1# Copyright (c) 2012 The Chromium Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5# This file is meant to be included into a target to provide a rule 6# to invoke protoc in a consistent manner. This is only to be included 7# for Java targets. When including this file, a .jar-file will be generated. 8# For other targets, see protoc.gypi. 9# 10# To use this, create a gyp target with the following form: 11# { 12# 'target_name': 'my_proto_lib', 13# 'sources': [ 14# 'foo.proto', 15# 'bar.proto', 16# ], 17# 'variables': { 18# 'proto_in_dir': '.' 19# }, 20# 'includes': ['path/to/this/gypi/file'], 21# } 22# 23# The 'proto_in_dir' variable must be the relative path to the 24# directory containing the .proto files. If left out, it defaults to '.'. 25# 26# The 'output_java_files' variable specifies a list of output files that will 27# be generated. It is based on the package and java_outer_classname fields in 28# the proto. All the values must be prefixed with >(java_out_dir), since that 29# is the root directory of all the output. 30# 31# Implementation notes: 32# A target_name of foo and proto-specified 'package' java.package.path produces: 33# <(PRODUCT_DIR)/java_proto/foo/{java/package/path/}{Foo,Bar}.java 34# where Foo and Bar are taken from 'java_outer_classname' of the protos. 35# 36# How the .jar-file is created is different than how protoc is used for other 37# targets, and as such, this lives in its own file. 38 39{ 40 'variables': { 41 'protoc': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)protoc<(EXECUTABLE_SUFFIX)', 42 'java_out_dir': '<(PRODUCT_DIR)/java_proto/<(_target_name)/src', 43 'proto_in_dir%': '.', 44 'stamp_file': '<(java_out_dir).stamp', 45 'script': '<(DEPTH)/build/protoc_java.py', 46 47 # The rest of the variables here are for the java.gypi include. 48 'java_in_dir': '<(DEPTH)/build/android/empty', 49 'generated_src_dirs': ['<(java_out_dir)'], 50 # Adding the |stamp_file| to |additional_input_paths| makes the actions in 51 # the include of java.gypi depend on the genproto_java action. 52 'additional_input_paths': ['<(stamp_file)'], 53 }, 54 'actions': [ 55 { 56 'action_name': 'genproto_java', 57 'inputs': [ 58 '<(script)', 59 '<(protoc)', 60 '<@(_sources)', 61 ], 62 # We do not know the names of the generated files, so we use a stamp. 63 'outputs': [ 64 '<(stamp_file)', 65 ], 66 'action': [ 67 '<(script)', 68 '<(protoc)', 69 '<(proto_in_dir)', 70 '<(java_out_dir)', 71 '<(stamp_file)', 72 '<@(_sources)', 73 ], 74 'message': 'Generating Java code from <(proto_in_dir)', 75 }, 76 ], 77 'dependencies': [ 78 '<(DEPTH)/third_party/protobuf/protobuf.gyp:protoc#host', 79 '<(DEPTH)/third_party/protobuf/protobuf.gyp:protobuf_lite_javalib', 80 ], 81 'includes': [ 'java.gypi' ], 82} 83