## Summary
The tokenizer was split into a forward and a backwards tokenizer. The
backwards tokenizer uses the same names as the forwards ones (e.g.
`next_token`). The backwards tokenizer gets the comment ranges that we
already built to skip comments.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
We're planning to move the documentation from
[https://beta.ruff.rs/docs](https://beta.ruff.rs/docs) to
[https://docs.astral.sh/ruff](https://docs.astral.sh/ruff), for a few
reasons:
1. We want to remove the `beta` from the domain, as Ruff is no longer
considered beta software.
2. We want to migrate to a structure that could accommodate multiple
future tools living under one domain.
The docs are actually already live at
[https://docs.astral.sh/ruff](https://docs.astral.sh/ruff), but later
today, I'll add a permanent redirect from the previous to the new
domain. **All existing links will continue to work, now and in
perpetuity.**
This PR contains the code changes necessary for the updated
documentation. As part of this effort, I moved the playground and
documentation from my personal Cloudflare account to our team Cloudflare
account (hence the new `--project-name` references). After merging, I'll
also update the secrets on this repo.
## Summary
Given a trailing operator comment in a unary expression, like:
```python
if (
not # comment
a):
...
```
We were attaching these to the operand (`a`), but formatting them in the
unary operator via special handling. Parents shouldn't format the
comments of their children, so this instead attaches them as dangling
comments on the unary expression. (No intended change in formatting.)
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Adds the maximum of 320 for the line-length setting to the JSON schema
for better integration with IDEs.
Related https://github.com/astral-sh/ruff/pull/6873
## Test Plan
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## Summary
The previous reference was “CWE-78: Improper Neutralization of Special
Elements used in an OS Command ('OS Command Injection')”, which
describes another issue. The new reference is “CWE-426: Untrusted Search
Path”, which describes exactly the problem that this rule should warn
about.
## Test Plan
The change was not tested, as it only changes two numbers in the
documentation.
## Summary
Adds `LOG009` from
[flake8-logging](https://github.com/adamchainz/flake8-logging). Also
adds the boilerplate for a new plugin
Checks for usages of undocumented `logging.WARN` constant and suggests
replacement with `logging.WARNING`.
## Test Plan
`cargo test` with fresh fixture
## Issue links
Refers: https://github.com/astral-sh/ruff/issues/7248
## Summary
Extends UP040 to support moving type variables with
bounds/constraints/variance that are used in type aliases to use PEP-695
syntax.
Part of #4617.
## Test Plan
The existing tests added by #6314 already cover the relevant cases.
Rules like D209 and D205 are only intended to apply to multi-line
docstrings. If a docstring is single-quoted, but extends via a
continuation, it should be excluded (it'll be flagged by another rule
anyway). Closes https://github.com/astral-sh/ruff/issues/7058.
## Summary
At some point, we removed these so that they wouldn't be autocompleted
for users, since we wanted to discourage usage of `ALL`. But given that
they're valid values, I think that was a bad idea -- it leads to an even
more confusing experience whereby JSON Schema validators tell you that
you have an error, when you don't.
Closes https://github.com/astral-sh/ruff/issues/7261.
The rule selector is not useful because `--select PREVIEW` only targets
Ruff developers and `--ignore PREVIEW` has no effect due to its low
specificity. We may restore it later if useful.
`ComparableExpr` includes the `ExprContext` field on an expression, so,
e.g., the two tuples in `(a, b) = (a, b)` won't be considered equal.
Similarly, the tuples in `[(a, b) for (a, b) in c]` _also_ wouldn't be
considered equal. I find this behavior surprising, since
`ComparableExpr` is intended to allow you to compare two ASTs, but
`ExprContext` is really encoding information about the broader context
for the expression.
Bumps [shlex](https://github.com/comex/rust-shlex) from 1.1.0 to 1.2.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/comex/rust-shlex/blob/master/CHANGELOG.md">shlex's
changelog</a>.</em></p>
<blockquote>
<h1>1.2.0</h1>
<ul>
<li>Adds <code>bytes</code> module to support operating directly on byte
strings.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/comex/rust-shlex/commits">compare view</a></li>
</ul>
</details>
<br />
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Dependabot creating any more for this major version (unless you reopen
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Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
Given a statement like:
```python
result = (
f(111111111111111111111111111111111111111111111111111111111111111111111111111111111)
+ 1
)()
```
When we go to parenthesize the target of the assignment, we use
`maybe_parenthesize_expression` with `Parenthesize::IfBreaks`. This then
checks if the call on the right-hand side needs to be parenthesized, the
implementation of which looks like:
```rust
impl NeedsParentheses for ExprCall {
fn needs_parentheses(
&self,
_parent: AnyNodeRef,
context: &PyFormatContext,
) -> OptionalParentheses {
if CallChainLayout::from_expression(self.into(), context.source())
== CallChainLayout::Fluent
{
OptionalParentheses::Multiline
} else if context.comments().has_dangling(self) {
OptionalParentheses::Always
} else {
self.func.needs_parentheses(self.into(), context)
}
}
}
```
Checking for `self.func.needs_parentheses(self.into(), context)` is
problematic, since, as in the example above, `self.func` may _already_
be parenthesized -- in which case, we _don't_ want to parenthesize the
entire expression. If we do, we end up with this non-ideal formatting:
```python
result = (
(
f(
111111111111111111111111111111111111111111111111111111111111111111111111111111111
)
+ 1
)()
)
```
This PR modifies the `NeedsParentheses` implementations for call chain
expressions to return `Never` if the inner expression has its own
parentheses, in which case, the formatting implementations for those
expressions will preserve them anyway.
Closes https://github.com/astral-sh/ruff/issues/7370.
## Test Plan
Zulip improves a bit, everything else is unchanged.
Before:
| project | similarity index | total files | changed files |
|--------------|------------------:|------------------:|------------------:|
| cpython | 0.76083 | 1789 | 1632 |
| django | 0.99981 | 2760 | 40 |
| transformers | 0.99944 | 2587 | 413 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99983 | 3496 | 18 |
| warehouse | 0.99834 | 648 | 20 |
| zulip | 0.99956 | 1437 | 23 |
After:
| project | similarity index | total files | changed files |
|--------------|------------------:|------------------:|------------------:|
| cpython | 0.76083 | 1789 | 1632 |
| django | 0.99981 | 2760 | 40 |
| transformers | 0.99944 | 2587 | 413 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99983 | 3496 | 18 |
| warehouse | 0.99834 | 648 | 20 |
| **zulip** | **0.99962** | **1437** | **22** |
## Summary
When fixing `reversed(sorted(x, reverse=False))`, we rewrite as
`sorted(x, reverse=True)`. However, if the `reverse` argument isn't
`True` or `False`, we leave it as-is, which is incorrect.
Now, given `reversed(sorted(x, reverse=y))`, we rewrite as `sorted(x,
reverse=not y)`.
## Summary
Adds warnings for cases where:
- A selector does not include any rules because preview is disabled
- A nursery rule is selected without the preview flag
## Test plan
Add integration tests
Moves the new rule from nursery to preview for the upcoming release.
Adds new test coverage for selection of a single preview rule and fixes
a bug where preview rules were incorrectly selectable with exact codes.
## Summary
This PR adds a benchmarking script for the formatter, which benchmarks
the Ruff formatter against Black, yapf, and autopep8.
Three benchmarks are included:
1. Format everything.
2. Format everything, but use a single thread.
3. Format everything, but `--check` (don't write to disk).
There's some nuance in figuring out the right combination of arguments
to each command, but the _main_ nuance is to ensure that we always run
the given formatter (and modify the target repo in-place) prior to
benchmarking it, so that the formatters aren't disadvantaged by the
existing formatting of the target repo. (E.g.: prior to benchmarking
Black's preview style, we need to make sure we format the target repo
with Black's preview style; otherwise, preview style appears much
slower.)
Part of https://github.com/astral-sh/ruff/issues/7309.
