Displaying current Git branch in Bash prompt

I decided to show the current Git branch at my bash prompt whenever I’m at a directory which contains a repository. I found a rather convoluted Bash-esque solution, which I adapted to myself:

gitbranch() {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ \1/'
}
#export PS1="\u@\h \[\e[32m\]\w \[\e[91m\]\$(gitbranch)\[\e[00m\]$ "
export PS1="\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\[\e[33m\]\$(gitbranch)\[\e[00m\]\$ "

It’s compact and it works as intended.