Fix https://{registry}/me display

lib/cli/src/commands/login.rs

@@ -16,9 +16,29 @@ impl Login {
     fn get_token_or_ask_user(&self) -> Result<String, std::io::Error> {
         match self.token.as_ref() {
             Some(s) => Ok(s.clone()),
-            None => Input::new()
-                .with_prompt("Please paste the login token from https://wapm.io/me:\"")
-                .interact_text(),
+            None => {
+                let registry_host = url::Url::parse(&wasmer_registry::format_graphql(
+                    &self.registry,
+                ))
+                .map_err(|e| {
+                    std::io::Error::new(
+                        std::io::ErrorKind::Other,
+                        format!("Invalid registry for login {}: {e}", self.registry),
+                    )
+                })?;
+                let registry_host = registry_host.host_str().ok_or_else(|| {
+                    std::io::Error::new(
+                        std::io::ErrorKind::Other,
+                        format!("Invalid registry for login {}: no host", self.registry),
+                    )
+                })?;
+                Input::new()
+                    .with_prompt(&format!(
+                        "Please paste the login token from https://{}/me:\"",
+                        registry_host
+                    ))
+                    .interact_text()
+            }
         }
     }