Initial commit

install.sh

@@ -0,0 +1,108 @@
+#!/bin/sh
+set -e
+
+### COLORS ###
+RED='\033[0;31m'
+LGREEN='\033[1;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+BOLD=$(tput bold)
+NORM=$(tput sgr0)
+
+### VARS ###
+CURPHASE=1
+MAXPHASE=2
+
+### OPTIONS AND PARAMETERS ###
+
+usage() {
+	printf "Usage: $0 [-nhv] (-p | [-d] <user>)\n  -p: Install packages only\n  -d: Install dotfiles only\n  -h: Display this message\n  -n: Do not prompt for confirmation\n  -v: Verbose output\n  user: User that the dotfiles should be installed to\n"
+	exit 2
+}
+
+set_var()
+{
+	local varname=$1
+	shift
+	if [ -z "${!varname}" ]; then
+		eval "$varname=\"$1\""
+	else
+		echo "Error: $2 already set"
+		usage
+	fi
+}
+
+exclusive()
+{
+	echo "Error: $1 exclusive with $2"
+	usage
+}
+
+while getopts ":nvhdpu:" c; do
+	case $c in
+		d) 
+			[ "$INSTALL" = PACKAGES ] && exclusive '-p' '-d'	
+			MAXPHASE=$(($MAXPHASE-1))
+			set_var INSTALL DOTFILES "-d" ;;
+		p) 
+			[ "$INSTALL" = DOTFILES ] && exclusive '-p' '-d'
+			[ -n "$INSTALLUSER" ] && exclusive '-p' '<user>'
+			MAXPHASE=$(($MAXPHASE-1))
+			set_var INSTALL PACKAGES "-p" ;;
+		u) 
+			[ "$INSTALL" = PACKAGES ] && exclusive '-p' '<user>'	
+			set_var INSTALLUSER $OPTARG "-u" ;;
+		n) NOCONFIRM=true ;;
+		v) VERBOSE=true ;;
+		h) usage ;;
+		?) echo "Unknown option -$OPTARG"; usage ;;
+	esac
+done
+
+INSTALL=${INSTALL:-ALL}
+shift $((OPTIND-1))
+
+### VALIDATE USER ###
+
+[ -z "$INSTALLUSER" ] && [ "$INSTALL" != "PACKAGES" ] && echo "Error: <user> required" && usage
+
+if [ -n "$INSTALLUSER" ]; then
+	HOMEDIR="$(cat /etc/passwd | awk -F: '$1 ~ /^'$INSTALLUSER'$/ {print $6}')"
+	[ -z "$HOMEDIR" ] && echo "Error: User $INSTALLUSER does not exist" && exit 2
+fi
+
+### FORCE ROOT ###
+
+[ $(whoami) != "root" ] && echo "Please run as root" && exit 1
+
+### ASK FOR CONFIRMATION ###
+
+if [ ! $NOCONFIRM ]; then
+	echo "${BOLD}Please confirm operation:${NORM}"
+	echo -ne "Installing ${LGREEN}${INSTALL@L}${NC}"
+	[ -n "$INSTALLUSER" ] && echo -ne " for ${LGREEN}$INSTALLUSER ($HOMEDIR)${NC}"
+	printf "\n"
+	echo -n "Continue installation? [y/N] "
+	read ans
+	case $ans in
+		y|Y) break ;;
+		*) exit 0 ;;
+	esac
+fi
+
+### INSTALLATION ###
+[ $VERBOSE ] && set -x
+
+printphase() {
+	echo -e "${BOLD}${YELLOW}[$CURPHASE/$MAXPHASE] $1 phase${NC}${NORM}"
+	CURPHASE=$(($CURPHASE+1))
+}
+
+# PACKAGES
+if [ "$INSTALL" != "DOTFILES" ]; then
+	printphase "Package installation"
+	
+	echo -n "Upgrading system... "
+	_DUMMY=$(pacman -Sqyu --noconfirm 2>&1 > /dev/null)
+	echo "done"
+fi