add to .profile to add git branch name to cmd prompt

.profile

# git-related functions and aliases
parse_git_head () {
  git name-rev HEAD 2> /dev/null | sed 's#HEAD\ \(.*\)# (git::\1)#'
}

function get_statuscolor {
  if [[ "$(git status 2> /dev/null | tail -n1)" != "nothing to commit, working directory clean" ]]
    then
      echo $RED
    else
      echo $GREEN
  fi
}

function parse_git_branch {
  git status 2> /dev/null | grep '# On branch' | sed 's#\# On\ branch\ \(.*\)# (\1)#'
}

BLACK="\[\033[0;38m\]"
RED="\[\033[0;31m\]"
RED_BOLD="\[\033[01;31m\]"
BLUE="\[\033[0;34m\]"
BLUE_BOLD="\[\033[01;34m\]"
GREEN="\[\033[0;32m\]"
YELLOW="\[\033[0;33m\]"

export PS1="$YELLOW\w$(get_statuscolor)\$(parse_git_branch)$BLACK : "

Function has an error in coloring