Sphinx Lint

Sphinx Lint is based on rstlint.py from CPython.

What is Sphinx Lint, what is it not?

Sphinx Lint should:

• be reasonably fast so it's comfortable to use as a linter in your editor.
• be usable on a single file.
• not give any false positives (probably a utopia, but let's try).
• not spend too much effort finding errors that sphinx-build already finds (or can easily find).
• focus on finding errors that are not visible to sphinx-build.

Using Sphinx Lint

Here are some example invocations of Sphinx Lint from the command line:

sphinx-lint           # check all dirs and files
sphinx-lint file.rst  # check a single file
sphinx-lint docs      # check a directory
sphinx-lint -i venv   # ignore a file/directory
sphinx-lint -h        # for more options

Sphinx Lint can also be used via pre-commit. We recommend using a configuration like this:

  - repo: https://github.com/sphinx-contrib/sphinx-lint
    rev: LATEST_SPHINXLINT_RELEASE_TAG
    hooks:
      - id: sphinx-lint

Known issues

Currently Sphinx Lint can't work with tables, there's no understanding of how linesplit works in tables, like:

   +-----------------------------------------+-----------------------------+---------------+
   | Method                                  | Checks that                 | New in        |
   +=========================================+=============================+===============+
   | :meth:`assertEqual(a, b)                | ``a == b``                  |               |
   | <TestCase.assertEqual>`                 |                             |               |
   +-----------------------------------------+-----------------------------+---------------+

as Sphinx Lint works line by line it will inevitably think the :meth: role is not closed properly.

To avoid false positives, some rules are skipped if we're in a table.

Contributing

A quick way to test if some syntax is valid from a pure reStructuredText point of view, one case use docutils's pseudoxml writer, like:

$ docutils --writer=pseudoxml tests/fixtures/xpass/role-in-code-sample.rst
<document source="tests/fixtures/xpass/role-in-code-sample.rst">
    <paragraph>
        Found in the pandas documentation, this is valid:
    <bullet_list bullet="*">
        <list_item>
            <paragraph>
                A pandas class (in the form
                <literal>
                    :class:`pandas.Series`
                )
        <list_item>
            <paragraph>
                A pandas method (in the form
                <literal>
                    :meth:`pandas.Series.sum`
                )
        <list_item>
            <paragraph>
                A pandas function (in the form
                <literal>
                    :func:`pandas.to_datetime`
                )
    <paragraph>
        it's documenting roles using code samples (double backticks).

Releasing

1. Make sure that the CI tests pass and optionally double-check locally with "friends projects" by running:

   sh download-more-tests.sh python -m pytest

2. Go on the Releases page
3. Click "Draft a new release"
4. Click "Choose a tag"
5. Type the next vX.Y.Z version and select "Create new tag: vX.Y.Z on publish"
6. Leave the "Release title" blank (it will be autofilled)
7. Click "Generate release notes" and amend as required
8. Click "Publish release"
9. Check the tagged GitHub Actions build has deployed to PyPI

License

As this script was in the CPython repository the license is the Python Software Foundation Licence Version 2, see the LICENSE file for a full version.