Add 'kubectl set image'

pkg/kubectl/cmd/label.go

@@ -101,7 +101,7 @@ func NewCmdLabel(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	usage := "Filename, directory, or URL to a file identifying the resource to update the labels"
 	kubectl.AddJsonFilenameFlag(cmd, &options.Filenames, usage)
 	cmdutil.AddRecursiveFlag(cmd, &options.Recursive)
-	cmd.Flags().Bool("dry-run", false, "If true, only print the object that would be sent, without sending it.")
+	cmdutil.AddDryRunFlag(cmd)
 	cmdutil.AddRecordFlag(cmd)
 	cmdutil.AddInclude3rdPartyFlags(cmd)
 
@@ -176,21 +176,9 @@ func labelFunc(obj runtime.Object, overwrite bool, resourceVersion string, label
 }
 
 func RunLabel(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *LabelOptions) error {
-	resources, labelArgs := []string{}, []string{}
-	first := true
-	for _, s := range args {
-		isLabel := strings.Contains(s, "=") || strings.HasSuffix(s, "-")
-		switch {
-		case first && isLabel:
-			first = false
-			fallthrough
-		case !first && isLabel:
-			labelArgs = append(labelArgs, s)
-		case first && !isLabel:
-			resources = append(resources, s)
-		case !first && !isLabel:
-			return cmdutil.UsageError(cmd, "all resources must be specified before label changes: %s", s)
-		}
+	resources, labelArgs, err := cmdutil.GetResourcesAndPairs(args, "label")
+	if err != nil {
+		return err
 	}
 	if len(resources) < 1 && len(options.Filenames) == 0 {
 		return cmdutil.UsageError(cmd, "one or more resources must be specified as <resource> <name> or <resource>/<name>")
@@ -242,7 +230,7 @@ func RunLabel(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []stri
 
 		var outputObj runtime.Object
 		dataChangeMsg := "not labeled"
-		if cmdutil.GetFlagBool(cmd, "dry-run") {
+		if cmdutil.GetDryRunFlag(cmd) {
 			err = labelFunc(info.Object, overwrite, resourceVersion, lbls, remove)
 			if err != nil {
 				return err