core: allow command plugins to have options

lib/vagrant/plugin/v2/components.rb

@@ -11,6 +11,13 @@ module Vagrant
         # @return [Hash<Symbol, Array>]
         attr_reader :action_hooks
 
+        # This contains all the command plugins by name, and returns
+        # the command class and options. The command class is wrapped
+        # in a Proc so that it can be lazy loaded.
+        #
+        # @return [Registry<Symbol, Array<Proc, Hash>>]
+        attr_reader :commands
+
         # This contains all the configuration plugins by scope.
         #
         # @return [Hash<Symbol, Registry>]
@@ -51,6 +58,7 @@ module Vagrant
           # The action hooks hash defaults to []
           @action_hooks = Hash.new { |h, k| h[k] = [] }
 
+          @commands = Registry.new
           @configs = Hash.new { |h, k| h[k] = Registry.new }
           @guests  = Registry.new
           @guest_capabilities = Hash.new { |h, k| h[k] = Registry.new }

lib/vagrant/plugin/v2/plugin.rb

@@ -81,21 +81,18 @@ module Vagrant
         # "vagrant foo" becomes available.
         #
         # @param [String] name Subcommand key.
-        def self.command(name=UNSET_VALUE, &block)
-          data[:command] ||= Registry.new
-
-          if name != UNSET_VALUE
-            # Validate the name of the command
-            if name.to_s !~ /^[-a-z0-9]+$/i
-              raise InvalidCommandName, "Commands can only contain letters, numbers, and hyphens"
-            end
-
-            # Register a new command class only if a name was given.
-            data[:command].register(name.to_sym, &block)
+        def self.command(name, **opts, &block)
+          # Validate the name of the command
+          if name.to_s !~ /^[-a-z0-9]+$/i
+            raise InvalidCommandName, "Commands can only contain letters, numbers, and hyphens"
           end
 
-          # Return the registry
-          data[:command]
+          # Register the command
+          components.commands.register(name.to_sym) do
+            [block, opts]
+          end
+
+          nil
         end
 
         # Defines additional communicators to be available. Communicators

test/unit/vagrant/plugin/v2/plugin_test.rb

@@ -53,7 +53,20 @@ describe Vagrant::Plugin::V2::Plugin do
         command("foo") { "bar" }
       end
 
-      plugin.command[:foo].should == "bar"
+      expect(plugin.components.commands.keys).to be_include(:foo)
+      expect(plugin.components.commands[:foo][0].call).to eql("bar")
+    end
+
+    it "should register command classes with options" do
+      plugin = Class.new(described_class) do
+        command("foo", opt: :bar) { "bar" }
+      end
+
+      expect(plugin.components.commands.keys).to be_include(:foo)
+      expect(plugin.components.commands[:foo][0].call).to eql("bar")
+      expect(plugin.components.commands[:foo][1]).to eql({
+        opt: :bar,
+      })
     end
 
     ["spaces bad", "sym^bols"].each do |bad|
@@ -79,8 +92,8 @@ describe Vagrant::Plugin::V2::Plugin do
       # Now verify when we actually get the command key that
       # a proper error is raised.
       expect {
-        plugin.command[:foo]
-      }.to raise_error(StandardError)
+        plugin.components.commands[:foo][0].call
+      }.to raise_error(StandardError, "FAIL!")
     end
   end