From 30e42e76aacba3bdedb046ae9dfd3e338be2cd4a Mon Sep 17 00:00:00 2001
From: Henrik Lissner <henrik@lissner.net>
Date: Thu, 7 Mar 2013 03:58:35 -0500
Subject: [PATCH] Use sudo to permit --system gem updates

---
 zsh/aliases | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/zsh/aliases b/zsh/aliases
index c65b9cbc..36e6b6ec 100644
--- a/zsh/aliases
+++ b/zsh/aliases
@@ -40,6 +40,10 @@ function update() {
     brew update
     brew upgrade
     
+    # Keep sudo alive
+    sudo -v
+    while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &
+
     # Make sure rvm is sourced properly
     if [ -f ~/.rvm/scripts/rvm ]; then
         [ "$(type -t rvm)" = "function" ] || source ~/.rvm/scripts/rvm