From fdd46d8815f9c3a314e13d2dbb57685fd78f4e7c Mon Sep 17 00:00:00 2001
From: Sean Jones <neuralsandwich@gmail.com>
Date: Sat, 2 Mar 2013 11:09:57 +0000
Subject: [PATCH] Updated battery plugin.  Displays charging time.

linux battery level now refreshes after every command
---
 plugins/battery/battery.plugin.zsh | 33 ++++++++++++++++++------------
 1 file changed, 20 insertions(+), 13 deletions(-)

diff --git a/plugins/battery/battery.plugin.zsh b/plugins/battery/battery.plugin.zsh
index 95f89063..cc9342c7 100644
--- a/plugins/battery/battery.plugin.zsh
+++ b/plugins/battery/battery.plugin.zsh
@@ -42,17 +42,27 @@ if [[ $(uname) == "Darwin" ]] ; then
       fi
       echo "%{$fg[$color]%}[$(battery_pct_remaining)%%]%{$reset_color%}"
     else
-      echo ""
+      echo "∞"
     fi
   }
 
 elif [[ $(uname) == "Linux"  ]] ; then
 
-  if [[ $(acpi 2&>/dev/null | grep -c '^Battery.*Discharging') -gt 0 ]] ; then
-    function battery_pct_remaining() { echo "$(acpi | cut -f2 -d ',' | tr -cd '[:digit:]')" }
-    function battery_time_remaining() { echo $(acpi | cut -f3 -d ',') }
-    function battery_pct_prompt() {
-      b=$(battery_pct_remaining)
+  function battery_pct_remaining() {
+    if [[ $(acpi 2&>/dev/null | grep -c '^Battery.*Discharging') -gt 0 ]] ; then
+      echo "$(acpi | cut -f2 -d ',' | tr -cd '[:digit:]')" 
+    fi
+  }
+
+  function battery_time_remaining() {
+    if [[ $(acpi 2&>/dev/null | grep -c '^Battery.*Discharging') -gt 0 ]] ; then
+      echo $(acpi | cut -f3 -d ',')
+    fi
+  }
+
+  function battery_pct_prompt() {
+    b=$(battery_pct_remaining) 
+    if [[ $(acpi 2&>/dev/null | grep -c '^Battery.*Discharging') -gt 0 ]] ; then
       if [ $b -gt 50 ] ; then
         color='green'
       elif [ $b -gt 20 ] ; then
@@ -61,11 +71,8 @@ elif [[ $(uname) == "Linux"  ]] ; then
         color='red'
       fi
       echo "%{$fg[$color]%}[$(battery_pct_remaining)%%]%{$reset_color%}"
-    }
-  else
-    error_msg='no battery'
-    function battery_pct_remaining() { echo $error_msg }
-    function battery_time_remaining() { echo $error_msg }
-    function battery_pct_prompt() { echo '' }
-  fi
+    else
+      echo "∞"
+    fi
+  }
 fi