lint.yml

name: Lint

on:
  push:
    branches:
      - main
  pull_request:

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false

      - uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5.3.0
        with:
          python-version: "3.x"
          cache: "pip"
          cache-dependency-path: pyproject.toml

      - name: deps
        run: make dev SIGSTORE_EXTRA=lint

      - name: lint
        run: make lint

  check-readme:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false

      # NOTE: We intentionally check `--help` rendering against our minimum Python,
      # since it changes slightly between Python versions.
      - uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5.3.0
        with:
          python-version: "3.9"
          cache: "pip"
          cache-dependency-path: pyproject.toml

      - name: deps
        run: make dev

      - name: check-readme
        run: make check-readme

  licenses:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false

      # adapted from Warehouse's bin/licenses
      - run: |
          for fn in $(find . -type f -name "*.py"); do
            if [[ ! "$(head -5 $fn | grep "^ *\(#\|\*\|\/\/\) .* License\(d*\)")" ]]; then
              echo "${fn} is missing a license"
              exit 1
            fi
          done

  x509-testcases:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false

      # NOTE: We intentionally check test certificates against our minimum supported Python.
      - uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5.3.0
        with:
          python-version: "3.9"
          cache: "pip"
          cache-dependency-path: pyproject.toml

      - name: deps
        run: make dev

      - name: ensure testcase generation does not regress
        run: make gen-x509-testcases

  all-lints-pass:
    if: always()

    needs:
    - lint
    - check-readme
    - licenses
    - x509-testcases

    runs-on: ubuntu-latest

    steps:
      - name: check lint jobs
        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
        with:
          jobs: ${{ toJSON(needs) }}