do not log in prod

lib/farside.ex

@@ -93,16 +93,21 @@ defmodule Farside do
     end
   end
 
-
   def save_results(file, data) do
-    {:ok, file} = File.open(file, [:append])
-    bin = :erlang.term_to_binary(data)
-    IO.binwrite(file, bin)
-    File.close(file)
+    case System.get_env("MIX_ENV") do
+      "prod" ->
+        nil
+
+      _ ->
+        {:ok, file} = File.open(file, [:append])
+        bin = :erlang.term_to_binary(data)
+        IO.binwrite(file, bin)
+        File.close(file)
+    end
   end
 
   def restore_term(file) do
-    {:ok,bin} = File.read(file)
+    {:ok, bin} = File.read(file)
     :erlang.binary_to_term(bin)
   end
 end

lib/farside/instances.ex

@@ -5,9 +5,15 @@ defmodule Farside.Instances do
     update_file = Application.fetch_env!(:farside, :update_file)
     update_json = update_file <> ".json"
 
-    File.rename(update_json, "#{update_file}-#{to_string(DateTime.utc_now()) <> ".json"}")
+    case System.get_env("MIX_ENV") do
+      "prod" ->
+        nil
 
-    File.write(update_json, "")
+      _ ->
+        File.rename(update_json, "#{update_file}-#{to_string(DateTime.utc_now()) <> ".json"}")
+
+        File.write(update_json, "")
+    end
 
     LastUpdated.value(DateTime.utc_now())
     Farside.Instance.Supervisor.update_children()