125. I believe we should invest some effort to cleanup the
parser code, which will ease maintainance in the future. I'll willing to
help if there is interest.
# 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.
fixes#11900
# Description
Use `serde_json` instead.
# User-Facing Changes
The problem described in the issue now no longer persists.
No whitespace in the output of `to json --raw`
Output of unicode escape changed to consistent `\uffff`
# Tests + Formatting
I corrected all Tests that were affected by this change.
# 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>
# 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.
closes#12115
# Description
This fix addresses a bug where the --tabs flag couldn't be utilized due
to improper handling of the tab quantity provided by the user.
Previously, the code mistakenly attempted to convert the tab quantity to
a boolean value, leading to a conversion error. The resolution involves
adjusting the condition clauses to properly validate the presence of the
flag's value. Now, the code checks whether the get_flag() function
returns a value or None associated with the --tabs flag. This adjustment
enables the --tabs flag to function correctly, triggering the
appropriate condition and allowing the conversion to proceed as
expected. Similarly, the fix applies to the --indent flag. Additionally,
a default case was added, and the conversion now works properly without
flags. Two tests were added to validate the corrected behavior of these
flags.
# User-Facing Changes
Now the conversion should work properly instead of displaying an error.
# Tests + Formatting
-🟢 toolkit fmt
-🟢 toolkit clippy
-🟢 toolkit test
-🟢 toolkit test stdlib
To run added tests:
- cargo test --package nu-command --test main --
format_conversions::json::test_tabs_indent_flag
- cargo test --package nu-command --test main --
format_conversions::json::test_indent_flag
# Description
It was a bit ugly that when new `EngineCall`s or response types were
added, they needed to be added to multiple places with redundant code
just to change the types, even if they didn't have any stream content.
This fixes that and locates all of that logic in one place.
# User-Facing Changes
None
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# Description
Improves the accuracy of sleep when the duration is larger than 100ms.
Fixes#12223.
# User-Facing Changes
Sleeping for 150ms should work now.
```nushell
~/nushell> timeit { sleep 150ms } 03/19/2024 10:41:55 AM AM
151ms 344µs 201ns
```
# 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
