Merge pull request #10467 from briancain/validate-ignore-provider-installed

Fixes #10224: Clear our registered providers when validating configs …

plugins/commands/validate/command.rb

@@ -30,7 +30,9 @@ module VagrantPlugins
         action_env = {}
         if options[:ignore_provider]
           action_env[:ignore_provider] = true
+          tmp_data_dir = mockup_providers!
         end
+
         # Validate the configuration of all machines
         with_target_vms() do |machine|
           machine.action_raw(:config_validate, Vagrant::Action::Builtin::ConfigValidate, action_env)
@@ -40,6 +42,62 @@ module VagrantPlugins
 
         # Success, exit status 0
         0
+      ensure
+        FileUtils.remove_entry tmp_data_dir if tmp_data_dir
+      end
+
+      protected
+
+      # This method is required to bypass some of the provider checks that would
+      # otherwise raise exceptions before Vagrant could load and validate a config.
+      # It essentially ignores that there are no installed or usable prodivers so
+      # that Vagrant can go along and validate the rest of the Vagrantfile and ignore
+      # any provider blocks.
+      #
+      # return [String] tmp_data_dir - Temporary dir used to store guest metadata during validation
+      def mockup_providers!
+        require 'log4r'
+        logger = Log4r::Logger.new("vagrant::validate")
+        logger.debug("Overriding all registered provider classes for validate")
+
+        # Without setting up a tmp Environment, Vagrant will completely
+        # erase the local data dotfile and you can lose state after the
+        # validate command completes.
+        tmp_data_dir = Dir.mktmpdir("vagrant-validate-")
+        @env = Vagrant::Environment.new(
+          cwd: @env.cwd,
+          home_path: @env.home_path,
+          ui_class: @env.ui_class,
+          vagrantfile_name: @env.vagrantfile_name,
+          local_data_path: tmp_data_dir,
+          data_dir: tmp_data_dir
+        )
+
+        Vagrant.plugin("2").manager.providers.each do |key, data|
+          data[0].class_eval do
+            def initialize(machine)
+            end
+
+            def machine_id_changed
+            end
+
+            def self.installed?
+              true
+            end
+
+            def self.usable?(raise_error=false)
+              true
+            end
+
+            def state
+              state_id = Vagrant::MachineState::NOT_CREATED_ID
+              short = :not_created
+              long = :not_created
+              Vagrant::MachineState.new(state_id, short, long)
+            end
+          end
+        end
+        tmp_data_dir
       end
     end
   end

test/unit/plugins/commands/validate/command_test.rb

@@ -138,6 +138,8 @@ describe VagrantPlugins::CommandValidate::Command do
         VF
       end
       it "ignores provider specific configurations with the flag" do
+        allow(subject).to receive(:mockup_providers!).and_return("")
+        allow(FileUtils).to receive(:remove_entry).and_return(true)
         expect(iso_env.ui).to receive(:info).with(any_args) { |message, _|
           expect(message).to include("Vagrantfile validated successfully.")
         }