upload android base code part3

android/build/blueprint/bootstrap/minibp/main.go

@@ -0,0 +1,58 @@
+// Copyright 2014 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 main
+
+import (
+	"flag"
+	"github.com/google/blueprint"
+	"github.com/google/blueprint/bootstrap"
+)
+
+var runAsPrimaryBuilder bool
+var buildPrimaryBuilder bool
+
+func init() {
+	flag.BoolVar(&runAsPrimaryBuilder, "p", false, "run as a primary builder")
+	flag.BoolVar(&buildPrimaryBuilder, "build-primary", false, "build the primary builder")
+}
+
+type Config struct {
+	generatingBootstrapper   bool
+	generatingPrimaryBuilder bool
+}
+
+func (c Config) GeneratingBootstrapper() bool {
+	return c.generatingBootstrapper
+}
+
+func (c Config) GeneratingPrimaryBuilder() bool {
+	return c.generatingPrimaryBuilder
+}
+
+func main() {
+	flag.Parse()
+
+	ctx := blueprint.NewContext()
+	if !runAsPrimaryBuilder {
+		ctx.SetIgnoreUnknownModuleTypes(true)
+	}
+
+	config := Config{
+		generatingBootstrapper:   !runAsPrimaryBuilder && !buildPrimaryBuilder,
+		generatingPrimaryBuilder: !runAsPrimaryBuilder && buildPrimaryBuilder,
+	}
+
+	bootstrap.Main(ctx, config)
+}