Fixes #10224: Allow validation of config while ignoring provider

This commit adds a new flag to the `vagrant validate` command which
allows users to completely ignore the provider block of a config file.
This is useful for when you are running `vagrant validate` in CI and
don't want to install a valid provider to check the syntax of your
Vagratnfile. When the flag is invoked, a warning will be displayed
saying that the provider block will be ignored and not validated.

lib/vagrant/action/builtin/config_validate.rb

@@ -12,7 +12,7 @@ module Vagrant
 
         def call(env)
           if !env.key?(:config_validate) || env[:config_validate]
-            errors = env[:machine].config.validate(env[:machine])
+            errors = env[:machine].config.validate(env[:machine], env[:ignore_provider])
 
             if errors && !errors.empty?
               raise Errors::ConfigInvalid,

lib/vagrant/config/v2/root.rb

@@ -60,14 +60,18 @@ module Vagrant
         #
         # @param [Environment] env
         # @return [Hash]
-        def validate(machine)
+        def validate(machine, ignore_provider=nil)
           # Go through each of the configuration keys and validate
           errors = {}
           @keys.each do |_key, instance|
             if instance.respond_to?(:validate)
               # Validate this single item, and if we have errors then
               # we merge them into our total errors list.
+              if _key == :vm
+                result = instance.validate(machine, ignore_provider)
+              else
                 result = instance.validate(machine)
+              end
               if result && !result.empty?
                 errors = Util.merge_errors(errors, result)
               end

plugins/commands/validate/command.rb

@@ -8,17 +8,32 @@ module VagrantPlugins
       end
 
       def execute
+        options = {}
+
         opts = OptionParser.new do |o|
-          o.banner = "Usage: vagrant validate"
+          o.banner = "Usage: vagrant validate [options]"
+          o.separator ""
+          o.separator "Validates a Vagrantfile config"
+          o.separator ""
+          o.separator "Options:"
+          o.separator ""
+
+          o.on("-p", "--ignore-provider", "Ignores provider config options") do |p|
+            options[:ignore_provider] = p
+          end
         end
 
         # Parse the options
         argv = parse_options(opts)
         return if !argv
 
+        action_env = {}
+        if options[:ignore_provider]
+          action_env[:ignore_provider] = true
+        end
         # Validate the configuration of all machines
         with_target_vms() do |machine|
-          machine.action_raw(:config_validate, Vagrant::Action::Builtin::ConfigValidate)
+          machine.action_raw(:config_validate, Vagrant::Action::Builtin::ConfigValidate, action_env)
         end
 
         @env.ui.info(I18n.t("vagrant.commands.validate.success"))

plugins/kernel_v2/config/vm.rb

@@ -582,7 +582,7 @@ module VagrantPlugins
         @__synced_folders
       end
 
-      def validate(machine)
+      def validate(machine, ignore_provider=nil)
         errors = _detected_errors
 
         if !box && !clone && !machine.provider_options[:box_optional]
@@ -737,10 +737,14 @@ module VagrantPlugins
 
         # Validate only the _active_ provider
         if machine.provider_config
+          if !ignore_provider
             provider_errors = machine.provider_config.validate(machine)
             if provider_errors
               errors = Vagrant::Config::V2::Util.merge_errors(errors, provider_errors)
             end
+          else
+            machine.ui.warn(I18n.t("vagrant.config.vm.ignore_provider_config"))
+          end
         end
 
         # Validate provisioners

templates/locales/en.yml

@@ -1845,6 +1845,8 @@ en:
         hostname_invalid_characters: |-
           The hostname set for the VM should only contain letters, numbers,
           hyphens or dots. It cannot start with a hyphen or dot.
+        ignore_provider_config: |-
+          Ignoring provider config for validation...
         name_invalid: |-
           The sub-VM name '%{name}' is invalid. Please don't use special characters.
         network_ip_ends_in_one: |-

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

@@ -5,13 +5,15 @@ describe VagrantPlugins::CommandValidate::Command do
   include_context "unit"
   include_context "command plugin helpers"
 
+  let(:vagrantfile_content){ "" }
   let(:iso_env) do
-    isolated_environment
+    env = isolated_environment
+    env.vagrantfile(vagrantfile_content)
+    env.create_vagrant_env
   end
 
-  let(:env) do
-    iso_env.create_vagrant_env
-  end
+  let(:action_runner) { double("action_runner") }
+  let(:machine) { iso_env.machine(iso_env.machine_names[0], :dummy) }
 
   let(:argv)   { [] }
 
@@ -20,37 +22,49 @@ describe VagrantPlugins::CommandValidate::Command do
     I18n.reload!
   end
 
-  subject { described_class.new(argv, env) }
+  subject { described_class.new(argv, iso_env) }
 
   describe "#execute" do
-    it "validates correct Vagrantfile" do
-      iso_env.vagrantfile(<<-EOH)
+    context "validating configs" do
+      let(:vagrantfile_content) do
+          <<-VF
           Vagrant.configure("2") do |config|
             config.vm.box = "hashicorp/precise64"
           end
-      EOH
-
-      expect(env.ui).to receive(:info).with(any_args) { |message, _|
+          VF
+      end
+      it "validates correct Vagrantfile" do
+        expect(machine).to receive(:action_raw) do |name, action, env|
+          expect(name).to eq(:config_validate)
+          expect(action).to eq(Vagrant::Action::Builtin::ConfigValidate)
+          expect(env).to eq({})
+        end
+        expect(iso_env.ui).to receive(:info).with(any_args) { |message, _|
           expect(message).to include("Vagrantfile validated successfully.")
         }
 
         expect(subject.execute).to eq(0)
       end
+    end
 
-    it "validates the configuration" do
-      iso_env.vagrantfile <<-EOH
+    context "invalid configs" do
+      let(:vagrantfile_content) do
+        <<-VF
         Vagrant.configure("2") do |config|
           config.vm.bix = "hashicorp/precise64"
         end
-      EOH
-
+        VF
+      end
+      it "validates the configuration" do
         expect { subject.execute }.to raise_error(Vagrant::Errors::ConfigInvalid) { |err|
           expect(err.message).to include("The following settings shouldn't exist: bix")
         }
       end
+    end
 
-    it "validates correct Vagrantfile of all vms" do
-      iso_env.vagrantfile <<-EOH
+    context "valid configs for multiple vms" do
+      let(:vagrantfile_content) do
+        <<-VF
         Vagrant.configure("2") do |config|
           config.vm.box = "hashicorp/precise64"
 
@@ -62,17 +76,25 @@ describe VagrantPlugins::CommandValidate::Command do
             vm.vm.provider :virtualbox
           end
         end
-      EOH
-
-      expect(env.ui).to receive(:info).with(any_args) { |message, _|
+        VF
+      end
+      it "validates correct Vagrantfile of all vms" do
+        expect(machine).to receive(:action_raw) do |name, action, env|
+          expect(name).to eq(:config_validate)
+          expect(action).to eq(Vagrant::Action::Builtin::ConfigValidate)
+          expect(env).to eq({})
+        end
+        expect(iso_env.ui).to receive(:info).with(any_args) { |message, _|
           expect(message).to include("Vagrantfile validated successfully.")
         }
 
         expect(subject.execute).to eq(0)
       end
+    end
 
-    it "validates the configuration of all vms" do
-      iso_env.vagrantfile <<-EOH
+    context "an invalid config for some vms" do
+      let(:vagrantfile_content) do
+        <<-VF
         Vagrant.configure("2") do |config|
           config.vm.box = "hashicorp/precise64"
 
@@ -84,15 +106,59 @@ describe VagrantPlugins::CommandValidate::Command do
             vm.vm.not_provider :virtualbox
           end
         end
-      EOH
+        VF
+      end
+      it "validates the configuration of all vms" do
+        expect(machine).to receive(:action_raw) do |name, action, env|
+          expect(name).to eq(:config_validate)
+          expect(action).to eq(Vagrant::Action::Builtin::ConfigValidate)
+          expect(env).to eq({})
+        end
 
         expect { subject.execute }.to raise_error(Vagrant::Errors::ConfigInvalid) { |err|
           expect(err.message).to include("The following settings shouldn't exist: not_provider")
         }
       end
+    end
 
+    context "with the ignore provider flag" do
+      let(:argv) { ["--ignore-provider"]}
+      let(:vagrantfile_content) do
+        <<-VF
+        Vagrant.configure("2") do |config|
+          config.vm.box = "hashicorp/precise64"
+
+          config.vm.define "test" do |vm|
+            vm.vm.hostname = "test"
+            vm.vm.provider :virtualbox do |v|
+              v.not_a_real_option = true
+            end
+          end
+        end
+        VF
+      end
+      it "ignores provider specific configurations with the flag" do
+        expect(iso_env.ui).to receive(:info).with(any_args) { |message, _|
+          expect(message).to include("Vagrantfile validated successfully.")
+        }
+
+        expect(machine).to receive(:action_raw) do |name, action, env|
+          expect(name).to eq(:config_validate)
+          expect(action).to eq(Vagrant::Action::Builtin::ConfigValidate)
+          expect(env).to eq({:ignore_provider=>true})
+        end
+
+        expect(subject.execute).to eq(0)
+      end
+    end
+
+    context "no vagrantfile" do
+      let(:vagrantfile_content){ "" }
+      let(:env) { isolated_environment.create_vagrant_env }
+      subject { described_class.new(argv, env) }
       it "throws an exception if there's no Vagrantfile" do
         expect { subject.execute }.to raise_error(Vagrant::Errors::NoEnvironmentError)
       end
     end
   end
+end

test/unit/plugins/kernel_v2/config/vm_test.rb

@@ -368,6 +368,20 @@ describe VagrantPlugins::Kernel_V2::VMConfig do
       expect { subject.finalize! }.
         to raise_error(Vagrant::Errors::VagrantfileLoadError)
     end
+
+    it "ignores providers entirely if flag is provided" do
+      subject.provider "virtualbox" do |vb|
+        vb.nope = true
+      end
+
+      subject.provider "virtualbox" do |vb|
+        vb.not_real = "foo"
+      end
+
+      subject.finalize!
+      errors = subject.validate(machine, true)
+      expect(errors).to eq({"vm"=>[]})
+    end
   end
 
   describe "#provision" do

test/unit/vagrant/config/v2/root_test.rb

@@ -91,6 +91,24 @@ describe Vagrant::Config::V2::Root do
       expect(instance.validate(env)).to eq(errors)
     end
 
+    context "with vms and ignoring provider validations" do
+      let(:instance) do
+        map = { vm: Object, bar: Object }
+        described_class.new(map)
+      end
+
+      it "should pass along the ignore_provider flag for ignoring validations" do
+        errors = { "vm" => ["errors!"] }
+        env    = { "errors" => errors }
+        vm     = instance.vm
+        def vm.validate(env, param)
+          env["errors"]
+        end
+
+        expect(instance.validate({}, true)).to eq({})
+      end
+    end
+
     it "should merge errors via array concat if matching keys" do
       errors = { "foo" => ["errors!"] }
       env    = { "errors" => errors }