name: Scorecards supply-chain security
on: 
  # Only the default branch is supported.
  branch_protection_rule:
  schedule:
    # Weekly on Saturdays.
    - cron: '30 1 * * 6'
  push:
    branches: [ $default-branch ]

# Declare default permissions as read only.
permissions: read-all

jobs:
  analysis:
    name: Scorecards analysis
    runs-on: ubuntu-latest
    permissions:
      # Needed to upload the results to code-scanning dashboard.
      security-events: write
    
    steps:
      - name: "Checkout code"
        uses: actions/checkout@v1

      - name: "Run analysis"
        uses: ossf/scorecard-action@59f9117686133e93b60a8f23131f87089a076e1b
        with:
          results_file: results.sarif
          results_format: sarif
          # For the token, 
          # 1. Create a PAT token at https://github.com/settings/tokens/new
          #    with the following read permissions:
          #     - Note: OSSF Scorecard read-only token
          #     - Expiration: No expiration
          #     - Scopes: 
          #       * repo > public_repo
          #       * admin:org > read:org
          #       * admin:repo_hook > read:repo_hook
          #       * write:discussion > read:discussion
          #
          # Create and copy the token.
          #
          # 2. Create a new repository secret at https://github.com/<org>/<repo>/settings/secrets/actions
          #    with the following settings:
          #     - Name: SCORECARD_TOKEN
          #     - Value: the value of the token created in step 1 above.
          repo_token: ${{ secrets.SCORECARD_TOKEN }}
          # The Scorecard team runs a weekly scan of public GitHub repositories in order to track 
          # the overall security health of the open source ecosystem.
          # Setting `publish_results: true` replaces the results of the team's weelky scans, 
          # helping us scale by cutting down on repeated workflows and GitHub API requests.
          # This option is needed to enable badges on the repo.
          publish_results: true

      # Upload the results as artifacts.
      # https://docs.github.com/en/actions/advanced-guides/storing-workflow-data-as-artifacts
      # This is optional.
      - name: "Upload artifact"
        # Note: scorecard will flag this line if not pinned by hash.
        uses: actions/upload-artifact@v2
        with:
          name: SARIF file
          path: results.sarif
          retention-days: 5
      
      # Upload the results to GitHub's code scanning dashboard.
      # This is required to visualize the results on GitHub website.
      - name: "Upload to code-scanning"
        # Note: scorecard will flag this line if not pinned by hash.
        uses: github/codeql-action/upload-sarif@v1
        with:
          sarif_file: results.sarif