From c8a1b2b1ae1a6eb6ec7a15b977439a118b38dbf1 Mon Sep 17 00:00:00 2001
From: phlax <phlax@users.noreply.github.com>
Date: Mon, 16 Dec 2024 17:30:23 +0000
Subject: [PATCH] ci/github: Add `workflows:untested` label to PRs that change
 workflows (#37685)

Signed-off-by: Ryan Northey <ryan@synca.io>
---
 ci/repokitteh/modules/workflows.star | 22 ++++++++++++++++++++++
 repokitteh.star                      |  1 +
 2 files changed, 23 insertions(+)
 create mode 100644 ci/repokitteh/modules/workflows.star

diff --git a/ci/repokitteh/modules/workflows.star b/ci/repokitteh/modules/workflows.star
new file mode 100644
index 000000000000..9f0704ffe119
--- /dev/null
+++ b/ci/repokitteh/modules/workflows.star
@@ -0,0 +1,22 @@
+# Flags when a Pull request makes changes to .github/
+#
+# use("github.com/repokitteh/modules/workflows.star")
+#
+
+load("text", "match")
+
+UNTESTED_WORKFLOWS_LABEL = "workflows:untested"
+
+
+def _check_workflow_changes():
+    matched = [f for f in github.pr_list_files() if match("^\.github/.*", f['filename'])]
+    if matched:
+        github.issue_label(UNTESTED_WORKFLOWS_LABEL)
+
+
+def _pr(action):
+    if action in ['synchronize', 'opened']:
+        _check_workflow_changes()
+
+
+handlers.pull_request(func=_pr)
diff --git a/repokitteh.star b/repokitteh.star
index 1e67dbe810c6..f16679878f2c 100644
--- a/repokitteh.star
+++ b/repokitteh.star
@@ -51,6 +51,7 @@ use(
   ],
 )
 use("github.com/envoyproxy/envoy/ci/repokitteh/modules/versionchange.star")
+use("github.com/envoyproxy/envoy/ci/repokitteh/modules/workflows.star")
 
 def _backport():
   github.issue_label('backport/review')