Install mas-cli and automate App Store installations.

mas_setup.sh

#!/bin/bash

CURRENT_USER=$(stat -f %Su /dev/console)
CURRENT_USER_UID=$(id -u "$CURRENT_USER")
MAS_PKG=/private/tmp/mas.pkg

APP_LIST=(
	441258766
	955297617
	409183694
	409201541
	409203825
	1493996622
	1376402589
	191449274
	1503136033
	1121192229
	1352778147
	747648890
	1289583905
	497799835
)

###############################################################################
# SANITY CHECK
###############################################################################

# Need admin privileges to install mas-cli
if [[ "$EUID" -ne 0 ]]
	then echo "Please run as root"
	exit 1
fi

# Retrieve and clean-up url to latest installer pkg from GitHub
MAS_PKG_URL=$(curl -s https://api.github.com/repos/mas-cli/mas/releases/latest \
	| grep "mas.pkg" \
	| cut -d : -f 2,3 \
	| tr -d \", \
	| sed -n 2p \
	| awk '{$1=$1};1')

###############################################################################
# FUNCTIONS
###############################################################################

# Since we are running as root, checking App Store sign in will fail
run_as_user () {
	if [[ "$CURRENT_USER" != "loginwindow" ]]
	then
		launchctl asuser "$CURRENT_USER_UID" sudo -u "$CURRENT_USER" "$@"
	else
		echo "No user logged in, how is this running?"
	fi
}

install_mas () {
	curl -L "$MAS_PKG_URL" -o "$MAS_PKG"
	
	if [[ -f "$MAS_PKG" ]]
	then
		echo "Installing mas-cli..."
		installer -pkg "$MAS_PKG" -target "/"
		sleep 2
		echo "Cleaning up /tmp..."
		rm "$MAS_PKG"
	else
		echo "Failed to download mas.pkg..."
		exit 1
	fi
}

# Are we signed into the App Store?
signed_in () {
	run_as_user mas account &>/dev/null && return 0 || return 1
}

# Install all app ID's provided above
install_apps() {
	for APP in "${APP_LIST[@]}"
	do
		run_as_user mas install "$APP"
	done
}

###############################################################################
# MAIN
###############################################################################

# Ensure mas installed either by Mac Ports or Homebrew/pkg installer
if [[ ! -x /usr/local/bin/mas ]]
then
	echo "couldn't find mas-cli binary, attempting to download and install..."
	install_mas
fi

if signed_in
then
	echo "Installing specified apps..."
	install_apps
else
	echo "Not signed into App Store!"
	echo "Opening App Store.app, please sign in..."
	open -a App\ Store.app

	# Wait for sign in...
	until signed_in
	do
		sleep 5
	done

	echo "Sign in successful, installing specified apps..."
	install_apps
fi

exit 0