(feat) add help menu and some pacman checks

brick.sh

@@ -40,7 +40,7 @@ brickdb() {
 }
 
 pkg_installed() {
-	if [ ! -z $(echo "$BRICKS_INSTALLED" | grep "$1") ]; then
+	if [ ! -z $(echo "$BRICKS_INSTALLED" | grep -E "^$1 \\\\d") ]; then
 		return 0
 	fi
 	return 1
@@ -53,7 +53,7 @@ user_confirm() {
 	fi
 
 	while true; do
-		read -r -n 1 -p "${1:-Continue?} [Y/n]: " REPLY
+		read -r -n 1 -p "$(inf "- ${1:-Continue?} [Y/n]: ")" REPLY
 		case $REPLY in
 			[yY]) echo ; return 0 ;;
 			[nN]) echo ; return 1 ;;
@@ -150,6 +150,14 @@ while [[ $# -gt 0 ]]; do
 			echo "https://git.blek.codes/blek/os"
 			exit 0
 			;;
+		-h|--help)
+			echo "brick $version (gpl 3 only)"
+			inf  "Usage: $0 [PACKAGES]"
+			inf  "$(inf "-h --help \t - Display this message")"
+			inf  "$(inf "-v --version \t - Print version and exit")"
+			inf  "$(inf "-L           \t - List all packages")"
+			exit 0
+			;;
 		-*)
 			# meh domt need unkonw args
 			shift;;
@@ -186,8 +194,11 @@ if [ "${#PKGS[@]}" == "0" ]; then
 	inf "nothing to do"
 	exit
 else
-	inf "Packages to install: ${PKGS[@]}"
-	user_confirm
+	inf "packages to install: ${PKGS[@]}"
+	if ! user_confirm; then
+		inf "canceled"
+		exit
+	fi
 fi
 
 PACDEPS=()
@@ -220,6 +231,12 @@ if [ "${#PACDEPS[@]}" != "0" ]; then
 
 	# then there might actually be no work to be done
 	if [ "$TO_INSTALL" != "" ]; then
+
+		if [ -f /var/lib/pacman/db.lck ]; then
+			errcho "pacman is running now; can't install pacman deps"
+			errcho "if you are sure that pacman is not running, delete /var/lib/pacman/db.lck manually"
+		fi
+
 		inf "installing pacman packages:"
 		inf "$TO_INSTALL"