feat: restructure repo

helpers/installer.sh

@@ -0,0 +1,35 @@
+isInstalled() {
+  if [ "$(which $1)" != "" ]; then
+    return 0
+  fi
+  return 1
+}
+
+installOptional() {
+  echo "install optional '$*'"
+
+  # Check if any of the listed programs are installed
+  # if not install the first one;
+  for prog in "$@"; do
+    if isInstalled $prog; then
+      echo "$prog is installed"
+      break
+    fi
+  done
+
+  install $1
+
+}
+
+install() {
+  # Check if program is already installed
+  if isInstalled $1; then
+    echo " - $1 is already installed"
+  else
+    echo " - installing $1 ..."
+    apt-get install $1 -y >/dev/null
+    echo " - finished"
+  fi
+}
+
+[[ "${1}" != "--source-only" ]] && install "${@}"

helpers/linker.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+linkFile() {
+  #Move old file
+  if [ -f "$HOME/$1" ]; then
+    echo " - moving old file to $1_bak"
+    mv "$HOME/$1" "$HOME/$1_bak"
+  fi
+
+  echo " - linking $1 --> $HOME/$1"
+
+  ln -s "$(pwd)/configs/$1" "$HOME/$1"
+}
+
+[[ "${1}" != "--source-only" ]] && linkFile "${@}"

helpers/multiselect.sh

@@ -0,0 +1,108 @@
+#!/bin/bash
+
+# from SO: https://stackoverflow.com/a/54261882/317605 (by https://stackoverflow.com/users/8207842/dols3m)
+
+function multiselect() {
+
+  # little helpers for terminal print control and key input
+  ESC=$(printf "\033")
+  cursor_blink_on() { printf "$ESC[?25h"; }
+  cursor_blink_off() { printf "$ESC[?25l"; }
+  cursor_to() { printf "$ESC[$1;${2:-1}H"; }
+  print_inactive() { printf "$2   $1 "; }
+  print_active() { printf "$2  $ESC[7m $1 $ESC[27m"; }
+  get_cursor_row() {
+    IFS=';' read -sdR -p $'\E[6n' ROW COL
+    echo ${ROW#*[}
+  }
+  key_input() {
+    local key
+    IFS= read -rsn1 key 2>/dev/null >&2
+    if [[ $key = "" ]]; then echo enter; fi
+    if [[ $key = $'\x20' ]]; then echo space; fi
+    if [[ $key = $'\x1b' ]]; then
+      read -rsn2 key
+      if [[ $key = [A ]]; then echo up; fi
+      if [[ $key = [B ]]; then echo down; fi
+    fi
+  }
+  toggle_option() {
+    local arr_name=$1
+    eval "local arr=(\"\${${arr_name}[@]}\")"
+    local option=$2
+    if [[ ${arr[option]} == true ]]; then
+      arr[option]=
+    else
+      arr[option]=true
+    fi
+    eval $arr_name='("${arr[@]}")'
+  }
+
+  local retval=$1
+  local options
+  local defaults
+
+  IFS=';' read -r -a options <<<"$2"
+  if [[ -z $3 ]]; then
+    defaults=()
+  else
+    IFS=';' read -r -a defaults <<<"$3"
+  fi
+  local selected=()
+
+  for ((i = 0; i < ${#options[@]}; i++)); do
+    selected+=("${defaults[i]:-false}")
+    printf "\n"
+  done
+
+  # determine current screen position for overwriting the options
+  local lastrow=$(get_cursor_row)
+  local startrow=$(($lastrow - ${#options[@]}))
+
+  # ensure cursor and input echoing back on upon a ctrl+c during read -s
+  trap "cursor_blink_on; stty echo; printf '\n'; exit" 2
+  cursor_blink_off
+
+  local active=0
+  while true; do
+    # print options by overwriting the last lines
+    local idx=0
+    for option in "${options[@]}"; do
+      local prefix="   [ ]"
+      if [[ ${selected[idx]} == true ]]; then
+        prefix="   [x]"
+      fi
+
+      cursor_to $(($startrow + $idx))
+      if [ $idx -eq $active ]; then
+        print_active "$option" "$prefix"
+      else
+        print_inactive "$option" "$prefix"
+      fi
+      ((idx++))
+    done
+
+    # user key control
+    case $(key_input) in
+    space) toggle_option selected $active ;;
+    enter) break ;;
+    up)
+      ((active--))
+      if [ $active -lt 0 ]; then active=$((${#options[@]} - 1)); fi
+      ;;
+    down)
+      ((active++))
+      if [ $active -ge ${#options[@]} ]; then active=0; fi
+      ;;
+    esac
+  done
+
+  # cursor position back to normal
+  cursor_to $lastrow
+  printf "\n"
+  cursor_blink_on
+
+  eval $retval='("${selected[@]}")'
+}
+
+[[ "${1}" != "--source-only" ]] && multiselect "${@}"

helpers/prompt.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+prompt() {
+    read -p "$1 (y/n)? " choice
+    case "$choice" in
+    y | Y) echo "yes" ;;
+    n | N) echo "no" ;;
+    *) echo "invalid" ;;
+    esac
+}
+
+[[ "${1}" != "--source-only" ]] && prompt "${@}"