verbose () {
  echo "${color_green}$1${color_normal}"
}
error () {
  echo "${color_red}$1${color_normal}"
        }
warning () {
  echo "${color_yellow}$1${color_normal}"
}
# check for color support
if test -t 1; then
  # see if it supports colors...
  ncolors=$(tput colors)
  if test -n "$ncolors" && test $ncolors -ge 8; then
    color_normal="$(tput sgr0)"
    color_red="$(tput setaf 1)"
    color_green="$(tput setaf 2)"
    color_yellow="$(tput setaf 3)"
  fi
fi