From eb61134f2912726f0809f2c9a983a9e2b8d499fe Mon Sep 17 00:00:00 2001
From: Jacob Kiers <jacob@jacobkiers.net>
Date: Thu, 25 Sep 2014 10:07:51 +0200
Subject: [PATCH] First make sure that a battery is present.

Signed-off-by: Jacob Kiers <jacob@jacobkiers.net>
---
 bin/battery | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bin/battery b/bin/battery
index 786cf30..5087d67 100755
--- a/bin/battery
+++ b/bin/battery
@@ -42,6 +42,10 @@ battery_status()
 case $(uname -s) in
     "Linux")
         BATPATH=${BATPATH:-/sys/class/power_supply/BAT0}
+        if [ ! -d $BATPATH ]; then
+            exit 0
+        fi
+
         STATUS=$BATPATH/status
         [ "$1" = `cat $STATUS` ] || [ "$1" = "" ] || return 0
         if [ -f "$BATPATH/energy_full" ]; then