release-mcp.yml

name: Release MCP Package

permissions:
  contents: write
  id-token: write

on:
  workflow_dispatch:
    inputs:
      bump_type:
        description: "Type of version bump to apply"
        required: true
        type: choice
        options:
          - patch
          - minor
          - major

concurrency:
  group: release-mcp
  cancel-in-progress: false

jobs:
  release:
    runs-on: ubuntu-latest

    steps:
      - name: Generate GitHub App token
        id: generate_token
        uses: actions/create-github-app-token@v1
        with:
          app-id: ${{ secrets.RELEASE_APP_ID }}
          private-key: ${{ secrets.RELEASE_APP_PRIVATE_KEY }}

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          ref: main
          fetch-depth: 0
          token: ${{ steps.generate_token.outputs.token }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: "24"
          registry-url: "https://registry.npmjs.org"

      - name: Calculate new version
        id: calculate_version
        run: |
          # Extract current version from package.json
          CURRENT_VERSION=$(node -p "require('./packages/mcp/package.json').version")

          if [ -z "$CURRENT_VERSION" ]; then
              echo "Error: Could not extract current version from package.json"
              exit 1
          fi

          echo "Current version: $CURRENT_VERSION"

          # Parse version components
          IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT_VERSION"

          # Apply bump based on input
          BUMP_TYPE="${{ inputs.bump_type }}"
          case "$BUMP_TYPE" in
            major)
              MAJOR=$((MAJOR + 1))
              MINOR=0
              PATCH=0
              ;;
            minor)
              MINOR=$((MINOR + 1))
              PATCH=0
              ;;
            patch)
              PATCH=$((PATCH + 1))
              ;;
            *)
              echo "Error: Invalid bump type: $BUMP_TYPE"
              exit 1
              ;;
          esac

          NEW_VERSION="$MAJOR.$MINOR.$PATCH"
          echo "New version: $NEW_VERSION"

          # Export to GITHUB_ENV for use in subsequent steps
          echo "VERSION=$NEW_VERSION" >> $GITHUB_ENV

          # Export to GITHUB_OUTPUT for use in other jobs
          echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT

      - name: Check if version already exists
        run: |
          if grep -q "## \[$VERSION\]" packages/mcp/CHANGELOG.md; then
              echo "Error: Version $VERSION already exists in CHANGELOG.md"
              exit 1
          fi
          if git tag | grep -q "^mcp-v$VERSION$"; then
              echo "Error: Tag mcp-v$VERSION already exists"
              exit 1
          fi

      - name: Update CHANGELOG.md
        run: |
          DATE=$(date +%Y-%m-%d)

          # Insert the new version header after the [Unreleased] line
          sed -i "/## \[Unreleased\]/a\\
          \\
          ## [$VERSION] - $DATE" packages/mcp/CHANGELOG.md

          echo "Updated CHANGELOG.md with version $VERSION"
          cat packages/mcp/CHANGELOG.md | head -n 20

      - name: Update package.json version
        run: |
          cd packages/mcp
          npm version $VERSION --no-git-tag-version
          echo "Updated package.json to version $VERSION"
          cat package.json | head -n 5

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

      - name: Commit changes
        run: |
          git add packages/mcp/CHANGELOG.md packages/mcp/package.json
          git commit -m "Release @sourcebot/mcp v$VERSION"

      - name: Push to temporary branch
        id: push_temp_branch
        env:
          GH_TOKEN: ${{ steps.generate_token.outputs.token }}
        run: |
          TEMP_BRANCH="release-mcp-v$VERSION"
          git push origin HEAD:refs/heads/$TEMP_BRANCH
          echo "Pushed commit to temporary branch: $TEMP_BRANCH"
          echo "temp_branch=$TEMP_BRANCH" >> $GITHUB_OUTPUT

      - name: Install dependencies
        run: yarn install --frozen-lockfile

      - name: Build MCP package
        run: yarn workspace @sourcebot/mcp build

      - name: Publish to npm
        run: |
          cd packages/mcp
          npm publish --provenance --access public

      - name: Fast-forward main to temporary branch
        env:
          GH_TOKEN: ${{ steps.generate_token.outputs.token }}
          TEMP_BRANCH: ${{ steps.push_temp_branch.outputs.temp_branch }}
        run: |
          # Fetch main branch
          git fetch origin main:main
          git checkout main

          # Check if fast-forward is possible
          if ! git merge-base --is-ancestor main "$TEMP_BRANCH"; then
            echo "❌ ERROR: Cannot fast-forward main branch to release commit"
            echo ""
            echo "This means new commits were pushed to main after the release process started."
            echo ""
            echo "Recent commits on main that caused the conflict:"
            git log --oneline $TEMP_BRANCH..main | head -5
            exit 1
          fi

          # Fast-forward main to release commit
          git merge --ff-only "$TEMP_BRANCH"

          echo "✓ Successfully fast-forwarded main to release commit"

      - name: Push main
        env:
          GH_TOKEN: ${{ steps.generate_token.outputs.token }}
        run: |
          git push origin main
          echo "Pushed main branch"

      - name: Delete temporary branch
        if: always()
        env:
          GH_TOKEN: ${{ steps.generate_token.outputs.token }}
          TEMP_BRANCH: ${{ steps.push_temp_branch.outputs.temp_branch }}
        run: |
          if [ -n "$TEMP_BRANCH" ]; then
            # Check if branch exists before attempting to delete
            if git ls-remote --heads origin "$TEMP_BRANCH" | grep -q "$TEMP_BRANCH"; then
              git push origin --delete "$TEMP_BRANCH"
              echo "✓ Deleted temporary branch: $TEMP_BRANCH"
            else
              echo "ℹ Temporary branch $TEMP_BRANCH does not exist (may have been already deleted)"
            fi
          fi