config.fish

function g; git $argv; end
function ll; ls -laH $argv; end

function _git_branch_name
  set -l branch (command git symbolic-ref HEAD ^/dev/null | sed -e 's|^refs/heads/||')

  if test -n "$branch"
    echo $branch
  else
    set -l commit (command git rev-parse --short HEAD ^/dev/null)

    if test -n "$commit"
      set_color red
      echo $commit
    end
  end
end

function _git_status_symbol
  set -l stashed (command git stash list ^/dev/null | tail -n1)
  set -l changed (command git status --porcelain ^/dev/null)

  if test -n "$stashed"
    echo -n '$'
  end

  if test -n "$changed"
    set -l dirty (command git diff --shortstat ^/dev/null)

    if test -n "$dirty"
      echo -n '*'
    else
      echo -n '+'
    end
  end

  echo ''
end

function git_prompt
  set -l git_status (_git_branch_name)(_git_status_symbol)

  if test -n "$git_status"
    echo -n " "
    set_color cyan
    echo -n "$git_status"
    set_color normal
  end
end

function fish_prompt
  set_color $fish_color_cwd
  printf '%s' (prompt_pwd)
  set_color normal

  git_prompt

  set_color $fish_color_cwd
  echo
  echo 'λ '
end