Download a ruby 1.9.3 version, patch it using the railsexpress patches of skaes/rvm-patchsets, and pack it up..

gistfile1.sh

#!/bin/bash
set -e

echo "Which patchset of ruby 1.9.3 do you want to download and patch? (eg. 392)"
read PATCHSET

RUBY_VERSION="ruby-1.9.3-p${PATCHSET}"
FILENAME="${RUBY_VERSION}.tar.gz"

if [ -d "/tmp/${RUBY_VERSION}" ]; then
  echo "You seem to have the source of ${RUBY_VERSION} in /tmp. Please remove it an ruby this script again!"
  exit 1
fi;

curl -o "/tmp/${FILENAME}" "http://ftp.ruby-lang.org/pub/ruby/1.9/${FILENAME}"
tar xzf "/tmp/${FILENAME}" -C /tmp

curl "https://raw.github.com/skaes/rvm-patchsets/master/patchsets/ruby/1.9.3/p${PATCHSET}/railsexpress" | xargs -I % curl https://raw.github.com/skaes/rvm-patchsets/master/patches/ruby/1.9.3/p${PATCHSET}/% | patch -p1 -d "/tmp/${RUBY_VERSION}"

cd /tmp
tar czPf "${RUBY_VERSION}-perf.tar.gz" "${RUBY_VERSION}"