release.yml

name: release

on:
  push:
    branches: [main]
    paths:
      - 'package.json'
      - 'CHANGELOG.md'

permissions:
  contents: write

jobs:
  tag-and-release:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Extract version from package.json
        id: version
        run: |
          VERSION=$(node -p "require('./package.json').version")
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Check if tag already exists
        id: check
        run: |
          if git rev-parse "v${{ steps.version.outputs.version }}" >/dev/null 2>&1; then
            echo "exists=true" >> $GITHUB_OUTPUT
          else
            echo "exists=false" >> $GITHUB_OUTPUT
          fi

      - name: Extract release notes from CHANGELOG.md
        if: steps.check.outputs.exists == 'false'
        id: notes
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          awk -v ver="## $VERSION" '
            $0 == ver {found=1; next}
            found && /^## / {exit}
            found {print}
          ' CHANGELOG.md > release_notes.txt
          {
            echo 'notes<<EOF'
            cat release_notes.txt
            echo EOF
          } >> $GITHUB_OUTPUT

      - name: Create tag and GitHub release
        if: steps.check.outputs.exists == 'false'
        uses: softprops/action-gh-release@v2
        with:
          tag_name: v${{ steps.version.outputs.version }}
          name: v${{ steps.version.outputs.version }}
          body: ${{ steps.notes.outputs.notes }}
          draft: false
          prerelease: false