Simplify installer.sh and macOS support

install.sh

@@ -16,122 +16,19 @@ if ! nix --version &>/dev/null; then
    echo "[I] Installed Nix."
 fi
 
-E='echo -e'
-e='echo -en'
-trap "R;exit" 2
-ESC=$($e "\e")
-TPUT() { $e "\e[${1};${2}H"; }
-CLEAR() { $e "\ec"; }
-CIVIS() { $e "\e[?25l"; }
-MARK() { $e "\e[7m"; }
-UNMARK() { $e "\e[27m"; }
-R() {
-   CLEAR
-   stty sane
-   CLEAR
-}
-HEAD() {
-   for each in $(seq 1 11); do
-      $E "   \xE2\x94\x82                                          \xE2\x94\x82"
-   done
-   MARK
-   TPUT 1 5
-   $E "            Trude's Toolkit               "
-   UNMARK
-}
-i=0
-FOOT() {
-   MARK
-   TPUT 11 5
-   $E " UP \xE2\x86\x91 \xE2\x86\x93 DOWN    ENTER - SELECT,NEXT       "
-   UNMARK
-}
-ARROW() {
-   IFS= read -s -n1 key 2>/dev/null >&2
-   if [[ $key = $ESC ]]; then
-      read -s -n1 key 2>/dev/null >&2
-      if [[ $key = \[ ]]; then
-         read -s -n1 key 2>/dev/null >&2
-         if [[ $key = A ]]; then echo up; fi
-         if [[ $key = B ]]; then echo dn; fi
-      fi
-   fi
-   if [[ "$key" == "$($e \\x0A)" ]]; then echo enter; fi
-}
-M0() {
-   TPUT 4 11
-   $e "Set up Generic System"
-}
-M1() {
-   TPUT 5 11
-   $e "Set up NixOS"
-}
-M2() {
-   TPUT 6 11
-   $e "Set up macOS"
-}
-M3() {
-   TPUT 8 11
-   $e "EXIT"
-}
-LM=3
-MENU() { for each in $(seq 0 $LM); do M${each}; done; }
-POS() {
-   if [[ $cur == up ]]; then ((i--)); fi
-   if [[ $cur == dn ]]; then ((i++)); fi
-   if [[ $i -lt 0 ]]; then i=$LM; fi
-   if [[ $i -gt $LM ]]; then i=0; fi
-}
-REFRESH() {
-   after=$((i + 1))
-   before=$((i - 1))
-   if [[ $before -lt 0 ]]; then before=$LM; fi
-   if [[ $after -gt $LM ]]; then after=0; fi
-   if [[ $j -lt $i ]]; then
-      UNMARK
-      M$before
-   else
-      UNMARK
-      M$after
-   fi
-   if [[ $after -eq 0 ]] || [ $before -eq $LM ]; then
-      UNMARK
-      M$before
-      M$after
-   fi
-   j=$i
-   UNMARK
-   M$before
-   M$after
-}
-INIT() {
-   R
-   HEAD
-   FOOT
-   MENU
-}
-SC() {
-   REFRESH
-   MARK
-   $S
-   $b
-   cur=$(ARROW)
-}
-ES() {
-   MARK
-   $e "ENTER = main menu "
-   $b
-   read
-   INIT
-}
-INIT
-while [[ "$O" != " " ]]; do
-   case $i in
-   0)
-      S=M0
-      SC
-      if [[ $cur == enter ]]; then
-         R
+echo
+echo "####################"
+echo "# Trude's Dotfiles #"
+echo "####################"
+echo
+echo "1) Set up Generic System"
+echo "2) Set up NixOS"
+echo "3) Set up macOS"
+echo
+read -p "> " main_menu
+
+case $main_menu in
+   1)
       # Install Home-manager
       nix-channel --add https://github.com/nix-community/home-manager/archive/master.tar.gz home-manager
       nix-channel --update
@@ -143,41 +40,20 @@ while [[ "$O" != " " ]]; do
       cp ./nix/home.nix $HOME/.config/home-manager/home.nix
 
       home-manager -b backup switch
-         ES
-      fi
       ;;
-   1)
-      S=M1
-      SC
-      if [[ $cur == enter ]]; then
-         R
-         # Dotfiles for NixOS
+   2)
       sudo cp -rf ./nix/nixos/* /etc/nixos/
       sudo cp -f ./nix/home.nix /etc/nixos/
       sudo nixos-rebuild switch --flake /etc/nixos#default
-         ES
-      fi
       ;;
-   2)
-      S=M2
-      SC
-      if [[ $cur == enter ]]; then
-         R
+   3)
       mkdir -p ~/.config/nix-darwin/
       cp -rf ./nix/macOS/* ~/.config/nix-darwin/
       cp -f ./nix/home.nix ~/.config/nix-darwin/
       nix run nix-darwin -- switch --flake ~/.config/nix-darwin
-         ES
-      fi
       ;;
-   3)
-      S=M3
-      SC
-      if [[ $cur == enter ]]; then
-         R
-         exit 0
-      fi
+   *)
+      echo "Invalid option selected."
+      return 1
       ;;
-   esac
-   POS
-done
+esac