add normalize function to global FlagSet

cmd/cloud-controller-manager/main.go

@@ -48,6 +48,8 @@ import (
 func main() {
 	rand.Seed(time.Now().UnixNano())
 
+	pflag.CommandLine.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
+
 	ccmOptions, err := options.NewCloudControllerManagerOptions()
 	if err != nil {
 		klog.Fatalf("unable to initialize command options: %v", err)
@@ -70,12 +72,6 @@ func main() {
 
 	command := app.NewCloudControllerManagerCommand(ccmOptions, cloudInitializer, controllerInitializers, fss, wait.NeverStop)
 
-	// TODO: once we switch everything over to Cobra commands, we can go back to calling
-	// utilflag.InitFlags() (by removing its pflag.Parse() call). For now, we have to set the
-	// normalize func and add the go flag set by hand.
-	// Here is an sample
-	pflag.CommandLine.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
-	// utilflag.InitFlags()
 	logs.InitLogs()
 	defer logs.FlushLogs()
 

cmd/kube-apiserver/apiserver.go

@@ -23,6 +23,9 @@ import (
 	"os"
 	"time"
 
+	"github.com/spf13/pflag"
+
+	cliflag "k8s.io/component-base/cli/flag"
 	"k8s.io/component-base/logs"
 	_ "k8s.io/component-base/metrics/prometheus/clientgo" // load all the prometheus client-go plugins
 	_ "k8s.io/component-base/metrics/prometheus/version"  // for version metric registration
@@ -32,12 +35,10 @@ import (
 func main() {
 	rand.Seed(time.Now().UnixNano())
 
+	pflag.CommandLine.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
+
 	command := app.NewAPIServerCommand()
 
-	// TODO: once we switch everything over to Cobra commands, we can go back to calling
-	// utilflag.InitFlags() (by removing its pflag.Parse() call). For now, we have to set the
-	// normalize func and add the go flag set by hand.
-	// utilflag.InitFlags()
 	logs.InitLogs()
 	defer logs.FlushLogs()
 

cmd/kube-controller-manager/controller-manager.go

@@ -25,6 +25,9 @@ import (
 	"os"
 	"time"
 
+	"github.com/spf13/pflag"
+
+	cliflag "k8s.io/component-base/cli/flag"
 	"k8s.io/component-base/logs"
 	_ "k8s.io/component-base/metrics/prometheus/clientgo" // load all the prometheus client-go plugin
 	_ "k8s.io/component-base/metrics/prometheus/version"  // for version metric registration
@@ -34,12 +37,10 @@ import (
 func main() {
 	rand.Seed(time.Now().UnixNano())
 
+	pflag.CommandLine.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
+
 	command := app.NewControllerManagerCommand()
 
-	// TODO: once we switch everything over to Cobra commands, we can go back to calling
-	// utilflag.InitFlags() (by removing its pflag.Parse() call). For now, we have to set the
-	// normalize func and add the go flag set by hand.
-	// utilflag.InitFlags()
 	logs.InitLogs()
 	defer logs.FlushLogs()
 

cmd/kube-scheduler/scheduler.go

@@ -33,13 +33,10 @@ import (
 func main() {
 	rand.Seed(time.Now().UnixNano())
 
+	pflag.CommandLine.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
+
 	command := app.NewSchedulerCommand()
 
-	// TODO: once we switch everything over to Cobra commands, we can go back to calling
-	// utilflag.InitFlags() (by removing its pflag.Parse() call). For now, we have to set the
-	// normalize func and add the go flag set by hand.
-	pflag.CommandLine.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
-	// utilflag.InitFlags()
 	logs.InitLogs()
 	defer logs.FlushLogs()
 

staging/src/k8s.io/component-base/cli/flag/sectioned.go

@@ -31,6 +31,8 @@ type NamedFlagSets struct {
 	Order []string
 	// FlagSets stores the flag sets by name.
 	FlagSets map[string]*pflag.FlagSet
+	// NormalizeNameFunc is the normalize function which used to initialize FlagSets created by NamedFlagSets.
+	NormalizeNameFunc func(f *pflag.FlagSet, name string) pflag.NormalizedName
 }
 
 // FlagSet returns the flag set with the given name and adds it to the
@@ -40,7 +42,12 @@ func (nfs *NamedFlagSets) FlagSet(name string) *pflag.FlagSet {
 		nfs.FlagSets = map[string]*pflag.FlagSet{}
 	}
 	if _, ok := nfs.FlagSets[name]; !ok {
-		nfs.FlagSets[name] = pflag.NewFlagSet(name, pflag.ExitOnError)
+		flagSet := pflag.NewFlagSet(name, pflag.ExitOnError)
+		flagSet.SetNormalizeFunc(pflag.CommandLine.GetNormalizeFunc())
+		if nfs.NormalizeNameFunc != nil {
+			flagSet.SetNormalizeFunc(nfs.NormalizeNameFunc)
+		}
+		nfs.FlagSets[name] = flagSet
 		nfs.Order = append(nfs.Order, name)
 	}
 	return nfs.FlagSets[name]