platform_build_soong/python/proto.go
Nan Zhang b8fa197878 Add Python protobuf support.
Python protobuf std libs will be wrapped in final binary/test par file.

Bug: b/70568913
Test: manually create real examples.
Change-Id: I7376ec9175f3e03d1adbd20858a7f74e826387ad
2018-03-22 15:56:51 -07:00

67 lines
1.9 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 python
import (
"android/soong/android"
"strings"
"github.com/google/blueprint"
)
func init() {
pctx.HostBinToolVariable("protocCmd", "aprotoc")
}
var (
proto = pctx.AndroidStaticRule("protoc",
blueprint.RuleParams{
Command: `rm -rf $out.tmp && mkdir -p $out.tmp && ` +
`$protocCmd --python_out=$out.tmp -I $protoBase $protoFlags $in && ` +
`$parCmd -o $out -P $pkgPath -C $out.tmp -D $out.tmp && rm -rf $out.tmp`,
CommandDeps: []string{
"$protocCmd",
"$parCmd",
},
}, "protoBase", "protoFlags", "pkgPath")
)
func genProto(ctx android.ModuleContext, p *android.ProtoProperties,
protoFile android.Path, protoFlags []string, pkgPath string) android.Path {
srcJarFile := android.PathForModuleGen(ctx, protoFile.Base()+".srcszip")
protoRoot := android.ProtoCanonicalPathFromRoot(ctx, p)
var protoBase string
if protoRoot {
protoBase = "."
} else {
protoBase = strings.TrimSuffix(protoFile.String(), protoFile.Rel())
}
ctx.Build(pctx, android.BuildParams{
Rule: proto,
Description: "protoc " + protoFile.Rel(),
Output: srcJarFile,
Input: protoFile,
Args: map[string]string{
"protoBase": protoBase,
"protoFlags": strings.Join(protoFlags, " "),
"pkgPath": pkgPath,
},
})
return srcJarFile
}