GN: Add depfile for java_cpp_enum

build/android/gyp/java_cpp_enum.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 collections
 from datetime import date
 import re
 import optparse
@@ skipping 288 matching lines @@
   expected = set(assert_files_list)
   if not actual == expected:
     need_to_add = list(actual - expected)
     need_to_remove = list(expected - actual)
     raise Exception('Output files list does not match expectations. Please '
                     'add %s and remove %s.' % (need_to_add, need_to_remove))
 
 def DoMain(argv):
   usage = 'usage: %prog [options] [output_dir] input_file(s)...'
   parser = optparse.OptionParser(usage=usage)
+  build_utils.AddDepfileOption(parser)
 
   parser.add_option('--assert_file', action="append", default=[],
                     dest="assert_files_list", help='Assert that the given '
                     'file is an output. There can be multiple occurrences of '
                     'this flag.')
   parser.add_option('--srcjar',
                     help='When specified, a .srcjar at the given path is '
                     'created instead of individual .java files.')
   parser.add_option('--print_output_only', help='Only print output paths.',
                     action='store_true')
   parser.add_option('--verbose', help='Print more information.',
                     action='store_true')
 
   options, args = parser.parse_args(argv)
+
+  if options.srcjar:
+    if not args:
+      parser.error('Need to specify at least one input file')
+    input_paths = args
+  else:
+    if len(args) < 2:
+      parser.error(
+          'Need to specify output directory and at least one input file')
+    output_dir = args[0]
+    input_paths = args[1:]
+
+  if options.depfile:
+    python_deps = build_utils.GetPythonDependencies()
+    build_utils.WriteDepfile(options.depfile, input_paths + python_deps)
+
   if options.srcjar:
     if options.print_output_only:
       parser.error('--print_output_only does not work with --srcjar')
     if options.assert_files_list:
       parser.error('--assert_file does not work with --srcjar')
 
     with zipfile.ZipFile(options.srcjar, 'w', zipfile.ZIP_STORED) as srcjar:
-      for output_path, data in DoGenerate(args):
+      for output_path, data in DoGenerate(input_paths):
         srcjar.writestr(build_utils.CreateHermeticZipInfo(output_path), data)
   else:
     # TODO(agrieve): Delete this non-srcjar branch once GYP is gone.
-    if len(args) < 2:
-      parser.error(
-          'Need to specify output directory and at least one input file')
-
-    output_dir = args[0]
     output_paths = []
-    for output_path, data in DoGenerate(args[1:]):
+    for output_path, data in DoGenerate(input_paths):
       full_path = os.path.join(output_dir, output_path)
       output_paths.append(full_path)
       if not options.print_output_only:
         build_utils.MakeDirectory(os.path.dirname(full_path))
         with open(full_path, 'w') as out_file:
           out_file.write(data)
 
     if options.assert_files_list:
       AssertFilesList(output_paths, options.assert_files_list)
 
     if options.verbose:
       print 'Output paths:'
       print '\n'.join(output_paths)
 
     # Used by GYP.
     return ' '.join(output_paths)
 
 
 if __name__ == '__main__':
   DoMain(sys.argv[1:])