WIP: Pull request comment

Author: ahoppen

.github/workflows/pull_request.yml

@@ -1,8 +1,10 @@
 name: Pull request
 
 on:
-  pull_request:
-    types: [opened, reopened, synchronize]
+  # pull_request:
+  #   types: [opened, reopened, synchronize]
+  pull_request_review:
+    types: [submitted, edited]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -12,11 +14,13 @@ jobs:
   tests:
     name: Test
     uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@main
+    if: (github.event_name == 'pull_request') || (github.event_name == 'pull_request_review' && contains(github.event.review.state, 'Re-run GitHub Actions'))
     with:
       linux_exclude_swift_versions: "[{\"swift_version\": \"5.8\"}]"
   soundness:
     name: Soundness
     uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
+    if: (github.event_name == 'pull_request') || (github.event_name == 'pull_request_review' && contains(github.event.review.state, 'Re-run GitHub Actions'))
     with:
       license_header_check_project_name: "Swift.org"
       api_breakage_check_allowlist_path: "api-breakages.txt"

.github/workflows/pull_request_comment.yml

@@ -0,0 +1,9 @@
+name: Pull request comment
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  run_pr_tests:
+    uses: ./.github/workflows/pull_request.yml