name: "Close stale issues and PRs"
on:
  schedule:
    - cron: "0 8 * * 1-5" # This is in UTC.
  # Do a dry-run (debug-only: true) whenever this workflow itself is changed.
  pull_request:
    paths:
      - .github/workflows/stale.yml
    types:
      - opened
      - synchronize

permissions:
  issues: write
  pull-requests: write

jobs:
  stale:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/stale@v7
        with:
          ascending: true # Spend API operations budget on older, more-likely-to-get-closed issues first
          close-issue-message: "" # Leave no comment when closing
          close-pr-message: "" # Leave no comment when closing
          days-before-issue-stale: 30
          days-before-pr-stale: 30
          days-before-close: 14
          debug-only: ${{ github.event_name == 'pull_request' }} # Dry-run when true.
          exempt-issue-labels: bug,enhancement,feature,question
          # No actual changes get made in debug-only mode, so we can raise the operations ceiling.
          operations-per-run: ${{ github.event_name == 'pull_request' && 100 || 30}}
          stale-issue-label: stale
          stale-issue-message: "This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions."
          stale-pr-label: stale
          stale-pr-message: "This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions."
          # Time immemorial when in debug-only mode (ie. on pull requests).
          # `STALEBOT_START_DATE` otherwise.
          # You can use this as a killswitch by setting `STALEBOT_START_DATE` in the far future.
          start-date: ${{ github.event_name == 'pull_request' && '1970-01-01T00:00:00Z' || secrets.STALEBOT_START_DATE }} # ISO 8601 or RFC 2822