update-version.yml

name: Update Package Version

on:
  pull_request_target:
    types:
      - closed

jobs:
  update-version:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '18'

      - name: Install jq (JSON processor)
        run: sudo apt-get install -y jq

      - name: Detect version bump type
        id: detect_version
        env:
          PR_TITLE: ${{ github.event.pull_request.title }}
        run: |
          # Default to patch version bump
          VERSION_BUMP="patch"

          # Check the PR title to determine the version type
          if echo "$PR_TITLE" | grep -iq "BREAKING CHANGE"; then
            VERSION_BUMP="major"
          elif echo "$PR_TITLE" | grep -iq "^feat"; then
            VERSION_BUMP="minor"
          fi

          echo "Version bump type: $VERSION_BUMP"
          echo "version_bump=$VERSION_BUMP" >> $GITHUB_OUTPUT

      - name: Update package version
        env:
          VERSION_BUMP: ${{ steps.detect_version.outputs.version_bump }}
        run: |
          # Get the current version from package.json
          CURRENT_VERSION=$(jq -r '.version' package.json)
          
          # Split version into major, minor, patch
          IFS='.' read -r -a VERSION_PARTS <<< "$CURRENT_VERSION"
          MAJOR=${VERSION_PARTS[0]}
          MINOR=${VERSION_PARTS[1]}
          PATCH=${VERSION_PARTS[2]}

          # Determine the new version based on the bump type
          if [ "$VERSION_BUMP" = "major" ]; then
            MAJOR=$((MAJOR + 1))
            MINOR=0
            PATCH=0
          elif [ "$VERSION_BUMP" = "minor" ]; then
            MINOR=$((MINOR + 1))
            PATCH=0
          else
            PATCH=$((PATCH + 1))
          fi

          # Create new version string
          NEW_VERSION="$MAJOR.$MINOR.$PATCH"
          
          # Update the version in package.json
          jq --arg new_version "$NEW_VERSION" '.version = $new_version' package.json > tmp.json && mv tmp.json package.json

          # Commit the updated package.json if there are changes
          if [ -n "$(git status --porcelain)" ]; then
            git config user.name "GitHub Actions"
            git config user.email "actions@github.com"
            git add package.json
            git commit -m "Bump package version to $NEW_VERSION"
            git push origin master
          else
            echo "No changes to commit"
          fi