Bash git prompt

.bashrc

# this is where it is on my system. Find a copy at
# https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh
source /usr/share/git/git-prompt.sh

# show if there are staged/unstaged changes
GIT_PS1_SHOWDIRTYSTATE=true 
# pretty colours
GIT_PS1_SHOWCOLORHINTS=true
# show if there are untracked files
GIT_PS1_SHOWUNTRACKEDFILES=true

# sets prompt command. the two arguments are the string to appear before the git
# status, and the string to appear after it, using normal Bash prompt syntax.
PROMPT_COMMAND='__git_ps1 "\u|$(basename $(dirname "$PWD"))/$(basename "$PWD")" " "'