My bashrc

.bashrc

# auto start tmux
if [[ ! $TERM =~ screen ]]; then
    tmux a || tmux new
fi

# custom prompt
export PS1="\[\033[36m\]\u\[\033[33;1m\]\w\[\033[0;32m\]\$(__git_ps1 '(%s)') \[\033[36m\]\$\[\033[m\] "

### macos ###
parse_git_branch() {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
export PS1="\[\033[36m\]\u\[\033[33;1m\]\w\[\033[0;32m\]\$(parse_git_branch '(%s)') \[\033[36m\]\$\[\033[m\] "