actionlint.yml

name: ':octocat: Lint Workflows'

on:
  pull_request:
    paths:
      - '.github/workflows/**'

jobs:
  actionlint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0  # Fetch all history for git diff
      
      - name: Install actionlint
        run: |
          bash <(curl -sSfL https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
          sudo mv actionlint /usr/local/bin/
      
      - name: Run actionlint on changed files
        run: |
          # Get list of changed workflow files
          CHANGED_FILES=$(git diff --name-only --diff-filter=d origin/${{ github.base_ref }}...HEAD -- '.github/workflows/*.yml' '.github/workflows/*.yaml')
          
          if [ -z "$CHANGED_FILES" ]; then
            echo "No workflow files changed."
            exit 0
          fi
          
          echo "Changed workflow files:"
          echo "$CHANGED_FILES"
          echo ""
          
          # Run actionlint on each changed file
          echo "$CHANGED_FILES" | xargs actionlint