2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style license that can be
4 # found in the LICENSE file.
6 """Generate java source files from protobuf files.
9 protoc_java.py {protoc} {proto_path} {java_out} {stamp_file} {proto_files}
11 This is a helper file for the genproto_java action in protoc_java.gypi.
13 It performs the following steps:
14 1. Deletes all old sources (ensures deleted classes are not part of new jars).
15 2. Creates source directory.
16 3. Generates Java files using protoc.
17 4. Creates a new stamp file.
30 protoc_path, proto_path, java_out, stamp_file = argv[1:5]
31 proto_files = argv[5:]
33 # Delete all old sources.
34 if os.path.exists(java_out):
35 shutil.rmtree(java_out)
37 # Create source directory.
40 # Specify arguments to the generator.
41 generator_args = ['optional_field_style=reftypes',
42 'store_unknown_fields=true']
43 out_arg = '--javanano_out=' + ','.join(generator_args) + ':' + java_out
45 # Generate Java files using protoc.
46 ret = subprocess.call(
47 [protoc_path, '--proto_path', proto_path, out_arg] + proto_files)
50 # Create a new stamp file.
51 with file(stamp_file, 'a'):
52 os.utime(stamp_file, None)
59 if __name__ == '__main__':
60 sys.exit(main(sys.argv))