Stupid SilverStripe project creation script

gistfile1.sh

#!/bin/bash

#
# Create a new SilverStripe project in seconds.
# Russell Michell <russell@silverstripe.com>
#
# TODO
# 1). Add support for a greater range of composer executables
# 2). Add support for a greater range of webservers
# 3). Ping the repo to ensure it isn't down

# SilverStripe Config
SSCONFIG_REPO_URL="https://gitorious.silverstripe.com"

IFS_OLD=$IFS
IFS=";"

#
# Get the DocumentRoot for Apache Httpd
#
function getDocRootHttpd {
        DOCROOT=$( grep -s "^DocumentRoot" $1/httpd.conf | awk -F\" '{ print $2 }' )
        echo $DOCROOT
}
#
# Run some system checks
#
function runSysChecks {
        # Check GIT
        echo -e "Checking GIT..."
        GIT=$( which git )
        if [ ! $? -eq 0 ]
        then
                echo -e "I can't find GIT on your system. I quit!\n"
                exit 1
        fi
        # Check Composer
        echo -e "Checking composer..."
        COMPOSER=$( which composer )
        if [ ! $? -eq 0 ]
        then
                echo -e "I can't find composer on your system. I quit!\n"
                exit 1
        fi
        # Check Webserver's DocumentRoot
        echo "Checking document root..."
        CANDIDATE_HTTPD_PATHS="/etc/apache2;/etc/httpd/conf;/usr/local/apache/conf;/usr/local/httpd/conf"
        for DIR in $CANDIDATE_HTTPD_PATHS
        do
                DOCROOT=$( getDocRootHttpd $DIR )
                if [ ${#DOCROOT} -gt 1 ]
                then
                        break
                fi
        done
        if [ ${#DOCROOT} -lt 0 ]
        then
                echo -e "I'm unable to determine your webserver's document root. quit!\n"
                exit 1
        fi
}

# What is the project's name? e.g. my-site.co.nz
if [ ${#1} -eq 0 ]
then
        echo -e "I couldn't see a project name. I quit!\n"
        exit 1
else
        FOLDER_NAME=$1
fi

runSysChecks

# Is this a new project?
PROJ_ISNEW="0"
PROJ_REPO_URI=""
if [ ${#2} -gt 0 ]
then
        PROJ_ISNEW="1"
else
        # Not a new project so we expect a value for a GIT repo URI
        if [ ${#4} -gt 0 ]
        then
                PROJ_REPO_URI=$4
        fi
fi

# Restore things to a natural state
IFS=$IFS_OLD

# If this is a new project, get the correct installer's repo URL
if [ ${#PROJ_ISNEW} -eq 1 ]
then
        # What type of project is this?
        if [ "$3" = "CWP" ]
        then
                VCS_PRJ="cwp-installer-basic"
                VCS_URL="https://gitlab.cwp.govt.nz/cwp/$VCS_PRJ.git"
        else
                VCS_PRJ="silverstripe-installer"
                VCS_URL="https://github.com/silverstripe/$VCS_PRJ.git"
        fi
else
        VCS_PRJ=$PROJ_REPO_URI
        VCS_URL="$SSCONFIG_REPO_URL/$VCS_PRJ.git"
fi

echo "Creating project directory $FOLDER_NAME in $DOCROOT..."

# Create the project directory
PROJDIR=$DOCROOT/$FOLDER_NAME
if [ ! -d $PROJDIR ]
then
        mkdir $PROJDIR
        PROJPREEXISTED="0"
else
        PROJPREEXISTED="1"
        echo "Project directory $FOLDER_NAME already exists in $DOCROOT..."
fi

# Ensure the folder was actually created and didn't fail due to permissions etc
if [ ! -d $PROJDIR ]
then
        echo "Couldn't create $PROJDIR. I quit!"
fi

# Fetch the SilverStripe repo, but only if the project doesn't already exist
cd $PROJDIR
if [ $PROJPREEXISTED -eq 0 ]
then
        if [ ${#PROJ_ISNEW} -eq 1 ]
        then
                echo -e "Installing SilverStripe into $PROJDIR from $VCS_URL..."
                composer --quiet install $VCS_PRJ
        else
                echo -e "Fetching SilverStripe project from $VCS_URL..."
                git clone $VCS_URL . 2&> /dev/null
        fi
        # Check that we were really successful
        if [ -d "./.git" ]
        then
                echo -e "Project fetched successfully...\n"
        else 
                echo -e "Project fetch failed...\n"
        fi
else
        if [ -d "./.git" ]
        then
                echo -e "Project is already installed. Finishing.\n"
        fi
fi