1 files changed, 50 insertions, 0 deletions
diff --git a/python/proto.go b/python/proto.go
new file mode 100644
index 000000000..85ed1a517
--- /dev/null
+++ b/python/proto.go
@@ -0,0 +1,50 @@
+// 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"
+)
+
+func genProto(ctx android.ModuleContext, protoFile android.Path, flags android.ProtoFlags, pkgPath string) android.Path {
+	srcsZipFile := android.PathForModuleGen(ctx, protoFile.Base()+".srcszip")
+
+	outDir := srcsZipFile.ReplaceExtension(ctx, "tmp")
+	depFile := srcsZipFile.ReplaceExtension(ctx, "srcszip.d")
+
+	rule := android.NewRuleBuilder()
+
+	rule.Command().Text("rm -rf").Flag(outDir.String())
+	rule.Command().Text("mkdir -p").Flag(outDir.String())
+
+	android.ProtoRule(ctx, rule, protoFile, flags, flags.Deps, outDir, depFile, nil)
+
+	// Proto generated python files have an unknown package name in the path, so package the entire output directory
+	// into a srcszip.
+	zipCmd := rule.Command().
+		Tool(ctx.Config().HostToolPath(ctx, "soong_zip")).
+		FlagWithOutput("-o ", srcsZipFile)
+	if pkgPath != "" {
+		zipCmd.FlagWithArg("-P ", pkgPath)
+	}
+	zipCmd.FlagWithArg("-C ", outDir.String()).
+		FlagWithArg("-D ", outDir.String())
+
+	rule.Command().Text("rm -rf").Flag(outDir.String())
+
+	rule.Build(pctx, ctx, "protoc_"+protoFile.Rel(), "protoc "+protoFile.Rel())
+
+	return srcsZipFile
+}