Initial plugin command plugin

plugins/commands/plugin/command/root.rb

@@ -0,0 +1,56 @@
+require 'optparse'
+
+module VagrantPlugins
+  module CommandPlugin
+    module Command
+      class Root < Vagrant.plugin("2", :command)
+        def initialize(argv, env)
+          super
+
+          @main_args, @sub_command, @sub_args = split_main_and_subcommand(argv)
+
+          @subcommands = Vagrant::Registry.new
+        end
+
+        def execute
+          if @main_args.include?("-h") || @main_args.include?("--help")
+            # Print the help for all the sub-commands.
+            return help
+          end
+
+          # If we reached this far then we must have a subcommand. If not,
+          # then we also just print the help and exit.
+          command_class = @subcommands.get(@sub_command.to_sym) if @sub_command
+          return help if !command_class || !@sub_command
+          @logger.debug("Invoking command class: #{command_class} #{@sub_args.inspect}")
+
+          # Initialize and execute the command class
+          command_class.new(@sub_args, @env).execute
+        end
+
+        # Prints the help out for this command
+        def help
+          opts = OptionParser.new do |o|
+            o.banner = "Usage: vagrant plugin <command> [<args>]"
+            o.separator ""
+            o.separator "Available subcommands:"
+
+            # Add the available subcommands as separators in order to print them
+            # out as well.
+            keys = []
+            @subcommands.each { |key, value| keys << key.to_s }
+
+            keys.sort.each do |key|
+              o.separator "     #{key}"
+            end
+
+            o.separator ""
+            o.separator "For help on any individual command run `vagrant plugin COMMAND -h`"
+          end
+
+          @env.ui.info(opts.help, :prefix => false)
+        end
+      end
+    end
+  end
+end

plugins/commands/plugin/plugin.rb

@@ -0,0 +1,18 @@
+require "vagrant"
+
+module VagrantPlugins
+  module CommandPlugin
+    class Plugin < Vagrant.plugin("2")
+      name "plugin command"
+      description <<-DESC
+      This command helps manage and install plugins within the
+      Vagrant environment.
+DESC
+
+      command("plugin") do
+        require File.expand_path("../command/root", __FILE__)
+        Command::Root
+      end
+    end
+  end
+end