bashrc git enhancements, emotiprompt

bash-bits

GIT_PS1_SHOWDIRTYSTATE=y
GIT_PS1_SHOWSTASHSTATE=y
GIT_PS1_SHOWUNTRACKEDFILES=y
GIT_PS1_SHOWUPSTREAM=auto

# ~ the Emotiprompt(TM) ~
# idea came from: http://linuxgazette.net/122/lg_tips.html#tips.1
smiley() {
  err=$?
  if [[ $err == 0 ]]
  then echo ':)'
  else echo ":( $err"
  fi
}
PS1='$(smiley) [\u@\h \W$(__git_ps1 " <%s>")]\$ '

Also...

# list contents right after changing directories
cd() {
  if [[ "$1" ]]
  then builtin cd "$1" && ls
  else builtin cd && ls
  fi
}