publish.yml

name: Publish

on:
  push:
    tags:
      - "v*"

jobs:
  publish:
    runs-on: ubuntu-latest
    permissions:
      contents: write # needed for GitHub Release creation
    steps:
      - uses: actions/checkout@v6

      - uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      - name: Install dependencies
        run: bun install

      - name: Type check
        run: bunx tsc --noEmit

      - name: Test
        run: bun test

      - name: Verify version matches tag
        run: |
          TAG=${GITHUB_REF#refs/tags/v}
          PKG=$(node -p "require('./package.json').version")
          if [ "$TAG" != "$PKG" ]; then
            echo "Tag v$TAG does not match package.json version $PKG"
            exit 1
          fi
          echo "Version verified: $PKG"

      - uses: actions/setup-node@v6
        with:
          node-version: 22
          registry-url: https://registry.npmjs.org

      - name: Publish to npm
        run: npm publish
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      - name: Extract changelog for this version
        run: |
          VERSION=${GITHUB_REF#refs/tags/v}
          awk "/^## \[${VERSION}\]/{found=1; next} found && /^## \[/{exit} found{print}" CHANGELOG.md > release_notes.md
          if [ ! -s release_notes.md ]; then
            echo "No changelog entry found for v${VERSION}." > release_notes.md
          fi

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v3
        with:
          body_path: release_notes.md