Added the first version of the full-upgrade tool. This script handles a whole mess of installation that I like automatically.

tools/full-upgrade.zsh

@@ -0,0 +1,105 @@
+#!/bin/zsh
+
+# camperdave's full upgrade tool for oh-my-zsh. This tool updates a lot of things that might take a while, so it is seperate tool.
+# Created 5/6/2011
+
+# Step one: call the regular update script.
+# Step two: check for a custom-overlay. If found, update that.
+# Stept three: check each plugin folder, and if there's a .git folder in there, it is independently updated, so update that.
+
+base_upgrade(){
+    if [ -z $ZSH ]; then
+        if [ -d "~/.oh-my-zsh" ]; then
+            export ZSH=~/.oh-my-zsh
+        fi
+    fi
+
+    if [ -f "$ZSH/tools/upgrade.sh" ]; then
+        "$ZSH/tools/upgrade.sh"
+    else
+        echo "Upgrade script not found!"
+
+        doFresh=1
+        while [ $doFresh -eq 1 ]; do
+            echo -n "Do you want to install oh-my-zsh to $HOME/.oh-my-zsh? [Y/n] "
+            read yn
+            case $yn in
+                [Yy]* ) git clone git://github.com/robbyrussell/oh-my-zsh.git ~/.oh-my-zsh
+                        echo "You should go back up your old .zshrc file, and copy over the one in ~/.oh-my-zshrc/templates..." 
+                        break ;;
+                [Nn]* ) doFresh=0
+                        break ;;
+                    * ) echo "Please answer Yes or No." 
+                        ;;
+                esac   
+        done;
+    fi    
+}
+
+
+overlay_upgrade(){
+    cd "$ZSH"
+    echo "Looking for a custom-overlay"
+    git remote | grep "custom-overlay"
+
+    if [[ $? == 0 ]]; then
+        echo "custom-overlay found. Perfoming update."
+        saveIFS=$IFS 
+        IFS=$'\n'
+        
+        doOverlay=1
+        while [ $doOverlay -eq 1 ]; do
+            set -A badFiles $(git pull -q --no-commit custom-overlay custom-overlay 2>&1)
+        
+            if [[ ${#badFiles} -gt 0 ]]; then
+                echo "$badFiles[2,${#badFiles}-2]"
+                echo -n "Do you want to delete the above files in order to pull down your custom overlay? [Y/n] "
+                read yn
+                case $yn in
+                    [Yy]* ) for i in $badFiles[2,${#badFiles}-2]; do
+                                val=$(echo $i | sed -e 's/^[ \t]*//')
+                                rm "$val"
+                            done; 
+                            break ;;
+                    [Nn]* ) doOverlay=0
+                            break ;;
+                    * ) echo "Please answer Yes or No." 
+                        ;;
+                esac
+            else
+                doOverlay=0
+            fi    
+        
+        done;
+
+        IFS=$saveIFS
+
+        
+        # echo $badFiles[2]
+    fi
+
+    echo "custom-overlay update completed, performing plugin updates!"
+}
+
+plugin_upgrade(){
+    cd "$ZSH"
+    cd "plugins"
+    
+    builtin set -A list **
+       
+    for i in $list; do
+        if [ -d "$i/.git" ]; then
+    	    echo "Updating $i..."
+    	    cd "$i"
+    	    git pull
+    	    cd ..
+        fi
+    done
+}
+
+
+# base_upgrade
+overlay_upgrade
+# plugin_upgrade
+
+cd "$ZSH"