Allow disable of user plugins if repair command is requested

bin/vagrant

@@ -20,25 +20,17 @@ if argv.include?("-v") || argv.include?("--version")
   exit 0
 end
 
-# This is kind of hacky, and I'd love to find a better way to do this, but
-# if we're accessing the plugin interface, we want to NOT load plugins
-# for this run, because they can actually interfere with the function
-# of the plugin interface.
+# Disable plugin loading for commands where plugins are not required
 argv.each_index do |i|
   arg = argv[i]
 
   if !arg.start_with?("-")
-    if arg == "plugin"
-      ENV["VAGRANT_NO_PLUGINS"] = "1"
-      ENV["VAGRANT_VAGRANTFILE"] = "plugin_command_#{Time.now.to_i}"
+    if ["plugin", "help"].include?(arg) || (arg == "box" && argv[i+1] == "list")
+      ENV['VAGRANT_NO_PLUGINS'] = "1"
     end
 
-    if arg == "help"
-      ENV["VAGRANT_VAGRANTFILE"] = "plugin_command_#{Time.now.to_i}"
-    end
-
-    if arg == "box" && argv[i+1] == "list"
-      ENV["VAGRANT_VAGRANTFILE"] = "plugin_command_#{Time.now.to_i}"
+    if arg == "plugin" && argv[i+1] == "repair"
+      ENV['VAGRANT_DISABLE_PLUGIN_INIT'] = "1"
     end
 
     break
@@ -57,7 +49,7 @@ end
 begin
   require "bundler"
 rescue Errno::EINVAL
-  # Bundler can generated the EINVAL error during initial require, which means
+  # Bundler can generate the EINVAL error during initial require, which means
   # nothing has yet been setup (so no access to I18n). Note that vagrant has
   # failed early and copy information related to problem and possible solution.
   $stderr.puts "Vagrant failed to initialize at a very early stage:\n\n"
@@ -70,32 +62,34 @@ rescue Errno::EINVAL
   exit 255
 end
 
-begin
-  $vagrant_bundler_runtime = Bundler.setup(:default, :plugins)
-rescue Bundler::GemNotFound
-  $stderr.puts "Bundler, the underlying system used to manage Vagrant plugins,"
-  $stderr.puts "is reporting that a plugin or its dependency can't be found."
-  $stderr.puts "This is usually caused by manual tampering with the 'plugins.json'"
-  $stderr.puts "file in the Vagrant home directory. To fix this error, please"
-  $stderr.puts "remove that file and reinstall all your plugins using `vagrant"
-  $stderr.puts "plugin install`."
-rescue Bundler::VersionConflict => e
-  $stderr.puts "Vagrant experienced a version conflict with some installed plugins!"
-  $stderr.puts "This usually happens if you recently upgraded Vagrant. As part of the"
-  $stderr.puts "upgrade process, some existing plugins are no longer compatible with"
-  $stderr.puts "this version of Vagrant. The recommended way to fix this is to remove"
-  $stderr.puts "your existing plugins and reinstall them one-by-one. To remove all"
-  $stderr.puts "plugins:"
-  $stderr.puts ""
-  $stderr.puts "    rm -r ~/.vagrant.d/plugins.json ~/.vagrant.d/gems"
-  $stderr.puts ""
-  $stderr.puts "Note if you have an alternate VAGRANT_HOME environmental variable"
-  $stderr.puts "set, the folders above will be in that directory rather than your"
-  $stderr.puts "user's home directory."
-  $stderr.puts ""
-  $stderr.puts "The error message is shown below:\n\n"
-  $stderr.puts e.message
-  exit 1
+if(defined?(Bundler))
+  begin
+    $vagrant_bundler_runtime = Bundler.setup(:default, :plugins)
+  rescue Bundler::GemNotFound
+    $stderr.puts "Bundler, the underlying system used to manage Vagrant plugins,"
+    $stderr.puts "is reporting that a plugin or its dependency can't be found."
+    $stderr.puts "This is usually caused by manual tampering with the 'plugins.json'"
+    $stderr.puts "file in the Vagrant home directory. To fix this error, please"
+    $stderr.puts "remove that file and reinstall all your plugins using `vagrant"
+    $stderr.puts "plugin install`."
+  rescue Bundler::VersionConflict => e
+    $stderr.puts "Vagrant experienced a version conflict with some installed plugins!"
+    $stderr.puts "This usually happens if you recently upgraded Vagrant. As part of the"
+    $stderr.puts "upgrade process, some existing plugins are no longer compatible with"
+    $stderr.puts "this version of Vagrant. The recommended way to fix this is to remove"
+    $stderr.puts "your existing plugins and reinstall them one-by-one. To remove all"
+    $stderr.puts "plugins:"
+    $stderr.puts ""
+    $stderr.puts "    rm -r ~/.vagrant.d/plugins.json ~/.vagrant.d/gems"
+    $stderr.puts ""
+    $stderr.puts "Note if you have an alternate VAGRANT_HOME environmental variable"
+    $stderr.puts "set, the folders above will be in that directory rather than your"
+    $stderr.puts "user's home directory."
+    $stderr.puts ""
+    $stderr.puts "The error message is shown below:\n\n"
+    $stderr.puts e.message
+    exit 1
+  end
 end
 
 # Stdout/stderr should not buffer output

lib/vagrant.rb

@@ -256,7 +256,7 @@ end
 # Setup the plugin manager and load any defined plugins
 require_relative "vagrant/plugin/manager"
 plugins = Vagrant::Plugin::Manager.instance.installed_plugins
-Vagrant::Bundler.instance.init!(plugins)
+Vagrant::Bundler.instance.init!(plugins) unless ENV['VAGRANT_DISABLE_PLUGIN_INIT'] == "1"
 
 # A lambda that knows how to load plugins from a single directory.
 plugin_load_proc = lambda do |directory|