access_to_tools.sh

#!/bin/bash

###################
# Access to Tools #
###################

# Variables

## get current directory path
pushd `dirname $0` > /dev/null
	directory=`pwd`
popd > /dev/null

## path to composer config
composer_config="$directory/composer.json"

## path to node config
node_config="$directory/package.json"

## path to bower config
bower_config="$directory/bower.json"

# Functions

## check if is installed
is_installed() {
	type "$1" &> /dev/null ;
}

## install composer
install_composer() {
	cd $HOME
	curl -sS https://getcomposer.org/installer | php
	echo -e "\n# Composer\nalias composer=\"php \$HOME/composer.phar\"" >> $HOME/.bash_profile
	source $HOME/.bash_profile

	## install composer dependencies in composer.json
	if [ -f $composer_config ]; then 
		composer install $composer_config
	fi
}

## install homebrew
install_brew() {
	ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
	brew update
	brew doctor
	export PATH="/usr/local/bin:$PATH"
}

## install node
install_node() {
	brew install node

	## install node modules in package.json
	if [ -f $node_config ]; then 
		npm install $node_config
	fi
}

## install bower
install_bower() {
	npm install -g bower

	## install bower components in bower.json
	if [ -f $bower_config ]; then 
		bower install $bower_config
	fi
}

## install lolcat
install_lolcat() {
	gem install lolcat
}

# Install

## list of requirements
requirements="brew node bower composer lolcat"

## loop through requirements
for requirement in $requirements
do
	### install if not already installed
	if ! is_installed $requirement ; then
		echo "Installing $requirement"
		eval "install_$requirement"
	else
		echo "$requirement is already installed"
	fi
done