support different filenames for kustomization file

pkg/commands/build/build.go

@@ -67,7 +67,7 @@ func NewCmdBuild(
 
 	cmd := &cobra.Command{
 		Use:          "build [path]",
-		Short:        "Print current configuration per contents of " + constants.KustomizationFileName,
+		Short:        "Print current configuration per contents of " + constants.KustomizationFileNames[0],
 		Example:      examples,
 		SilenceUsage: true,
 		RunE: func(cmd *cobra.Command, args []string) error {
@@ -88,7 +88,7 @@ func NewCmdBuild(
 // Validate validates build command.
 func (o *BuildOptions) Validate(args []string) error {
 	if len(args) > 1 {
-		return errors.New("specify one path to " + constants.KustomizationFileName)
+		return errors.New("specify one path to " + constants.KustomizationFileNames[0])
 	}
 	if len(args) == 0 {
 		o.kustomizationPath = "./"

pkg/commands/build/build_test.go

@@ -33,7 +33,7 @@ func TestBuildValidate(t *testing.T) {
 		{"file", []string{"beans"}, "beans", ""},
 		{"path", []string{"a/b/c"}, "a/b/c", ""},
 		{"path", []string{"too", "many"},
-			"", "specify one path to " + constants.KustomizationFileName},
+			"", "specify one path to " + constants.KustomizationFileNames[0]},
 	}
 	for _, mycase := range cases {
 		opts := BuildOptions{}

pkg/commands/edit/add/addmetadata.go

@@ -59,7 +59,7 @@ func newCmdAddAnnotation(fSys fs.FileSystem, v func(map[string]string) error) *c
 	o.mapValidator = v
 	cmd := &cobra.Command{
 		Use:   "annotation",
-		Short: "Adds one or more commonAnnotations to " + constants.KustomizationFileName,
+		Short: "Adds one or more commonAnnotations to " + constants.KustomizationFileNames[0],
 		Example: `
 		add annotation {annotationKey1:annotationValue1},{annotationKey2:annotationValue2}`,
 		RunE: func(cmd *cobra.Command, args []string) error {
@@ -76,7 +76,7 @@ func newCmdAddLabel(fSys fs.FileSystem, v func(map[string]string) error) *cobra.
 	o.mapValidator = v
 	cmd := &cobra.Command{
 		Use:   "label",
-		Short: "Adds one or more commonLabels to " + constants.KustomizationFileName,
+		Short: "Adds one or more commonLabels to " + constants.KustomizationFileNames[0],
 		Example: `
 		add label {labelKey1:labelValue1},{labelKey2:labelValue2}`,
 		RunE: func(cmd *cobra.Command, args []string) error {

pkg/commands/kustfile/kustomizationfile.go

@@ -129,12 +129,22 @@ func NewKustomizationFile(fSys fs.FileSystem) (*kustomizationFile, error) { // n
 }
 
 func (mf *kustomizationFile) validate() error {
-	if mf.fSys.Exists(constants.KustomizationFileName) {
-		mf.path = constants.KustomizationFileName
-	} else if mf.fSys.Exists(constants.SecondaryKustomizationFileName) {
-		mf.path = constants.SecondaryKustomizationFileName
-	} else {
-		return fmt.Errorf("Missing kustomization file '%s'.\n", constants.KustomizationFileName)
+	match := 0
+	var path []string
+	for _, kfilename := range constants.KustomizationFileNames {
+		if mf.fSys.Exists(kfilename) {
+			match += 1
+			path = append(path, kfilename)
+		}
+	}
+
+	switch match {
+	case 0:
+		return fmt.Errorf("Missing kustomization file '%s'.\n", constants.KustomizationFileNames[0])
+	case 1:
+		mf.path = path[0]
+	default:
+		return fmt.Errorf("Found multiple kustomization file: %v\n", path)
 	}
 
 	if mf.fSys.IsDir(mf.path) {

pkg/commands/kustfile/kustomizationfile_test.go

@@ -159,12 +159,12 @@ configMapGenerator:
   name: my-configmap
 `
 	fakeFS := fs.MakeFakeFS()
-	fakeFS.WriteFile(constants.SecondaryKustomizationFileName, []byte(kcontent))
+	fakeFS.WriteFile(constants.KustomizationFileNames[1], []byte(kcontent))
 	k, err := NewKustomizationFile(fakeFS)
 	if err != nil {
 		t.Fatalf("Unexpected Error: %v", err)
 	}
-	if k.path != constants.SecondaryKustomizationFileName {
+	if k.path != constants.KustomizationFileNames[1] {
 		t.Fatalf("Load incorrect file path %s", k.path)
 	}
 }