Enforce arguments by using ArgGroup

1 files changed, 5 insertions, 1 deletions

diff --git a/imag-link/src/ui.rs b/imag-link/src/ui.rs
index e334c391..95881a58 100644
--- a/imag-link/src/ui.rs
+++ b/imag-link/src/ui.rs
@@ -1,4 +1,4 @@
-use clap::{Arg, App, SubCommand};
+use clap::{Arg, ArgGroup, App, SubCommand};
 
 pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
     app
@@ -87,6 +87,10 @@ pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
                          .required(false)
                          .help("List external links"))
 
+                    .group(ArgGroup::with_name("external-link-group")
+                           .args(&["add", "remove", "set", "list"])
+                           .required(true))
+
                     )
 }