| #!/usr/bin/env python3 |
| # Copyright 2012 The Chromium Authors |
| # 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. |
| """ |
| |
| |
| import argparse |
| import os |
| import shutil |
| import subprocess |
| import sys |
| |
| import action_helpers |
| import zip_helpers |
| |
| sys.path.append(os.path.join(os.path.dirname(__file__),'android','gyp')) |
| from utilimport build_utils |
| |
| |
| def_HasJavaPackage(proto_lines): |
| return any(line.strip().startswith('option java_package') |
| for linein proto_lines) |
| |
| |
| def_EnforceJavaPackage(proto_srcs): |
| for proto_pathin proto_srcs: |
| with open(proto_path)as in_proto: |
| ifnot_HasJavaPackage(in_proto.readlines()): |
| raiseException('Proto files for java must contain a "java_package" ' |
| 'line: {}'.format(proto_path)) |
| |
| |
| def main(argv): |
| parser= argparse.ArgumentParser() |
| action_helpers.add_depfile_arg(parser) |
| parser.add_argument('--protoc', required=True, help='Path to protoc binary.') |
| parser.add_argument('--plugin', help='Path to plugin executable') |
| 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) |
| |
| ifnot options.java_out_dirandnot options.srcjar: |
| raiseException('One of --java-out-dir or --srcjar must be specified.') |
| |
| _EnforceJavaPackage(options.protos) |
| |
| with build_utils.TempDir()as temp_dir: |
| protoc_args=[] |
| |
| generator='java' |
| if options.plugin: |
| generator='plugin' |
| protoc_args+=['--plugin','protoc-gen-plugin='+ options.plugin] |
| |
| protoc_args+=['--proto_path', options.proto_path] |
| for pathin options.import_dir: |
| protoc_args+=['--proto_path', path] |
| |
| protoc_args+=['--'+ generator+'_out=lite:'+ temp_dir] |
| |
| # Generate Java files using protoc. |
| build_utils.CheckOutput( |
| [options.protoc]+ protoc_args+ 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: |
| with action_helpers.atomic_output(options.srcjar)as f: |
| zip_helpers.zip_directory(f, temp_dir) |
| |
| if options.depfile: |
| assert options.srcjar |
| deps= options.protos+[options.protoc] |
| action_helpers.write_depfile(options.depfile, options.srcjar, deps) |
| |
| if options.stamp: |
| build_utils.Touch(options.stamp) |
| |
| if __name__=='__main__': |
| sys.exit(main(sys.argv[1:])) |
