release-notes.yml

name: Release Notes Generator

on:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag to generate release notes for'
        required: true
        type: string

jobs:
  generate-release-notes:
    name: Generate Release Notes
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get version info
        id: version
        run: |
          if [ "${{ github.event_name }}" == "release" ]; then
            TAG="${{ github.event.release.tag_name }}"
          else
            TAG="${{ github.event.inputs.tag }}"
          fi
          
          VERSION=${TAG#v}
          echo "tag=$TAG" >> $GITHUB_OUTPUT
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Extract changelog for version
        id: changelog
        run: |
          # Extract the section for this version from CHANGELOG.md
          VERSION="${{ steps.version.outputs.version }}"
          
          awk "/## \[$VERSION\]/,/## \[/" CHANGELOG.md | head -n -1 > release_notes.md
          
          if [ ! -s release_notes.md ]; then
            echo "## What's Changed" > release_notes.md
            echo "" >> release_notes.md
            echo "See [CHANGELOG.md](https://github.com/${{ github.repository }}/blob/main/CHANGELOG.md) for details." >> release_notes.md
          fi

      - name: Generate contributor list
        run: |
          # Get previous tag
          PREV_TAG=$(git describe --tags --abbrev=0 ${{ steps.version.outputs.tag }}^ 2>/dev/null || git rev-list --max-parents=0 HEAD)
          
          echo "" >> release_notes.md
          echo "## 👥 Contributors" >> release_notes.md
          echo "" >> release_notes.md
          
          # Get list of contributors
          git log $PREV_TAG..${{ steps.version.outputs.tag }} --format='%aN' | sort -u | while read name; do
            echo "- @$name" >> release_notes.md
          done

      - name: Add installation instructions
        run: |
          echo "" >> release_notes.md
          echo "## 📦 Installation" >> release_notes.md
          echo "" >> release_notes.md
          echo '```yaml' >> release_notes.md
          echo 'dependencies:' >> release_notes.md
          echo "  docx_viewer: ^${{ steps.version.outputs.version }}" >> release_notes.md
          echo '```' >> release_notes.md
          echo "" >> release_notes.md
          echo "## 📚 Documentation" >> release_notes.md
          echo "" >> release_notes.md
          echo "- [pub.dev](https://pub.dev/packages/docx_viewer)" >> release_notes.md
          echo "- [API Docs](https://pub.dev/documentation/docx_viewer/latest/)" >> release_notes.md
          echo "- [README](https://github.com/${{ github.repository }}/blob/main/README.md)" >> release_notes.md

      - name: Update release notes
        if: github.event_name == 'release'
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const releaseNotes = fs.readFileSync('release_notes.md', 'utf8');
            
            await github.rest.repos.updateRelease({
              owner: context.repo.owner,
              repo: context.repo.repo,
              release_id: context.payload.release.id,
              body: releaseNotes
            });

      - name: Upload release notes artifact
        uses: actions/upload-artifact@v4
        with:
          name: release-notes-${{ steps.version.outputs.version }}
          path: release_notes.md
          retention-days: 90