Port cronet_package GYP target to GN

components/cronet/tools/jar_src.py

 #!/usr/bin/env python
 #
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import fnmatch
 import optparse
 import os
 import sys
@@ skipping 14 matching lines @@
   if os.path.exists(jar_path):
     jar_cmd = ['jar', 'uf', jar_path, '.']
   else:
     jar_cmd = ['jar', 'cf', jar_path, '.']
 
   build_utils.CheckOutput(jar_cmd, cwd=jar_cwd)
 
 
 def main():
   parser = optparse.OptionParser()
+  build_utils.AddDepfileOption(parser)
   parser.add_option('--src-dir', action="append",
       help='Directory containing .java files.')
   parser.add_option('--jar-path', help='Jar output path.')
   parser.add_option('--stamp', help='Path to touch on success.')
 
   options, _ = parser.parse_args()
 
+  src_dirs = []
   for src_dir in options.src_dir:
+    src_dirs.extend(build_utils.ParseGypList(src_dir))
+
+  for src_dir in src_dirs:
     JarSources(src_dir, options.jar_path)
 
+  if options.depfile:
+    input_paths = []
+    for src_dir in src_dirs:
+      for root, _, filenames in os.walk(src_dir):
+        input_paths.extend(os.path.join(root, f) for f in filenames)
+    build_utils.WriteDepfile(options.depfile,
+                             input_paths + build_utils.GetPythonDependencies())
+
   if options.stamp:
     build_utils.Touch(options.stamp)
 
-
 if __name__ == '__main__':
   sys.exit(main())