core: CLI understands new plugin definition format

lib/vagrant/cli.rb

@@ -23,15 +23,17 @@ module Vagrant
 
       # If we reached this far then we must have a subcommand. If not,
       # then we also just print the help and exit.
-      command_class = nil
+      command_plugin = nil
       if @sub_command
-        command_class = Vagrant.plugin("2").manager.commands[@sub_command.to_sym]
+        command_plugin = Vagrant.plugin("2").manager.commands[@sub_command.to_sym]
       end
 
-      if !command_class || !@sub_command
+      if !command_plugin || !@sub_command
         help
         return 1
       end
+
+      command_class = command_plugin[0].call
       @logger.debug("Invoking command class: #{command_class} #{@sub_args.inspect}")
 
       # Initialize and execute the command class, returning the exit status.
@@ -57,8 +59,9 @@ module Vagrant
         # out as well.
         commands = {}
         longest = 0
-        Vagrant.plugin("2").manager.commands.each do |key, klass|
+        Vagrant.plugin("2").manager.commands.each do |key, data|
           key           = key.to_s
+          klass         = data[0].call
           commands[key] = klass.synopsis
           longest       = key.length if key.length > longest
         end

lib/vagrant/plugin/v2/manager.rb

@@ -30,11 +30,11 @@ module Vagrant
 
         # This returns all the registered commands.
         #
-        # @return [Hash]
+        # @return [Registry<Symbol, Array<Proc, Hash>>]
         def commands
           Registry.new.tap do |result|
             @registered.each do |plugin|
-              result.merge!(plugin.command)
+              result.merge!(plugin.components.commands)
             end
           end
         end

test/unit/vagrant/cli_test.rb

@@ -1,29 +1,59 @@
+require_relative "../base"
+
+require "vagrant/cli"
+
 describe Vagrant::CLI do
-  describe "parsing options" do
-    let(:klass) do
-      Class.new(described_class)
+  include_context "unit"
+
+  let(:commands) { {} }
+  let(:iso_env) { isolated_environment }
+  let(:env)     { iso_env.create_vagrant_env }
+
+  before do
+    Vagrant.plugin("2").manager.stub(commands: commands)
   end
 
-    let(:environment) do
-      ui = double("UI::Silent")
-      ui.stub(:machine => "bar")
-      ui.stub(:info => "bar")
-      env = double("Vagrant::Environment")
-      env.stub(:active_machines => [])
-      env.stub(:ui => ui)
-      env.stub(:root_path => "foo")
-      env.stub(:machine_names => [])
-      env
+  def command_lambda(name, result)
+    lambda do
+      Class.new(Vagrant.plugin("2", "command")) do
+        define_method(:execute) do
+          result
+        end
+      end
+    end
+  end
+
+  describe "#execute" do
+    it "invokes help and exits with 1 if invalid command" do
+      subject = described_class.new(["i-dont-exist"], env)
+      subject.should_receive(:help).once
+      expect(subject.execute).to eql(1)
     end
 
-    it "returns a non-zero exit status if an invalid command is given" do
-      result = klass.new(["destroypp"], environment).execute
-      result.should_not == 0
+    it "invokes command and returns its exit status if the command is valid" do
+      commands[:destroy] = [command_lambda("destroy", 42), {}]
+
+      subject = described_class.new(["destroy"], env)
+      subject.should_not_receive(:help)
+      expect(subject.execute).to eql(42)
+    end
   end
 
-    it "returns an exit status of zero if a valid command is given" do
-      result = klass.new(["destroy"], environment).execute
-      result.should == 0
+  describe "#help" do
+    subject { described_class.new([], env) }
+
+    it "includes all available subcommands" do
+      commands[:foo] = [command_lambda("foo", 0), {}]
+      commands[:bar] = [command_lambda("bar", 0), {}]
+      commands[:baz] = [command_lambda("baz", 0), {}]
+
+      env.ui.should_receive(:info).with do |message, opts|
+        expect(message).to include("foo")
+        expect(message).to include("bar")
+        expect(message).to include("baz")
+      end
+
+      subject.help
     end
   end
 end