Vagrant.configure("2") do |config|
  config.vm.box = "bento/ubuntu-18.04"

  # Map the current directory into its conventional location, but use rsync
  # rather than Virtualbox shared folders. This leaves the guest free to create
  # hardlinks, which vbox doesn't support; on the other hand, it means we must
  # manually extract build artifacts or lose them.
  #
  # Note that we are *deliberately* exposing the .git subdirectory to the VM.
  # The build process needs access to it to generate version strings.
  config.vm.synced_folder "../..", "/vagrant", type: "rsync",
    rsync__args: ["--verbose", "--archive", "-zz", "--copy-links"],
    rsync__exclude: ["../../vagrant-out"]

  config.vm.synced_folder "../../vagrant-out", "/vagrant/inst", create: true

  config.vm.provider "virtualbox" do |vb|
    vb.memory = 4096
    vb.cpus = 4
  end

  config.vm.provision :shell, path: "./provision.sh"
end