cancel-pr-tests.yml

name: Cancel PR tests

on:
  pull_request_target:
    types:
      - closed

concurrency:
  group: ${{ github.workflow }}-${{ github.event.number }}
  cancel-in-progress: true

env:
  GH_REPO: ${{ github.repository }}
  GH_NO_UPDATE_NOTIFIER: 1
  GH_PROMPT_DISABLED: 1
  PR: ${{ github.event.number }}

jobs:
  cancel-tests:
    if: >
      github.repository_owner == 'Homebrew' &&
      !github.event.pull_request.merged
    runs-on: ubuntu-latest
    container:
      image: ghcr.io/homebrew/ubuntu22.04:master
    defaults:
      run:
        shell: bash
    permissions:
      contents: read
      actions: write # for `gh run cancel`
      checks: read # for `GitHub.get_workflow_run`
    steps:
      - name: Set up Homebrew
        uses: Homebrew/actions/setup-homebrew@master
        with:
          core: false
          cask: false
          test-bot: false

      - name: Check CI status
        id: check
        env:
          HOMEBREW_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          brew check-ci-status --cancel "$PR"

      - name: Cancel tests
        if: fromJson(steps.check.outputs.cancellable-run-id) != null
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          RUN_ID: ${{ fromJson(steps.check.outputs.cancellable-run-id) }}
        run: |
          echo "::notice ::Cancelling tests on closed PR #$PR"
          gh run cancel "$RUN_ID"