Replace bash release helper scripts with Go progam

cmd/gorepomod/internal/repo/protomodule_test.go

@@ -0,0 +1,47 @@
+package repo
+
+import (
+	"testing"
+
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
+	"sigs.k8s.io/kustomize/cmd/gorepomod/internal/misc"
+)
+
+func TestShortName(t *testing.T) {
+	var testCases = map[string]struct {
+		name    misc.ModuleShortName
+		modFile *modfile.File
+	}{
+		"one": {
+			name: misc.ModuleShortName("garage"),
+			modFile: &modfile.File{
+				Module: &modfile.Module{
+					Mod: module.Version{
+						Path:    "gh.com/micheal/garage",
+						Version: "v2.3.4",
+					},
+				},
+			},
+		},
+		"three": {
+			name: misc.ModuleShortName("fruit/yellow/banana"),
+			modFile: &modfile.File{
+				Module: &modfile.Module{
+					Mod: module.Version{
+						Path:    "gh.com/micheal/fruit/yellow/banana",
+						Version: "v2.3.4",
+					},
+				},
+			},
+		},
+	}
+	for n, tc := range testCases {
+		m := protoModule{pathToGoMod: "irrelevant", mf: tc.modFile}
+		actual := m.ShortName("gh.com/micheal")
+		if actual != tc.name {
+			t.Errorf(
+				"%s: expected %s, got %s", n, tc.name, actual)
+		}
+	}
+}