ruff/crates/flake8_to_ruff/README.md
Charlie Marsh 9b43162cc4
Move documentation to docs.astral.sh/ruff (#7419)
## 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.
2023-09-15 22:49:42 -04:00

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Markdown

# flake8-to-ruff
Convert existing Flake8 configuration files (`setup.cfg`, `tox.ini`, or `.flake8`) for use with
[Ruff](https://github.com/astral-sh/ruff).
Generates a Ruff-compatible `pyproject.toml` section.
## Installation and Usage
### Installation
Available as [`flake8-to-ruff`](https://pypi.org/project/flake8-to-ruff/) on PyPI:
```shell
pip install flake8-to-ruff
```
### Usage
To run `flake8-to-ruff`:
```shell
flake8-to-ruff path/to/setup.cfg
flake8-to-ruff path/to/tox.ini
flake8-to-ruff path/to/.flake8
```
`flake8-to-ruff` will print the relevant `pyproject.toml` sections to standard output, like so:
```toml
[tool.ruff]
exclude = [
'.svn',
'CVS',
'.bzr',
'.hg',
'.git',
'__pycache__',
'.tox',
'.idea',
'.mypy_cache',
'.venv',
'node_modules',
'_state_machine.py',
'test_fstring.py',
'bad_coding2.py',
'badsyntax_*.py',
]
select = [
'A',
'E',
'F',
'Q',
]
ignore = []
[tool.ruff.flake8-quotes]
inline-quotes = 'single'
[tool.ruff.pep8-naming]
ignore-names = [
'foo',
'bar',
]
```
### Plugins
`flake8-to-ruff` will attempt to infer any activated plugins based on the settings provided in your
configuration file.
For example, if your `.flake8` file includes a `docstring-convention` property, `flake8-to-ruff`
will enable the appropriate [`flake8-docstrings`](https://pypi.org/project/flake8-docstrings/)
checks.
Alternatively, you can manually specify plugins on the command-line:
```shell
flake8-to-ruff path/to/.flake8 --plugin flake8-builtins --plugin flake8-quotes
```
## Limitations
1. Ruff only supports a subset of the Flake configuration options. `flake8-to-ruff` will warn on and
ignore unsupported options in the `.flake8` file (or equivalent). (Similarly, Ruff has a few
configuration options that don't exist in Flake8.)
1. Ruff will omit any rule codes that are unimplemented or unsupported by Ruff, including rule
codes from unsupported plugins. (See the
[documentation](https://docs.astral.sh/ruff/faq/#how-does-ruff-compare-to-flake8) for the complete
list of supported plugins.)
## License
MIT
## Contributing
Contributions are welcome and hugely appreciated. To get started, check out the
[contributing guidelines](https://github.com/astral-sh/ruff/blob/main/CONTRIBUTING.md).