Strict updatability linting against dependencies.

Propagate strict_updatability_linting to transitive dependencies using a
top-down mutator.

Test: lint_test.go
Bug: 182349282
Change-Id: Ifc9e58f1a597e3c7725ee49b4027afb6f42f45cb

java/java.go

@@ -1222,6 +1222,13 @@ func (j *Import) LintDepSets() LintDepSets {
 	return LintDepSets{}
 }
 
+func (j *Import) getStrictUpdatabilityLinting() bool {
+	return false
+}
+
+func (j *Import) setStrictUpdatabilityLinting(bool) {
+}
+
 func (j *Import) DepsMutator(ctx android.BottomUpMutatorContext) {
 	ctx.AddVariationDependencies(nil, libTag, j.properties.Libs...)
 
@@ -1545,6 +1552,13 @@ func (j *DexImport) IsInstallable() bool {
 	return true
 }
 
+func (j *DexImport) getStrictUpdatabilityLinting() bool {
+	return false
+}
+
+func (j *DexImport) setStrictUpdatabilityLinting(bool) {
+}
+
 func (j *DexImport) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	if len(j.properties.Jars) != 1 {
 		ctx.PropertyErrorf("jars", "exactly one jar must be provided")

java/lint.go

@@ -103,6 +103,10 @@ type lintOutputsIntf interface {
 
 type lintDepSetsIntf interface {
 	LintDepSets() LintDepSets
+
+	// Methods used to propagate strict_updatability_linting values.
+	getStrictUpdatabilityLinting() bool
+	setStrictUpdatabilityLinting(bool)
 }
 
 type LintDepSets struct {
@@ -153,6 +157,14 @@ func (l *linter) LintDepSets() LintDepSets {
 	return l.outputs.depSets
 }
 
+func (l *linter) getStrictUpdatabilityLinting() bool {
+	return BoolDefault(l.properties.Lint.Strict_updatability_linting, false)
+}
+
+func (l *linter) setStrictUpdatabilityLinting(strictLinting bool) {
+	l.properties.Lint.Strict_updatability_linting = &strictLinting
+}
+
 var _ lintDepSetsIntf = (*linter)(nil)
 
 var _ lintOutputsIntf = (*linter)(nil)
@@ -260,7 +272,7 @@ func (l *linter) writeLintProjectXML(ctx android.ModuleContext, rule *android.Ru
 	cmd.FlagForEachArg("--error_check ", l.properties.Lint.Error_checks)
 	cmd.FlagForEachArg("--fatal_check ", l.properties.Lint.Fatal_checks)
 
-	if BoolDefault(l.properties.Lint.Strict_updatability_linting, false) {
+	if l.getStrictUpdatabilityLinting() {
 		// Verify the module does not baseline issues that endanger safe updatability.
 		if baselinePath := l.getBaselineFilepath(ctx); baselinePath.Valid() {
 			cmd.FlagWithInput("--baseline ", baselinePath.Path())
@@ -586,6 +598,14 @@ var _ android.SingletonMakeVarsProvider = (*lintSingleton)(nil)
 func init() {
 	android.RegisterSingletonType("lint",
 		func() android.Singleton { return &lintSingleton{} })
+
+	registerLintBuildComponents(android.InitRegistrationContext)
+}
+
+func registerLintBuildComponents(ctx android.RegistrationContext) {
+	ctx.PostDepsMutators(func(ctx android.RegisterMutatorsContext) {
+		ctx.TopDown("enforce_strict_updatability_linting", enforceStrictUpdatabilityLintingMutator).Parallel()
+	})
 }
 
 func lintZip(ctx android.BuilderContext, paths android.Paths, outputPath android.WritablePath) {
@@ -604,3 +624,15 @@ func lintZip(ctx android.BuilderContext, paths android.Paths, outputPath android
 
 	rule.Build(outputPath.Base(), outputPath.Base())
 }
+
+// Enforce the strict updatability linting to all applicable transitive dependencies.
+func enforceStrictUpdatabilityLintingMutator(ctx android.TopDownMutatorContext) {
+	m := ctx.Module()
+	if d, ok := m.(lintDepSetsIntf); ok && d.getStrictUpdatabilityLinting() {
+		ctx.VisitDirectDepsWithTag(staticLibTag, func(d android.Module) {
+			if a, ok := d.(lintDepSetsIntf); ok {
+				a.setStrictUpdatabilityLinting(true)
+			}
+		})
+	}
+}

java/lint_test.go

@@ -181,12 +181,22 @@ func TestJavaLintStrictUpdatabilityLinting(t *testing.T) {
 			srcs: [
 				"a.java",
 			],
+			static_libs: ["bar"],
 			min_sdk_version: "29",
 			sdk_version: "current",
 			lint: {
 				strict_updatability_linting: true,
 			},
 		}
+
+		java_library {
+			name: "bar",
+			srcs: [
+				"a.java",
+			],
+			min_sdk_version: "29",
+			sdk_version: "current",
+		}
 	`
 	fs := android.MockFS{
 		"lint-baseline.xml": nil,
@@ -201,4 +211,11 @@ func TestJavaLintStrictUpdatabilityLinting(t *testing.T) {
 		"--baseline lint-baseline.xml --disallowed_issues NewApi") {
 		t.Error("did not restrict baselining NewApi")
 	}
+
+	bar := result.ModuleForTests("bar", "android_common")
+	sboxProto = android.RuleBuilderSboxProtoForTests(t, bar.Output("lint.sbox.textproto"))
+	if !strings.Contains(*sboxProto.Commands[0].Command,
+		"--baseline lint-baseline.xml --disallowed_issues NewApi") {
+		t.Error("did not restrict baselining NewApi")
+	}
 }

java/sdk_library.go

@@ -2195,6 +2195,20 @@ func (module *SdkLibraryImport) LintDepSets() LintDepSets {
 	}
 }
 
+func (module *SdkLibraryImport) getStrictUpdatabilityLinting() bool {
+	if module.implLibraryModule == nil {
+		return false
+	} else {
+		return module.implLibraryModule.getStrictUpdatabilityLinting()
+	}
+}
+
+func (module *SdkLibraryImport) setStrictUpdatabilityLinting(strictLinting bool) {
+	if module.implLibraryModule != nil {
+		module.implLibraryModule.setStrictUpdatabilityLinting(strictLinting)
+	}
+}
+
 // to satisfy apex.javaDependency interface
 func (module *SdkLibraryImport) Stem() string {
 	return module.BaseModuleName()

java/testing.go

@@ -245,6 +245,7 @@ func registerRequiredBuildComponentsForTest(ctx android.RegistrationContext) {
 	RegisterStubsBuildComponents(ctx)
 	RegisterSystemModulesBuildComponents(ctx)
 	registerSystemserverClasspathBuildComponents(ctx)
+	registerLintBuildComponents(ctx)
 }
 
 // gatherRequiredDepsForTest gathers the module definitions used by