1 files changed, 44 insertions, 0 deletions
diff --git a/sdk/genrule.go b/sdk/genrule.go
new file mode 100644
index 000000000..347ab0556
--- /dev/null
+++ b/sdk/genrule.go
@@ -0,0 +1,44 @@
+// Copyright 2023 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 sdk
+
+import (
+	"android/soong/android"
+	"android/soong/genrule"
+)
+
+func init() {
+	registerGenRuleBuildComponents(android.InitRegistrationContext)
+}
+
+func registerGenRuleBuildComponents(ctx android.RegistrationContext) {
+	ctx.RegisterModuleType("sdk_genrule", SdkGenruleFactory)
+}
+
+// sdk_genrule_host is a genrule that can depend on sdk and sdk_snapshot module types
+//
+// What this means is that it's a genrule with only the "common_os" variant.
+// sdk modules have 3 variants: host, android, and common_os. The common_os one depends
+// on the host/device ones and packages their result into a final snapshot zip.
+// Genrules probably want access to this snapshot zip when they depend on an sdk module,
+// which means they want to depend on the common_os variant and not the host/android
+// variants.
+func SdkGenruleFactory() android.Module {
+	module := genrule.NewGenRule()
+
+	android.InitCommonOSAndroidMultiTargetsArchModule(module, android.NeitherHostNorDeviceSupported, android.MultilibCommon)
+	android.InitDefaultableModule(module)
+
+	return module
+}