platform_build_soong/java/proto.go

98 lines
3.0 KiB
Go

// Copyright 2017 Google Inc. 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.
package java
import (
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
"android/soong/android"
)
func init() {
pctx.HostBinToolVariable("protocCmd", "aprotoc")
}
var (
proto = pctx.AndroidStaticRule("protoc",
blueprint.RuleParams{
Command: `rm -rf $outDir && mkdir -p $outDir && ` +
`$protocCmd $protoOut=$protoOutFlags:$outDir $protoFlags $in && ` +
`${config.SoongZipCmd} -jar -o $out -C $outDir -D $outDir`,
CommandDeps: []string{
"$protocCmd",
"${config.SoongZipCmd}",
},
}, "protoFlags", "protoOut", "protoOutFlags", "outDir")
)
func genProto(ctx android.ModuleContext, outputSrcJar android.WritablePath,
protoFiles android.Paths, protoFlags string, protoOut, protoOutFlags string) {
ctx.Build(pctx, android.BuildParams{
Rule: proto,
Description: "protoc " + protoFiles[0].Rel(),
Output: outputSrcJar,
Inputs: protoFiles,
Args: map[string]string{
"outDir": android.ProtoDir(ctx).String(),
"protoOut": protoOut,
"protoOutFlags": protoOutFlags,
"protoFlags": protoFlags,
},
})
}
func protoDeps(ctx android.BottomUpMutatorContext, p *android.ProtoProperties) {
switch proptools.String(p.Proto.Type) {
case "micro":
ctx.AddDependency(ctx.Module(), staticLibTag, "libprotobuf-java-micro")
case "nano":
ctx.AddDependency(ctx.Module(), staticLibTag, "libprotobuf-java-nano")
case "stream":
// TODO(ccross): add dependency on protoc-gen-java-stream binary
ctx.PropertyErrorf("proto.type", `"stream" not supported yet`)
// No library for stream protobufs
case "lite", "":
ctx.AddDependency(ctx.Module(), staticLibTag, "libprotobuf-java-lite")
case "full":
if ctx.Host() {
ctx.AddDependency(ctx.Module(), staticLibTag, "libprotobuf-java-full")
} else {
ctx.PropertyErrorf("proto.type", "full java protos only supported on the host")
}
default:
ctx.PropertyErrorf("proto.type", "unknown proto type %q",
proptools.String(p.Proto.Type))
}
}
func protoFlags(ctx android.ModuleContext, p *android.ProtoProperties, flags javaBuilderFlags) javaBuilderFlags {
switch proptools.String(p.Proto.Type) {
case "micro":
flags.protoOutFlag = "--javamicro_out"
case "nano":
flags.protoOutFlag = "--javanano_out"
case "stream":
flags.protoOutFlag = "--javastream_out"
case "lite", "full", "":
flags.protoOutFlag = "--java_out"
default:
ctx.PropertyErrorf("proto.type", "unknown proto type %q",
proptools.String(p.Proto.Type))
}
return flags
}