name: CD

on: push

env:
  CI: true
jobs:
  publish-npm:
    runs-on: ubuntu-18.04
    steps:
    - uses: actions/checkout@v2.1.0
    - name: Prepare for publication to npm
      uses: actions/setup-node@v1
      with:
        node-version: '12.x'
        registry-url: 'https://registry.npmjs.org'
    - name: Determine npm tag
      # Remove non-alphanumeric characters
      # See https://help.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-environment-variable
      run: echo "::set-env name=TAG_SLUG::$(echo ${GITHUB_REF#refs/heads/} | tr -cd '[:alnum:]-')"
    - name: Prepare prerelease version
      run: |
        git config user.name $GITHUB_ACTOR
        git config user.email gh-actions-${GITHUB_ACTOR}@github.com
        # Make sure the prerelease is tagged with the branch name, and that they are sorted by build:
        npm version prerelease --preid=$TAG_SLUG-$GITHUB_RUN_ID-$GITHUB_RUN_NUMBER
    - run: npm ci
    - name: Publish an npm tag for this branch
      run: npm publish --access public --tag "$TAG_SLUG"
      env:
        NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
    - run: |
        echo "Package published. To install, run:"
        echo ""
        echo "    npm install @solid/lit-pod@$TAG_SLUG"