bash prompt with date, time and git branch

.bashrc

# Path for openSuSE – may be different in other distributions
source /usr/share/bash-completion/completions/git-prompt.sh

# taken from https://github.com/qupada/git-bashrc/blob/master/git-bashrc
_in_git_repo () {
  # Check the current dir is actually a repository
  git status &> /dev/null || return 2
  # If we are not on a branch we will get annoying errors if we don't do this check
  git branch | grep -qE '^\* \((no branch|detached from .*)\)' && return 1
  return 0
}

_getStats () {
# we assume to always have a remote
  ahead=`git rev-list --count @{u}..HEAD`
  behind=`git rev-list --count HEAD..@{u}`

  echo "↑ $ahead ↓ $behind"
}

_git_stats () {
  _in_git_repo && _getStats
}

export PS1='\033[35m[\D{%a %T}]\[\033[0m\]\[\033[0;32m\] \[\033[0m\033[0;32m\]\u\[\033[0;36m\]@\[\033[0;36m\]\h:\
 \w\[\033[0;32m\]$(__git_ps1) $(_git_stats)\n\[\033[0;32m\]└─\[\033[0m\033[0;32m\] \$\[\033[0m\033[0;32m\] ▶\[\033[0m\] '

Based on https://gist.github.com/justintv/168835#gistcomment-1717504