Adding an upgrade_oh_my_zsh function to... well, upgrade Oh My Zsh

functions.zsh

@@ -32,6 +32,10 @@ function uninstall_oh_my_zsh() {
   /bin/sh $ZSH/tools/uninstall.sh
 }
 
+function upgrade_oh_my_zsh() {
+  /bin/sh $ZSH/tools/upgrade.sh
+}
+
 function tab() {
   osascript 2>/dev/null <<EOF
     tell application "System Events"

tools/upgrade.sh

@@ -0,0 +1,5 @@
+current_path=`pwd`
+echo "Upgrading Oh My Zsh"
+( cd $ZSH && git pull origin master )
+echo "Done."
+cd $current_path