#!/bin/sh
set -x

WORKSPACE="${1:-/usr/local}"
cd $WORKSPACE
WORKSPACE=$(pwd)

echo "workspace: ${WORKSPACE}"

RUBY_URL=https://cache.ruby-lang.org/pub/ruby

RUBY_VERSION=2.3.1
RUBY_SUFFIX=231


cd ${WORKSPACE}/src

if [ ! -f ruby-${RUBY_VERSION}.tar.gz ]; then
  curl -sLO ${RUBY_URL}/ruby-${RUBY_VERSION}.tar.gz
fi
rm -fr ruby-${RUBY_VERSION}
tar -zxvf ruby-${RUBY_VERSION}.tar.gz

cd ruby-${RUBY_VERSION}
make clean

./configure \
    --prefix=${WORKSPACE} \
    --program-suffix=$RUBY_SUFFIX \
    --libdir=${WORKSPACE}/lib \
    --disable-install-rdoc \
    --disable-install-capi
make -j5
make install