cancel-pr-workflows.yml

name: Cancel PR Workflows

on:
  pull_request:
    types: [closed]

jobs:
  cancel:
    name: Cancel In-Progress Workflows
    runs-on: ubuntu-latest
    steps:
      - name: Cancel in-progress workflow runs
        uses: actions/github-script@v9
        with:
          script: |
            const { owner, repo } = context.repo;
            const branch = context.payload.pull_request.head.ref;

            const workflows = await github.rest.actions.listWorkflowRunsForRepo({
              owner,
              repo,
              branch,
              status: 'in_progress',
            });

            const waitingWorkflows = await github.rest.actions.listWorkflowRunsForRepo({
              owner,
              repo,
              branch,
              status: 'queued',
            });

            const runs = [...workflows.data.workflow_runs, ...waitingWorkflows.data.workflow_runs];

            for (const run of runs) {
              if (run.id === context.runId) {
                continue;
              }
              try {
                console.log(`Cancelling run ${run.id} (${run.name})`);
                await github.rest.actions.cancelWorkflowRun({
                  owner,
                  repo,
                  run_id: run.id,
                });
              } catch (error) {
                console.log(`Failed to cancel run ${run.id}: ${error.message}`);
              }
            }

            console.log(`Cancelled ${runs.length > 1 ? runs.length - 1 : 0} workflow run(s) for branch ${branch}`);