Add CITATION.cff file (#3723)

[etc/vim.git] / docs / integrations / github_actions.md

diff --git a/docs/integrations/github_actions.md b/docs/integrations/github_actions.md
index 9e8cf436453c93e82f29636a59c568163d9b6e4b..56b2cdd05868121b1fd75a68f7040b4d35f45ba0 100644 (file)
--- a/docs/integrations/github_actions.md
+++ b/docs/integrations/github_actions.md
@@ -3,6 +3,14 @@
 You can use _Black_ within a GitHub Actions workflow without setting your own Python
 environment. Great for enforcing that your code matches the _Black_ code style.
 
+## Compatibility
+
+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 the `colorama` extra so the `--color` flag
+should work fine.
+
 ## Usage
 
 Create a file named `.github/workflows/black.yml` inside your repository with:
@@ -16,20 +24,49 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v3
       - uses: psf/black@stable
 ```
 
 We recommend the use of the `@stable` tag, but per version tags also exist if you prefer
-that.
+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`. 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.
+
+If you want to include Jupyter Notebooks, _Black_ must be installed with the `jupyter`
+extra. Installing the extra and including Jupyter Notebook files can be configured via
+`jupyter` (default is `false`).
+
+You can also configure the arguments passed to _Black_ via `options` (defaults to
+`'--check --diff'`) and `src` (default is `'.'`). Please note that the
+[`--check` flag](labels/exit-code) is required so that the workflow fails if _Black_
+finds files that need to be formatted.
+
+Here's an example configuration:
+
+```yaml
+- uses: psf/black@stable
+  with:
+    options: "--check --verbose"
+    src: "./src"
+    jupyter: true
+    version: "21.5b1"
+```
 
-You may use `options` (Default is `'--check --diff'`) and `src` (Default is `'.'`) as
-follows:
+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"
 ```