Git prompt in .bashrc

.bashrc

# Git
function git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

export PS1="\u @ \w \$(git_branch)$ "

.gitconfig

[color]
  branch = auto
  diff = auto
  status = auto
[core]
  editor = /usr/bin/vim
[help]
	autocorrect = 5
[color "branch"]
	current = yellow bold
	remote = cyan bold
[color "diff"]
	new = yellow bold
	old = red bold
	meta = cyan bold
	frag = white bold
	commit = white bold
[color "status"]
	added = yellow bold
	changed = cyan bold
	untracked = red bold