Fish git prompt

git_fish_prompt.fish

function _git_branch_name
  echo (git symbolic-ref HEAD ^/dev/null | sed -e 's|^refs/heads/||')
end

function _is_git_dirty
  echo (git status -s --ignore-submodules=dirty ^/dev/null)
end

function _unpushed
  echo (git cherry -v "@{upstream}" ^/dev/null)
end

function rvm_prompt
  set -l yellow (set_color -o yellow)
  # if [ (which rvm) ]
  if type -t rvm >/dev/null
    set -l identifier (rvm tools identifier)
    echo "$yellow$identifier "
  else
    echo ""
  end
end

function git_fish_prompt
  set -l cyan (set_color cyan)
  set -l yellow (set_color yellow)
  set -l red (set_color -o red)
  set -l blue (set_color blue)
  set -l magenta (set_color -o magenta)
  set -l normal (set_color normal)

  set -l arrow "$red➜"
  set -l cwd $cyan(pwd)

  # if [ (_git_branch_name) ]
  if test -n (_git_branch_name)
    set -l git_branch $red(_git_branch_name)
    set git_info "$blue git:($git_branch$blue)"

    set -l with_unpushed (_git_branch_name)

    if [ (_is_git_dirty) ]
      set arrow "$red✗"
    end

    # if [ (_unpushed) ]
    if test -n (_unpushed)
      set git_info "$git_info$normal with$magenta unpushed"
    end
  end

  echo -e \n
  # for rvm prompting (if wanted)
  # echo -n -s  (rvm_prompt) $cwd $git_info
  echo -n -s (hostname): $cwd $git_info
  echo -e \n$arrow $normal
end