runtime_resource_overlay can be included in APEXes

runtime_resource_overlay is put to an APEX via 'apps' property. It is
placed under ./overlay directory in it.

Bug: 154822536
Test: m
Change-Id: I8edf4a26c26368c52fb7b327b2ecc829f21ea148

apex/apex.go

@@ -62,6 +62,7 @@ var (
 	certificateTag = dependencyTag{name: "certificate"}
 	usesTag        = dependencyTag{name: "uses"}
 	androidAppTag  = dependencyTag{name: "androidApp", payload: true}
+	rroTag         = dependencyTag{name: "rro", payload: true}
 	apexAvailWl    = makeApexAvailableWhitelist()
 
 	inverseApexAvailWl = invertApexWhiteList(apexAvailWl)
@@ -1057,6 +1058,9 @@ type overridableProperties struct {
 	// List of APKs to package inside APEX
 	Apps []string
 
+	// List of runtime resource overlays (RROs) inside APEX
+	Rros []string
+
 	// Names of modules to be overridden. Listed modules can only be other binaries
 	// (in Make or Soong).
 	// This does not completely prevent installation of the overridden binaries, but if both
@@ -1467,6 +1471,8 @@ func (a *apexBundle) DepsMutator(ctx android.BottomUpMutatorContext) {
 func (a *apexBundle) OverridablePropertiesDepsMutator(ctx android.BottomUpMutatorContext) {
 	ctx.AddFarVariationDependencies(ctx.Config().AndroidCommonTarget.Variations(),
 		androidAppTag, a.overridableProperties.Apps...)
+	ctx.AddFarVariationDependencies(ctx.Config().AndroidCommonTarget.Variations(),
+		rroTag, a.overridableProperties.Rros...)
 }
 
 func (a *apexBundle) DepIsInSameApex(ctx android.BaseModuleContext, dep android.Module) bool {
@@ -1680,6 +1686,21 @@ func apexFileForAndroidApp(ctx android.BaseModuleContext, aapp interface {
 	return af
 }
 
+func apexFileForRuntimeResourceOverlay(ctx android.BaseModuleContext, rro java.RuntimeResourceOverlayModule) apexFile {
+	rroDir := "overlay"
+	dirInApex := filepath.Join(rroDir, rro.Theme())
+	fileToCopy := rro.OutputFile()
+	af := newApexFile(ctx, fileToCopy, rro.Name(), dirInApex, app, rro)
+	af.certificate = rro.Certificate()
+
+	if a, ok := rro.(interface {
+		OverriddenManifestPackageName() string
+	}); ok {
+		af.overriddenPackageName = a.OverriddenManifestPackageName()
+	}
+	return af
+}
+
 // Context "decorator", overriding the InstallBypassMake method to always reply `true`.
 type flattenedApexContext struct {
 	android.ModuleContext
@@ -1964,6 +1985,12 @@ func (a *apexBundle) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 				} else {
 					ctx.PropertyErrorf("apps", "%q is not an android_app module", depName)
 				}
+			case rroTag:
+				if rro, ok := child.(java.RuntimeResourceOverlayModule); ok {
+					filesInfo = append(filesInfo, apexFileForRuntimeResourceOverlay(ctx, rro))
+				} else {
+					ctx.PropertyErrorf("rros", "%q is not an runtime_resource_overlay module", depName)
+				}
 			case prebuiltTag:
 				if prebuilt, ok := child.(android.PrebuiltEtcModule); ok {
 					filesInfo = append(filesInfo, apexFileForPrebuiltEtc(ctx, prebuilt, depName))

apex/apex_test.go

@@ -521,6 +521,7 @@ func TestDefaults(t *testing.T) {
 			native_shared_libs: ["mylib"],
 			java_libs: ["myjar"],
 			apps: ["AppFoo"],
+			rros: ["rro"],
 		}
 
 		prebuilt_etc {
@@ -561,12 +562,19 @@ func TestDefaults(t *testing.T) {
 			system_modules: "none",
 			apex_available: [ "myapex" ],
 		}
+
+		runtime_resource_overlay {
+			name: "rro",
+			theme: "blue",
+		}
+
 	`)
 	ensureExactContents(t, ctx, "myapex", "android_common_myapex_image", []string{
 		"etc/myetc",
 		"javalib/myjar.jar",
 		"lib64/mylib.so",
 		"app/AppFoo/AppFoo.apk",
+		"overlay/blue/rro.apk",
 	})
 }
 

java/app.go

@@ -1412,6 +1412,15 @@ type RuntimeResourceOverlayProperties struct {
 	Resource_libs []string
 }
 
+// RuntimeResourceOverlayModule interface is used by the apex package to gather information from
+// a RuntimeResourceOverlay module.
+type RuntimeResourceOverlayModule interface {
+	android.Module
+	OutputFile() android.Path
+	Certificate() Certificate
+	Theme() string
+}
+
 func (r *RuntimeResourceOverlay) DepsMutator(ctx android.BottomUpMutatorContext) {
 	sdkDep := decodeSdkDep(ctx, sdkContext(r))
 	if sdkDep.hasFrameworkLibs() {
@@ -1464,6 +1473,18 @@ func (r *RuntimeResourceOverlay) targetSdkVersion() sdkSpec {
 	return r.sdkVersion()
 }
 
+func (r *RuntimeResourceOverlay) Certificate() Certificate {
+	return r.certificate
+}
+
+func (r *RuntimeResourceOverlay) OutputFile() android.Path {
+	return r.outputFile
+}
+
+func (r *RuntimeResourceOverlay) Theme() string {
+	return String(r.properties.Theme)
+}
+
 // runtime_resource_overlay generates a resource-only apk file that can overlay application and
 // system resources at run time.
 func RuntimeResourceOverlayFactory() android.Module {