1 #!/usr/bin/env python 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. 5 6 """Generate java source files from protobufs 7 8 Usage: 9 protoc_java.py {protoc} {proto_path} {java_out} {stamp_file} {proto_files} 10 11 This is a helper file for the genproto_java action in protoc_java.gypi. 12 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. 18 """ 19 20 import os 21 import shutil 22 import subprocess 23 import sys 24 25 def main(argv): 26 if len(argv) < 5: 27 usage() 28 return 1 29 30 protoc_path, proto_path, java_out, stamp_file = argv[1:5] 31 proto_files = argv[5:] 32 33 # Delete all old sources 34 if os.path.exists(java_out): 35 shutil.rmtree(java_out) 36 37 # Create source directory 38 os.makedirs(java_out) 39 40 # Generate Java files using protoc 41 ret = subprocess.call( 42 [protoc_path, '--proto_path', proto_path, '--java_out', java_out] 43 + proto_files) 44 45 if ret == 0: 46 # Create a new stamp file 47 with file(stamp_file, 'a'): 48 os.utime(stamp_file, None) 49 50 return ret 51 52 def usage(): 53 print(__doc__); 54 55 if __name__ == '__main__': 56 sys.exit(main(sys.argv)) 57
