bash alias for install cappuccino tool chain into a local directory

gistfile1.sh

function _funct_capp_local_install
{
    local dirname response

    if ! git clone https://github.com/280north/cappuccino.git . ; then
        echo "Current directory is not empty, a $0 will only work"
        echo "in an empty directory."
        return
    fi

    echo "Install Directory (.narwhal) : "
    read dirname
    if [[ "$dirname" == "" ]] ; then
        dirname=".narwhal"
    fi

    if [ -d $dirname ] ; then
        echo "directory exists, exiting"
        return
    fi
    mkdir $dirname
    cd $dirname

    git clone git://github.com/280north/narwhal.git .
    export PATH=$(pwd)/bin:$PATH
    hash -r

    echo -n "Tusk is now, is this correct? (Y/n) : "
    which tusk
    read response
    if [ "$response" == "y" -o "$response" == "" ] ; then
        echo "Installing jake, browserjs and shrinksafe via tusk"
        tusk install jake
        tusk install browserjs
        tusk install shrinksafe
    fi

    cd ../
    jake install # install objective-j and cappuccino
    # OJTest requires objective-j therefore do it after cappuccino is complete
    tusk install https://github.com/280north/OJTest/zipball/latest
    echo "done installation, tools are now:"
    which capp
    which ojtest
}
alias capp-local-install=_funct_capp_local_install