repokitteh: Label version change PRs (#25853)

Signed-off-by: Ryan Northey <[email protected]>

ci/repokitteh/modules/versionchange.star

@@ -0,0 +1,23 @@
+# Flags when a Pull request makes changes to VERSION.txt
+#
+# use("github.com/repokitteh/modules/versionchange.star")
+#
+
+load("text", "match")
+
+# TODO(phlax): put this in config
+VERSION_CHANGE_LABEL = "version-change"
+
+
+def _check_version_changes():
+    matched = [f for f in github.pr_list_files() if match("VERSION.txt", f['filename'])]
+    if matched:
+        github.issue_label(VERSION_CHANGE_LABEL)
+
+
+def _pr(action):
+    if action in ['synchronize', 'opened']:
+        _check_version_changes()
+
+
+handlers.pull_request(func=_pr)

repokitteh.star

@@ -50,6 +50,7 @@ use(
     },
   ],
 )
+use("github.com/envoyproxy/envoy/ci/repokitteh/modules/versionchange.star")
 
 alias('retest', 'retry-azp')