fish_prompt.fish

set fish_credentials_color blue
set fish_git_dirty_color red

function parse_git_dirty
  git diff --quiet HEAD ^&-
  if test $status = 1
    set_color $fish_git_dirty_color
    echo -n "Δ"
    set_color normal
  end
end

function parse_git_branch
  set -l branch (git branch 2>/dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/')
  echo -n $branch
  echo -n (parse_git_dirty)
end

function fish_prompt
  set_color $fish_credentials_color
  echo -n (whoami)
  echo -n '@'
  echo -n (hostname|cut -d . -f 1)
  echo -n ' '
  set_color $fish_color_cwd
  echo -n (prompt_pwd)
  echo -n ' '
  set_color normal

  if test -z (git branch --quiet 1>/dev/null 2>|awk '/fatal:/ {print "no git"}')
    echo -n [
    echo -n (parse_git_branch)
    echo -n ]
  else
    echo -n ' '
  end
  echo -n '> '
end