Display git branch in terminal title, bash functions

gistfile1.txt

# Add to .bash_profile

function gittitle() { 
 echo -n -e "\033]0;`git status | awk 'NR==1 {print $3}'`\007"
 }

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

get_git_root() {
  basename $(git rev-parse --show-toplevel 2> /dev/null) 2> /dev/null
}

update_git_prompt()
{
        GIT_BRANCH=$(parse_git_branch)

        if [ -n "$GIT_BRANCH" ]; then
                GIT_ROOT=$(get_git_root)
                echo -ne "\033]0;$(get_git_root): $(parse_git_branch)\007"
        else
                echo -ne "\033]0;\007"
        fi
}