publish.yml

name: Publish to npm

on:
  release:
    types: [published]

permissions:
  id-token: write
  contents: read

jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: '24'
          registry-url: 'https://registry.npmjs.org'
          cache: npm

      - name: Install dependencies
        run: npm ci

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

      - name: Test
        run: npm test

      - name: Build
        run: npm run build

      - name: Determine dist-tag
        id: disttag
        run: |
          VERSION=$(node -p "require('./package.json').version")
          if [[ "$VERSION" == *-* ]]; then
            echo "tag=next" >> "$GITHUB_OUTPUT"
            echo "Prerelease detected ($VERSION) → publishing under 'next'"
          else
            echo "tag=latest" >> "$GITHUB_OUTPUT"
            echo "Stable release ($VERSION) → publishing under 'latest'"
          fi

      - name: Publish
        run: npm publish --tag ${{ steps.disttag.outputs.tag }}