ruby_install.sh

#!/bin/bash

## MAKE SURE YOU'VE INSTALLED EPEL
# See http://dokuwiki.nausch.org/doku.php/centos:epel6 (German) for a good guide
##

# development tools
yum -y groupinstall "Development Tools"
yum -y install libxslt-devel libyaml-devel libxml2-devel gdbm-devel libffi-devel zlib-devel openssl-devel libyaml-devel readline-devel curl-devel openssl-devel pcre-devel git memcached-devel valgrind-devel mysql-devel ImageMagick-devel ImageMagick

# ruby
version=2.1.1
if [ "$(/usr/local/bin/ruby -e "print RUBY_VERSION")" != $version ]; then
  cd /usr/local/src
  wget http://ftp.ruby-lang.org/pub/ruby/2.1/ruby-$version.tar.gz
  tar zxvf ruby-$version.tar.gz
  cd ruby-$version
  ./configure
  make
  make install
fi
 
# ruby-gems
version=2.2.2
if [ "$(/usr/local/bin/gem --version)" != $version ]; then
  cd ..
  wget http://production.cf.rubygems.org/rubygems/rubygems-$version.tgz
  tar zxvf rubygems-$version.tgz
  cd rubygems-$version
  /usr/local/bin/ruby setup.rb
fi
 
# puppet 
if [ -z "$(/usr/local/bin/gem list -l puppet)" ]; then
  /usr/local/bin/gem install bundler puppet ruby-shadow --no-ri --no-rdoc
fi

file=/etc/profile.d/ruby.sh
if [ ! -f  $file ]; then
  cat > $file << 'EOS'
export GEM_ROOT=$HOME/.gems/ruby/$(ruby -e "print Gem.ruby_api_version")
export GEM_HOME=$HOME/.gems/ruby/$(ruby -e "print Gem.ruby_api_version")
export GEM_PATH=$HOME/.gems/ruby/$(ruby -e "print Gem.ruby_api_version")
export PATH=$HOME/.gems/ruby/$(ruby -e "print Gem.ruby_api_version")/bin:$PATH
EOS
fi