An interactive command line drupal 8 installer

install-drupal8.sh

#!/bin/bash

# Interactive drupal installation


### Allow only root users to use the script
if [ "$EUID" -ne 0 ]; then
	echo "Script must be run as a root."
  exit 1
fi	


#### Get user name in case script is run with 'sudo'
script_name=$(basename $0)
promter=" > "

### Define error codes
PERM_DENIED=10
NOT_WRITBALE=11
INVALID_USER=12
UNSUPP_OS=13
MISSING_DEPEND=14
INSTALL_ERROR=15

trap 'echo script has been terminated. Cleaning up and exitting; cleanup_script $LINENO $BASH_COMMAND; \
			echo You can check the logs in /tmp/${script_name}.log; exit 0' SIGINT SIGQUIT SIGTERM TERM

### Set default drupal variables
temp_dir=/tmp
context_root_default="default-${RANDOM}"
site_name_default="Default Site Name"
site_user_default="admin"
site_pass_default="admin"
db_user_default="root"
db_name_default="drupaldb${RANDOM}"

# List of themes with available sub-themes
available_sub_themes="bartik bootstrap"

### FUNCTIONS BEGIN ###

### Custom Utils Begin ###

function os_type {
	sys_info=`uname -a`
	
	case "$sys_info" in
		*ARCH*)
			echo "arch"
			;;		

		*Ubuntu*)
			echo "ubuntu"
			;;		

		*Debian*)
			echo "debian"
			;;		
	
		*CYGWIN*|MINGW32*|MSYS*)
			echo "windows"
			;;		

		*Darwin)
			echo "mac"
			;;
		*)
			echo "other"
			;;		
	esac
}

function command_exists {
	type "$1" &> /dev/null ;
}

function to_machine_name {
	local my_string="$1"
	local str_lower="${my_string,,}"
	local machine_name="${str_lower// /_}"

	echo $machine_name
}

### Custom Utils End ###

### Script Related Begin ###

function cleanup_variables {
	unset temp_dir
	unset install_path
	unset context_root
	unset site_name
	unset site_user
	unset site_password
	unset db_name
	unset db_user
	unset db_password
}

function cleanup_script {
	echo "[$(date +"%T")] script: $script_name was terminated: line: $1, command was '$2'" | tee -a /tmp/${script_name}.log

	if [ -d "$temp_full_install_path" ]; then
		echo "Removing context root folder: ${temp_full_install_path}..." 
	  rm -r $temp_full_install_path
	fi

	if [ ! -z "$db_name" ]; then
		echo "Dropping database ${db_name}..."
		mysql -u"$db_user" -p"$db_password" -e "DROP DATABASE IF EXISTS $db_name"				
	fi
}


function print_prompter {
	message="$1"	

	echo
	echo " $message"
	echo -n "$promter"
}

function exit_script {
	message="$1"
	code="$2"
	
	echo "$message"
	exit "$code"
}

function confirm  {
    while true; do
        read -p "$1 " yn
        case $yn in
            [Yy]* ) return 0;;
            [Nn]* ) return 1;;
            "" ) 		return 0;;
            * ) echo "Please answer yes or no.";;
        esac
    done
}

### Script Related End ###

### Script Depdencencies Begin ###
function install_composer {
	cd /tmp	
	if ! command_exists "curl"; then
		echo "curl not installed, falling back to php..."	
		php -r "readfile('https://getcomposer.org/installer');" | php
	else
		curl -sS https://getcomposer.org/installer | php
	fi
	mv composer.phar /usr/local/bin/composer
	export PATH="$HOME/.composer/vendor/bin:$PATH"
	source ~/.bashrc
}

function install_drush {
	cd /tmp
	wget http://files.drush.org/drush.phar
	chmod 755 drush.phar
	mv drush.phar /usr/local/bin/drush
}

function install_sqlite {
	wget http://www.sqlite.org/sqlite-autoconf-3070603.tar.gz
	cd sqlite-autoconf-3070603
	./configure
	make
	make install

	if [ $? -neq 0 ]; then
		exit_script "Something went wrong while installing sqlite. Check errors above. Exitting..." "$INSTALL_ERROR"
	fi

	cd -
}

### Script Depdencencies End ###

function install_modules {
	print_prompter "List drupal modules separated by space"
	read modules
       
	echo "Installing modules: ${modules// /, }..." 
	drush en -y $modules
}

### Drupal Related Begin ###

function install_drupal_console {
	curl https://drupalconsole.com/installer -L -o drupal.phar
	mv drupal.phar drupal
	chmod +x drupal
	mv drupal /usr/local/bin
	drupal init
}

function install_theme {
	print_prompter "Enter name of the theme:"
	read theme        
	local theme="${theme,,}"
	echo "Enabling theme: ${theme}..."
	drush en -y $theme
  
}

function set_theme_default {
	drush -y config-set system.theme default $1
}

function create_bartik_subtheme {
	echo "Crating Bartik sub-theme..."
}

function create_bootstrap_subtheme {		
	local default_name="Theme Default Name"
	local default_description="Theme Default Description"
	local default_machine_name="$(to_machine_name $default_name)"

  	print_prompter "Enter name of the sub-theme (e.g \"My Theme\")[$default_name]:"
    read name        
			
    if [ -z "$name" ]; then
		  name="$default_name"
			machine_name="$default_machine_name"
		else
			machine_name=$(to_machine_name "$name")
	  fi
				
  	print_prompter "Enter description of the sub-theme [$default_description]:"
    read description        
			
    if [ -z "$description" ]; then
		  description="$default_description"
	  fi
	
  	echo "Theme machine name: $machine_name"     
		echo
		echo "Moving into themes folder..."
		cd themes

		cdn=contrib/bootstrap/starterkits/cdn
		echo "Copying $cdn to custom/${machine_name}..."			
		cp -r $cdn custom/$machine_name
		
		echo "Moving into custom/${machine_name}..."
		cd custom/$machine_name

		echo "Renaming files that begin with and replacing occurences of "THEMENAME"..."
		find -maxdepth 3 -name "THEMENAME.*" \
		 -exec bash -c 'file={} ; sed -i "s/THEMENAME/'"$machine_name"'/g" $file ; mv $file ${file//THEMENAME/'"$machine_name"'} ' \;

		echo "Renaming ${machine_name}.starterkit.yml to ${machine_name}.info.yml..."
		mv ${machine_name}.starterkit.yml ${machine_name}.info.yml 
		local info_file="${machine_name}.info.yml"

		echo "Set sub-theme name in ${info_file}..."
		sed -i "/^name:/c\name: '$name'" $info_file
		
		echo "Set sub-theme description in ${info_file}..."
		sed -i "/^description:/c\ndescription: '$description'" $info_file
	
		if [ ! -e js ]; then
		echo "'js' directory doesn't exist. Creating 'js' directory..."
			mkdir js
		fi
		
		echo
		if confirm "Do you want to set $name as the default theme? (y)"; then
			drush en $machine_name
		  set_theme_default $machine_name
		fi

		echo "Moving back to ${temp_full_install_path}..."
		cd ${temp_full_install_path}
}


function create_common_folders {
	temp_full_install_path=$1
	echo "Moving into ${temp_full_install_path}..."
	cd $temp_full_install_path

	echo "Creating ${temp_full_install_path}/modules/contrib folder..."
	mkdir modules/contrib
	echo "Creating ${temp_full_install_path}/modules/custom folder..."
	mkdir modules/custom

	echo "Creating ${temp_full_install_path}/themes/contrib folder..."
	mkdir themes/contrib
	echo "Creating ${temp_full_install_path}/themes/custom folder..."
	mkdir themes/custom
}

### Drupal Related End ###

function set_default_os_variables {

	case "$(os_type)" in
		"windows")		
			exit_script " Script currently cannot be run on Windows :( exiting..." "$UNSUPP_OS"
			;;
		"arch")		
			inst_path_default=/srv/http
			echo " OS: Arch Linux. Setting default installation path to ${inst_path_default}"
			;;
		"ubuntu"|"debian")
			inst_path_default=/var/www
			echo -n " OS type: Ubuntu. Setting default installation path to ${inst_path_default}"
	esac
}

function check_dependences {
	echo "Checking if apache is installed..."
	if ! command_exists "apachectl"; then
		echo "Apache not installed. Exitting..."
		exit_script "Apache is either not installed or not properly configured. Please install/fix it and rerun the script." "$MISSING_DEPEND"
	fi

	echo "Checking if composer is installed..."
	if ! command_exists "composer"; then
		echo "Composer isn't installed. Installing composer..."
		install_composer
	fi

	echo "Checking if drush is installed..."
	if ! command_exists "drush"; then
		echo "Drush isn't installed. Installing drush..."
		install_drush	
	fi

#	echo "Checking if curl is installed..."
#	if ! command_exists "curl"; then
#		echo "curl not installed. Exitting..."
#		exit_script "Curl isn't installed. Please install it and rerun the script." "$MISSING_DEPEND"
#	fi

	echo "Checking if sqlite is installed..."
	if ! command_exists "sqlite3"; then
		echo "Sqlite not installed. Installing sqlite..."
		install_sqlite
	fi

	echo "Checking if drupal console is installed..."
	if ! command_exists drupal; then
		echo "Drupal console isn't installed. Installing..."
		install_drupal_console
	fi
}

### FUNCTIONS END ###


### SCRIPTS BEGIN HERE ###

# Notify or install if any depdendencies are missing

echo "Entering $temp_dir folder..."
cd $temp_dir

check_dependences

echo " Setting OS specific variables..."
set_default_os_variables

print_prompter "Enter installation path [$inst_path_default]:"
read install_path

if [ -z "$install_path" ]; then
	install_path="$inst_path_default"
else
    while [ ! -d $install_path ]; do
        print_prompter "Folder not found: ${install_path}. Try again:"
        read install_path
    done
fi

print_prompter "Enter context root name [$context_root_default]:"
read context_root

if [ -z "$context_root" ]; then
	context_root="$context_root_default"      
fi
# Set full installation path
temp_full_install_path="$temp_dir/$context_root"
full_install_path="${install_path}/$context_root"



print_prompter "Enter site name [$site_name_default]:"
read site_name

if [ -z "$site_name" ]; then
	site_name="$site_name_default"
fi

print_prompter "Enter site user [$site_user_default]:"
read site_user

if [ -z "$site_user" ]; then
	site_user="$site_user_default"
fi

print_prompter "Enter site password [$site_pass_default]:"
stty -echo
read site_password
stty echo 

if [ -z "$site_password" ]; then
	site_password="$site_pass_default"
fi

echo
print_prompter "Enter database user [$db_user_default]:"
read db_user

if [ -z "$db_user" ]; then
	db_user=$db_user_default
fi

print_prompter "Enter database password:"
stty -echo
read db_password
stty echo 

if [ -z $db_password ]; then
	print_prompter "[WARNING] Database password is required! Enter database password:"
	stty -echo
	read db_password
	stty echo 
else 
    while ! mysql -u root -p$db_password  -e ";" ; do
	    print_prompter "Try again"
	    stty -echo
    	read db_password
	    stty echo 
    done
fi
echo

print_prompter "Enter database name [$db_name_default]:"
read db_name

if [ -z "$db_name" ]; then
	db_name=$db_name_default
fi

echo

echo "Downloadin drupal..."
drush dl drupal 

echo "Renaming drupal folder to ${context_root}..."
mv drupal-8* "$context_root"

echo "Entering ${temp_full_install_path}..."
cd $temp_full_install_path

echo "Installing drupal..."
drush -y --notify site-install --site-name="$site_name" --account-name="$site_user" --account-pass="$site_password" \
  --db-url=mysql://${db_user}:${db_password}@localhost/${db_name} 


echo "Setting up common drupal folders..."
create_common_folders $temp_full_install_path

echo
### Check if drupal modules are requested
if confirm "Would you like to install drupal modules? (y/n):"; then
	install_modules
fi

echo
### Check if a new theme is requested
if confirm "Would you like to enable or download some theme? (y/n):"; then
	install_theme

	if [ $? -eq 0 ]; then       	 
		theme_lower="${theme,,}"
	  # Check if script supports creating enabled theme sub-theme creation
  	if [[ "$available_sub_themes" =~ "$theme_lower" ]]; then
			echo
	 		if confirm "Script is able to crete $theme sub-theme for you, would you like that? (y/n):" ; then   				
				echo
		  	create_"${theme_lower}"_subtheme  
			fi 
    fi        
	fi	

fi

echo "Enabling debug mode..."
drupal site:mode dev
#echo "Clearing drupal cache..."
#drush cr

echo "Moving $temp_full_install_path to ${install_path}..."
mv $temp_full_install_path $install_path || echo "Something went wrong while moving the installed drupal to $inst_full_path" -1
cd $full_install_path

echo "Making sites/default/files writable..."
chmod 777 -R sites/default/files || echo "Failed to set writable permissions to the sites/default/files folder. Please you set them."

echo
echo "Congrats, you've completed full installation! Check the info below:"
echo

echo "Current directory: $PWD"
echo "Installation folder: $context_root"
echo "Site name: $site_name"
echo "Site user name: $site_user"
echo "Site password: $site_password"
echo "Database user: $db_user"
echo "Database name: $db_name"
echo "Theme enabled: $theme"

echo
echo "Unsetting variables..."
cleanup_variables

echo
echo "OK, get to work now!"
stty echo 

exit 0