check-vale-update.yml

name: Version Bump if Vale Updated 

on:
  schedule:
    - cron: '0 0 * * *'  # This schedule runs every day at midnight UTC
  workflow_dispatch:

jobs:
  update-version:
    runs-on: ubuntu-latest
   
    steps:
    - name: Checkout code
      uses: actions/checkout@v3

    - name: Check Vale's last version
      id: check-last-version
      env:
        GH_TOKEN: ${{ github.token }}
      run: |
        VALE_LAST_VERSION=$(gh release list -L 1 -R errata-ai/vale | cut -f 1 | tr -d "v")
        VALE_PYTHON_LAST_VERSION=$(cat pyproject.toml | grep "^version =" | cut -d "\"" -f 2 | sed "s/\.[^.]*$//" | cut -d "." -f -3)
        echo "Current Vale version        : $VALE_LAST_VERSION" 
        echo "Current Python Vale version : $VALE_PYTHON_LAST_VERSION" 

        if [[ "$VALE_LAST_VERSION" == "$VALE_PYTHON_LAST_VERSION" ]]; then 
          echo "Same versions 🎉"
        elif [ -n "$VALE_LAST_VERSION" ]; then # not-empty
          echo "Versions differ, updating."
          echo "VALE_LAST_VERSION=$VALE_LAST_VERSION" >> $GITHUB_OUTPUT
          echo "VALE_PYTHON_LAST_VERSION=$VALE_PYTHON_LAST_VERSION" >> $GITHUB_OUTPUT
        fi
      
    - name: Version bump 
      if: steps.check-last-version.outputs.VALE_LAST_VERSION
      env:
        VALE_LAST_VERSION: ${{steps.check-last-version.outputs.VALE_LAST_VERSION}}
        VALE_PYTHON_LAST_VERSION: ${{steps.check-last-version.outputs.VALE_PYTHON_LAST_VERSION}}
      run: |
        # Commit version bump (change pyproject.yaml, CHANGELOG and README.md):
        echo "Version bump to $VALE_LAST_VERSION:"
        echo "🗒️ Adding a changelog entry"
        sed -i -e "s/# Changelog/# Changelog\n\n## ${VALE_LAST_VERSION}.0 \($(date -Idate)\)\n\n- Using Vale v${VALE_LAST_VERSION}/" CHANGELOG.md
        echo "✍️  Updating version"
        sed -i -e "s/vale==${VALE_PYTHON_LAST_VERSION}/vale==${VALE_LAST_VERSION}/" README.md 
        sed -i -e "s/version = \"${VALE_PYTHON_LAST_VERSION}.*\"/version = \"${VALE_LAST_VERSION}.0\"/" pyproject.toml
        echo "Done!"
        git diff

    - name: Create Pull Request with Version Bump
      if: steps.check-last-version.outputs.VALE_LAST_VERSION
      env:
        VALE_LAST_VERSION: ${{steps.check-last-version.outputs.VALE_LAST_VERSION}}
      uses: peter-evans/create-pull-request@v5
      with:
        commit-message: Version Bump ${{steps.check-last-version.outputs.VALE_LAST_VERSION}} 
        title: "[BOT] Update Vale to v${{steps.check-last-version.outputs.VALE_LAST_VERSION}}"