git branch and cleanliness status in the bash prompt

gistfile1.sh

parse_git_dirty() {                                                                                                                                                                  
  [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit (working directory clean)" ]] && echo "*"
}
parse_git_branch() {
  git branch 2> /dev/null | sed -e "/^[^*]/d" -e "s/* \(.*\)/(\1$(parse_git_dirty))/"
}

PROMPT_COMMAND='CurDir=`pwd|sed -e "s!$HOME!~!"|sed -E "s!([^/])[^/]+/!\1/!g"`'
PS1='[\u@\h $CurDir $(parse_git_branch)]\$ '