pre-commit.yml

name: pre-commit
on: [push, pull_request]
jobs:
  pre-commit:
    runs-on: ubuntu-latest
    name: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-python@v4.5.0
        with:
          python-version: "3.9"
      - run: |
          pip install --constraint=.github/workflows/constraints.txt pip
          pip install --constraint=.github/workflows/constraints.txt pre-commit
      - name: Compute cache key prefix
        if: matrix.os != 'windows-latest'
        id: cache_key_prefix
        shell: python
        run: |
          import hashlib
          import sys

          python = "py{}.{}".format(*sys.version_info[:2])
          payload = sys.version.encode() + sys.executable.encode()
          digest = hashlib.sha256(payload).hexdigest()
          result = "${{ runner.os }}-{}-{}-pre-commit".format(python, digest)

          print("::set-output name=result::{}".format(result))
      - uses: actions/cache@v3
        if: matrix.os != 'windows-latest'
        with:
          path: ~/.cache/pre-commit
          key: ${{ steps.cache_key_prefix.outputs.result }}-${{ hashFiles('.pre-commit-config.yaml') }}
          restore-keys: |
            ${{ steps.cache_key_prefix.outputs.result }}-
      - run: pre-commit run --all-files --show-diff-on-failure --color=always