ci: auto-3way patches and detect changes (#22976)

script/export_all_patches.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+
+import argparse
+import json
+import os
+import sys
+
+from lib import git
+
+
+def export_patches(dirs):
+  for patch_dir, repo in dirs.iteritems():
+    git.export_patches(repo=repo, out_dir=patch_dir)
+
+
+def parse_args():
+  parser = argparse.ArgumentParser(description='Export Electron patches')
+  parser.add_argument('config', nargs='+',
+                      type=argparse.FileType('r'),
+                      help='patches\' config(s) in the JSON format')
+  return parser.parse_args()
+
+
+def main():
+  configs = parse_args().config
+  for config_json in configs:
+    export_patches(json.load(config_json))
+
+
+if __name__ == '__main__':
+  main()