return nil, err
	}
	c.envoy = envoyDump
	c.w = w
	c.context = 7
	c.location = "Local" // the time.Location for formatting time.Time instances
	return c, nil
}

// Diff prints a diff between Istiod and Envoy to the passed writer
func (c *Comparator) Diff() error {
	if err := c.ClusterDiff(); err != nil {
		return err
	}
	if err := c.ListenerDiff(); err != nil {
		return err
	}
	return c.RouteDiff()
}

func ManifestCmd(ctx cli.Context) *cobra.Command {
	mc := &cobra.Command{
		Use:   "manifest",
		Short: "Commands related to Istio manifests",
		Long:  "The manifest command generates and diffs Istio manifests.",
	}

	mgcArgs := &ManifestGenerateArgs{}
	mdcArgs := &manifestDiffArgs{}

	args := &RootArgs{}

	mgc := ManifestGenerateCmd(ctx, args, mgcArgs)
	mdc := manifestDiffCmd(mdcArgs)

func ProfileCmd(_ cli.Context) *cobra.Command {
	pc := &cobra.Command{
		Use:   "profile",
		Short: "Commands related to Istio configuration profiles",
		Long:  "The profile command lists, dumps or diffs Istio configuration profiles.",
		Example: "istioctl profile list\n" +
			"istioctl install --set profile=demo  # Use a profile from the list",
	}

	pdArgs := &profileDumpArgs{}
	plArgs := &profileListArgs{}

	return &cobra.Command{
		Use:   "diff <profile|file1.yaml> <profile|file2.yaml>",
		Short: "Diffs two Istio configuration profiles",
		Long:  "The diff subcommand displays the differences between two Istio configuration profiles.",
		Example: `  # Profile diff by providing yaml files
  istioctl profile diff manifests/profiles/default.yaml manifests/profiles/demo.yaml

  # Profile diff by providing a profile name

}

func manifestDiffCmd(diffArgs *manifestDiffArgs) *cobra.Command {
	cmd := &cobra.Command{
		Use:   "diff <file|dir> <file|dir>",
		Short: "Compare manifests and generate diff",
		Long: "The diff subcommand compares manifests from two files or directories. The output is a list of\n" +
			"changed paths with the value changes shown as OLD-VALUE -> NEW-VALUE.\n" +

func TestProfileDiff(t *testing.T) {
	cases := []profileDiffTestcase{
		{
			args:       "profile diff demo default --unknown-flag",
			shouldFail: true,
		},
		{
			args:       "profile diff demo",
			shouldFail: true,
		},
		{
			args:       "profile diff",
			shouldFail: true,
		},
		{
			args:       fmt.Sprintf("profile diff default unknown-profile --manifests %s", snapshotCharts),
			shouldFail: true,
		},
		{

		if err != nil {
			return err
		}
		istiodBytes.WriteString(istiod)
	}
	diff := difflib.UnifiedDiff{
		FromFile: "Istiod Clusters",
		A:        difflib.SplitLines(istiodBytes.String()),
		ToFile:   "Envoy Clusters",
		B:        difflib.SplitLines(envoyBytes.String()),
		Context:  c.context,
	}
	text, err := difflib.GetUnifiedDiffString(diff)
	if err != nil {
		return err
	}
	if text != "" {

		if err != nil {
			return err
		}
		istiodBytes.WriteString(istiod)
	}
	diff := difflib.UnifiedDiff{
		FromFile: "Istiod Listeners",
		A:        difflib.SplitLines(istiodBytes.String()),
		ToFile:   "Envoy Listeners",
		B:        difflib.SplitLines(envoyBytes.String()),
		Context:  c.context,
	}
	text, err := difflib.GetUnifiedDiffString(diff)
	if err != nil {
		return err
	}
	if text != "" {

`,
		Example: `  # Retrieve sync status for all Envoys in a mesh
  istioctl proxy-status

  # Retrieve sync status for Envoys in a specific namespace
  istioctl proxy-status --namespace foo

  # Retrieve sync diff for a single Envoy and Istiod
  istioctl proxy-status istio-egressgateway-59585c5b9c-ndc59.istio-system

  # SECURITY OPTIONS

  # Retrieve proxy status information directly from the control plane, using token security

	var stackDiff []string
	for _, g := range pickRelevantGoroutines() {
		// Identify the Go routines those were not present in the initial snapshot.
		// In other words a stack diff.
		if !initialSnapShot.relevantRoutines[g] {
			stackDiff = append(stackDiff, g)
		}
	}
	return stackDiff
}

// DetectLeak - Creates a snapshot of runtime stack and compares it with the initial stack snapshot.