name: Publish Carbon Documentation
on:
  push:
    branches:
      - trunk

jobs:
  build:
    if: github.repository == 'carbon-language/carbon-lang'
    runs-on: [ubuntu-latest]
    steps:
      - uses: actions/checkout@v2
      - uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
        with:
          version: '285.0.0'
          project_id: ${{ secrets.GCP_PROJECT_ID }}
          service_account_email: ${{ secrets.GCP_SA_EMAIL }}
          service_account_key: ${{ secrets.GCP_SA_KEY }}
          export_default_credentials: true
      - uses: actions/setup-ruby@v1
        with:
          ruby-version: 2.6
      - run: gcloud info
      - name: Install bundler
        run: gem install bundler
        working-directory: src/jekyll
      - name: Install jekyll and dependencies
        run: bundle install --jobs 4 --retry 3
        working-directory: src/jekyll
      - name: Build HTML pages
        run: make build
        working-directory: src/jekyll
      - name: Publish to www.carbon-lang.dev
        run: gsutil cp -R src/jekyll/.gen-site/* gs://www.carbon-lang.dev/