Ruby install from source

install_ruby.sh

install_ruby() {
    # install dependencies
    apt-get -y install zlib1g-dev libssl-dev libc6-dev libncurses5-dev

    # due to problems on openssl on debian based distributions, install the
    # openssl package from tvm and point to this location using the configure 
    # flags
    #
    # install rvm
    apt-get -y install curl
    curl -sSL https://get.rvm.io | /bin/bash
    source /etc/profile
    rvm pkg install openssl

    # get ruby archive and install
    wget http://ftp.ruby-lang.org/pub/ruby/ruby-${1}.tar.gz
    tar xvzf ruby-${1}.tar.gz
    cd ruby-${1}

    # segmentation faults on older versions of gcc
    # use these cflags to compile everything correctly
    ./configure
    make
    make install
    cd ..
    rm -rf ruby-${1}*
}

VERSION=$1
if [ -z "$VERSION" ]; then
    echo 'please define a version' >&2
    exit 1
fi

# run install
install_ruby "$VERSION"