bash prompt with git repository

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

function breadcrumb() 
{
echo $1 | sed "s|^$HOME|~|" | awk -v n=$2 '{
  # Split the path into components
  count = split($0, components, "/")

  # If there are less than n components, just print the whole path
  if (count <= n) {
    print $0

  } else {
    # print the last n components
    for (i = count - n + 1; i < count; i++) {
      printf "%s/", components[i]
    }

    printf "%s", components[count]
  }
}'
}

PS1='[\h:$(breadcrumb "$PWD" 3)] $(parse_git_branch)\u\$ '