Make aconfig flags generate a library instead of a srcjar.
Also add unit tests for the rest of device_config
Bug: 283475679
Test: m nothing (soong unit tests)
Change-Id: Iee18a1f2f2cbb23e8c8d84c54e903b32be29a693
diff --git a/java/generated_java_library.go b/java/generated_java_library.go
new file mode 100644
index 0000000..1b3de9f
--- /dev/null
+++ b/java/generated_java_library.go
@@ -0,0 +1,94 @@
+// 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 java
+
+import (
+ "android/soong/android"
+)
+
+type GeneratedJavaLibraryModule struct {
+ Library
+ callbacks GeneratedJavaLibraryCallbacks
+ moduleName string
+}
+
+type GeneratedJavaLibraryCallbacks interface {
+ // Called from inside DepsMutator, gives a chance to AddDependencies
+ DepsMutator(module *GeneratedJavaLibraryModule, ctx android.BottomUpMutatorContext)
+
+ // Called from inside GenerateAndroidBuildActions. Add the build rules to
+ // make the srcjar, and return the path to it.
+ GenerateSourceJarBuildActions(ctx android.ModuleContext) android.Path
+}
+
+// GeneratedJavaLibraryModuleFactory provides a utility for modules that are generated
+// source code, including ones outside the java package to build jar files
+// from that generated source.
+//
+// To use GeneratedJavaLibraryModule, call GeneratedJavaLibraryModuleFactory with
+// a callback interface and a properties object to add to the module.
+//
+// These modules will have some properties blocked, and it will be an error if
+// modules attempt to set them. See the list of property names in GeneratedAndroidBuildActions
+// for the list of those properties.
+func GeneratedJavaLibraryModuleFactory(moduleName string, callbacks GeneratedJavaLibraryCallbacks, properties interface{}) android.Module {
+ module := &GeneratedJavaLibraryModule{
+ callbacks: callbacks,
+ moduleName: moduleName,
+ }
+ module.addHostAndDeviceProperties()
+ module.initModuleAndImport(module)
+ android.InitApexModule(module)
+ android.InitBazelModule(module)
+ InitJavaModule(module, android.HostAndDeviceSupported)
+ if properties != nil {
+ module.AddProperties(properties)
+ }
+ return module
+}
+
+func (module *GeneratedJavaLibraryModule) DepsMutator(ctx android.BottomUpMutatorContext) {
+ module.callbacks.DepsMutator(module, ctx)
+ module.Library.DepsMutator(ctx)
+}
+
+func checkPropertyEmpty(ctx android.ModuleContext, module *GeneratedJavaLibraryModule, name string, value []string) {
+ if len(value) != 0 {
+ ctx.PropertyErrorf(name, "%s not allowed on %s", name, module.moduleName)
+ }
+}
+
+func (module *GeneratedJavaLibraryModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+ // These modules are all-generated, so disallow these properties to keep it simple.
+ // No additional sources
+ checkPropertyEmpty(ctx, module, "srcs", module.Library.properties.Srcs)
+ checkPropertyEmpty(ctx, module, "common_srcs", module.Library.properties.Common_srcs)
+ checkPropertyEmpty(ctx, module, "exclude_srcs", module.Library.properties.Exclude_srcs)
+ checkPropertyEmpty(ctx, module, "java_resource_dirs", module.Library.properties.Java_resource_dirs)
+ checkPropertyEmpty(ctx, module, "exclude_java_resource_dirs", module.Library.properties.Exclude_java_resource_dirs)
+ // No additional libraries. The generator should add anything necessary automatically
+ // by returning something from ____ (TODO: Additional libraries aren't needed now, so
+ // these are just blocked).
+ checkPropertyEmpty(ctx, module, "libs", module.Library.properties.Libs)
+ checkPropertyEmpty(ctx, module, "static_libs", module.Library.properties.Static_libs)
+ // Restrict these for no good reason other than to limit the surface area. If there's a
+ // good use case put them back.
+ checkPropertyEmpty(ctx, module, "plugins", module.Library.properties.Plugins)
+ checkPropertyEmpty(ctx, module, "exported_plugins", module.Library.properties.Exported_plugins)
+
+ srcJarPath := module.callbacks.GenerateSourceJarBuildActions(ctx)
+ module.Library.properties.Generated_srcjars = append(module.Library.properties.Generated_srcjars, srcJarPath)
+ module.Library.GenerateAndroidBuildActions(ctx)
+}