test-ci-command.yml

name: test-CI-on-PR-command

concurrency:
  group: ci-${{ github.run_id }}
  cancel-in-progress: true

on:
  issue_comment:
    types:
      - created

jobs:
  check-before-test:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    if: github.repository_owner == 'cryostatio' && github.event.issue.pull_request && startsWith(github.event.comment.body, '/build_test')
    steps:
    - name: Fail if needs-triage label applied 
      if: ${{ contains(github.event.issue.labels.*.name, 'needs-triage') }}
      run: exit 1
    - name: Show warning if permission is denied
      if: |
        !(github.event.comment.author_association == 'MEMBER' || github.event.comment.author_association == 'OWNER')
        && (!contains(github.event.issue.labels.*.name, 'safe-to-test') || github.event.issue.user.name != github.event.comment.user.name)
      uses: thollander/actions-comment-pull-request@v2
      with:
        message: |-
          You do not have permission to run the /build_test command. Please ask @cryostatio/reviewers
          to resolve the issue.
    - name: Fail if command permission is denied
      if: |
        !(github.event.comment.author_association == 'MEMBER' || github.event.comment.author_association == 'OWNER')
        && (!contains(github.event.issue.labels.*.name, 'safe-to-test') || github.event.issue.user.name != github.event.comment.user.name)
      run: exit 1
    - name: React to comment
      uses: actions/github-script@v4
      with:
        script: |
            const {owner, repo} = context.issue
            github.reactions.createForIssueComment({
              owner,
              repo,
              comment_id: context.payload.comment.id,
              content: "+1",
            });  

  checkout-branch: 
    runs-on: ubuntu-latest
    needs: [check-before-test]
    permissions:
      pull-requests: read
    outputs: 
      PR_head_ref: ${{ fromJSON(steps.comment-branch.outputs.result).ref }}
      PR_num: ${{ fromJSON(steps.comment-branch.outputs.result).num }}
      PR_repo: ${{ fromJSON(steps.comment-branch.outputs.result).repo }}
    steps:
    - uses: actions/github-script@v4
      id: comment-branch
      with:
        script: |
          const result = await github.pulls.get ({
            owner: context.repo.owner,
            repo: context.repo.repo,
            pull_number: context.issue.number
          })
          return { repo: result.data.head.repo.full_name, num: result.data.number, ref: result.data.head.ref }
  
  get-test-image-tag:
    runs-on: ubuntu-latest
    needs: [checkout-branch]
    env:
      num: ${{ needs.checkout-branch.outputs.PR_num }}
    outputs:
      tag: ${{ steps.compute-tag.outputs.tag }}
    steps:
    - name: Compute test image tag
      id: compute-tag
      run: |
        prefix="ci"
        if [ -n "${{ env.num }}" ]; then
          prefix="pr-${{ env.num }}"
        fi
        echo "tag=${prefix}-$GITHUB_SHA" >> $GITHUB_OUTPUT

  run-test-jobs:
    uses: ./.github/workflows/test-ci-reusable.yml
    needs: [get-test-image-tag, checkout-branch]
    with:
      repository: ${{ needs.checkout-branch.outputs.PR_repo }}
      ref: ${{ needs.checkout-branch.outputs.PR_head_ref }}
      tag: ${{ needs.get-test-image-tag.outputs.tag }}