1*6777b538SAndroid Build Coastguard Worker#!/usr/bin/env python3 2*6777b538SAndroid Build Coastguard Worker# Copyright 2012 The Chromium Authors 3*6777b538SAndroid Build Coastguard Worker# Use of this source code is governed by a BSD-style license that can be 4*6777b538SAndroid Build Coastguard Worker# found in the LICENSE file. 5*6777b538SAndroid Build Coastguard Worker 6*6777b538SAndroid Build Coastguard Worker"""Generate java source files from protobuf files. 7*6777b538SAndroid Build Coastguard Worker 8*6777b538SAndroid Build Coastguard WorkerThis is the action script for the proto_java_library template. 9*6777b538SAndroid Build Coastguard Worker 10*6777b538SAndroid Build Coastguard WorkerIt performs the following steps: 11*6777b538SAndroid Build Coastguard Worker1. Deletes all old sources (ensures deleted classes are not part of new jars). 12*6777b538SAndroid Build Coastguard Worker2. Creates source directory. 13*6777b538SAndroid Build Coastguard Worker3. Generates Java files using protoc (output into either --java-out-dir or 14*6777b538SAndroid Build Coastguard Worker --srcjar). 15*6777b538SAndroid Build Coastguard Worker4. Creates a new stamp file. 16*6777b538SAndroid Build Coastguard Worker""" 17*6777b538SAndroid Build Coastguard Worker 18*6777b538SAndroid Build Coastguard Worker 19*6777b538SAndroid Build Coastguard Workerimport argparse 20*6777b538SAndroid Build Coastguard Workerimport os 21*6777b538SAndroid Build Coastguard Workerimport shutil 22*6777b538SAndroid Build Coastguard Workerimport subprocess 23*6777b538SAndroid Build Coastguard Workerimport sys 24*6777b538SAndroid Build Coastguard Worker 25*6777b538SAndroid Build Coastguard Workerimport action_helpers 26*6777b538SAndroid Build Coastguard Workerimport zip_helpers 27*6777b538SAndroid Build Coastguard Worker 28*6777b538SAndroid Build Coastguard Workersys.path.append(os.path.join(os.path.dirname(__file__), 'android', 'gyp')) 29*6777b538SAndroid Build Coastguard Workerfrom util import build_utils 30*6777b538SAndroid Build Coastguard Worker 31*6777b538SAndroid Build Coastguard Worker 32*6777b538SAndroid Build Coastguard Workerdef _HasJavaPackage(proto_lines): 33*6777b538SAndroid Build Coastguard Worker return any(line.strip().startswith('option java_package') 34*6777b538SAndroid Build Coastguard Worker for line in proto_lines) 35*6777b538SAndroid Build Coastguard Worker 36*6777b538SAndroid Build Coastguard Worker 37*6777b538SAndroid Build Coastguard Workerdef _EnforceJavaPackage(proto_srcs): 38*6777b538SAndroid Build Coastguard Worker for proto_path in proto_srcs: 39*6777b538SAndroid Build Coastguard Worker with open(proto_path) as in_proto: 40*6777b538SAndroid Build Coastguard Worker if not _HasJavaPackage(in_proto.readlines()): 41*6777b538SAndroid Build Coastguard Worker raise Exception('Proto files for java must contain a "java_package" ' 42*6777b538SAndroid Build Coastguard Worker 'line: {}'.format(proto_path)) 43*6777b538SAndroid Build Coastguard Worker 44*6777b538SAndroid Build Coastguard Worker 45*6777b538SAndroid Build Coastguard Workerdef main(argv): 46*6777b538SAndroid Build Coastguard Worker parser = argparse.ArgumentParser() 47*6777b538SAndroid Build Coastguard Worker action_helpers.add_depfile_arg(parser) 48*6777b538SAndroid Build Coastguard Worker parser.add_argument('--protoc', required=True, help='Path to protoc binary.') 49*6777b538SAndroid Build Coastguard Worker parser.add_argument('--plugin', help='Path to plugin executable') 50*6777b538SAndroid Build Coastguard Worker parser.add_argument('--proto-path', 51*6777b538SAndroid Build Coastguard Worker required=True, 52*6777b538SAndroid Build Coastguard Worker help='Path to proto directory.') 53*6777b538SAndroid Build Coastguard Worker parser.add_argument('--java-out-dir', 54*6777b538SAndroid Build Coastguard Worker help='Path to output directory for java files.') 55*6777b538SAndroid Build Coastguard Worker parser.add_argument('--srcjar', help='Path to output srcjar.') 56*6777b538SAndroid Build Coastguard Worker parser.add_argument('--stamp', help='File to touch on success.') 57*6777b538SAndroid Build Coastguard Worker parser.add_argument( 58*6777b538SAndroid Build Coastguard Worker '--import-dir', 59*6777b538SAndroid Build Coastguard Worker action='append', 60*6777b538SAndroid Build Coastguard Worker default=[], 61*6777b538SAndroid Build Coastguard Worker help='Extra import directory for protos, can be repeated.') 62*6777b538SAndroid Build Coastguard Worker parser.add_argument('protos', nargs='+', help='proto source files') 63*6777b538SAndroid Build Coastguard Worker options = parser.parse_args(argv) 64*6777b538SAndroid Build Coastguard Worker 65*6777b538SAndroid Build Coastguard Worker if not options.java_out_dir and not options.srcjar: 66*6777b538SAndroid Build Coastguard Worker raise Exception('One of --java-out-dir or --srcjar must be specified.') 67*6777b538SAndroid Build Coastguard Worker 68*6777b538SAndroid Build Coastguard Worker _EnforceJavaPackage(options.protos) 69*6777b538SAndroid Build Coastguard Worker 70*6777b538SAndroid Build Coastguard Worker with build_utils.TempDir() as temp_dir: 71*6777b538SAndroid Build Coastguard Worker protoc_args = [] 72*6777b538SAndroid Build Coastguard Worker 73*6777b538SAndroid Build Coastguard Worker generator = 'java' 74*6777b538SAndroid Build Coastguard Worker if options.plugin: 75*6777b538SAndroid Build Coastguard Worker generator = 'plugin' 76*6777b538SAndroid Build Coastguard Worker protoc_args += ['--plugin', 'protoc-gen-plugin=' + options.plugin] 77*6777b538SAndroid Build Coastguard Worker 78*6777b538SAndroid Build Coastguard Worker protoc_args += ['--proto_path', options.proto_path] 79*6777b538SAndroid Build Coastguard Worker for path in options.import_dir: 80*6777b538SAndroid Build Coastguard Worker protoc_args += ['--proto_path', path] 81*6777b538SAndroid Build Coastguard Worker 82*6777b538SAndroid Build Coastguard Worker protoc_args += ['--' + generator + '_out=lite:' + temp_dir] 83*6777b538SAndroid Build Coastguard Worker 84*6777b538SAndroid Build Coastguard Worker # Generate Java files using protoc. 85*6777b538SAndroid Build Coastguard Worker build_utils.CheckOutput( 86*6777b538SAndroid Build Coastguard Worker [options.protoc] + protoc_args + options.protos, 87*6777b538SAndroid Build Coastguard Worker # protoc generates superfluous warnings about LITE_RUNTIME deprecation 88*6777b538SAndroid Build Coastguard Worker # even though we are using the new non-deprecated method. 89*6777b538SAndroid Build Coastguard Worker stderr_filter=lambda output: build_utils.FilterLines( 90*6777b538SAndroid Build Coastguard Worker output, '|'.join([r'optimize_for = LITE_RUNTIME', r'java/lite\.md']) 91*6777b538SAndroid Build Coastguard Worker )) 92*6777b538SAndroid Build Coastguard Worker 93*6777b538SAndroid Build Coastguard Worker if options.java_out_dir: 94*6777b538SAndroid Build Coastguard Worker build_utils.DeleteDirectory(options.java_out_dir) 95*6777b538SAndroid Build Coastguard Worker shutil.copytree(temp_dir, options.java_out_dir) 96*6777b538SAndroid Build Coastguard Worker else: 97*6777b538SAndroid Build Coastguard Worker with action_helpers.atomic_output(options.srcjar) as f: 98*6777b538SAndroid Build Coastguard Worker zip_helpers.zip_directory(f, temp_dir) 99*6777b538SAndroid Build Coastguard Worker 100*6777b538SAndroid Build Coastguard Worker if options.depfile: 101*6777b538SAndroid Build Coastguard Worker assert options.srcjar 102*6777b538SAndroid Build Coastguard Worker deps = options.protos + [options.protoc] 103*6777b538SAndroid Build Coastguard Worker action_helpers.write_depfile(options.depfile, options.srcjar, deps) 104*6777b538SAndroid Build Coastguard Worker 105*6777b538SAndroid Build Coastguard Worker if options.stamp: 106*6777b538SAndroid Build Coastguard Worker build_utils.Touch(options.stamp) 107*6777b538SAndroid Build Coastguard Worker 108*6777b538SAndroid Build Coastguard Workerif __name__ == '__main__': 109*6777b538SAndroid Build Coastguard Worker sys.exit(main(sys.argv[1:])) 110