.github/workflows/release.yml

name: Create Release

on:
  push:
    tags:
      - 'v*.*.*'
      - 'KorAP-Tokenizer-*'

jobs:
  release:
    name: Create GitHub release from Changelog
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v5

      - name: Determine version from tag
        id: version
        run: |
          TAG="${GITHUB_REF_NAME}"
          VERSION="${TAG#v}"
          VERSION="${VERSION#KorAP-Tokenizer-}"
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"

      - name: Extract release notes from CHANGELOG.md
        id: changelog
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          ESCAPED_VERSION=$(printf '%s' "$VERSION" | sed 's/[.[\*^$()+?{|]/\\&/g')
          awk -v ver="$ESCAPED_VERSION" '
            BEGIN { found = 0 }
            /^## / {
              if (found) exit
              if ($0 ~ "^## " ver "([^0-9.]|$)") { found = 1 }
              next
            }
            found { print }
          ' CHANGELOG.md | sed -e '/./,$!d' -e ':a' -e '/^\n*$/{$d;N;ba' -e '}' > release_notes.md

          if [ ! -s release_notes.md ]; then
            echo "::error::No CHANGELOG.md section found for version $VERSION (tag $GITHUB_REF_NAME)"
            exit 1
          fi

          echo "Release notes for $VERSION:"
          cat release_notes.md

      - name: Create GitHub release
        uses: softprops/action-gh-release@v2
        with:
          name: ${{ github.ref_name }}
          body_path: release_notes.md
          draft: false
          prerelease: false