Use a self-contained librarian installation

[josegonzalez]

You can use multiple provisioners to remove the need to have anything other than virtualbox/vagrant installed as follows:

# add the following before the `Vagrant.configure` line
$script = <<-SCRIPT
cat > /root/.gemrc << 'EOF'
gem: --no-ri --no-rdoc
EOF

if ! grep -q cd-to-directory "/home/vagrant/.bashrc"; then
  echo "- setting up auto chdir on ssh"
  echo "\n[ -n \\"\\$SSH_CONNECTION\\" ] && cd /vagrant # cd-to-directory" >> "/home/vagrant/.bashrc"
fi

cd /vagrant

if [ ! -f /opt/chef/embedded/bin/librarian-chef ]; then
  echo "- installing librarian-chef"
  /opt/chef/embedded/bin/gem install librarian-chef > /dev/null
fi

echo "- running librarian-chef"
/opt/chef/embedded/bin/librarian-chef install > /dev/null

SCRIPT

And then place this before the existing config.vm.provision block:

  config.vm.provision :shell, inline: $script

This removes the need to install gems outside of the vagrant vm.

A few notes:

• Other than git, I don't run any code outside of a vm on my mac. It's a way to ensure that all development environments can be replicated anywhere without my poking/prodding, since I regularly rebuild my vms.
• This requires the use of the opscode ruby to install things. A bit annoying, and there should be some fallbacks, but still good to note.
• This sort of pollutes the embedded opscode ruby. We could install ruby1.9 (I do that for other vms) but it doesn't matter that much.