Bash prompt with exit code and Git branch

bashrc.sh

# ========= PS1 SETTINGS

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


# Pipe code notifiation
bash_prompt_command() {
PC=$?
pipe_code=$(pipe_code $PC)
unset C
}

PROMPT_COMMAND=bash_prompt_command

pipe_code() {
if [ $1 != 0 ] && [ $1 != 130 ] ; then
  echo -e "\e[0;31m[#$1]\e[0;0m"
fi
}

export PS1="\w\[\033[33m\]\$(git_branch)\[\033[00m\]\$pipe_code\$\[\033[00m\] "