Custom prompt for fish shell. Place in ~/.config/fish/functions

fish_prompt.fish

function fish_prompt
  and set retc normal
  or set retc red
  tty | string match -q -r tty
  and set tty tty
  or set tty pts

  set_color $retc
  if [ $tty = tty ]
    echo -n .-
  else
    echo -n '┬─'
  end
  set_color -o normal
  echo -n [
  if test "$USER" = root -o "$USER" = toor
    set_color -o red
  else
    set_color -o white
  end
  echo -n "su"
  set_color -o white
  echo -n @
  if [ -z "$SSH_CLIENT" ]
    set_color -o blue
  else
    set_color -o cyan
  end
  echo -n "root" #(prompt_hostname)
  set_color -o white
  echo -n :(pwd|sed "s=$HOME=~=")
  set_color -o normal
  echo -n ']'
  echo
  set_color normal
  for job in (jobs)
    set_color $retc
    if [ $tty = tty ]
      echo -n '; '
    else
      echo -n '│ '
    end
    set_color brown
    echo $job
  end
  set_color normal
  set_color $retc
  if [ $tty = tty ]
    echo -n "'->"
  else
    echo -n '╰─>'
  end
  set_color normal
end