PS1 coloring

PS1-coloring.sh

 [ -r /etc/bashrc ] && source /etc/bashrc
 [ -r /etc/bash_completion ] && source /etc/bash_completion
 [ -r ~/.git-completion.bash ] && source ~/.git-completion.bash
 [ -r ~/.git-prompt.sh ] && source ~/.git-prompt.sh
 [ -r /usr/local/rvm/scripts/rvm ] && source /usr/local/rvm/scripts/rvm
 
 __has_parent_dir () {
     # Utility function so we can test for things like .git/.hg without firing up a
     # separate process
     test -d "$1" && return 0;
 
     current="."
     while [ ! "$current" -ef "$current/.." ]; do
         if [ -d "$current/$1" ]; then
             return 0;
         fi
         current="$current/..";
     done
 
     return 1;
 }
 
 __vcs_name() {
     if [ -d .svn ]; then
         echo "-[svn]";
     elif __has_parent_dir ".git"; then
         echo "-[$(__git_ps1 'git %s')]";
     elif __has_parent_dir ".hg"; then
         echo "-[hg $(hg branch)]"
     fi
 }

black=$(tput -Txterm setaf 0)
red=$(tput -Txterm setaf 1)
green=$(tput -Txterm setaf 2)
yellow=$(tput -Txterm setaf 3)
dk_blue=$(tput -Txterm setaf 4)
pink=$(tput -Txterm setaf 5)
lt_blue=$(tput -Txterm setaf 6)

bold=$(tput -Txterm bold)
reset=$(tput -Txterm sgr0)
 
# Nicely formatted terminal prompt 
export PS1='\[$yellow\]\u \[$green\]\h \[$pink\]\w $(__vcs_name)\[$reset\]\$ '