Bash Prompt

.bash_prompt.sh

#!/bin/bash

[ -z "$PS1" ] && return

PROMPT_COMMAND='RET=$?;'

if [ ! -f ~/.git-completion.sh ]; then
	curl -s https://raw.github.com/git/git/master/contrib/completion/git-completion.bash > ~/.git-completion.sh && chmod +x .git-completion.sh
fi

if [ ! -f ~/.git-prompt.sh ]; then
	curl -s https://raw.github.com/git/git/master/contrib/completion/git-prompt.sh > ~/.git-prompt.sh && chmod +x .git-prompt.sh
fi

if [ -f ~/.git-completion.sh ]; then
	. ~/.git-completion.sh
fi

if [ -f ~/.git-prompt.sh ]; then
	. ~/.git-prompt.sh
fi

function _returnLambda {
   if [[ $RET = 0 ]]; then echo -e '\033[01;32m'; else echo -e '\033[01;31m'; fi;
}

function __svn_branch {
   if [ -d .svn ]; then
       _branchName=`svn info | grep '^URL:' | egrep -o '(tags|branches)/[^/]+|trunk' | egrep -o '[^/]+$'`
       if [ -n $_branchName ]; then
           echo -ne `printf $1 ' ' $_branchName`
       fi
   fi
}

PS1='\[\033[01;32m\]  \[$(_returnLambda)\]λ \[\033[01;34m\]\W$(__svn_branch "\[\e[32m\]%s[%s]")$(__git_ps1 \ \[\e[32m\][%s]) \[\e[1;37m\]\$\[\033[00m\] '