Bash: Productionalise

productionalise.sh

#!/bin/bash
# Take a snopshot of code and sym link it to a published apached location
# Created By: Javier Woodhouse

user=$1
symbolic_path=$2
source=$3
date_part=`date +"%Y%m%d-%I%M%S"`
destination="$user.$date_part"

#
# Preconditions
#

if [ "$source" == "" ]; then
  # No input given, show usage and get out of here!

  echo " Usage: producitonalise.sh user symbolic_path source           "
  echo "                                                               "
  echo " user          : Snapshot permissions and ownerships will be   "
  echo "                 assigned to this user.                        "
  echo " symbolic_path : Symbolic path that will be updated to point   "
  echo "                 to the specified source code.                 "
  echo " source        : Source code to snapshot and point symlink to. "
  echo "                                                               "
  echo " Example: To productionalise the current staging environment   "
  echo "                                                               "
  echo " > cd /home/var/www/                                           "
  echo " > productionalise.sh production production_code staging       "
  exit 0
fi

if [ ! -L $symbolic_path ]; then
  # Check that provided link is a proper symlink

  echo "[ERRPR] Symbolic path provided is not a valid symlink: $symbolic_path"
  exit 0;
fi

#
# Lets setup the new environment
#

cp -R "$3" "$destination"
chown -R $user:$user $destination
rm $symbolic_path
ln -s $destination $symbolic_path