commands/box: List base box downloaded URL and datetime when `-i` gets provided to `box list`

plugins/commands/box/command/base.rb

@@ -10,11 +10,15 @@ module VagrantPlugins
         # @param [Hash] env Extra environment hash that is merged in.
         def action(callable, env=nil)
           env = {
-            :box_state_file => StateFile.new(@env.home_path.join("boxes.json"))
+            :box_state_file => box_state_file
           }.merge(env || {})
 
           @env.action_runner.run(callable, env)
         end
+
+        def box_state_file
+          @box_state_file ||= StateFile.new(@env.home_path.join("boxes.json"))
+        end
       end
     end
   end

plugins/commands/box/command/list.rb

@@ -1,14 +1,21 @@
 require 'optparse'
 
+require_relative "base"
+
 module VagrantPlugins
   module CommandBox
     module Command
-      class List < Vagrant.plugin("2", :command)
+      class List < Base
         def execute
           options = {}
 
           opts = OptionParser.new do |opts|
             opts.banner = "Usage: vagrant box list"
+            opts.separator ""
+
+            opts.on("-i", "--box-info", "Displays additional information about the boxes.") do |i|
+              options[:info] = i
+            end
           end
 
           # Parse the options
@@ -20,6 +27,15 @@ module VagrantPlugins
             return @env.ui.warn(I18n.t("vagrant.commands.box.no_installed_boxes"), :prefix => false)
           end
 
+          list_boxes(boxes, options[:info])
+
+          # Success, exit status 0
+          0
+        end
+
+        private
+
+        def list_boxes(boxes, extra_info)
           # Find the longest box name
           longest_box = boxes.max_by { |x| x[0].length }
           longest_box_length = longest_box[0].length
@@ -33,15 +49,18 @@ module VagrantPlugins
           # important for the user to know what boxes need to be upgraded
           # and which don't, since we plan on doing that transparently.
           boxes.each do |name, provider, _v1|
+            extra = ''
+            if extra_info
+              extra << "\n  `- URL:  #{box_state_file.box_url(name, provider)}"
+              extra << "\n  `- Date: #{box_state_file.downloaded_at(name, provider)}"
+            end
+
             name     = name.ljust(longest_box_length)
             provider = "(#{provider})".ljust(longest_provider_length + 2) # 2 -> parenthesis
-            box_info = "#{name} #{provider}"
+            box_info = "#{name} #{provider}#{extra}"
 
             @env.ui.info(box_info, :prefix => false)
           end
-
-          # Success, exit status 0
-          0
         end
       end
     end

plugins/commands/box/state_file.rb

@@ -28,6 +28,20 @@ module VagrantPlugins
         save!
       end
 
+      def box_url(name, provider)
+        box_key = "#{name}-#{provider}"
+
+        box_info = @data["boxes"].fetch(box_key, {})
+        box_info['url'] || 'Unknown'
+      end
+
+      def downloaded_at(name, provider)
+        box_key = "#{name}-#{provider}"
+
+        box_info = @data["boxes"].fetch(box_key, {})
+        box_info['downloaded_at'] || 'Unknown'
+      end
+
       # Remove a box that has been previously downloaded from the state file.
       #
       # @param [Box] box The box that was removed.