Simplify CI config and remove logical validation

lib/gitlab/ci/config.rb

@@ -15,7 +15,6 @@ module Gitlab
 
         @global = Node::Global.new(@config)
         @global.process!
-        @global.validate!
       end
 
       def valid?

lib/gitlab/ci/config/node/entry.rb

@@ -8,13 +8,13 @@ module Gitlab
         class Entry
           class InvalidError < StandardError; end
 
-          attr_reader :config, :attributes
+          attr_reader :config, :metadata
           attr_accessor :key, :parent, :description
 
           def initialize(config, **metadata)
             @config = config
-            @entries = {}
             @metadata = metadata
+            @entries = {}
 
             @validator = self.class.validator.new(self)
             @validator.validate(:new)
@@ -27,13 +27,6 @@ module Gitlab
             @entries.each_value(&:process!)
           end
 
-          def validate!
-            return unless valid?
-
-            @validator.validate(:processed)
-            @entries.each_value(&:validate!)
-          end
-
           def leaf?
             nodes.none?
           end

lib/gitlab/ci/config/node/global.rb

@@ -36,19 +36,13 @@ module Gitlab
           helpers :before_script, :image, :services, :after_script,
                   :variables, :stages, :types, :cache, :jobs
 
-          def initialize(*)
-            super
-
-            @global = self
-          end
-
           private
 
           def compose!
             super
 
-            compose_stages!
             compose_jobs!
+            compose_stages!
           end
 
           def compose_jobs!
@@ -65,9 +59,6 @@ module Gitlab
             # Deprecated `:types` key workaround - if types are defined and
             # stages are not defined we use types definition as stages.
             #
-            # Otherwise we use stages in favor of types, and remove types from
-            # processing.
-            #
             if types_defined? && !stages_defined?
               @entries[:stages] = @entries[:types]
             end

lib/gitlab/ci/config/node/jobs.rb

@@ -11,12 +11,14 @@ module Gitlab
           validations do
             validates :config, type: Hash
 
-            with_options on: :processed do
             validate do
               unless has_visible_job?
                 errors.add(:config, 'should contain at least one visible job')
               end
             end
+
+            def has_visible_job?
+              config.any? { |key, _| !key.to_s.start_with?('.') }
             end
           end
 
@@ -24,10 +26,6 @@ module Gitlab
             @config
           end
 
-          def has_visible_job?
-            @entries.values.any?(&:relevant?)
-          end
-
           private
 
           def create(name, config)

spec/lib/gitlab/ci/config/node/job_spec.rb

@@ -3,10 +3,7 @@ require 'spec_helper'
 describe Gitlab::Ci::Config::Node::Job do
   let(:entry) { described_class.new(config, name: :rspec) }
 
-  before do
-    entry.process!
-    entry.validate!
-  end
+  before { entry.process! }
 
   describe 'validations' do
     context 'when entry config value is correct' do

spec/lib/gitlab/ci/config/node/jobs_spec.rb

@@ -4,10 +4,7 @@ describe Gitlab::Ci::Config::Node::Jobs do
   let(:entry) { described_class.new(config) }
 
   describe 'validations' do
-    before do
-      entry.process!
-      entry.validate!
-    end
+    before { entry.process! }
 
     context 'when entry config value is correct' do
       let(:config) { { rspec: { script: 'rspec' } } }