Added new helper functions to make script more interactive, and implemented them.

bare-arch-install.sh

@@ -1,22 +1,114 @@
 #!/usr/bin/bash
 
+# BEGIN: Helper Functions
+
+get_choices () {
+	local PROMPT="$1"
+	shift
+	local -n OUTPUT_VAR="$2"
+	shift 
+	local -a OPTIONS=( $@ )
+
+	select item in ${OPTIONS[@]} quit; do
+		case $item in
+			quit)
+				return 0
+				;;
+			?)
+				continue
+				;;
+			*)
+				if [[ "$item" ]]; then
+					OUTPUT_VAR+=( "$item" )
+				fi
+				;;
+		esac
+	done
+	
+}
+get_choice () {
+	local PROMPT="$1"
+	shift
+	local -n OUTPUT_VAR="$2"
+	shift 
+	local -a OPTIONS=( $@ )
+
+	select item in ${OPTIONS[@]} quit; do
+		case $item in
+			quit)
+				return 0
+				;;
+			?)
+				continue
+				;;
+
+			*)
+				if [[ "$item" ]]; then
+					OUTPUT_VAR="$item"
+					return 0
+				fi
+				;;
+		esac
+	done
+	
+}
+
+get_yes_no () {
+	local PROMPT="${1:?"get_yes_no: Prompt was not provided"} "
+	local CHOICE_REGEX='(y|n|yes|no)'
+	local ANSWER
+	while true; do
+		read -p "$PROMPT" ANSWER
+		ANSWER="${ANSWER,,}"
+
+		if [[ "$ANSWER" =~ ^$CHOICE_REGEX$ ]]; then
+			case $ANSWER in
+				y | yes)
+				  return 0
+				  ;;
+				n | no)
+				  return 1
+				  ;;
+			esac
+		else
+			echo "$ANSWER is not acceptible, please try again"
+		fi
+	done
+}
+
+get_answer () {
+	local PROMPT="${1:?"get_answer: Prompt was not provided"}"
+	local -n OUTER_VAR="${2:?"get_answer: Return variable not provided"}"
+	local ANSWER
+
+	while true; do
+		read -p "$PROMPT" ANSWER
+
+		if get_yes_no "Are you sure $ANSWER is what you want? (y/n): "; then
+			OUTER_VAR="$ANSWER"
+			return 
+		fi
+	done
+
+}
+
+# END: Helper Functions
 
 # BEGIN: Variables
 
-HOSTNAME="ExampleHostname"
+HOSTNAME=""
-BOOT_METHOD="${1:?"Boot method was not provided. (BIOS, EFI)"}"
+get_answer "What is the hostname of this machine?" HOSTNAME
-BOOT_METHOD="${BOOT_METHOD^^}"
+
+BOOT_METHOD=""
+get_choice "What is your boot method?" BOOT_METHOD BIOS EFI
 
-[[ ! "$BOOT_METHOD" =~ ^(EFI|BIOS)$ ]] && {
-	echo "Your boot method $BOOT_METHOD, is not acceptible. Please provide a vaild one"
 exit 
-}
-
 DISK="${2:?"Disk was not provided"}"
 [[ ! -b $DISK ]] && {
 	echo "Your disk ($DISK) does not exist. Please provide a valid one"
 	exit
 }
+
 EFI_PARTITION=${DISK}1
 SWAP_PARTITION=${DISK}2
 ROOT_PARTITION=${DISK}3