From 82c052ceecb59e2023c4b6f336e0db9423529a02 Mon Sep 17 00:00:00 2001
From: Andrzej Bieniek <andyhelp@gmail.com>
Date: Mon, 4 Mar 2019 22:32:22 +0000
Subject: [PATCH] batteryarc-widget: fix crash when battery is not available

It was crashing awesome window manager when starting with battery removed from the laptop.
---
 batteryarc-widget/batteryarc.lua | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/batteryarc-widget/batteryarc.lua b/batteryarc-widget/batteryarc.lua
index a8e5250..1727ee1 100644
--- a/batteryarc-widget/batteryarc.lua
+++ b/batteryarc-widget/batteryarc.lua
@@ -75,7 +75,9 @@ watch("acpi -i", 10,
 
             charge = charge + batt.charge * capacities[i]
         end
-        charge = charge / capacity
+        if capacity > 0 then
+            charge = charge / capacity
+        end
 
         widget.value = charge / 100
         if status == 'Charging' then