name: NPM Publish

on:
  create:
    tags:

jobs:
  publish:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        deno: ["v1.x"]
    steps:
      - uses: actions/checkout@v2
      - uses: denoland/setup-deno@main
        with:
          deno-version: ${{ matrix.deno }}
      # Taken from: https://github.com/denoland/dnt#github-actions---npm-publish-on-tag
      - name: Get tag version
        if: startsWith(github.ref, 'refs/tags/')
        id: get_tag_version
        run: echo ::set-output name=TAG_VERSION::${GITHUB_REF/refs\/tags\//}
      - uses: actions/setup-node@v2
        with:
          node-version: '16.x'
          registry-url: 'https://registry.npmjs.org'
      - name: npm build
        run: deno run -A ./dnt.ts ${{steps.get_tag_version.outputs.TAG_VERSION}}
      - name: npm publish
        if: startsWith(github.ref, 'refs/tags/')
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: cd npm && npm publish