This action is known to support all GitHub-hosted runner OSes. In addition, only
published versions of _Black_ are supported (i.e. whatever is available on PyPI).
-Finally, this action installs _Black_ with both the `colorama` and `python2` extras so
-the `--color` flag and formatting Python 2 code are supported.
+Finally, this action installs _Black_ with the `colorama` extra so the `--color` flag
+should work fine.
## Usage
that. Note that the action's version you select is independent of the version of _Black_
the action will use.
-The version of _Black_ the action will use can be configured via `version`. The action
-defaults to the latest release available on PyPI. Only versions available from PyPI are
-supported, so no commit SHAs or branch names.
+The version of _Black_ the action will use can be configured via `version`. This can be
+any
+[valid version specifier](https://packaging.python.org/en/latest/glossary/#term-Version-Specifier)
+or just the version number if you want an exact version. The action defaults to the
+latest release available on PyPI. Only versions available from PyPI are supported, so no
+commit SHAs or branch names.
You can also configure the arguments passed to _Black_ via `options` (defaults to
`'--check --diff'`) and `src` (default is `'.'`)
src: "./src"
version: "21.5b1"
```
+
+If you want to match versions covered by Black's
+[stability policy](labels/stability-policy), you can use the compatible release operator
+(`~=`):
+
+```yaml
+- uses: psf/black@stable
+ with:
+ options: "--check --verbose"
+ src: "./src"
+ version: "~= 22.0"
+```