1 files changed, 60 insertions, 0 deletions
diff --git a/taskcluster/scripts/misc/verify-devtools-bundle.py b/taskcluster/scripts/misc/verify-devtools-bundle.py
new file mode 100644
index 0000000000..b36d63f07d
--- /dev/null
+++ b/taskcluster/scripts/misc/verify-devtools-bundle.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, # You can obtain one at http://mozilla.org/MPL/2.0/.
+
+"""
+Check that the current sourcemap and worker bundles built for DevTools are up to date.
+This job should fail if any file impacting the bundle creation was modified without
+regenerating the bundles.
+
+This check should be run after building the bundles via:
+cd devtools/client/debugger
+yarn && node bin/bundle.js
+
+Those steps are done in the devtools-verify-bundle job, prior to calling this script.
+The script will only run `hg status devtools/` and check that no change is detected by
+mercurial.
+"""
+
+import subprocess
+import sys
+
+overall_failure = False
+
+print("Run `hg status devtools/`")
+status = (
+    subprocess.check_output(["hg", "status", "devtools/"]).decode("utf-8").split("\n")
+)
+print(" status:")
+print("-" * 80)
+
+failures = []
+for l in status:
+    if not l:
+        # Ignore empty lines
+        continue
+
+    if "module-manifest.json" in l:
+        # Ignore module-manifest.json updates which can randomly happen when
+        # building bundles.
+        continue
+
+    failures.append(l)
+    overall_failure = True
+
+# Revert all the changes created by `node bin/bundle.js`
+subprocess.check_output(["hg", "revert", "-C", "."])
+
+if overall_failure:
+    doc = "https://firefox-source-docs.mozilla.org/devtools/tests/node-tests.html#devtools-bundle"
+    print(
+        "TEST-UNEXPECTED-FAIL | devtools-bundle | DevTools bundles need to be regenerated, "
+        + f"instructions at: {doc}"
+    )
+
+    print("The following devtools bundles were detected as outdated:")
+    for failure in failures:
+        print(failure)
+
+    sys.exit(1)