Build Rubies

build-ruby.sh

# building Ruby versions on Vagrant box
#
# https://github.com/rbenv/ruby-build
#
# booting vagrant box
cd ~/Code/boxes/centos7
vagrant up
vagrant ssh

# install ruby-build
git clone https://github.com/rbenv/ruby-build.git
sudo PREFIX=/usr/local ./ruby-build/install.sh
which ruby-build
/usr/local/bin/ruby-build

# dependencies
sudo yum install -y gcc bzip2 openssl-devel libyaml-devel libffi-devel readline-devel zlib-devel gdbm-devel ncurses-devel


# build rubies
# list rubies
ruby-build --definitions

# build $RUBY_VERSIONS
export RUBY_PREFIX=/opt/rubies
export RUBY_VERSIONS=2.6.3

sudo mkdir -p $RUBY_PREFIX

for version in $RUBY_VERSIONS ; do
  echo "==> $version"
  sudo time /usr/local/bin/ruby-build $version ${RUBY_PREFIX}/ruby-${version} | tee ruby-${version}.log
done