manual-release.yml

name: Manual Release

on:
  workflow_dispatch:
    inputs:
      version_bump:
        description: 'Version bump type'
        required: true
        type: choice
        options:
          - patch
          - minor
          - major

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

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

      - name: Validate changelog has unreleased content
        run: |
          # Extract content between [Unreleased] and next ## [
          UNRELEASED_CONTENT=$(sed -n '/^## \[Unreleased\]/,/^## \[/p' CHANGELOG.md | sed '1d;$d' | sed '/^$/d')

          if [ -z "$UNRELEASED_CONTENT" ]; then
            echo "Error: No content in [Unreleased] section. Nothing to release."
            exit 1
          fi

          echo "Found unreleased content:"
          echo "$UNRELEASED_CONTENT"

      - name: Calculate new version
        id: version
        env:
          VERSION_BUMP: ${{ inputs.version_bump }}
        run: |
          # Get current version from the latest git tag
          CURRENT_VERSION=$(git describe --tags --abbrev=0 2>/dev/null | sed 's/^v//' || echo "0.4.0")

          IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT_VERSION"

          case "$VERSION_BUMP" in
            major)
              NEW_VERSION="$((MAJOR + 1)).0.0"
              ;;
            minor)
              NEW_VERSION="$MAJOR.$((MINOR + 1)).0"
              ;;
            patch)
              NEW_VERSION="$MAJOR.$MINOR.$((PATCH + 1))"
              ;;
          esac

          echo "Current version: $CURRENT_VERSION"
          echo "New version: $NEW_VERSION"
          echo "current=$CURRENT_VERSION" >> $GITHUB_OUTPUT
          echo "new=$NEW_VERSION" >> $GITHUB_OUTPUT

      - name: Extract release notes from changelog
        run: |
          # Extract content between [Unreleased] and next ## [ heading
          # Remove the first line ([Unreleased]) and last line (next version header)
          RELEASE_NOTES=$(sed -n '/^## \[Unreleased\]/,/^## \[/p' CHANGELOG.md | sed '1d;$d')

          # Write to file for use in release (handles multiline properly)
          echo "$RELEASE_NOTES" > release_notes.md

          echo "Release notes extracted:"
          cat release_notes.md

      - name: Update CHANGELOG.md
        env:
          NEW_VERSION: ${{ steps.version.outputs.new }}
          CURRENT_VERSION: ${{ steps.version.outputs.current }}
        run: |
          TODAY=$(date +%Y-%m-%d)

          # Replace [Unreleased] with new version, and add new [Unreleased] section
          sed -i "s/^## \[Unreleased\]$/## [Unreleased]\n\n## [$NEW_VERSION] - $TODAY/" CHANGELOG.md

          # Update the comparison links at the bottom
          # Change: [Unreleased]: .../compare/vX.Y.Z...HEAD
          # To: [Unreleased]: .../compare/vNEW...HEAD
          sed -i "s|\[Unreleased\]: \(.*\)/compare/v${CURRENT_VERSION}\.\.\.HEAD|[Unreleased]: \1/compare/v${NEW_VERSION}...HEAD|" CHANGELOG.md

          # Add new version link after [Unreleased] link
          sed -i "/^\[Unreleased\]:.*HEAD$/a [$NEW_VERSION]: https://github.com/itk-dev/itkdev-claude-plugins/compare/v${CURRENT_VERSION}...v${NEW_VERSION}" CHANGELOG.md

          echo "Updated CHANGELOG.md:"
          head -30 CHANGELOG.md
          echo "..."
          tail -10 CHANGELOG.md

      - name: Commit changes
        env:
          NEW_VERSION: ${{ steps.version.outputs.new }}
        run: |
          git add CHANGELOG.md
          git commit -m "chore: prepare release v${NEW_VERSION}"

      - name: Create and push tag
        env:
          NEW_VERSION: ${{ steps.version.outputs.new }}
        run: |
          TAG="v${NEW_VERSION}"
          git tag -a "$TAG" -m "Release $TAG"
          git push origin main
          git push origin "$TAG"

      - name: Create GitHub Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          NEW_VERSION: ${{ steps.version.outputs.new }}
          CURRENT_VERSION: ${{ steps.version.outputs.current }}
        run: |
          TAG="v${NEW_VERSION}"

          # Build release notes with header and footer
          {
            echo "## What's Changed"
            echo ""
            cat release_notes.md
            echo ""
            echo "## Full Changelog"
            echo "https://github.com/itk-dev/itkdev-claude-plugins/compare/v${CURRENT_VERSION}...v${NEW_VERSION}"
          } > full_release_notes.md

          gh release create "$TAG" \
            --title "Release $TAG" \
            --notes-file full_release_notes.md

          echo "Created release: $TAG"