Fix `go vet` issues

Test: go vet ./...
Change-Id: Ifb936ccc5e2b5a2c3fcbbbcb54f680e2973ea1b3

android/config_test.go

@@ -50,7 +50,7 @@ func validateConfigAnnotations(configurable jsonConfigurable) (err error) {
 }
 
 type configType struct {
-	populateMe *bool `json:"omitempty"`
+	PopulateMe *bool `json:"omitempty"`
 }
 
 func (c *configType) SetDefaultConfig() {
@@ -60,7 +60,7 @@ func (c *configType) SetDefaultConfig() {
 func TestValidateConfigAnnotations(t *testing.T) {
 	config := configType{}
 	err := validateConfigAnnotations(&config)
-	expectedError := `Field configType.populateMe has tag json:"omitempty" which specifies to change its json field name to "omitempty".
+	expectedError := `Field configType.PopulateMe has tag json:"omitempty" which specifies to change its json field name to "omitempty".
 Did you mean to use an annotation of ",omitempty"?
 (Alternatively, to change the json name of the field, rename the field in source instead.)`
 	if err.Error() != expectedError {

android/makevars.go

@@ -153,7 +153,7 @@ func (s *makeVarsSingleton) GenerateBuildActions(ctx SingletonContext) {
 func (s *makeVarsSingleton) writeVars(vars []makeVarsVariable) []byte {
 	buf := &bytes.Buffer{}
 
-	fmt.Fprintln(buf, `# Autogenerated file
+	fmt.Fprint(buf, `# Autogenerated file
 
 # Compares SOONG_$(1) against $(1), and warns if they are not equal.
 #
@@ -201,7 +201,7 @@ my_check_failed := false
 		fmt.Fprintf(buf, "$(eval $(call soong-compare-var,%s,%s,my_check_failed := true))\n\n", v.name, sort)
 	}
 
-	fmt.Fprintln(buf, `
+	fmt.Fprint(buf, `
 ifneq ($(my_check_failed),false)
   $(error Soong variable check failed)
 endif

android/namespace.go

@@ -94,10 +94,8 @@ type NameResolver struct {
 }
 
 func NewNameResolver(namespaceExportFilter func(*Namespace) bool) *NameResolver {
-	namespacesByDir := sync.Map{}
-
 	r := &NameResolver{
-		namespacesByDir:       namespacesByDir,
+		namespacesByDir:       sync.Map{},
 		namespaceExportFilter: namespaceExportFilter,
 	}
 	r.rootNamespace = r.newNamespace(".")

bpfix/bpfix/bpfix.go

@@ -141,7 +141,6 @@ func (f *Fixer) Fix(config FixRequest) (*parser.File, error) {
 		i++
 		if i >= maxNumIterations {
 			return nil, fmt.Errorf("Applied fixes %d times and yet the tree continued to change. Is there an infinite loop?", i)
-			break
 		}
 	}
 	return f.tree, err

cc/cc.go

@@ -991,33 +991,41 @@ func (c *Module) DepsMutator(actx android.BottomUpMutatorContext) {
 		actx.AddVariationDependencies(nil, depTag, lib)
 	}
 
-	actx.AddVariationDependencies([]blueprint.Variation{{"link", "static"}}, wholeStaticDepTag,
-		deps.WholeStaticLibs...)
+	actx.AddVariationDependencies([]blueprint.Variation{
+		{Mutator: "link", Variation: "static"},
+	}, wholeStaticDepTag, deps.WholeStaticLibs...)
 
 	for _, lib := range deps.StaticLibs {
 		depTag := staticDepTag
 		if inList(lib, deps.ReexportStaticLibHeaders) {
 			depTag = staticExportDepTag
 		}
-		actx.AddVariationDependencies([]blueprint.Variation{{"link", "static"}}, depTag, lib)
+		actx.AddVariationDependencies([]blueprint.Variation{
+			{Mutator: "link", Variation: "static"},
+		}, depTag, lib)
 	}
 
-	actx.AddVariationDependencies([]blueprint.Variation{{"link", "static"}}, lateStaticDepTag,
-		deps.LateStaticLibs...)
+	actx.AddVariationDependencies([]blueprint.Variation{
+		{Mutator: "link", Variation: "static"},
+	}, lateStaticDepTag, deps.LateStaticLibs...)
 
 	for _, lib := range deps.SharedLibs {
 		depTag := sharedDepTag
 		if inList(lib, deps.ReexportSharedLibHeaders) {
 			depTag = sharedExportDepTag
 		}
-		actx.AddVariationDependencies([]blueprint.Variation{{"link", "shared"}}, depTag, lib)
+		actx.AddVariationDependencies([]blueprint.Variation{
+			{Mutator: "link", Variation: "shared"},
+		}, depTag, lib)
 	}
 
-	actx.AddVariationDependencies([]blueprint.Variation{{"link", "shared"}}, lateSharedDepTag,
-		deps.LateSharedLibs...)
+	actx.AddVariationDependencies([]blueprint.Variation{
+		{Mutator: "link", Variation: "shared"},
+	}, lateSharedDepTag, deps.LateSharedLibs...)
 
-	actx.AddVariationDependencies([]blueprint.Variation{{"link", "shared"}}, runtimeDepTag,
-		deps.RuntimeLibs...)
+	actx.AddVariationDependencies([]blueprint.Variation{
+		{Mutator: "link", Variation: "shared"},
+	}, runtimeDepTag, deps.RuntimeLibs...)
 
 	actx.AddDependency(c, genSourceDepTag, deps.GeneratedSources...)
 
@@ -1043,9 +1051,13 @@ func (c *Module) DepsMutator(actx android.BottomUpMutatorContext) {
 
 	version := ctx.sdkVersion()
 	actx.AddVariationDependencies([]blueprint.Variation{
-		{"ndk_api", version}, {"link", "shared"}}, ndkStubDepTag, variantNdkLibs...)
+		{Mutator: "ndk_api", Variation: version},
+		{Mutator: "link", Variation: "shared"},
+	}, ndkStubDepTag, variantNdkLibs...)
 	actx.AddVariationDependencies([]blueprint.Variation{
-		{"ndk_api", version}, {"link", "shared"}}, ndkLateStubDepTag, variantLateNdkLibs...)
+		{Mutator: "ndk_api", Variation: version},
+		{Mutator: "link", Variation: "shared"},
+	}, ndkLateStubDepTag, variantLateNdkLibs...)
 
 	if vndkdep := c.vndkdep; vndkdep != nil {
 		if vndkdep.isVndkExt() {
@@ -1054,8 +1066,9 @@ func (c *Module) DepsMutator(actx android.BottomUpMutatorContext) {
 				baseModuleMode = coreMode
 			}
 			actx.AddVariationDependencies([]blueprint.Variation{
-				{"image", baseModuleMode}, {"link", "shared"}}, vndkExtDepTag,
-				vndkdep.getVndkExtendsModuleName())
+				{Mutator: "image", Variation: baseModuleMode},
+				{Mutator: "link", Variation: "shared"},
+			}, vndkExtDepTag, vndkdep.getVndkExtendsModuleName())
 		}
 	}
 }

cc/compiler.go

@@ -73,7 +73,7 @@ type BaseCompilerProperties struct {
 
 	// list of directories relative to the Blueprints file that will
 	// be added to the include path using -I
-	Local_include_dirs []string `android:"arch_variant,variant_prepend",`
+	Local_include_dirs []string `android:"arch_variant,variant_prepend"`
 
 	// list of generated sources to compile. These are the names of gensrcs or
 	// genrule modules.

cc/config/toolchain.go

@@ -36,7 +36,6 @@ func FindToolchain(os android.OsType, arch android.Arch) Toolchain {
 	factory := toolchainFactories[os][arch.ArchType]
 	if factory == nil {
 		panic(fmt.Errorf("Toolchain not found for %s arch %q", os.String(), arch.String()))
-		return nil
 	}
 	return factory(arch)
 }

cc/test_data_test.go

@@ -15,7 +15,6 @@
 package cc
 
 import (
-	"fmt"
 	"io/ioutil"
 	"os"
 	"path/filepath"
@@ -154,7 +153,7 @@ func TestDataTests(t *testing.T) {
 				path := filepath.Join(test.data[i].path, test.data[i].file)
 				if test.data[i].file != got[i].Rel() ||
 					path != got[i].String() {
-					fmt.Errorf("expected %s:%s got %s:%s",
+					t.Errorf("expected %s:%s got %s:%s",
 						path, test.data[i].file,
 						got[i].String(), got[i].Rel())
 				}

cmd/multiproduct_kati/main.go

@@ -159,7 +159,7 @@ func main() {
 		stat.Finish()
 	})
 
-	buildCtx := build.Context{&build.ContextImpl{
+	buildCtx := build.Context{ContextImpl: &build.ContextImpl{
 		Context: ctx,
 		Logger:  log,
 		Tracer:  trace,
@@ -297,7 +297,7 @@ func main() {
 			productLog := logger.New(f)
 			productLog.SetOutput(filepath.Join(productLogDir, "soong.log"))
 
-			productCtx := build.Context{&build.ContextImpl{
+			productCtx := build.Context{ContextImpl: &build.ContextImpl{
 				Context: ctx,
 				Logger:  productLog,
 				Tracer:  trace,

cmd/soong_ui/main.go

@@ -84,7 +84,7 @@ func main() {
 		stat.Finish()
 	})
 
-	buildCtx := build.Context{&build.ContextImpl{
+	buildCtx := build.Context{ContextImpl: &build.ContextImpl{
 		Context: ctx,
 		Logger:  log,
 		Tracer:  trace,

finder/fs/fs.go

@@ -243,7 +243,6 @@ func (m *MockFs) followLinks(path string, followLastLink bool, count int) (canon
 	if parentPath == path {
 		err = fmt.Errorf("Internal error: %v yields itself as a parent", path)
 		panic(err.Error())
-		return "", fmt.Errorf("Internal error: %v yields itself as a parent", path)
 	}
 
 	parentPath, err = m.followLinks(parentPath, true, count)

genrule/genrule.go

@@ -142,7 +142,7 @@ func (g *Module) DepsMutator(ctx android.BottomUpMutatorContext) {
 	if g, ok := ctx.Module().(*Module); ok {
 		if len(g.properties.Tools) > 0 {
 			ctx.AddFarVariationDependencies([]blueprint.Variation{
-				{"arch", ctx.Config().BuildOsVariant},
+				{Mutator: "arch", Variation: ctx.Config().BuildOsVariant},
 			}, hostToolDepTag, g.properties.Tools...)
 		}
 	}

java/java.go

@@ -574,7 +574,7 @@ func (j *Module) deps(ctx android.BottomUpMutatorContext) {
 	ctx.AddDependency(ctx.Module(), libTag, j.properties.Libs...)
 	ctx.AddDependency(ctx.Module(), staticLibTag, j.properties.Static_libs...)
 	ctx.AddFarVariationDependencies([]blueprint.Variation{
-		{"arch", ctx.Config().BuildOsCommonVariant},
+		{Mutator: "arch", Variation: ctx.Config().BuildOsCommonVariant},
 	}, annoTag, j.properties.Annotation_processors...)
 	android.ExtractSourcesDeps(ctx, j.properties.Srcs)
 	android.ExtractSourcesDeps(ctx, j.properties.Exclude_srcs)

python/python.go

@@ -306,7 +306,7 @@ func (p *Module) DepsMutator(ctx android.BottomUpMutatorContext) {
 		if p.bootstrapper != nil && p.isEmbeddedLauncherEnabled(pyVersion2) {
 			ctx.AddVariationDependencies(nil, pythonLibTag, "py2-stdlib")
 			ctx.AddFarVariationDependencies([]blueprint.Variation{
-				{"arch", ctx.Target().String()},
+				{Mutator: "arch", Variation: ctx.Target().String()},
 			}, launcherTag, "py2-launcher")
 		}
 

ui/build/environment.go

@@ -134,7 +134,7 @@ func (e *Environment) appendFromKati(reader io.Reader) error {
 		if cmd[0] == "unset" {
 			str, ok := singleUnquote(cmd[1])
 			if !ok {
-				fmt.Errorf("Failed to unquote kati line: %q", text)
+				return fmt.Errorf("Failed to unquote kati line: %q", text)
 			}
 			e.Unset(str)
 		} else if cmd[0] == "export" {

ui/status/ninja.go

@@ -43,7 +43,7 @@ func NinjaReader(ctx logger.Logger, status ToolStatus, fifo string) {
 func ninjaReader(status ToolStatus, fifo string) {
 	f, err := os.Open(fifo)
 	if err != nil {
-		status.Error(fmt.Sprintf("Failed to open fifo:", err))
+		status.Error(fmt.Sprintf("Failed to open fifo: %v", err))
 	}
 	defer f.Close()