// limitations under the License.

package flag

import (
	"os"
	"strings"
	"time"

	"github.com/spf13/pflag"
)

// Flaggable defines the set of types that can be flags.
// This is not exhaustive; add more as needed
type Flaggable interface {
	string | bool | uint16 | time.Duration
}

var replacer = strings.NewReplacer("-", "_")

// AddBuildFlagsNX adds the -n and -x build flags to the flag set.
func AddBuildFlagsNX(flags *flag.FlagSet) {
	flags.BoolVar(&cfg.BuildN, "n", false, "")
	flags.BoolVar(&cfg.BuildX, "x", false, "")
}

// AddChdirFlag adds the -C flag to the flag set.
func AddChdirFlag(flags *flag.FlagSet) {
	// The usage message is never printed, but it's used in chdir_test.go
	// to identify that the -C flag is from AddChdirFlag.

)

// A PerPackageFlag is a command-line flag implementation (a flag.Value)
// that allows specifying different effective flags for different packages.
// See 'go help build' for more details about per-package flags.
type PerPackageFlag struct {
	raw     string
	present bool
	values  []ppfValue
}

// A ppfValue is a single <pattern>=<flags> per-package flag value.
type ppfValue struct {

// license that can be found in the LICENSE file.

/*
Package flag implements command-line flag parsing.

# Usage

Define flags using [flag.String], [Bool], [Int], etc.

This declares an integer flag, -n, stored in the pointer nFlag, with type *int:

	import "flag"
	var nFlag = flag.Int("n", 1234, "help message for flag n")

If you like, you can bind the flag to a variable using the Var() functions.

	var flagvar int

//
// ParseOne always returns either a non-nil Flag or a non-nil error,
// and always consumes at least one argument (even on error).
//
// Unlike (*flag.FlagSet).Parse, ParseOne does not log its own errors.
func ParseOne(fs *flag.FlagSet, args []string) (f *flag.Flag, remainingArgs []string, err error) {
	// This function is loosely derived from (*flag.FlagSet).parseOne.

	raw, args := args[0], args[1:]
	arg := raw

			// expect form ssa/phase/flag
			// e.g. -d=ssa/generic_cse/time
			// _ in phase name also matches space
			phase := name[4:]
			flag := "debug" // default flag is debug
			if i := strings.Index(phase, "/"); i >= 0 {
				flag = phase[i+1:]
				phase = phase[:i]
			}
			err := f.debugSSA(phase, flag, val, valstring)
			if err != "" {
				log.Fatalf(err)
			}

apiVersion: release-notes/v2
kind: feature
area: istioctl
issue:
  - 51312

releaseNotes:
  - |

	wantedFlag := []string{"help"}
	pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
	logs.AddFlags(pflag.CommandLine)
	normalizeFunc := nfs.GetNormalizeFunc()
	pflag.VisitAll(func(flag *pflag.Flag) {
		if !strings.Contains(flag.Name, "test.") {
			wantedFlag = append(wantedFlag, string(normalizeFunc(nfs, flag.Name)))
		}
	})
	sort.Strings(wantedFlag)

	if !reflect.DeepEqual(wantedFlag, actualFlag) {

func register(global *flag.FlagSet, local *pflag.FlagSet, globalName string) {
	if f := global.Lookup(globalName); f != nil {
		pflagFlag := pflag.PFlagFromGoFlag(f)
		pflagFlag.Name = normalize(pflagFlag.Name)
		local.AddFlag(pflagFlag)
	} else {
		panic(fmt.Sprintf("failed to find flag in global flagset (flag): %s", globalName))
	}
}

	os.Exit(2)
}

var (
	sortOrder = flag.String("sort", "name", "")
	printSize = flag.Bool("size", false, "")
	printType = flag.Bool("type", false, "")

	filePrefix = false
)

func init() {
	flag.Var(nflag(0), "n", "") // alias for -sort address
}

type nflag int

func (nflag) IsBoolFlag() bool {
	return true
}

func (nflag) Set(value string) error {
	if value == "true" {