Function cleanShadowPodAndConfigMap has a Cognitive Complexity of 38 (exceeds 20 allowed). Consider refactoring.

Open

func cleanShadowPodAndConfigMap() {
    var err error
    if opt.Store.Shadow != "" {
        shouldDelWithShared := false
        if opt.Get().Connect.ShareShadow {

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Function GlobalFlags has 100 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func GlobalFlags() []OptionConfig {
    flags := []OptionConfig{
        {
            Target:       "Namespace",
            Alias:        "n",

Function ConnectFlags has 86 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func ConnectFlags() []OptionConfig {
    flags := []OptionConfig{
        {
            Target:      "Mode",
            DefaultValue: util.ConnectModeTun2Socks,

Method Kubernetes.ClusterCidr has a Cognitive Complexity of 30 (exceeds 20 allowed). Consider refactoring.

Open

func (k *Kubernetes) ClusterCidr(namespace string) ([]string, []string) {
    ips := getServiceIps(k.Clientset, namespace)
    log.Debug().Msgf("Found %d IPs", len(ips))
    svcCidr := calculateMinimalIpRange(ips)
    log.Debug().Msgf("Service ips are: %v", ips)

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Function getServiceHosts has a Cognitive Complexity of 30 (exceeds 20 allowed). Consider refactoring.

Open

func getServiceHosts(namespace string, shortDomainOnly bool) (map[string]string, []string) {
    hosts := make(map[string]string)
    podNames := make([]string, 0)
    services, err := cluster.Ins().GetAllServiceInNamespace(namespace)
    if err == nil {

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Function UpdateServiceSelector has a Cognitive Complexity of 30 (exceeds 20 allowed). Consider refactoring.

Open

func UpdateServiceSelector(svcName, namespace string, selector map[string]string) error {
    svc, err := cluster.Ins().GetService(svcName, namespace)
    if err != nil {
        return err
    }

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Function mergeOptions has a Cognitive Complexity of 30 (exceeds 20 allowed). Consider refactoring.

Open

func mergeOptions(opt *DaemonOptions, data []byte) {
    config := make(map[string]map[string]string)
    err := yaml.Unmarshal(data, &config)
    if err != nil {
        log.Warn().Msgf("Invalid config content, skipping ...")

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Function calculateMinimalIpRange has a Cognitive Complexity of 29 (exceeds 20 allowed). Consider refactoring.

Open

func calculateMinimalIpRange(ips []string) []string {
    if opt.Store.Ipv6Cluster == true {
        return calculateMinimalIpv6Range(ips)
    }

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Function HandleMeshedByAutoService has a Cognitive Complexity of 29 (exceeds 20 allowed). Consider refactoring.

Open

func HandleMeshedByAutoService(svc *coreV1.Service, deployment *appV1.Deployment, pod *coreV1.Pod) error {
    // shadow pods, shadow deployments, shadow services
    if deployment != nil {
        return fmt.Errorf("service '%s' is meshed but selecting more than a router pod, cannot auto recover", svc.Name)
    } else if pod == nil {

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Function AutoMesh has 68 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func AutoMesh(svc *coreV1.Service) error {
    // Lock service to avoid conflict, must be first step
    svc, err := general.LockService(svc.Name, opt.Get().Global.Namespace, 0)
    if err != nil {
        return err

Function TidyClusterResources has a Cognitive Complexity of 28 (exceeds 20 allowed). Consider refactoring.

Open

func TidyClusterResources(r *ResourceToClean) {
    log.Info().Msgf("Deleting %d unavailing kt pods", len(r.PodsToDelete))
    for _, name := range r.PodsToDelete {
        err := cluster.Ins().RemovePod(name, opt.Get().Global.Namespace)
        if err != nil {

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Function SetOptions has a Cognitive Complexity of 28 (exceeds 20 allowed). Consider refactoring.

Open

func SetOptions(cmd *cobra.Command, flags *flag.FlagSet, optionStore any, config []OptionConfig) {
    cmd.Long = cmd.Short
    cmd.Flags().SortFlags = false
    cmd.InheritedFlags().SortFlags = false
    flags.SortFlags = false

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Method Kubernetes.tryGetExistingShadows has a Cognitive Complexity of 28 (exceeds 20 allowed). Consider refactoring.

Open

func (k *Kubernetes) tryGetExistingShadows(resourceMeta *ResourceMeta, sshKeyMeta *SSHkeyMeta) (*coreV1.Pod, *util.SSHGenerator, error) {
    var app *appV1.Deployment
    var pod *coreV1.Pod
    if opt.Get().Global.UseShadowDeployment {
        app2, err := k.GetDeployment(resourceMeta.Name, resourceMeta.Namespace)

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Method Kubernetes.ClusterCidr has 63 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func (k *Kubernetes) ClusterCidr(namespace string) ([]string, []string) {
    ips := getServiceIps(k.Clientset, namespace)
    log.Debug().Msgf("Found %d IPs", len(ips))
    svcCidr := calculateMinimalIpRange(ips)
    log.Debug().Msgf("Service ips are: %v", ips)

Function TidyClusterResources has 63 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func TidyClusterResources(r *ResourceToClean) {
    log.Info().Msgf("Deleting %d unavailing kt pods", len(r.PodsToDelete))
    for _, name := range r.PodsToDelete {
        err := cluster.Ins().RemovePod(name, opt.Get().Global.Namespace)
        if err != nil {

Method Cli.SetRoute has 62 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func (s *Cli) SetRoute(ipRange []string, excludeIpRange []string) error {
    var lastErr error
    anyRouteOk := false

    // add by lichp, set ipv6 address

Function combineKubeOpts has 62 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func combineKubeOpts() (err error) {
    var config *clientcmdapi.Config
    if opt.Get().Global.Kubeconfig != ""{
        // if kubeconfig specified, always read from it
        _ = os.Setenv(util.EnvKubeConfig, opt.Get().Global.Kubeconfig)

Function getPodNameAndPort has a Cognitive Complexity of 27 (exceeds 20 allowed). Consider refactoring.

Open

func getPodNameAndPort(serviceName string, remotePort int, namespace string) (string, int, int, error) {
    svc, err := cluster.Ins().GetService(serviceName, namespace)
    if err != nil {
        if k8sErrors.IsNotFound(err) {
            return "", 0, 0, fmt.Errorf("service '%s' is not found in namespace %s", serviceName, namespace)

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Function getDnsAddresses has a Cognitive Complexity of 27 (exceeds 20 allowed). Consider refactoring.

Open

func getDnsAddresses(dnsOrder []string, upstreamDns string, clusterDnsPort int) []string {
    upstreamPattern := fmt.Sprintf("^([cdptu]{3}:)?%s(:[0-9]+)?$", util.DnsOrderUpstream)
    var dnsAddresses []string
    for _, dnsAddr := range dnsOrder {
        if dnsAddr == util.DnsOrderCluster {

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Function Recover has 57 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func Recover(serviceName string) error {
    svc, err := cluster.Ins().GetService(serviceName, opt.Get().Global.Namespace)
    if err != nil {
        log.Error().Err(err).Msgf("Failed to fetch service '%s'", serviceName)
    }