more error resistance

src/updater.lua

@@ -29,6 +29,7 @@ local function checkForUpdate()
                     fs.copy("startup.lua", "backup.lua")
 
                     if not string.find(update_code_text, __UPDATE_HASH) then
+                        http.post(config.ntfy_url, "Computer #" .. tostring( os.getComputerID() ) .. "updating")
                         local file = fs.open("startup.lua", "w")
                         file.write(update_code_text)
                         file.close()
@@ -52,7 +53,10 @@ end
 
 function mod.UpdateChecker()
     while true do
-        checkForUpdate()
+        local status, err = pcall(checkForUpdate)
+        if not status and err ~= "Terminated" then
+            http.post(config.ntfy_url, err, {Priority = "urgent"}) 
+        end
         sleep(1)
     end
 end