refactor: move making app struct to construct func

makes the code cleaner and easier to grab the app struct for testing

cli/cli.go

@@ -41,8 +41,7 @@ var DebugFlag = &cli.BoolFlag{
 	Usage:       "Show DEBUG messages",
 }
 
-// RunApp runs CLI abra app.
-func RunApp(version, commit string) {
+func newAbraApp(version, commit string) *cli.App {
 	app := &cli.App{
 		Name: "abra",
 		Usage: `The Co-op Cloud command-line utility belt 🎩🐇
@@ -108,6 +107,12 @@ func RunApp(version, commit string) {
 
 		return nil
 	}
+	return app
+}
+
+// RunApp runs CLI abra app.
+func RunApp(version, commit string) {
+	app := newAbraApp(version, commit)
 
 	if err := app.Run(os.Args); err != nil {
 		logrus.Fatal(err)