diff options
Diffstat (limited to 'third_party/libwebrtc/build/protoc_java.py')
-rwxr-xr-x | third_party/libwebrtc/build/protoc_java.py | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/protoc_java.py b/third_party/libwebrtc/build/protoc_java.py new file mode 100755 index 0000000000..fe602a9fc9 --- /dev/null +++ b/third_party/libwebrtc/build/protoc_java.py @@ -0,0 +1,98 @@ +#!/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 protobuf files. + +This is the action script for the proto_java_library template. + +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 (output into either --java-out-dir or + --srcjar). +4. Creates a new stamp file. +""" + +from __future__ import print_function + +import argparse +import os +import shutil +import subprocess +import sys + +sys.path.append(os.path.join(os.path.dirname(__file__), 'android', 'gyp')) +from util import build_utils + + +def _HasJavaPackage(proto_lines): + return any(line.strip().startswith('option java_package') + for line in proto_lines) + + +def _EnforceJavaPackage(proto_srcs): + for proto_path in proto_srcs: + with open(proto_path) as in_proto: + if not _HasJavaPackage(in_proto.readlines()): + raise Exception('Proto files for java must contain a "java_package" ' + 'line: {}'.format(proto_path)) + + +def main(argv): + parser = argparse.ArgumentParser() + build_utils.AddDepfileOption(parser) + parser.add_argument('--protoc', required=True, help='Path to protoc binary.') + parser.add_argument('--proto-path', + required=True, + help='Path to proto directory.') + parser.add_argument('--java-out-dir', + help='Path to output directory for java files.') + parser.add_argument('--srcjar', help='Path to output srcjar.') + parser.add_argument('--stamp', help='File to touch on success.') + parser.add_argument( + '--import-dir', + action='append', + default=[], + help='Extra import directory for protos, can be repeated.') + parser.add_argument('protos', nargs='+', help='proto source files') + options = parser.parse_args(argv) + + if not options.java_out_dir and not options.srcjar: + raise Exception('One of --java-out-dir or --srcjar must be specified.') + + _EnforceJavaPackage(options.protos) + + with build_utils.TempDir() as temp_dir: + out_arg = '--java_out=lite:' + temp_dir + + proto_path_args = ['--proto_path', options.proto_path] + for path in options.import_dir: + proto_path_args += ["--proto_path", path] + + # Generate Java files using protoc. + build_utils.CheckOutput( + [options.protoc] + proto_path_args + [out_arg] + options.protos, + # protoc generates superfluous warnings about LITE_RUNTIME deprecation + # even though we are using the new non-deprecated method. + stderr_filter=lambda output: build_utils.FilterLines( + output, '|'.join([r'optimize_for = LITE_RUNTIME', r'java/lite\.md']) + )) + + if options.java_out_dir: + build_utils.DeleteDirectory(options.java_out_dir) + shutil.copytree(temp_dir, options.java_out_dir) + else: + build_utils.ZipDir(options.srcjar, temp_dir) + + if options.depfile: + assert options.srcjar + deps = options.protos + [options.protoc] + build_utils.WriteDepfile(options.depfile, options.srcjar, deps) + + if options.stamp: + build_utils.Touch(options.stamp) + +if __name__ == '__main__': + sys.exit(main(sys.argv[1:])) |