release.yml

name: Release

on:
  push:
    branches: [main]
  workflow_dispatch:
    inputs:
      version:
        description: 'Version bump (major, minor, patch)'
        default: 'patch'
        type: choice
        options:
          - major
          - minor
          - patch

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Fetch all tags
        run: git fetch --tags --force origin

      - name: Determine version bump
        id: version
        run: |
          if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
            BUMP="${{ github.event.inputs.version }}"
          else
            # Get commits on main since last tag
            LAST_TAG=$(git describe --tags --abbrev=0 origin/main 2>/dev/null || echo "none")
            
            # Get commit messages
            if [ "$LAST_TAG" = "none" ]; then
              COMMITS=$(git log --format=%s origin/main)
            else
              COMMITS=$(git log --format=%s $LAST_TAG..origin/main 2>/dev/null || git log --format=%s origin/main)
            fi
            
            # Count features and fixes
            FEAT_COUNT=$(echo "$COMMITS" | grep -c "^feat:" || true)
            FIX_COUNT=$(echo "$COMMITS" | grep -c "^fix:" || true)
            
            # Remove any whitespace
            FEAT_COUNT=$(echo "$FEAT_COUNT" | tr -d ' ')
            FIX_COUNT=$(echo "$FIX_COUNT" | tr -d ' ')
            
            echo "LAST_TAG=$LAST_TAG FEAT_COUNT=$FEAT_COUNT FIX_COUNT=$FIX_COUNT"
            
            if [ "$FEAT_COUNT" = "" ] || [ "$FEAT_COUNT" -eq 0 ]; then
              if [ "$FIX_COUNT" = "" ] || [ "$FIX_COUNT" -eq 0 ]; then
                BUMP="none"
              else
                BUMP="patch"
              fi
            else
              BUMP="minor"
            fi
          fi
          echo "bump=$BUMP" >> $GITHUB_OUTPUT

      - name: Bump version and tag
        id: bump
        if: steps.version.outputs.bump != 'none'
        run: |
          LAST_TAG=$(git describe --tags --abbrev=0 origin/main 2>/dev/null || echo "")
          if [ -z "$LAST_TAG" ]; then
            MAJOR=1; MINOR=0; PATCH=0
          else
            VERSION=$(echo $LAST_TAG | sed 's/v//')
            IFS='.' read -r MAJOR MINOR PATCH <<< "$VERSION"
            MAJOR=${MAJOR:-0}; MINOR=${MINOR:-0}; PATCH=${PATCH:-0}
          fi
          
          case "${{ steps.version.outputs.bump }}" in
            major) MAJOR=$((MAJOR + 1)); MINOR=0; PATCH=0 ;;
            minor) MINOR=$((MINOR + 1)); PATCH=0 ;;
            patch) PATCH=$((PATCH + 1)) ;;
          esac
          
          NEW_TAG="v${MAJOR}.${MINOR}.${PATCH}"
          echo "NEW_TAG=$NEW_TAG" >> $GITHUB_OUTPUT
          echo "Creating tag: $NEW_TAG"
          git tag -f $NEW_TAG
          git push -f origin $NEW_TAG

      - name: Generate release notes
        if: steps.version.outputs.bump != 'none'
        id: release_notes
        run: |
          LAST_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null | tr -d "\n")
          
          echo "## What's Changed" > release_notes.md
          echo "" >> release_notes.md
          
          FEATS=$(git log --pretty=format:"%s" $LAST_TAG..HEAD | grep "^feat:" | sed 's/^feat: /- /' || true)
          if [ -n "$FEATS" ]; then
            echo "### ✨ Features" >> release_notes.md
            echo "$FEATS" >> release_notes.md
            echo "" >> release_notes.md
          fi
          
          FIXES=$(git log --pretty=format:"%s" $LAST_TAG..HEAD | grep "^fix:" | sed 's/^fix: /- /' || true)
          if [ -n "$FIXES" ]; then
            echo "### 🐛 Bug Fixes" >> release_notes.md
            echo "$FIXES" >> release_notes.md
            echo "" >> release_notes.md
          fi
          
          DOCS=$(git log --pretty=format:"%s" $LAST_TAG..HEAD | grep "^docs:" | sed 's/^docs: /- /' || true)
          if [ -n "$DOCS" ]; then
            echo "### 📝 Documentation" >> release_notes.md
            echo "$DOCS" >> release_notes.md
            echo "" >> release_notes.md
          fi
          
          echo "**Full Changelog**: https://github.com/${{ github.repository }}/compare/$LAST_TAG...${{ steps.bump.outputs.NEW_TAG }}" >> release_notes.md

      - name: Create Release
        if: steps.version.outputs.bump != 'none'
        run: |
          TAG="${{ steps.bump.outputs.NEW_TAG }}"
          echo "Creating release for tag: $TAG"
          
          # Check if release already exists
          if gh release view "$TAG" --repo "${{ github.repository }}" >/dev/null 2>&1; then
            echo "Release $TAG already exists, updating..."
            gh release edit "$TAG" --notes-file release_notes.md --draft=false
          else
            # Create release using gh cli
            gh release create "$TAG" --title "Release $TAG" --notes-file release_notes.md --draft=false
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: No release needed
        if: steps.version.outputs.bump == 'none'
        run: echo "No breaking changes or new features - no release needed"