Install any version of WordPress with a single command

getwp

#!/bin/bash

# USAGE:
# getwp [-v version] dest

# Help screen
function usage()
{
  echo
  echo "getwp -- Made with <3 by @friartuck6000"
  echo
  echo -e "\033[1mDESCRIPTION\033[0m"
  echo -e "    Install or upgrade a WordPress instance"
  echo
  echo -e "\033[1mUSAGE\033[0m"
  echo -e "    getwp [options] \033[4mdestination\033[0m"
  echo
  echo -e "\033[1mOPTIONS\033[0m"
  echo -e "    \033[4m-h\033[0m, \033[4m--help\033[0m, \033[4m--halp\033[0m"
  echo -e "        Show this help screen."
  echo
  echo -e "    \033[4m-v\033[0m, \033[4m--version\033[0m"
  echo -e "        Specify a WordPress version to download; gets latest if omitted."
  echo -e "        See \033[1mhttp://wordpress.org/download/release-archive/\033[0m for version details."
  exit 1
}

# Die!
function die()
{
  echo -e "$*"
  exit 1
}

function opts()
{
  ver="latest"
  argv=()
  while [ $# -gt 0 ]; do
    opt=$1; shift
    case ${opt} in
      -v | --version )
        if [ $# -eq 0 -o "${1:0:1}" = "-" ]; then
          die "Argument required for ${opt} option."
        fi
        vermatch='^[0-9\.]+\-?[a-zA-Z0-9]*$'
        if [[ "$1" =~ $vermatch ]]; then
          ver="$1"
        fi
        shift;;
      -h | --help | --halp )
        usage;;
      * )
        if [ "${opt:0:1}" = "-" ]; then
          die "Unknown option ${opt}."
        fi
        argv+=(${opt});;
    esac
  done
}

# Parse options
opts $*

# Here we go
# -----------------------------------------------------------------------------------------

MSG_ERROR="\033[41m[ERROR]\033[0m"
MSG_OK="\033[1;32m[OK]\033[0m"

# Set base components
DOWNLOAD_DIR=~/tmp/getwp
INSTALL_DIR=""
WP_BASE_URL="http://wordpress.org"
WP_FILE_EXT="tar.gz"

# Set up the full download URL
if [ "$ver" != "latest" ]; then
  WP_ARCHIVE_NAME="wordpress-${ver}.${WP_FILE_EXT}"
else
  WP_ARCHIVE_NAME="${ver}.${WP_FILE_EXT}"
fi
WP_DOWNLOAD_URL="${WP_BASE_URL}/${WP_ARCHIVE_NAME}"

# Make sure the download directory exists
if [ ! -d "$DOWNLOAD_DIR" ]; then
  mkdir -p $DOWNLOAD_DIR
fi

# Set the install directory
if [ "${argv[0]}" != "" ]; then
  if [ ! -d "${argv[0]}" ]; then
    echo -e "\033[1;34mCreating destination directory: \033[0m${argv[0]}"
    (mkdir -p ${argv[0]} && echo -e "$MSG_OK") \
      || die "$MSG_ERROR"
  fi
  INSTALL_DIR=`echo $(cd ${argv[0]}; pwd)`
else
  die "You must supply a destination directory to use this tool!"
fi

echo -e "\033[1;34mEntering download directory...\033[0m"
sleep 1
cd $DOWNLOAD_DIR
rm -rf *
echo -e "$MSG_OK"

# Prefer WGET, but use CURL if it's not available
echo
echo -e "\033[1;34mDownloading latest WordPress version...\033[0m"
sleep 1
if [ "$(which wget)" != "" ]; then
  (wget $WP_DOWNLOAD_URL && echo -e "$MSG_OK") \
    || die "$MSG_ERROR"
else
  (curl -L $WP_DOWNLOAD_URL > latest.tar.gz && echo -e "$MSG_OK") \
    || die "$MSG_ERROR"
fi

# Extract
echo
echo -e "\033[1;34mExtracting WordPress files...\033[0m"
sleep 1
if [ "$WP_FILE_EXT" = "tar.gz" ]; then
  (tar zxf $WP_ARCHIVE_NAME && echo -e "$MSG_OK") \
    || die "$MSG_ERROR"
elif [ "$WP_FILE_EXT" = "zip" ]; then
  (unzip $WP_ARCHIVE_NAME && echo -e "$MSG_OK") \
    || die "$MSG_ERROR"
fi

# Copy
echo
echo -e "\033[1;34mUpdating files in \033[0m${INSTALL_DIR}..."
sleep 1
shopt -s extglob
(cp -rf wordpress/!(wp-content) $INSTALL_DIR && echo -e "$MSG_OK") \
  || die "$MSG_ERROR"

# Glorious
echo
echo "All done! Enjoy."