"project-dir:branch-name> " in git repos, "> " everywhere else (both are colored).

elia-git-prompt.sh

# To include this custom prompt put this file in "~/bin/" and and put the 
# following lines in "~/.profile".
# 
# # Include Custom prompt
# . ~/bin/elia-git-prompt.sh

 
clear=$'\[\e[0m\]'
red=$'\[\e[31m\]'
green=$'\[\e[32m\]'
yellow=$'\[\e[33m\]'
blue=$'\[\e[34m\]'
purple=$'\[\e[35m\]'
cyan=$'\[\e[36m\]'
gray=$'\[\e[37m\]'


function __git_base_dir {
	(__gitdir > /dev/null) && cd "$(__gitdir)" && cd .. && basename "$(pwd)"
}

export PS1="$red\$(__git_base_dir)$green\$(__git_ps1 \":%s\")$yellow>$clear "