func()

in pkg/cmd/ns.go [106:183]

• 57 lines of code
• 15 McCabe index (conditional complexity)

func (o *NamespaceOptions) Complete(cmd *cobra.Command, args []string) error {
	o.args = args

	var err error
	o.rawConfig, err = o.configFlags.ToRawKubeConfigLoader().RawConfig()
	if err != nil {
		return err
	}

	o.userSpecifiedNamespace, err = cmd.Flags().GetString("namespace")
	if err != nil {
		return err
	}
	if len(args) > 0 {
		if len(o.userSpecifiedNamespace) > 0 {
			return fmt.Errorf("cannot specify both a --namespace value and a new namespace argument")
		}

		o.userSpecifiedNamespace = args[0]
	}

	// if no namespace argument or flag value was specified, then there
	// is no need to generate a resulting context
	if len(o.userSpecifiedNamespace) == 0 {
		return nil
	}

	o.userSpecifiedContext, err = cmd.Flags().GetString("context")
	if err != nil {
		return err
	}

	o.userSpecifiedCluster, err = cmd.Flags().GetString("cluster")
	if err != nil {
		return err
	}

	o.userSpecifiedAuthInfo, err = cmd.Flags().GetString("user")
	if err != nil {
		return err
	}

	currentContext, exists := o.rawConfig.Contexts[o.rawConfig.CurrentContext]
	if !exists {
		return errNoContext
	}

	o.resultingContext = api.NewContext()
	o.resultingContext.Cluster = currentContext.Cluster
	o.resultingContext.AuthInfo = currentContext.AuthInfo

	// if a target context is explicitly provided by the user,
	// use that as our reference for the final, resulting context
	if len(o.userSpecifiedContext) > 0 {
		o.resultingContextName = o.userSpecifiedContext
		if userCtx, exists := o.rawConfig.Contexts[o.userSpecifiedContext]; exists {
			o.resultingContext = userCtx.DeepCopy()
		}
	}

	// override context info with user provided values
	o.resultingContext.Namespace = o.userSpecifiedNamespace

	if len(o.userSpecifiedCluster) > 0 {
		o.resultingContext.Cluster = o.userSpecifiedCluster
	}
	if len(o.userSpecifiedAuthInfo) > 0 {
		o.resultingContext.AuthInfo = o.userSpecifiedAuthInfo
	}

	// generate a unique context name based on its new values if
	// user did not explicitly request a context by name
	if len(o.userSpecifiedContext) == 0 {
		o.resultingContextName = generateContextName(o.resultingContext)
	}

	return nil
}