handle_validation_result.yml

name: Handle Validation Result

on:
  workflow_run:
    workflows: ["Commit Validation"]
    types: [completed]

permissions:
  actions: read
  contents: read
  issues: write
  pull-requests: write
  # needed because gh cli fetches unnecessary extra data
  repository-projects: read

jobs:
  handle-validation-result:
    runs-on: ubuntu-latest
    steps:
      - name: 'Download PR number artifact'
        uses: actions/github-script@v6
        with:
          script: |
            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
               owner: context.repo.owner,
               repo: context.repo.repo,
               run_id: context.payload.workflow_run.id,
            });
            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
              return artifact.name == "pr_number.txt"
            })[0];
            let download = await github.rest.actions.downloadArtifact({
               owner: context.repo.owner,
               repo: context.repo.repo,
               artifact_id: matchArtifact.id,
               archive_format: 'zip',
            });
            let fs = require('fs');
            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/pr_number.zip`, Buffer.from(download.data));

      - name: 'Unzip artifact'
        run: unzip pr_number.zip

      - name: Mark unstale if success
        if: ${{ github.event.workflow_run.conclusion == 'success' }}
        run: |
          export PR_NUMBER=$(cat pr_number.txt)
          echo "In repo $GH_REPO on PR $PR_NUMBER"

          if gh pr view -R"$GH_REPO" "$PR_NUMBER" --json labels | grep stale ; then
            echo "No longer stale"
            gh pr edit -R"$GH_REPO" "$PR_NUMBER" --remove-label stale
            gh pr comment -R"$GH_REPO" "$PR_NUMBER" --body 'The validity checks are now passing. Thank you.'
          else
            echo "Was already not stale"
          fi
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.event.repository.full_name }}

      - name: Make comment and mark stale if failed
        if: ${{ github.event.workflow_run.conclusion == 'failure' }}
        run: |
          export PR_NUMBER=$(cat pr_number.txt)
          echo "In repo $GH_REPO on PR $PR_NUMBER"

          echo "Mark as stale"
          gh pr edit -R"$GH_REPO" "$PR_NUMBER" --add-label stale
          gh pr comment -R"$GH_REPO" "$PR_NUMBER" --body 'The validity checks failed. Please look at the logs (click the red X) and correct the errors. Your PR will be closed automatically in 2 days if not fixed.'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.event.repository.full_name }}