enhance the binary builders

Rakefile

@@ -57,8 +57,7 @@ namespace :build do
       arch_dir = Pathname(__FILE__).dirname.join("release/#{arch}")
       Dir.chdir(arch_dir) do
         sh "vagrant up"
-        sh "vagrant ssh -c 'rm -rf libv8 && git clone /libv8/.git libv8'"
-        sh "vagrant ssh -c 'cd libv8 && git submodule update --init --depth=1'"
+        sh "vagrant ssh -c 'rm -rf libv8 && git clone --recursive /libv8/.git libv8'"
         sh "vagrant ssh -c 'cd libv8 && bundle install --path vendor/bundle'"
         sh "vagrant ssh -c 'cd libv8 && bundle exec rake binary'"
         sh "vagrant ssh -c 'cp libv8/pkg/*.gem /vagrant'"

release/x86-linux/Vagrantfile

@@ -66,10 +66,14 @@ Vagrant.configure(2) do |config|
   # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
   # documentation for more information about their specific syntax and use.
   config.vm.provision "shell", inline: <<-SHELL
-    sudo apt-get update
-    sudo apt-get install -y gcc-4.8 g++-4.8 build-essential git git-svn python ruby ruby-dev
-    sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.8
-    sudo update-alternatives --config gcc
-    gem install bundler
+    apt-get update
+    apt-get install -y gcc-4.8 g++-4.8 build-essential git git-svn python ruby ruby-dev emacs
+    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.8
+    update-alternatives --config gcc
+    su -c 'gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3' - vagrant
+    su -c '\\curl -sSL https://get.rvm.io | bash -s stable' - vagrant
+    su -c 'rvm install 2.2.2 --disable-binary' - vagrant
+    su -c 'rvm --default use 2.2.2' - vagrant
+    su -c 'gem install bundler' - vagrant
   SHELL
 end

release/x86_64-linux/Vagrantfile

@@ -66,10 +66,14 @@ Vagrant.configure(2) do |config|
   # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
   # documentation for more information about their specific syntax and use.
   config.vm.provision "shell", inline: <<-SHELL
-    sudo apt-get update
-    sudo apt-get install -y gcc-4.8 g++-4.8 build-essential git git-svn python ruby ruby-dev
-    sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.8
-    sudo update-alternatives --config gcc
-    gem install bundler
+     apt-get update
+     apt-get install -y gcc-4.8 g++-4.8 build-essential git git-svn python ruby ruby-dev emacs
+     update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.8
+     update-alternatives --config gcc
+     su -c 'gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3' - vagrant
+     su -c '\\curl -sSL https://get.rvm.io | bash -s stable' - vagrant
+     su -c 'rvm install 2.2.2 --disable-binary' - vagrant
+     su -c 'rvm --default use 2.2.2' - vagrant
+     su -c 'gem install bundler' - vagrant
   SHELL
 end