core: Box can store a metadata URL

lib/vagrant/box.rb

@@ -39,17 +39,24 @@ module Vagrant
     # @return [Hash]
     attr_reader :metadata
 
+    # This is the URL to the version info and other metadata for this
+    # box.
+    #
+    # @return [String]
+    attr_reader :metadata_url
+
     # This is used to initialize a box.
     #
     # @param [String] name Logical name of the box.
     # @param [Symbol] provider The provider that this box implements.
     # @param [Pathname] directory The directory where this box exists on
     #   disk.
-    def initialize(name, provider, version, directory)
+    def initialize(name, provider, version, directory, **opts)
       @name      = name
       @version   = version
       @provider  = provider
       @directory = directory
+      @metadata_url = opts[:metadata_url]
 
       metadata_file = directory.join("metadata.json")
       raise Errors::BoxMetadataFileNotFound, :name => @name if !metadata_file.file?

lib/vagrant/box_collection.rb

@@ -151,7 +151,8 @@ module Vagrant
             provider = box_provider.to_sym
 
             # Create the directory for this box, not including the provider
-            box_dir = @directory.join(dir_name(name), version)
+            root_box_dir = @directory.join(dir_name(name))
+            box_dir = root_box_dir.join(version)
             box_dir.mkpath
             @logger.debug("Box directory: #{box_dir}")
 
@@ -173,6 +174,12 @@ module Vagrant
               @logger.debug("Moving: #{f} => #{destination}")
               FileUtils.mv(f, destination)
             end
+
+            if opts[:metadata_url]
+              root_box_dir.join("metadata_url").open("w") do |f|
+                f.write(opts[:metadata_url])
+              end
+            end
           end
         end
       end
@@ -244,9 +251,10 @@ module Vagrant
         end
 
         versions = box_directory.children(true).map do |versiondir|
+          next if !versiondir.directory?
           version = versiondir.basename.to_s
           Gem::Version.new(version)
-        end
+        end.compact
 
         # Traverse through versions with the latest version first
         versions.sort.reverse.each do |v|
@@ -260,7 +268,15 @@ module Vagrant
             provider_dir = versiondir.join(provider.to_s)
             next if !provider_dir.directory?
             @logger.info("Box found: #{name} (#{provider})")
-            return Box.new(name, provider, v.to_s, provider_dir)
+
+            metadata_url = nil
+            metadata_url_file = box_directory.join("metadata_url")
+            metadata_url = metadata_url_file.read if metadata_url_file.file?
+
+            return Box.new(
+              name, provider, v.to_s, provider_dir,
+              metadata_url: metadata_url,
+            )
           end
         end
       end

test/unit/vagrant/box_collection_test.rb

@@ -97,7 +97,7 @@ describe Vagrant::BoxCollection do
     end
   end
 
-  describe "adding" do
+  describe "#add" do
     it "should add a valid box to the system" do
       box_path = environment.box2_file(:virtualbox)
 
@@ -134,6 +134,17 @@ describe Vagrant::BoxCollection do
       expect(box.provider).to eq(:vmware)
     end
 
+    it "should store a metadata URL" do
+      box_path = environment.box2_file(:virtualbox)
+
+      subject.add(
+        box_path, "foo", "1.0",
+        metadata_url: "bar")
+
+      box = subject.find("foo", :virtualbox, "1.0")
+      expect(box.metadata_url).to eq("bar")
+    end
+
     it "should add a V1 box" do
       # Create a V1 box.
       box_path = environment.box1_file

test/unit/vagrant/box_test.rb

@@ -15,6 +15,8 @@ describe Vagrant::Box do
   let(:directory)     { environment.box3("foo", "1.0", :virtualbox) }
   subject             { described_class.new(name, provider, version, directory) }
 
+  its(:metadata_url) { should be_nil }
+
   it "provides the name" do
     subject.name.should == name
   end
@@ -39,6 +41,16 @@ describe Vagrant::Box do
     subject.metadata.should == data
   end
 
+  context "with a metadata URL" do
+    subject do
+      described_class.new(
+        name, provider, version, directory,
+        metadata_url: "foo")
+    end
+
+    its(:metadata_url) { should eq("foo") }
+  end
+
   context "with a corrupt metadata file" do
     before do
       directory.join("metadata.json").open("w") do |f|