utils.sh

#!/usr/bin/env bash

brew_install() {
  declare -r CMD="$3"
  declare -r FORMULA="$2"
  declare -r FORMULA_READABLE_NAME="$1"

  if brew "$CMD" list "$FORMULA" &> /dev/null; then
    print_success "$FORMULA_READABLE_NAME"
  else
    execute "brew $CMD install $FORMULA" "$FORMULA_READABLE_NAME"
  fi
}

answer_is_yes() {
  [[ "$REPLY" =~ ^[Yy]$ ]] \
    && return 0 \
    || return 1
}

ask() {
  print_question "$1"
  read
}

ask_for_confirmation() {
  print_question "$1 (y/n) "
  read -n 1
  printf "\n"
}

ask_for_sudo() {

  # Ask for the administrator password upfront
  sudo -v &> /dev/null

  # Update existing `sudo` time stamp until this script has finished
  # https://gist.github.com/cowboy/3118588
  while true; do
    sudo -n true
    sleep 60
    kill -0 "$$" || exit
  done &> /dev/null &

}

cmd_exists() {
  command -v "$1" &> /dev/null
  return $?
}

execute() {
  eval "$1" &> /dev/null
  print_result $? "${2:-$1}"
}

get_answer() {
  printf "$REPLY"
}

is_git_repository() {
  git rev-parse &> /dev/null
  return $?
}

mkd() {
  if [ -n "$1" ]; then
    if [ -e "$1" ]; then
      if [ ! -d "$1" ]; then
        print_error "$1 - a file with the same name already exists!"
      else
        print_success "$1"
      fi
    else
      execute "mkdir -p $1" "$1"
    fi
  fi
}

print_error() {
  print_in_red "  [✖] $1 $2\n"
}

print_in_green() {
  printf "\e[0;32m$1\e[0m"
}

print_in_purple() {
  printf "\e[0;35m$1\e[0m"
}

print_in_red() {
  printf "\e[0;31m$1\e[0m"
}

print_in_yellow() {
  printf "\e[0;33m$1\e[0m"
}

print_info() {
  print_in_purple "\n $1\n\n"
}

print_question() {
  print_in_yellow "  [?] $1"
}

print_result() {
  [ $1 -eq 0 ] \
    && print_success "$2" \
    || print_error "$2"

  return $1
}

print_success() {
  print_in_green "  [✔] $1\n"
}