Add action to setup box package files

lib/vagrant-lxc/action/setup_package_files.rb

@@ -0,0 +1,52 @@
+require 'fileutils'
+
+module Vagrant
+  module LXC
+    module Action
+      class SetupPackageFiles
+        def initialize(app, env)
+          @app = app
+
+          env["package.include"]     ||= []
+          env["package.vagrantfile"] ||= nil
+        end
+
+        def call(env)
+          @env = env
+
+          create_package_temp_dir
+          move_rootfs_to_pkg_dir
+          copy_box_files_to_pkg_dir
+
+          @app.call env
+
+          recover # called to cleanup temp directory
+        end
+
+        def recover(*)
+          if @temp_dir && File.exist?(@temp_dir)
+            FileUtils.rm_rf(@temp_dir)
+          end
+        end
+
+        private
+
+        def create_package_temp_dir
+          @env[:ui].info I18n.t("vagrant.actions.vm.export.create_dir")
+          @temp_dir = @env["package.directory"] = @env[:tmp_path].join("container-export-#{Time.now.to_i.to_s}")
+          FileUtils.mkpath(@temp_dir)
+        end
+
+        def move_rootfs_to_pkg_dir
+          FileUtils.mv @env['package.rootfs'].to_s, @env['package.directory'].to_s
+        end
+
+        def copy_box_files_to_pkg_dir
+          box_dir = @env[:machine].box.directory
+          FileUtils.cp box_dir.join('lxc-template').to_s, @env['package.directory'].to_s
+          FileUtils.cp box_dir.join('metadata.json').to_s, @env['package.directory'].to_s
+        end
+      end
+    end
+  end
+end

spec/unit/action/setup_package_files_spec.rb

@@ -0,0 +1,41 @@
+require 'unit_helper'
+
+require 'vagrant-lxc/action/setup_package_files'
+
+describe Vagrant::LXC::Action::SetupPackageFiles do
+  let(:app)         { mock(:app, call: true) }
+  let(:env)         { {machine: machine, tmp_path: tmp_path, ui: stub(info: true), 'package.rootfs' => rootfs_path} }
+  let(:machine)     { fire_double('Vagrant::Machine', box: box) }
+  let!(:tmp_path)   { Pathname.new(Dir.mktmpdir) }
+  let(:box)         { fire_double('Vagrant::Box', directory: tmp_path.join('box')) }
+  let(:rootfs_path) { tmp_path.join('rootfs-amd64.tar.gz') }
+
+  subject { described_class.new(app, env) }
+
+  before do
+    box.directory.mkdir
+    [box.directory.join('lxc-template'), box.directory.join('metadata.json'), rootfs_path].each do |file|
+      file.open('w') { |f| f.puts file.to_s }
+    end
+
+    subject.stub(recover: true) # Prevents files from being removed on specs
+    subject.call(env)
+  end
+
+  after do
+    FileUtils.rm_rf(tmp_path.to_s)
+  end
+
+  it 'copies box lxc-template to package directory' do
+    env['package.directory'].join('lxc-template').should be_file
+  end
+
+  it 'copies metadata.json to package directory' do
+    env['package.directory'].join('metadata.json').should be_file
+  end
+
+  it 'moves the compressed rootfs to package directory' do
+    env['package.directory'].join(rootfs_path.basename).should be_file
+    env['package.rootfs'].should_not be_file
+  end
+end