commands/plugin: vagrant update is fancier now (see website docs)

lib/vagrant/bundler.rb

@@ -52,25 +52,22 @@ module Vagrant
 
     # Installs the list of plugins.
     #
+    # @param [Hash] plugins
     # @return [Array<Gem::Specification>]
     def install(plugins)
-      gemfile    = build_gemfile(plugins)
-      lockfile   = "#{gemfile.path}.lock"
-      definition = ::Bundler::Definition.build(gemfile, lockfile, nil)
-      root       = File.dirname(gemfile.path)
-      opts       = {}
+      internal_install(plugins, nil)
+    end
 
-      with_isolated_gem do
-        ::Bundler::Installer.install(root, definition, opts)
-      end
-
-      # TODO(mitchellh): clean gems here... for some reason when I put
-      # it in on install, we get a GemNotFound exception. Gotta investigate.
-
-      definition.specs
-    rescue ::Bundler::VersionConflict => e
-      raise Errors::PluginInstallVersionConflict,
-        conflicts: e.to_s.gsub("Bundler", "Vagrant")
+    # Update updates the given plugins, or every plugin if none is given.
+    #
+    # @param [Hash] plugins
+    # @param [Array<String>] specific Specific plugin names to update. If
+    #   empty or nil, all plugins will be updated.
+    def update(plugins, specific)
+      specific ||= []
+      update = true
+      update = { gems: specific } if !specific.empty?
+      internal_install(plugins, update)
     end
 
     # Clean removes any unused gems.
@@ -86,6 +83,8 @@ module Vagrant
       end
     end
 
+    protected
+
     # Builds a valid Gemfile for use with Bundler given the list of
     # plugins.
     #
@@ -115,7 +114,31 @@ module Vagrant
       end
     end
 
-    protected
+    # This installs a set of plugins and optionally updates those gems.
+    #
+    # @param [Hash] plugins
+    # @param [Hash, Boolean] update If true, updates all plugins, otherwise
+    #   can be a hash of options. See Bundler.definition.
+    # @return [Array<Gem::Specification>]
+    def internal_install(plugins, update)
+      gemfile    = build_gemfile(plugins)
+      lockfile   = "#{gemfile.path}.lock"
+      definition = ::Bundler::Definition.build(gemfile, lockfile, update)
+      root       = File.dirname(gemfile.path)
+      opts       = {}
+
+      with_isolated_gem do
+        ::Bundler::Installer.install(root, definition, opts)
+      end
+
+      # TODO(mitchellh): clean gems here... for some reason when I put
+      # it in on install, we get a GemNotFound exception. Gotta investigate.
+
+      definition.specs
+    rescue ::Bundler::VersionConflict => e
+      raise Errors::PluginInstallVersionConflict,
+        conflicts: e.to_s.gsub("Bundler", "Vagrant")
+    end
 
     def with_isolated_gem
       # Remove bundler settings so that Bundler isn't loaded when building

lib/vagrant/plugin/manager.rb

@@ -61,6 +61,11 @@ module Vagrant
         Vagrant::Bundler.instance.clean(installed_plugins)
       end
 
+      # Updates all or a specific set of plugins.
+      def update_plugins(specific)
+        Vagrant::Bundler.instance.update(installed_plugins, specific)
+      end
+
       # This returns the list of plugins that should be enabled.
       #
       # @return [Hash]

plugins/commands/plugin/action.rb

@@ -38,8 +38,7 @@ module VagrantPlugins
       # This middleware sequence will update a plugin.
       def self.action_update
         Vagrant::Action::Builder.new.tap do |b|
-          b.use PluginExistsCheck
-          b.use InstallGem
+          b.use UpdateGems
         end
       end
 
@@ -50,6 +49,7 @@ module VagrantPlugins
       autoload :ListPlugins, action_root.join("list_plugins")
       autoload :PluginExistsCheck, action_root.join("plugin_exists_check")
       autoload :UninstallPlugin, action_root.join("uninstall_plugin")
+      autoload :UpdateGems, action_root.join("update_gems")
     end
   end
 end

plugins/commands/plugin/action/update_gems.rb

@@ -0,0 +1,51 @@
+require "vagrant/plugin/manager"
+
+module VagrantPlugins
+  module CommandPlugin
+    module Action
+      class UpdateGems
+        def initialize(app, env)
+          @app    = app
+        end
+
+        def call(env)
+          names = env[:plugin_name] || []
+
+          if names.empty?
+            env[:ui].info(I18n.t("vagrant.commands.plugin.updating"))
+          else
+            env[:ui].info(I18n.t("vagrant.commands.plugin.updating_specific",
+                                 names: names.join(", ")))
+          end
+
+          manager = Vagrant::Plugin::Manager.instance
+          installed_specs = manager.installed_specs
+          new_specs       = manager.update_plugins(names)
+
+          updated = {}
+          installed_specs.each do |ispec|
+            new_specs.each do |uspec|
+              next if uspec.name != ispec.name
+              next if ispec.version >= uspec.version
+              next if updated[uspec.name] && updated[uspec.name].version >= uspec.version
+
+              updated[uspec.name] = uspec
+            end
+          end
+
+          if updated.empty?
+            env[:ui].success(I18n.t("vagrant.commands.plugin.up_to_date"))
+          end
+
+          updated.values.each do |spec|
+            env[:ui].success(I18n.t("vagrant.commands.plugin.updated",
+                                    name: spec.name, version: spec.version.to_s))
+          end
+
+          # Continue
+          @app.call(env)
+        end
+      end
+    end
+  end
+end

plugins/commands/plugin/command/update.rb

@@ -10,26 +10,18 @@ module VagrantPlugins
         include MixinInstallOpts
 
         def execute
-          options = {}
-
           opts = OptionParser.new do |o|
-            o.banner = "Usage: vagrant plugin update <name> [-h]"
+            o.banner = "Usage: vagrant plugin update [names...] [-h]"
             o.separator ""
-            build_install_opts(o, options)
           end
 
           # Parse the options
           argv = parse_options(opts)
           return if !argv
-          raise Vagrant::Errors::CLIInvalidUsage, :help => opts.help.chomp if argv.length < 1
 
           # Update the gem
           action(Action.action_update, {
-            :plugin_entry_point => options[:entry_point],
-            :plugin_prerelease  => options[:plugin_prerelease],
-            :plugin_version     => options[:plugin_version],
-            :plugin_sources     => options[:plugin_sources],
-            :plugin_name        => argv[0]
+            :plugin_name        => argv,
           })
 
           # Success, exit status 0

templates/locales/en.yml

@@ -927,6 +927,14 @@ en:
           Installing the '%{name}' plugin. This can take a few minutes...
         uninstalling: |-
           Uninstalling the '%{name}' plugin...
+        up_to_date: |-
+          All plugins are up to date.
+        updated: |-
+          Updated '%{name}' to version '%{version}'!
+        updating: |-
+          Updating installed plugins...
+        updating_specific: |-
+          Updating plugins: %{names}. This may take a few minutes...
         post_install: |-
           Post install message from the '%{name}' plugin: