log.FindScope("default").SetOutputLevel(log.DebugLevel)
	log.Debug("debug log")
	log.Info("info log")
	log.Warn("warn log")
	log.Error("error log")
	// This will error because stdout cannot sync, but the UDS part should sync
	// Ideally we would fail if the UDS part fails but the error library makes it kind of tricky
	_ = log.Sync()

	// Restore os stdout.
	os.Stdout = stdout
	assert.NoError(t, log.Configure(loggingOptions))

	f := filepath.Join(t.TempDir(), "test")
	l, err := NewListener(f)
	if err != nil {
		t.Fatalf("unexpected error %v", err)
	}
	defer l.Close()
	conn, err := connect(f)
	if err != nil {
		t.Fatalf("failed to connect %v", err)
	}
	conn.Close()
}

func connect(socket string) (*grpc.ClientConn, error) {
	var opts []grpc.DialOption

	"strings"
	"text/tabwriter"
)

// SDSWriter takes lists of SecretItem or SecretItemDiff and prints them through supplied output writer
type SDSWriter interface {
	PrintSecretItems([]SecretItem) error
	PrintDiffs([]SecretItemDiff) error
}

type Format int

const (
	JSON Format = iota
	TABULAR
)

// includeConfigType is a flag to indicate whether to include the config type in the output
var includeConfigType bool

}

func NetnsSet(n NetnsFd) error {
	if err := unix.Setns(int(n.Fd()), unix.CLONE_NEWNET); err != nil {
		return fmt.Errorf("Error switching to ns fd %v: %v", n.Fd(), err)
	}
	return nil
}

// inspired by netns.Do() but with an existing fd.
func NetnsDo(fdable NetnsFd, toRun func() error) error {
	containedCall := func() error {
		threadNS, err := netns.GetCurrentNS()
		if err != nil {

func (w *Wrapper) getSection(sectionTypeURL configTypeURL) (*anypb.Any, error) {
	var dumpAny *anypb.Any
	for _, conf := range w.Configs {
		if conf.TypeUrl == string(sectionTypeURL) {
			dumpAny = conf
		}
	}
	if dumpAny == nil {
		return nil, fmt.Errorf("config dump has no configuration type %s", sectionTypeURL)
	}

	return dumpAny, nil
}

	revisions := map[string]*RevisionDescription{}

	// Get a list of control planes which are installed in remote clusters
	// In this case, it is possible that they only have webhooks installed.
	webhooks, err := Webhooks(context.Background(), client)
	if err != nil {
		return nil, fmt.Errorf("error while listing mutating webhooks: %v", err)
	}

package util

import (
	"bytes"
	"errors"
	"os/exec"
	"strings"

	"istio.io/istio/pkg/log"
)

type ExecList struct {
	Cmd  string
	Args []string
}

func NewExec(cmd string, args []string) *ExecList {
	return &ExecList{
		Cmd:  cmd,
		Args: args,
	}
}

func ExecuteOutput(cmd string, args ...string) (string, error) {
	externalCommand := exec.Command(cmd, args...)

			"removed.",
		Args: func(cmd *cobra.Command, args []string) error {
			if len(args) != 2 {
				return fmt.Errorf("diff requires two files or directories")
			}
			return nil
		},
		RunE: func(cmd *cobra.Command, args []string) error {
			var err error
			var equal bool
			if diffArgs.compareDir {
				equal, err = compareManifestsFromDirs(diffArgs.verbose, args[0], args[1],

		logOutput = append(logOutput, render(m, colorize))
	}
	return strings.Join(logOutput, "\n")
}

func printJSON(ms diag.Messages) (string, error) {
	jsonOutput, err := json.MarshalIndent(ms, "", "\t")
	return string(jsonOutput), err
}

func printYAML(ms diag.Messages) (string, error) {
	yamlOutput, err := yaml.Marshal(ms)
	return string(yamlOutput), err
}

// Formatting options for Message
var (

	c := &Comparator{}
	for _, resp := range istiodResponses {
		istiodDump := &configdump.Wrapper{}
		err := json.Unmarshal(resp, istiodDump)
		if err != nil {
			continue
		}
		c.istiod = istiodDump
		break
	}
	if c.istiod == nil {
		return nil, fmt.Errorf("unable to find config dump in Istiod responses")
	}