Upgrade a translated installation of WordPress-Skeleton

upgrade_translated_wordpress_skeleton.sh

#!/bin/bash
# usage: upgrade_wordpress.sh X.X.X
# This is for upgrading a translated version of WordPress whilst using WordPress-Skeleton
# https://github.com/markjaquith/WordPress-Skeleton
# https://core.trac.wordpress.org/ticket/27752
# licence MIT

die () {
    echo >&2 "$@"
    exit 1
}

# check that there is one argument
[ "$#" -eq 1 ] || die "usage: upgrade_wordpress.sh X.X.X"

# http://stackoverflow.com/q/2220301/327074
response=$(curl --write-out %{http_code} --silent --output /dev/null http://core.svn.wordpress.org/tags/$1/)

# check that the tag repository exists, i.e. returns a HTTP 200 status code
[ "$response" -eq 200 ] || die "Couldn't find Wordpress version, http error: $response"

# Take a backup
mysqldump -u [database-user] -p[database-password] [database-name] > wordpress_upgrade_to_$1_bak.sql


# Updating to a New Stable Version
cd ~/path/to/wp/

# This assumes we've edited wp-includes/version.php
# stash the changes, upgrade, then put them back
git stash
git fetch --tags
git checkout $1
git stash apply