#! /bin/bash 
# 
# =======================
# WordPress Upgrade Script 0.1
# Written by Command Line Idiot
# http://commandlineidiot.com
# You may use, modify, and redistribute this script freely
# Released: April 2008
# =======================

# =======================
#	set variables
# =======================
# This gets the location of the WordPress install
# from the user. This is the server location, not
# the URL. Make sure that it does not include the
# trailing slash. If you only have one WP
# install, you can simply replace the followin
# lines with the location, as shown:
# WPLOC="/home/USER/site.com/blog"

echo 'WordPress server location, without trailing slash (ex. /var/www/mysite.com/blog)'
read WPLOC

# This script uses the /tmp folder to download
# and unzip WordPress. If you do not have access
# to the /tmp folder, change this to a location
# you do have access to. Be careful! Later on,
# this script will delete any existing wordpress/
# folder at this location. It's best to use a
# folder that is dedicated to temporary,
# non-vital data, like the /tmp folder

WPNEW='/tmp'

# =======================
#	download latest wp
# =======================
# removes any existing wordpress.zip files, or
# wordpress/ folders at the temp location,
# downloads latest version, unzips, and deletes
# the .zip file. Can I just say, THANK YOU, THANK
# YOU, THANK YOU, a thousand times thank you to
# WordPress for choosing to always keep their
# latest software version at a simple, consistent
# location. No matter what version they're on,
# you will always find it at
# wordpress.org/latest.zip
# 
# Perfect.

cd $WPNEW
rm -rf $WPNEW/wordpress
rm -f latest.zip
wget http://wordpress.org/latest.zip
unzip -o latest.zip
rm wordpress.zip

# =======================
#	backup current wp
# =======================
# the current wordpress install will be backed up
# to a new folder in the same location, with the
# extension .bak - if that folder already exists,
# it gets blowed up!

rm -rf $WPLOC.bak
cp -rv $WPLOC $WPLOC.bak

# =======================
#	the move!
# =======================
# And now, finally, the new files will be copied
# over into the wordpress folder, overwriting any
# existing files of the same name.

cp -rfv $WPNEW/wordpress/*.php $WPLOC/
cp -rfv $WPNEW/wordpress/wp-admin/* $WPLOC/wp-admin/
cp -rfv $WPNEW/wordpress/wp-includes/* $WPLOC/wp-includes/

# =======================
#	all done!
# =======================
exit

# =======================
#	some notes
# =======================
# There are some things rare circumstances where
# this script will not work well - if the
# wp-config.php file has updates to it (as the WP
# guys did between 2.3 and 2.5), those will not
# be copied over. Also, the wp-content folder is
# not touched during the upgrade. If you need
# data from the new wp-content folder, you'll
# have to transfer it manually.