WordPress updater bash script on remote server - #optimisation #bash #remote

wp-update.sh

#!/bin/bash

####################################################################
# WordPress updater script
# 
# This script has been made to update WordPress sites quickly
# and works on remote server.
# 
# It works with this simple command line:
# /path/to/wp-update.sh folder_name user:group
# 
# Example, if we need to update the `wp-project` WP folder with
# its own rights:
# 
# ssh remote-server
# cd /path/to/wp-project/parent/
# /path/to/wp-update.sh wp-project wp-project:www-data
# 
# You'll see that a new folder - with the old files - has been created.
# It is useful if you need to get back other specific files and move them
# in the new updated WordPress folder.
####################################################################

# Temporary WordPress folder useful to download WP in it
WPUPDATE="wp-update"

# Suffix name to the old project docroot
OLDNAME="_old"

# Main function which make all the magic
function wpUpdate {
  echo " "
  echo "                .-..-.                    "
  echo " "
  echo " "
  echo "              __           .-..-.         "
  echo "  Whoot?   -=(o '.                        "
  echo "              '.-.\                       "
  echo "              /|  \\                      "
  echo "    .-..-.    '|  ||                      "
  echo "               _\_):,_                    "
  echo " "
  echo " "
  echo "    __---___--___---___--___---___--___   "
  echo " "

  echo "~~ WordPress update START ~~"

  if [ -e "latest.tar.gz" ]; then
    echo " "
    echo "! Removing the old latest.tar.gz file..."
    rm latest.tar.gz
  fi

  echo " "
  echo "~ WordPress download latest archive"
  wget http://wordpress.org/latest.tar.gz

  if [ ! -d "$WPUPDATE" ]; then
    echo "! Creating '$WPUPDATE' folder..."
    mkdir $WPUPDATE
  else
    echo "! Removing all files in '$WPUPDATE' folder..."
    rm -rf $WPUPDATE/*
  fi

  echo " "
  echo "~ WordPress extraction in '$WPUPDATE' temporary folder"
  tar xfz latest.tar.gz -C $WPUPDATE
  rm latest.tar.gz

  echo " "
  echo "~ Removing new wp-content folder, readme.html and license.txt files"
  rm -rf $WPUPDATE/wordpress/wp-content
  rm $WPUPDATE/wordpress/license.txt $WPUPDATE/wordpress/readme.html

  echo " "
  echo "~ Moving wp-config.php and google site verification files"
  mv $FOLDER_NAME/wp-config.php $WPUPDATE/wordpress/
  mv $FOLDER_NAME/google*.html $WPUPDATE/wordpress/

  echo " "
  echo "~ Moving wp-content and robots.txt"
  mv $FOLDER_NAME/wp-content $WPUPDATE/wordpress/
  mv $FOLDER_NAME/robots.txt $WPUPDATE/wordpress/

  echo " "
  echo "~ Renaming old folder"
  mv $FOLDER_NAME $FOLDER_NAME$OLDNAME

  echo " "
  echo "~ Renaming/moving new folder"
  mv $WPUPDATE/wordpress $FOLDER_NAME

  echo " "
  echo "~ Change new folder's owner"
  chown -R $USER_GRANT $FOLDER_NAME

  echo " "
  echo "You can now remove the old $FOLDER_NAME$OLDNAME folder if you want."

  echo " "
  echo "~~ WordPress update END ~~"
}

if [ $# -ne 2 ]; then
  echo "USAGE : $0 folder_name user:group"
else
  FOLDER_NAME=$1
  USER_GRANT=$2

  wpUpdate
fi