setup-nodesource-deb
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	#!/bin/bash

	# Discussion, issues and change requests at:
	# https://github.com/nodesource/distributions
	#
	# Script to install the NodeSource Node.js v6.x repo onto a
	# Debian or Ubuntu system.
	#
	# Run as root or insert `sudo -E` before `bash`:
	#
	# curl -sL https://deb.nodesource.com/setup_6.x \| bash -
	# or
	# wget -qO- https://deb.nodesource.com/setup_6.x \| bash -
	#

	export DEBIAN_FRONTEND=noninteractive

	print_status() {
	echo
	echo "## $1"
	echo
	}

	bail() {
	echo 'Error executing command, exiting'
	exit 1
	}

	exec_cmd_nobail() {
	echo "+ $1"
	bash -c "$1"
	}

	exec_cmd() {
	exec_cmd_nobail "$1" \|\| bail
	}


	print_status "Installing the NodeSource Node.js v6.x repo..."


	PRE_INSTALL_PKGS=""

	# Check that HTTPS transport is available to APT
	# (Check snaked from: https://get.docker.io/ubuntu/)

	if [ ! -e /usr/lib/apt/methods/https ]; then
	PRE_INSTALL_PKGS="${PRE_INSTALL_PKGS} apt-transport-https"
	fi

	if [ ! -x /usr/bin/lsb_release ]; then
	PRE_INSTALL_PKGS="${PRE_INSTALL_PKGS} lsb-release"
	fi

	if [ ! -x /usr/bin/curl ] && [ ! -x /usr/bin/wget ]; then
	PRE_INSTALL_PKGS="${PRE_INSTALL_PKGS} curl"
	fi

	# Populating Cache
	print_status "Populating apt-get cache..."
	exec_cmd 'apt-get update'

	if [ "X${PRE_INSTALL_PKGS}" != "X" ]; then
	print_status "Installing packages required for setup:${PRE_INSTALL_PKGS}..."
	# This next command needs to be redirected to /dev/null or the script will bork
	# in some environments
	exec_cmd "apt-get install -y${PRE_INSTALL_PKGS} > /dev/null 2>&1"
	fi

	DISTRO=$(lsb_release -c -s)

	check_alt() {
	if [ "X${DISTRO}" == "X${2}" ]; then
	echo
	echo "## You seem to be using ${1} version ${DISTRO}."
	echo "## This maps to ${3} \"${4}\"... Adjusting for you..."
	DISTRO="${4}"
	fi
	}

	check_alt "Kali" "sana" "Debian" "jessie"
	check_alt "Debian" "stretch" "Debian" "jessie"
	check_alt "Linux Mint" "maya" "Ubuntu" "precise"
	check_alt "Linux Mint" "qiana" "Ubuntu" "trusty"
	check_alt "Linux Mint" "rafaela" "Ubuntu" "trusty"
	check_alt "Linux Mint" "rebecca" "Ubuntu" "trusty"
	check_alt "Linux Mint" "rosa" "Ubuntu" "trusty"
	check_alt "LMDE" "betsy" "Debian" "jessie"
	check_alt "elementaryOS" "luna" "Ubuntu" "precise"
	check_alt "elementaryOS" "freya" "Ubuntu" "trusty"
	check_alt "Trisquel" "toutatis" "Ubuntu" "precise"
	check_alt "Trisquel" "belenos" "Ubuntu" "trusty"
	check_alt "BOSS" "anokha" "Debian" "wheezy"
	check_alt "bunsenlabs" "bunsen-hydrogen" "Debian" "jessie"
	check_alt "Tanglu" "chromodoris" "Debian" "jessie"

	if [ "X${DISTRO}" == "Xdebian" ]; then
	print_status "Unknown Debian-based distribution, checking /etc/debian_version..."
	NEWDISTRO=$([ -e /etc/debian_version ] && cut -d/ -f1 < /etc/debian_version)
	if [ "X${NEWDISTRO}" == "X" ]; then
	print_status "Could not determine distribution from /etc/debian_version..."
	else
	DISTRO=$NEWDISTRO
	print_status "Found \"${DISTRO}\" in /etc/debian_version..."
	fi
	fi

	print_status "Confirming \"${DISTRO}\" is supported..."

	if [ -x /usr/bin/curl ]; then
	exec_cmd_nobail "curl -sLf -o /dev/null 'https://deb.nodesource.com/node_6.x/dists/${DISTRO}/Release'"
	RC=$?
	else
	exec_cmd_nobail "wget -qO /dev/null -o /dev/null 'https://deb.nodesource.com/node_6.x/dists/${DISTRO}/Release'"
	RC=$?
	fi

	if [[ $RC != 0 ]]; then
	print_status "Your distribution, identified as \"${DISTRO}\", is not currently supported, please contact NodeSource at https://github.com/nodesource/distributions/issues if you think this is incorrect or would like your distribution to be considered for support"
	exit 1
	fi

	if [ -f "/etc/apt/sources.list.d/chris-lea-node_js-$DISTRO.list" ]; then
	print_status 'Removing Launchpad PPA Repository for NodeJS...'

	exec_cmd_nobail 'add-apt-repository -y -r ppa:chris-lea/node.js'
	exec_cmd "rm -f /etc/apt/sources.list.d/chris-lea-node_js-${DISTRO}.list"
	fi

	print_status 'Adding the NodeSource signing key to your keyring...'

	if [ -x /usr/bin/curl ]; then
	exec_cmd 'curl -s https://deb.nodesource.com/gpgkey/nodesource.gpg.key \| apt-key add -'
	else
	exec_cmd 'wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key \| apt-key add -'
	fi

	print_status 'Creating apt sources list file for the NodeSource Node.js v6.x repo...'

	exec_cmd "echo 'deb https://deb.nodesource.com/node_6.x ${DISTRO} main' > /etc/apt/sources.list.d/nodesource.list"
	exec_cmd "echo 'deb-src https://deb.nodesource.com/node_6.x ${DISTRO} main' >> /etc/apt/sources.list.d/nodesource.list"

	print_status 'Running `apt-get update` for you...'

	exec_cmd 'apt-get update'

	print_status 'Run `apt-get install nodejs` (as root) to install Node.js v6.x and npm'

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