1 files changed, 43 insertions, 0 deletions
diff --git a/tools/update-verify/release/replace-updater-certs.py b/tools/update-verify/release/replace-updater-certs.py
new file mode 100644
index 0000000000..55b28de0e6
--- /dev/null
+++ b/tools/update-verify/release/replace-updater-certs.py
@@ -0,0 +1,43 @@
+# 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/.
+
+from __future__ import absolute_import, print_function
+
+import os.path
+import sys
+
+cert_dir = sys.argv[1]
+# Read twice, because strings cannot be copied
+updater_data = open(sys.argv[2], "rb").read()
+new_updater = open(sys.argv[2], "rb").read()
+outfile = sys.argv[3]
+
+cert_pairs = sys.argv[4:]
+
+if (len(cert_pairs) % 2) != 0:
+    print("Certs must be provided in pairs")
+    sys.exit(1)
+
+for find_cert, replace_cert in zip(*[iter(cert_pairs)] * 2):
+    find = open(os.path.join(cert_dir, find_cert), "rb").read()
+    replace = open(os.path.join(cert_dir, replace_cert), "rb").read()
+    print("Looking for {}...".format(find_cert))
+    if find in new_updater:
+        print("Replacing {} with {}".format(find_cert, replace_cert))
+        new_updater = new_updater.replace(find, replace)
+    else:
+        print("Didn't find {}...".format(find_cert))
+
+if len(updater_data) != len(new_updater):
+    print(
+        "WARNING: new updater is not the same length as the old one (old: {}, new: {})".format(
+            len(updater_data), len(new_updater)
+        )
+    )
+
+if updater_data == new_updater:
+    print("WARNING: updater is unchanged")
+
+with open(outfile, "wb+") as f:
+    f.write(new_updater)