Move checkbuild targets of Soong modules into Soong

Pass the name of Soong's checkbuild target for each module to
Make so that it can depend on it from the main checkbuild rule.
This will give better control over which files get built, allowing
checkbuild to skip the jar combining step when transitive classpath
jars are enabled.  The per-module checkbuild targets are passed to
make instead of added directly as a dependency of checkbuild in order
to maintain the existing behavior of only building modules exposed
to make in checkbuild.

Also tweak the existing calls to CheckbuildFile and add
InstallFileWithoutCheckbuild to match the files that are
in the Make-based checkbuild.

Bug: 308016794
Test: m checkbuild
Change-Id: Ic5140819381d58f4d00f23a7a12447950c4cf268

android/module.go

@@ -1545,26 +1545,43 @@ func (m *ModuleBase) VintfFragmentModuleNames(ctx ConfigAndErrorContext) []strin
 	return m.base().commonProperties.Vintf_fragment_modules.GetOrDefault(m.ConfigurableEvaluator(ctx), nil)
 }
 
+func (m *ModuleBase) generateVariantTarget(ctx *moduleContext) {
+	namespacePrefix := ctx.Namespace().id
+	if namespacePrefix != "" {
+		namespacePrefix = namespacePrefix + "-"
+	}
+
+	if !ctx.uncheckedModule {
+		name := namespacePrefix + ctx.ModuleName() + "-" + ctx.ModuleSubDir() + "-checkbuild"
+		ctx.Phony(name, ctx.checkbuildFiles...)
+		ctx.checkbuildTarget = PathForPhony(ctx, name)
+	}
+
+}
+
 func (m *ModuleBase) generateModuleTarget(ctx *moduleContext) {
 	var allInstalledFiles InstallPaths
-	var allCheckbuildFiles Paths
+	var allCheckbuildTargets Paths
 	ctx.VisitAllModuleVariants(func(module Module) {
 		a := module.base()
-		var checkBuilds Paths
+		var checkbuildTarget Path
+		var uncheckedModule bool
 		if a == m {
 			allInstalledFiles = append(allInstalledFiles, ctx.installFiles...)
-			checkBuilds = ctx.checkbuildFiles
+			checkbuildTarget = ctx.checkbuildTarget
+			uncheckedModule = ctx.uncheckedModule
 		} else {
 			info := OtherModuleProviderOrDefault(ctx, module, InstallFilesProvider)
 			allInstalledFiles = append(allInstalledFiles, info.InstallFiles...)
-			checkBuilds = info.CheckbuildFiles
+			checkbuildTarget = info.CheckbuildTarget
+			uncheckedModule = info.UncheckedModule
 		}
 		// A module's -checkbuild phony targets should
 		// not be created if the module is not exported to make.
 		// Those could depend on the build target and fail to compile
 		// for the current build target.
-		if !ctx.Config().KatiEnabled() || !shouldSkipAndroidMkProcessing(ctx, a) {
-			allCheckbuildFiles = append(allCheckbuildFiles, checkBuilds...)
+		if (!ctx.Config().KatiEnabled() || !shouldSkipAndroidMkProcessing(ctx, a)) && !uncheckedModule && checkbuildTarget != nil {
+			allCheckbuildTargets = append(allCheckbuildTargets, checkbuildTarget)
 		}
 	})
 
@@ -1585,11 +1602,10 @@ func (m *ModuleBase) generateModuleTarget(ctx *moduleContext) {
 		deps = append(deps, info.InstallTarget)
 	}
 
-	if len(allCheckbuildFiles) > 0 {
+	if len(allCheckbuildTargets) > 0 {
 		name := namespacePrefix + ctx.ModuleName() + "-checkbuild"
-		ctx.Phony(name, allCheckbuildFiles...)
-		info.CheckbuildTarget = PathForPhony(ctx, name)
-		deps = append(deps, info.CheckbuildTarget)
+		ctx.Phony(name, allCheckbuildTargets...)
+		deps = append(deps, PathForPhony(ctx, name))
 	}
 
 	if len(deps) > 0 {
@@ -1706,9 +1722,11 @@ func (m *ModuleBase) archModuleContextFactory(ctx archModuleContextFactoryContex
 }
 
 type InstallFilesInfo struct {
-	InstallFiles    InstallPaths
-	CheckbuildFiles Paths
-	PackagingSpecs  []PackagingSpec
+	InstallFiles     InstallPaths
+	CheckbuildFiles  Paths
+	CheckbuildTarget Path
+	UncheckedModule  bool
+	PackagingSpecs   []PackagingSpec
 	// katiInstalls tracks the install rules that were created by Soong but are being exported
 	// to Make to convert to ninja rules so that Make can add additional dependencies.
 	KatiInstalls             katiInstalls
@@ -1945,9 +1963,13 @@ func (m *ModuleBase) GenerateBuildActions(blueprintCtx blueprint.ModuleContext)
 			return
 		}
 
+		m.generateVariantTarget(ctx)
+
 		installFiles.LicenseMetadataFile = ctx.licenseMetadataFile
 		installFiles.InstallFiles = ctx.installFiles
 		installFiles.CheckbuildFiles = ctx.checkbuildFiles
+		installFiles.CheckbuildTarget = ctx.checkbuildTarget
+		installFiles.UncheckedModule = ctx.uncheckedModule
 		installFiles.PackagingSpecs = ctx.packagingSpecs
 		installFiles.KatiInstalls = ctx.katiInstalls
 		installFiles.KatiSymlinks = ctx.katiSymlinks