I got some feedback on Mastodon that it wasn't clear how to use the
linter and formatter together in pre-commit (mostly in the pre-commit
repo's documentation, which is even less clear, but the two should be
consistent).
## Summary
Being able to set `--no-cache` without touching the command line makes
comparing formatter speed with e.g. Hyperfine a lot easier; Black allows
one to set `BLACK_CACHE_DIR=/dev/null`, but setting
`RUFF_CACHE_DIR=/dev/null` has Ruff choke:
```
error: Failed to initialize cache at /dev/null: Not a directory (os error 20)
error: Failed to initialize cache at /dev/null: Not a directory (os error 20)
warning: Failed to open cache file '/dev/null/0.1.4/18160934645386409287': Not a directory (os error 20)
```
Alternately, we could make a `/dev/null` (or `nul` on Windows) cache
directory imply `--no-cache`?
## Test Plan
None yet.
This PR updates the editor integration section of the documentation for
Neovim.
* Removes the now archived `null-ls` plugin
* Add `nvim-lint` (for linters) and `conform.nvim` (for formatter)
plugins
Screenshot ref: b7032228-57b1-4141-ae17-e186c4428b61
## Summary
Similarly to https://github.com/astral-sh/ruff/pull/8302, the
configuration documentation mentions `extend-exclude` for tool specific
configuration, although neither `format` nor `lint` supports it, since
they only support `exclude`.
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## Summary
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## Test Plan
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**Summary** Prepare for the black preview style becoming the black
stable style at the end of the year.
This adds a new test file to compare stable and preview on some relevant
preview options in black, and makes `format_dev` understand the black
preview flag. I've added poetry as a project that uses preview.
I've implemented one specific deviation (collapsing of stub
implementation in non-stub files) which showed up in poetry for testing.
This also improves poetry compatibility from 0.99891 to 0.99919.
Fixes#7440
New compatibility stats:
| project | similarity index | total files | changed files |
|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75803 | 1799 | 1647 |
| django | 0.99983 | 2772 | 35 |
| home-assistant | 0.99953 | 10596 | 189 |
| poetry | 0.99919 | 317 | 12 |
| transformers | 0.99963 | 2657 | 332 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99978 | 3669 | 20 |
| warehouse | 0.99969 | 654 | 15 |
| zulip | 0.99970 | 1459 | 22 |
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## Summary
closes#8217
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## Test Plan
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## Summary
The previous configuration for `ruff` contained an unrecognized field
`magic-trailing-comma` set to "respect". As of version 0.1.2 of `ruff`,
this field was not recognized and resulted in a TOML parse error when
running the `ruff format .` command. This change removes the
`magic-trailing-comma` field and adds the recognized
`skip-magic-trailing-comma` field set to `false`.
## Test Plan
Tested locally with `ruff` 0.1.2.
Per some previous discussion, the policy is not clear about what happens
if the behavior is similar but the _scope_ in which a rule is applied
changes.
## Summary
This PR updates our documentation for the upcoming formatter release.
Broadly, the documentation is now structured as follows:
- Overview
- Tutorial
- Installing Ruff
- The Ruff Linter
- Overview
- `ruff check`
- Rule selection
- Error suppression
- Exit codes
- The Ruff Formatter
- Overview
- `ruff format`
- Philosophy
- Configuration
- Format suppression
- Exit codes
- Black compatibility
- Known deviations
- Configuring Ruff
- pyproject.toml
- File discovery
- Configuration discovery
- CLI
- Shell autocompletion
- Preview
- Rules
- Settings
- Integrations
- `pre-commit`
- VS Code
- LSP
- PyCharm
- GitHub Actions
- FAQ
- Contributing
The major changes include:
- Removing the "Usage" section from the docs, and instead folding that
information into "Integrations" and the new Linter and Formatter
sections.
- Breaking up "Configuration" into "Configuring Ruff" (for generic
configuration), and new Linter- and Formatter-specific sections.
- Updating all example configurations to use `[tool.ruff.lint]` and
`[tool.ruff.format]`.
My suggestion is to pull and build the docs locally, and review by
reading them in the browser rather than trying to parse all the code
changes.
Closes https://github.com/astral-sh/ruff/issues/7235.
Closes https://github.com/astral-sh/ruff/issues/7647.
Adds a new `ruff version` sub-command which displays long version
information in the style of `cargo` and `rustc`. We include the number
of commits since the last release tag if its a development build, in the
style of Python's versioneer.
```
❯ ruff version
ruff 0.1.0+14 (947940e91 2023-10-18)
```
```
❯ ruff version --output-format json
{
"version": "0.1.0",
"commit_info": {
"short_commit_hash": "947940e91",
"commit_hash": "947940e91269f20f6b3f8f8c7c63f8e914680e80",
"commit_date": "2023-10-18",
"last_tag": "v0.1.0",
"commits_since_last_tag": 14
}
}%
```
```
❯ cargo version
cargo 1.72.1 (103a7ff2e 2023-08-15)
```
## Test plan
I've tested this manually locally, but want to at least add unit tests
for the message formatting. We'd also want to check the next release to
ensure the information is correct.
I checked build behavior with a detached head and branches.
## Future work
We could include rustc and cargo versions from the build, the current
Python version, and other diagnostic information for bug reports.
The `--version` and `-V` output is unchanged. However, we could update
it to display the long ruff version without the rust and cargo versions
(this is what cargo does). We'll need to be careful to ensure this does
not break downstream packages which parse our version string.
```
❯ ruff --version
ruff 0.1.0
```
The LSP should be updated to use `ruff version --output-format json`
instead of parsing `ruff --version`.
- Add changelog entry for 0.1.1
- Bump version to 0.1.1
- Require preview for fix added in #7967
- Allow duplicate headings in changelog (markdownlint setting)
## Summary
We don't enable E501 by default, but `line-length` is a useful example
for configuration, so we now set `--extend-select` in the tutorial with
a note to that effect.
I've also updated all the outputs to match the latest CLI behavior, and
changed the example from `List` to `Sequence` because `List` now spits
out two diagnostics (one for the import, one for the usage), which IMO
is confusing for beginners.
Closes https://github.com/astral-sh/ruff/issues/7572
Drops formatting specific rules from the default rule set as they
conflict with formatters in general (and in particular, conflict with
our formatter). Most of these rules are in preview, but the removal of
`line-too-long` and `mixed-spaces-and-tabs` is a change to the stable
rule set.
## Example
The following no longer raises `E501`
```
echo "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx = 1" | ruff check -
```
Rebase of https://github.com/astral-sh/ruff/pull/5119 authored by
@evanrittenhouse with additional refinements.
## Changes
- Adds `--unsafe-fixes` / `--no-unsafe-fixes` flags to `ruff check`
- Violations with unsafe fixes are not shown as fixable unless opted-in
- Fix applicability is respected now
- `Applicability::Never` fixes are no longer applied
- `Applicability::Sometimes` fixes require opt-in
- `Applicability::Always` fixes are unchanged
- Hints for availability of `--unsafe-fixes` added to `ruff check`
output
## Examples
Check hints at hidden unsafe fixes
```
❯ ruff check example.py --no-cache --select F601,W292
example.py:1:14: F601 Dictionary key literal `'a'` repeated
example.py:2:15: W292 [*] No newline at end of file
Found 2 errors.
[*] 1 fixable with the `--fix` option (1 hidden fix can be enabled with the `--unsafe-fixes` option).
```
We could add an indicator for which violations have hidden fixes in the
future.
Check treats unsafe fixes as applicable with opt-in
```
❯ ruff check example.py --no-cache --select F601,W292 --unsafe-fixes
example.py:1:14: F601 [*] Dictionary key literal `'a'` repeated
example.py:2:15: W292 [*] No newline at end of file
Found 2 errors.
[*] 2 fixable with the --fix option.
```
Also can be enabled in the config file
```
❯ cat ruff.toml
unsafe-fixes = true
```
And opted-out per invocation
```
❯ ruff check example.py --no-cache --select F601,W292 --no-unsafe-fixes
example.py:1:14: F601 Dictionary key literal `'a'` repeated
example.py:2:15: W292 [*] No newline at end of file
Found 2 errors.
[*] 1 fixable with the `--fix` option (1 hidden fix can be enabled with the `--unsafe-fixes` option).
```
Diff does not include unsafe fixes
```
❯ ruff check example.py --no-cache --select F601,W292 --diff
--- example.py
+++ example.py
@@ -1,2 +1,2 @@
x = {'a': 1, 'a': 1}
-print(('foo'))
+print(('foo'))
\ No newline at end of file
Would fix 1 error.
```
Unless there is opt-in
```
❯ ruff check example.py --no-cache --select F601,W292 --diff --unsafe-fixes
--- example.py
+++ example.py
@@ -1,2 +1,2 @@
-x = {'a': 1}
-print(('foo'))
+x = {'a': 1, 'a': 1}
+print(('foo'))
\ No newline at end of file
Would fix 2 errors.
```
https://github.com/astral-sh/ruff/pull/7790 will improve the diff
messages following this pull request
Similarly, `--fix` and `--fix-only` require the `--unsafe-fixes` flag to
apply unsafe fixes.
## Related
Replaces #5119
Closes https://github.com/astral-sh/ruff/issues/4185
Closes https://github.com/astral-sh/ruff/issues/7214
Closes https://github.com/astral-sh/ruff/issues/4845
Closes https://github.com/astral-sh/ruff/issues/3863
Addresses https://github.com/astral-sh/ruff/issues/6835
Addresses https://github.com/astral-sh/ruff/issues/7019
Needs follow-up https://github.com/astral-sh/ruff/issues/6962
Needs follow-up https://github.com/astral-sh/ruff/issues/4845
Needs follow-up https://github.com/astral-sh/ruff/issues/7436
Needs follow-up https://github.com/astral-sh/ruff/issues/7025
Needs follow-up https://github.com/astral-sh/ruff/issues/6434
Follow-up #7790
Follow-up https://github.com/astral-sh/ruff/pull/7792
---------
Co-authored-by: Evan Rittenhouse <evanrittenhouse@gmail.com>
