fast setup ruby and itamae

start.sh

#!/bin/bash

if type gem > /dev/null 2>&1; then
echo "ruby found"
else
sudo yum install centos-release-scl
sudo yum install ruby200
scl enable ruby200 bash
fi

if type bundle > /dev/null 2>&1; then
echo "bundle found"
else
gem install bundle
fi

mkdir -p itamae/recipes/remote_files itamae/nodes itamae/spec/centos

cat << 'EOS' > itamae/Gemfile
source 'https://rubygems.org'

gem 'itamae'
gem 'rake'
gem 'serverspec'
EOS

cat << 'EOS' > itamae/recipes/ruby_build.rb
package "epel-release"
package "gcc"
package "openssl-devel"
package "libyaml-devel"
package "readline-devel"
package "zlib-devel"
package "git"

RBENV_DIR = "/usr/local/rbenv"
RBENV_SCRIPT = "/etc/profile.d/rbenv.sh"

git RBENV_DIR do
  repository "git://github.com/sstephenson/rbenv.git"
end

remote_file RBENV_SCRIPT do
  source "remote_files/rbenv.sh"
end

execute "set owner and mode for #{RBENV_SCRIPT} " do
  command "chown root: #{RBENV_SCRIPT}; chmod 644 #{RBENV_SCRIPT}"
  user "root"
end

execute "mkdir #{RBENV_DIR}/plugins" do
  not_if "test -d #{RBENV_DIR}/plugins"
end

git "#{RBENV_DIR}/plugins/ruby-build" do
  repository "git://github.com/sstephenson/ruby-build.git"
end

node["rbenv"]["versions"].each do |version|
  execute "install ruby #{version}" do
    command "source #{RBENV_SCRIPT}; rbenv install #{version}"
    not_if "source #{RBENV_SCRIPT}; rbenv versions | grep #{version}"
  end
end

execute "set global ruby #{node["rbenv"]["global"]}" do
  command "source #{RBENV_SCRIPT}; rbenv global #{node["rbenv"]["global"]}; rbenv rehash"
  not_if "source #{RBENV_SCRIPT}; rbenv global | grep #{node["rbenv"]["global"]}"
end

node["rbenv"]["gems"].each do |gem|
  execute "gem install #{gem}" do
    command "source #{RBENV_SCRIPT}; gem install #{gem}; rbenv rehash"
    not_if "source #{RBENV_SCRIPT}; gem list | grep #{gem}"
  end
end

execute "echo using user rbenv" do
  command "echo 'using user rbenv below'; cat RBENV_SCRIPT"
end

EOS

cat << 'EOS' > itamae/recipes/remote_files/rbenv.sh
export RBENV_ROOT="/usr/local/rbenv"
export PATH="${RBENV_ROOT}/bin:${PATH}"
eval "$(rbenv init --no-rehash -)"
EOS

cat << 'EOS' > itamae/nodes/node.json
{
  "rbenv": {
    "versions": ["2.1.1", "2.1.2"],
    "global": "2.1.2",
    "gems": ["bundler"]
  }
}
EOS

cat << 'EOS' > itamae/spec/centos/ruby_build_spec.rb
require 'spec_helper'

describe command('source /etc/profile.d/rbenv.sh; which rbenv') do
  let(:disable_sudo) { true }
  its(:stdout) { should match %r{/usr/local/rbenv/bin/rbenv} }
end

describe file('/etc/profile.d/rbenv.sh') do
  it { should be_file }
  it { should be_owned_by 'root' }
  it { should be_grouped_into 'root' }
  it { should be_mode 644 }
  its(:content) { should match(/^export RBENV_ROOT="\/usr\/local\/rbenv"$/) }
  its(:content) { should match(/^export PATH="\${RBENV_ROOT}\/bin:\${PATH}"$/) }
  its(:content) { should match(/^eval "\$\(rbenv init --no-rehash -\)"$/) }
end

describe file('/usr/local/rbenv/plugins') do
  it { should be_directory }
  it { should be_owned_by 'root' }
  it { should be_grouped_into 'root' }
  it { should be_mode 755 }
end

describe file('/usr/local/rbenv/plugins/ruby-build') do
  it { should be_directory }
  it { should be_owned_by 'root' }
  it { should be_grouped_into 'root' }
  it { should be_mode 755 }
end

%w(2.1.1 2.1.2).each do |versoin|
  describe command("source /etc/profile.d/rbenv.sh; rbenv versions | grep #{versoin}") do
    let(:disable_sudo) { true }
    its(:stdout) { should match(/#{Regexp.escape(versoin)}/) }
  end
end

describe command('source /etc/profile.d/rbenv.sh; rbenv global') do
  let(:disable_sudo) { true }
  its(:stdout) { should match(/2.1.2/) }
end
EOS

cd itamae

~/bin/bundle install --path=vendor/bundle
~/bin/bundle exec itamae ssh -h localhost -u vagrant -j nodes/node.json recipes/ruby_build.rb
~/bin/bundle exec serverspec-init 
~/bin/bundle exec rake spec spec/centos/ruby_build_spec.rb