From c8137fcf1a8461fddb98ada19e03c40834287c21 Mon Sep 17 00:00:00 2001
From: Dominik Ritter <dritter03@googlemail.com>
Date: Tue, 24 Nov 2015 18:17:04 +0100
Subject: [PATCH] Pre-Grep the raw data to save some memory and to avoid
 cluttering up the output of `setopt xtrace` too much.

---
 powerlevel9k.zsh-theme | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/powerlevel9k.zsh-theme b/powerlevel9k.zsh-theme
index 989f04ce..fb5e20d4 100755
--- a/powerlevel9k.zsh-theme
+++ b/powerlevel9k.zsh-theme
@@ -220,7 +220,9 @@ prompt_battery() {
   [[ -z $POWERLEVEL9K_BATTERY_FOREGROUND ]] && local icon_color="$DEFAULT_COLOR_INVERTED" || local icon_color="$POWERLEVEL9K_BATTERY_FOREGROUND"
 
   if [[ $OS =~ OSX && -f /usr/sbin/ioreg && -x /usr/sbin/ioreg ]]; then
-    local raw_data=$(ioreg -n AppleSmartBattery)
+    # Pre-Grep all needed informations to save some memory and
+    # as little pollution of the xtrace output as possible.
+    local raw_data=$(ioreg -n AppleSmartBattery | grep -E "MaxCapacity|TimeRemaining|CurrentCapacity|ExternalConnected|IsCharging")
     # return if there is no battery on system
     [[ -z $(echo $raw_data | grep MaxCapacity) ]] && return