warn user to enable WiFi before scanning; closes #620

tessel · Apr 24, 2016 · 76990cc · 76990cc
1 parent 32564aa
commit 76990cc
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/lib/tessel/wifi.js b/lib/tessel/wifi.js
@@ -38,6 +38,12 @@ Tessel.prototype.findAvailableNetworks = function() {
 
         return networks;
       }, []).sort(compareBySignal);
+    })
+    .catch(function checkNoSuchDeviceError(err) {
+      if (/No such wireless device/.test(err.message)) {
+        return Promise.reject(new Error('Unable to find wireless networks while wifi is disabled. Run "t2 wifi --on" before trying again.'));
+      }
+      return Promise.reject(err);
     });
 };