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# Copyright 2014 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This is a quick and dirty rule to make Bazel compile itself. It
# only supports Java.
proto_filetype = FileType([".proto"])
def gensrcjar_impl(ctx):
out = ctx.outputs.srcjar
ctx.action(
command=' '.join([
"JAR='%s'" % ctx.executable._jar.path,
"OUTPUT='%s'" % out.path,
"PROTO_COMPILER='%s'" % ctx.executable._proto_compiler.path,
"GRPC_JAVA_PLUGIN='%s'" % ctx.executable.grpc_java_plugin.path if \
ctx.executable.grpc_java_plugin else "",
"SOURCE='%s'" % ctx.file.src.path,
ctx.executable._gensrcjar.path,
]),
inputs=([ctx.file.src] + ctx.files._gensrcjar + ctx.files._jar +
ctx.files._jdk + ctx.files._proto_compiler),
outputs=[out],
mnemonic="GenProtoSrcJar",
use_default_shell_env=True)
return struct(runfiles=ctx.runfiles(collect_default=True))
gensrcjar = rule(
gensrcjar_impl,
attrs = {
"src": attr.label(
allow_files = proto_filetype,
single_file = True,
),
"grpc_java_plugin": attr.label(
cfg = HOST_CFG,
executable = True,
single_file = True,
),
"_gensrcjar": attr.label(
default = Label("//tools/build_rules:gensrcjar"),
executable = True,
),
# TODO(bazel-team): this should be a hidden attribute with a default
# value, but Skylark needs to support select first.
"_proto_compiler": attr.label(
default = Label("//third_party/protobuf:protoc"),
allow_files = True,
executable = True,
single_file = True,
),
"_jar": attr.label(
default = Label("@bazel_tools//tools/jdk:jar"),
allow_files = True,
executable = True,
single_file = True,
),
# The jdk dependency is required to ensure dependent libraries are found
# when we invoke jar (see issue #938).
# TODO(bazel-team): Figure out why we need to pull this in explicitly;
# the jar dependency above should just do the right thing on its own.
"_jdk": attr.label(
default = Label("@bazel_tools//tools/jdk:jdk"),
allow_files = True,
),
},
outputs = {"srcjar": "lib%{name}.srcjar"},
)
def cc_grpc_library(name, src):
basename = src[:-len(".proto")]
native.genrule(
name = name + "_codegen",
srcs = [src],
tools = ["//third_party/protobuf:protoc", "//third_party/grpc:cpp_plugin"],
cmd = "\\\n".join([
"$(location //third_party/protobuf:protoc)",
" --plugin=protoc-gen-grpc=$(location //third_party/grpc:cpp_plugin)",
" --cpp_out=$(GENDIR)",
" --grpc_out=$(GENDIR)",
" $(location " + src + ")"]),
outs = [basename + ".grpc.pb.h", basename + ".grpc.pb.cc", basename + ".pb.cc", basename + ".pb.h"])
native.cc_library(
name = name,
srcs = [basename + ".grpc.pb.cc", basename + ".pb.cc"],
hdrs = [basename + ".grpc.pb.h", basename + ".pb.h"],
deps = ["//third_party/grpc:grpc++"],
includes = ["."])
def java_proto_library(name, src, use_grpc_plugin=False):
grpc_java_plugin = None
if use_grpc_plugin:
grpc_java_plugin = "//third_party/grpc:grpc-java-plugin"
gensrcjar(name=name + "_srcjar", src=src, grpc_java_plugin=grpc_java_plugin)
deps = ["//third_party/protobuf"]
if use_grpc_plugin:
deps += ["//third_party/grpc:grpc-jar", "//third_party:guava"]
native.java_library(
name=name,
srcs=[name + "_srcjar"],
deps=deps,
# The generated code has lots of 'rawtypes' warnings.
javacopts=["-Xlint:-rawtypes"],
)
def proto_java_library(name, src):
print("Deprecated: use java_proto_library() instead, proto_java_library " +
"will be removed in version 0.2.1")
java_proto_library(name, src)
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