release.yml

name: Release Bun Package

on:
  push:
    branches:
      - main
    paths:
      - package.json
      - CHANGELOG.md
  workflow_dispatch:

permissions:
  contents: write
  packages: write

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      # Step 1: Checkout repository
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          
      # Step 2: Setup Bun    
      - name: Setup Bun
        uses: oven-sh/setup-bun@v1
        with:
          version: latest

      # Step 3: Install Dependencies && Build Package    
      - name: Install Dependencies
        run: bun install --frozen-lockfile
      - name: Build Package
        run: bun run build
      
      # Step 4: Read version from package.json
      - name: Read package version
        id: version
        run: |
          VERSION=$(node -p "require('./package.json').version")
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "tag=$VERSION" >> $GITHUB_OUTPUT
          
          if [[ "$VERSION" == *"-"* ]]; then
            echo "is_prerelease=true" >> $GITHUB_OUTPUT
            echo "npm_tag=beta" >> $GITHUB_OUTPUT
            echo "Detected Pre-release version: $VERSION (tag: beta)"
          else
            echo "is_prerelease=false" >> $GITHUB_OUTPUT
            echo "npm_tag=latest" >> $GITHUB_OUTPUT
            echo "Detected Release version: $VERSION (tag: latest)"
          fi

      # Step 5: Ensure tag doesn't already exist  
      - name: Check if tag exist
        run: |
          if git rev-parse "${{ steps.version.outputs.tag }}" >/dev/null 2>&1; then
            echo "❌ Tag already exists"
            exit 1
          fi

      # Step 6: Extract release notes from CHANGELOG.md
      - name: Generate release notes from CHANGELOG
        id: notes
        run: |
          VERSION="v${{ steps.version.outputs.version }}"

          if ! grep -q "## $VERSION" CHANGELOG.md; then
            echo "❌ No changelog entry found for $VERSION"
            exit 1
          fi

          awk -v ver="$VERSION" '
            $0 == "## " ver {flag=1; next}
            /^## v/ && flag {exit}
            flag
          ' CHANGELOG.md > release.md

          echo "📄 Release notes:"
          cat release.md    

      # Step 7: Publish package
      - name: Publish Bun package
        run: bun publish --access public --tag ${{ steps.version.outputs.npm_tag }}
        env:
          NPM_AUTH_TOKEN: ${{ secrets.TUANNC2_SECRET_KEY }}

      # Step 8: Create git tag
      - name: Create git tag
        run: |
          git tag ${{ steps.version.outputs.tag }}
          git push origin ${{ steps.version.outputs.tag }}

      # Step 9: Create GitHub Release (from CHANGELOG)
      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.version.outputs.tag }}
          name: Release ${{ steps.version.outputs.tag }}
          body_path: release.md
          prerelease: ${{ steps.version.outputs.is_prerelease }}