I'm a git Kraken lover but sometimes surf into my projects. I love to know in which branch I'm working.

Edit the .bash_profile and paste the following lines.

parse_git_branch() {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
export PS1="\[\033[32m\]\w - \$(parse_git_branch)\[\033[00m\] $ "

If you are using zsh

function parse_git_branch() {
    git branch 2> /dev/null | sed -n -e 's/^\* \(.*\)/[\1]/p'
}
export PROMPT='%~ $(parse_git_branch) $ '

Have a nice day :)