update_pre_commit_hooks.yml

name: Update pre-commit hooks

on:
  schedule:
    - cron: '0 0 * * 0' # Runs every Sunday at midnight UTC
  push:
    branches:
      - main # Runs when changes are pushed to the main branch

jobs:
  update-pre-commit-hooks:
    runs-on: ubuntu-latest

    steps:
      # Checkout repository
      - name: Checkout repository
        uses: actions/checkout@v4

      # Install pre-commit
      - name: Install pre-commit
        run: |
          python -m pip install --upgrade pip
          pip install pre-commit

      - name: Run pre-commit autoupdate
        # Run pre-commit autoupdate to update the hook versions
        run: pre-commit autoupdate

      # Set git user identity to avoid "empty ident name" error
      - name: Set Git user identity
        run: |
          git config --global user.email "actions@github.com"
          git config --global user.name "GitHub Actions"

      - name: Check for changes and push updates
        # Check for changes and push updates only if there are changes
        run: |
          # Check if there are any changes to commit
          git diff --exit-code
          if [ $? -eq 0 ]; then
            echo "No changes detected, skipping commit."
            exit 0  # No changes, so skip the commit step
          fi

          # If changes are detected, continue with committing and pushing
          BRANCH_NAME="pre-commit-updates"

          git fetch origin
          if git rev-parse --verify origin/$BRANCH_NAME; then
            echo "Branch $BRANCH_NAME exists, switching to it."
            git checkout $BRANCH_NAME
          else
            echo "Branch $BRANCH_NAME does not exist, creating it."
            git checkout -b $BRANCH_NAME
          fi

          # Commit and push changes
          git add .pre-commit-config.yaml
          git commit -m 'Update pre-commit hook versions'
          git push -u origin $BRANCH_NAME