create-connector-release.yaml

name: Automated Release for ndc-nodejs-lambda

on:
  workflow_dispatch:
    inputs:
      version:
        description: "Version to release (e.g., v1.20.0)"
        required: true
        type: string

jobs:
  create-release-pr:
    name: Create Release PR
    runs-on: ubuntu-latest
    timeout-minutes: 10
    permissions:
      contents: write
      pull-requests: write

    steps:
      - name: Validate version format
        run: |
          VERSION="${{ github.event.inputs.version }}"
          if [[ ! "$VERSION" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            echo "::error::Version must be in format vX.Y.Z (e.g., v1.20.0)"
            exit 1
          fi

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Check tag doesn't already exist
        run: |
          if git rev-parse "${{ github.event.inputs.version }}" >/dev/null 2>&1; then
            echo "::error::Tag ${{ github.event.inputs.version }} already exists"
            exit 1
          fi

      - name: Check release branch doesn't exist
        run: |
          BRANCH_NAME="release/${{ github.event.inputs.version }}"
          if git ls-remote --exit-code --heads origin "$BRANCH_NAME" >/dev/null 2>&1; then
            echo "::error::Branch $BRANCH_NAME already exists. Delete it first or use a different version."
            exit 1
          fi

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: .nvmrc
          registry-url: https://registry.npmjs.org

      - name: Configure Git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Get previous tag
        id: get-previous-tag
        run: |
          PREVIOUS_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
          echo "previous_tag=$PREVIOUS_TAG" >> $GITHUB_OUTPUT
          echo "Previous tag: ${PREVIOUS_TAG:-'(none)'}"

      - name: Create release branch
        run: |
          BRANCH_NAME="release/${{ github.event.inputs.version }}"
          git checkout -b "$BRANCH_NAME"
          echo "branch_name=$BRANCH_NAME" >> $GITHUB_ENV

      - name: Generate changelog entry
        run: |
          VERSION="${{ github.event.inputs.version }}"
          VERSION_NO_V="${VERSION#v}"
          PREVIOUS_TAG="${{ steps.get-previous-tag.outputs.previous_tag }}"
          DATE=$(date +%Y-%m-%d)

          # Generate commit log since last tag
          if [ -n "$PREVIOUS_TAG" ]; then
            echo "Generating changelog from ${PREVIOUS_TAG} to HEAD"
            COMMITS=$(git log "${PREVIOUS_TAG}..HEAD" --pretty=format:"- %s" --no-merges | grep -v "^- Release v" || true)
          else
            echo "No previous tag found, generating full history"
            COMMITS=$(git log --pretty=format:"- %s" --no-merges | grep -v "^- Release v" || true)
          fi

          # Handle empty commits
          if [ -z "$COMMITS" ]; then
            COMMITS="- No notable changes"
          fi

          # Create changelog entry
          CHANGELOG_ENTRY="## [${VERSION_NO_V}] - ${DATE}

          ${COMMITS}"

          # Create or update CHANGELOG.md
          if [ -f CHANGELOG.md ]; then
            # Read existing content, skip header line
            EXISTING_CONTENT=$(tail -n +2 CHANGELOG.md)

            # Write new changelog
            {
              head -1 CHANGELOG.md
              echo ""
              echo "$CHANGELOG_ENTRY"
              echo ""
              echo "$EXISTING_CONTENT"
            } > CHANGELOG.tmp
            mv CHANGELOG.tmp CHANGELOG.md
          else
            {
              echo "# Changelog"
              echo ""
              echo "$CHANGELOG_ENTRY"
            } > CHANGELOG.md
          fi

          echo "Generated changelog entry:"
          echo "$CHANGELOG_ENTRY"

      - name: Update package.json version
        working-directory: ./ndc-lambda-sdk
        run: |
          VERSION="${{ github.event.inputs.version }}"
          VERSION_NO_V="${VERSION#v}"

          # Update package.json version
          npm version "$VERSION_NO_V" --no-git-tag-version

          # Regenerate package-lock.json to ensure consistency
          npm install --package-lock-only

          echo "Updated package.json to version $VERSION_NO_V"

      - name: Commit and push changes
        run: |
          git add CHANGELOG.md ndc-lambda-sdk/package.json ndc-lambda-sdk/package-lock.json
          git commit -m "Release ${{ github.event.inputs.version }}"
          git push origin "${{ env.branch_name }}"

      - name: Generate PR body
        id: pr-body
        run: |
          VERSION="${{ github.event.inputs.version }}"
          VERSION_NO_V="${VERSION#v}"

          # Extract the changelog section for this version
          RELEASE_NOTES=$(awk "/## \[${VERSION_NO_V}\]/{flag=1; next} /## \[/{flag=0} flag" CHANGELOG.md)

          cat > pr-body.md << 'EOF'
          ## Release ${{ github.event.inputs.version }}

          This PR prepares the release for version ${{ github.event.inputs.version }}.

          ### Changes
          EOF

          echo "$RELEASE_NOTES" >> pr-body.md

          cat >> pr-body.md << 'EOF'

          ### Pre-merge Checklist
          - [ ] Review changelog entries for accuracy
          - [ ] Verify version in `ndc-lambda-sdk/package.json` is correct
          - [ ] Ensure all CI checks pass

          ### Post-merge Instructions
          After merging, create and push the tag to trigger the release workflow:

          ```bash
          git checkout main
          git pull origin main
          git tag ${{ github.event.inputs.version }}
          git push origin ${{ github.event.inputs.version }}
          ```

          > **Note:** The release workflow will automatically publish to npm and create the GitHub release.
          EOF

      - name: Create Pull Request
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh pr create \
            --base main \
            --head "${{ env.branch_name }}" \
            --title "Release ${{ github.event.inputs.version }}" \
            --body-file pr-body.md \
            --label "release"