GitHub Action that installs Python commands using pipx.

Everything that pip(x) downloads is cached.

This action is a simpler (50-ish lines) alternative to threeal/pipx-install-action, with a slightly different caching behaviour:

• pipx-install-action caches the installed pipx environments, but lets the caches go stale—one needs to explicitly specify a package version to avoid using a stale cache

• gh-pipx (this one) caches only pip's cache, so the latest versions requested are installed; the cache only speeds up downloads of pip metadata and wheels

jobs:
  somejob:
    steps:
      # …
      - uses: liskin/gh-pipx@v1
        with:
          packages: >-
            ruff
            'isort[colors]'
            'mypy >= 1.0'
      # …

• packages
  • Space-separated list of package specifications to install
  • (Required)
• cache-date-format
  • Date format string used as cache key (new cache will be created whenever the output date changes)
  • (Default: %Y-%m)