Merge pull request #1467 from richardmarshall/create_fixes

Fixes to create sub-command

pkg/commands/create/create.go

@@ -63,12 +63,12 @@ func NewCmdCreate(fSys fs.FileSystem, uf ifc.KunstructuredFactory) *cobra.Comman
 		"Set the value of the namespace field in the customization file.")
 	c.Flags().StringVar(
 		&opts.annotations,
-		"annotation",
+		"annotations",
 		"",
 		"Add one or more common annotations.")
 	c.Flags().StringVar(
 		&opts.labels,
-		"label",
+		"labels",
 		"",
 		"Add one or more common labels.")
 	c.Flags().StringVar(
@@ -95,11 +95,15 @@ func NewCmdCreate(fSys fs.FileSystem, uf ifc.KunstructuredFactory) *cobra.Comman
 }
 
 func runCreate(opts createFlags, fSys fs.FileSystem, uf ifc.KunstructuredFactory) error {
-	resources, err := util.GlobPatterns(fSys, strings.Split(opts.resources, ","))
-	if err != nil {
-		return err
+	var resources []string
+	var err error
+	if opts.resources != "" {
+		resources, err = util.GlobPatterns(fSys, strings.Split(opts.resources, ","))
+		if err != nil {
+			return err
+		}
 	}
-	if _, err := kustfile.NewKustomizationFile(fSys); err == nil {
+	if _, err = kustfile.NewKustomizationFile(fSys); err == nil {
 		return fmt.Errorf("kustomization file already exists")
 	}
 	if opts.detectResources {

pkg/commands/create/create_test.go

@@ -132,6 +132,12 @@ metadata:
 	fakeFS.WriteFile("/README.md", []byte(`
 # Not a k8s resource
 This file is not a valid kubernetes object.`))
+	fakeFS.WriteFile("/non-k8s.yaml", []byte(`
+# Not a k8s resource
+other: yaml
+foo:
+- bar
+- baz`))
 	fakeFS.Mkdir("/sub")
 	fakeFS.WriteFile("/sub/test.yaml", []byte(`
 apiVersion: v1
@@ -141,6 +147,12 @@ metadata:
 	fakeFS.WriteFile("/sub/README.md", []byte(`
 # Not a k8s resource
 This file in a subdirectory is not a valid kubernetes object.`))
+	fakeFS.WriteFile("/sub/non-k8s.yaml", []byte(`
+# Not a k8s resource
+other: yaml
+foo:
+- bar
+- baz`))
 	fakeFS.Mkdir("/overlay")
 	fakeFS.WriteFile("/overlay/test.yaml", []byte(`
 apiVersion: v1

pkg/commands/util/util.go

@@ -33,6 +33,9 @@ func GlobPatterns(fsys fs.FileSystem, patterns []string) ([]string, error) {
 // `key:value` into a map.
 func ConvertToMap(input string, kind string) (map[string]string, error) {
 	result := make(map[string]string)
+	if input == "" {
+		return result, nil
+	}
 	inputs := strings.Split(input, ",")
 	for _, input := range inputs {
 		c := strings.Index(input, ":")