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#!/usr/bin/env python
# Copyright (c) 2012 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.
"""Generate java source files from protobufs
Usage:
protoc_java.py {protoc} {proto_path} {java_out} {stamp_file} {proto_files}
This is a helper file for the genproto_java action in protoc_java.gypi.
It performs the following steps:
1. Deletes all old sources (ensures deleted classes are not part of new jars).
2. Creates source directory.
3. Generates Java files using protoc.
4. Creates a new stamp file.
"""
import os
import shutil
import subprocess
import sys
def main(argv):
if len(argv) < 5:
usage()
return 1
protoc_path, proto_path, java_out, stamp_file = argv[1:5]
proto_files = argv[5:]
# Delete all old sources
if os.path.exists(java_out):
shutil.rmtree(java_out)
# Create source directory
os.makedirs(java_out)
# Generate Java files using protoc
ret = subprocess.call(
[protoc_path, '--proto_path', proto_path, '--java_out', java_out]
+ proto_files)
if ret == 0:
# Create a new stamp file
with file(stamp_file, 'a'):
os.utime(stamp_file, None)
return ret
def usage():
print(__doc__);
if __name__ == '__main__':
sys.exit(main(sys.argv))
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