sample.sh

#!/bin/bash

# this is the first script to execute which performs
# checks that everything is installed and operating as expected

$INSTALLED="/var/git/WordPress"
$DIRECTORY="/var/git/"

# install aws command line utility
apt install -y awscli

if [ -d "$INSTALLED" ];
then
    # directory existed do pull

    # change to dir
    cd $INSTALLED

    # Get new tags from the remote and checkout latest tag
    git fetch --tags
    latestTag=$(git describe --tags `git rev-list --tags --max-count=1`)
    git checkout $latestTag

else
    # directory didnt exist do clone
    cd $DIRECTORY

    # Grab wordpress
    git clone https://github.com/WordPress/WordPress.git

    cd WordPress/

    # Get new tags from the remote and checkout latest tag
    git fetch --tags
    latestTag=$(git describe --tags `git rev-list --tags --max-count=1`)
    git checkout $latestTag

    cd $DIRECTORY

    #checkout ket umbrella/stack repository
    git clone https://bitbucket.org/ket-dev/prime-stack.git --recursive

fi