cli: improve error message for holod connection failures

Provide a more user-friendly error message when holo-cli can't connect to holod (usually due to holod not running). Signed-off-by: Renato Westphal <[email protected]>
holo-routing · Sep 2, 2023 · 5b2f0de · 5b2f0de
1 parent 7e2912e
commit 5b2f0de
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/holo-cli/src/main.rs b/holo-cli/src/main.rs
@@ -163,8 +163,14 @@ fn main() {
 
     // Initialize YANG context and gRPC client.
     let mut yang_ctx = yang::new_context();
-    let mut client =
-        GrpcClient::connect(grpc_addr).expect("Failed to connect to holod");
+    let mut client = match GrpcClient::connect(grpc_addr) {
+        Ok(client) => client,
+        Err(error) => {
+            eprintln!("Connection to holod failed : {}\n", error);
+            eprintln!("Please ensure that holod is currently running.");
+            std::process::exit(1);
+        }
+    };
     client.load_modules(&mut yang_ctx);
     YANG_CTX.set(Arc::new(yang_ctx)).unwrap();