this is my fish prompt

fish_prompt.fish

function fish_prompt
    set -l last_status $status
    if not set -q VIRTUAL_ENV_DISABLE_PROMPT
        set -g VIRTUAL_ENV_DISABLE_PROMPT true
    end
    set_color --bold yellow
    printf '%s' $USER

    set_color magenta
    printf ' in '

    set_color cyan
    printf '%s ' (prompt_pwd)

    set isgit (git rev-parse --abbrev-ref HEAD 2> /dev/null)
    set_color white
    if test -n "$isgit"
	printf '\033[1m</ %s >\033[0m ' $isgit
    end
    if test $last_status -eq 0
      set_color --bold brgreen
      printf '[%s]' $last_status
    else
      set_color --bold brred
      printf '[%s]' $last_status
    end
    set_color --bold white
    printf '$ '
    set_color normal

end