1 files changed, 72 insertions, 0 deletions
diff --git a/android/package.go b/android/package.go
new file mode 100644
index 000000000..182b3ed6e
--- /dev/null
+++ b/android/package.go
@@ -0,0 +1,72 @@
+// Copyright 2019 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 android
+
+import (
+	"github.com/google/blueprint"
+	"github.com/google/blueprint/proptools"
+)
+
+func init() {
+	RegisterPackageBuildComponents(InitRegistrationContext)
+}
+
+// Register the package module type.
+func RegisterPackageBuildComponents(ctx RegistrationContext) {
+	ctx.RegisterModuleType("package", PackageFactory)
+}
+
+type packageProperties struct {
+	// Specifies the default visibility for all modules defined in this package.
+	Default_visibility []string
+}
+
+type packageModule struct {
+	ModuleBase
+
+	properties packageProperties
+}
+
+func (p *packageModule) GenerateAndroidBuildActions(ModuleContext) {
+	// Nothing to do.
+}
+
+func (p *packageModule) GenerateBuildActions(ctx blueprint.ModuleContext) {
+	// Nothing to do.
+}
+
+func (p *packageModule) qualifiedModuleId(ctx BaseModuleContext) qualifiedModuleName {
+	// Override to create a package id.
+	return newPackageId(ctx.ModuleDir())
+}
+
+func PackageFactory() Module {
+	module := &packageModule{}
+
+	module.AddProperties(&module.properties)
+
+	// The name is the relative path from build root to the directory containing this
+	// module. Set that name at the earliest possible moment that information is available
+	// which is in a LoadHook.
+	AddLoadHook(module, func(ctx LoadHookContext) {
+		module.nameProperties.Name = proptools.StringPtr("//" + ctx.ModuleDir())
+	})
+
+	// The default_visibility property needs to be checked and parsed by the visibility module during
+	// its checking and parsing phases so make it the primary visibility property.
+	setPrimaryVisibilityProperty(module, "default_visibility", &module.properties.Default_visibility)
+
+	return module
+}