More portable script

1 files changed, 31 insertions, 4 deletions

diff --git a/battery b/battery
index ef3997e..51464a5 100755
--- a/battery
+++ b/battery
@@ -1,6 +1,33 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
-# Quick hack to display battery levels for the laptop
+names="sbs-20-000b BAT0 BAT1"
+dir=""
 
-str="s/ Charging, /C/;s/ Discharging, /D/;s/ Unknown,/U/;s/ Full, /F/"
-acpi | cut -d: -f 2- | sed "$str" | cut -d\  -f 1-2 | cut -d: -f 1-2;
+for n in $names; do
+    if [ -d "/sys/class/power_supply/$n" ] ; then
+        dir=$n
+        break
+    fi;
+done
+
+fetch() {
+    cat /sys/class/power_supply/$dir/$1
+}
+
+status=$(fetch status)
+
+if [ "$status" = "Full" ] ; then
+    echo $status
+else
+    
+    if [ "$status" = "Discharging" ]; then
+	time=$(fetch time_to_empty_avg)
+    else
+	time=$(fetch time_to_full_avg)
+    fi;
+
+    hours=$(($time/3600))
+    minutes=$(($time/60-$hours*60))
+
+    echo $status $(fetch capacity)%, "$hours"h "$minutes"m
+fi;