Extract job refs policy specs into separate class

lib/gitlab/ci/build/policy/refs.rb

+module Gitlab
+  module Ci
+    module Build
+      module Policy
+        class Refs < Policy::Specification
+          def initialize(refs)
+            @patterns = Array(refs)
+          end
+
+          def satisfied_by?(pipeline, path:)
+            @patterns.any? do |pattern|
+              pattern, ref_path = pattern.split('@', 2)
+
+              matches_path?(ref_path, path) &&
+                matches_pattern?(pattern, pipeline)
+            end
+          end
+
+          private
+
+          def matches_path?(ref_path, expected_path)
+            return true unless ref_path
+
+            expected_path == ref_path
+          end
+
+          def matches_pattern?(pattern, pipeline)
+            return true if pipeline.tag? && pattern == 'tags'
+            return true if !pipeline.tag? && pattern == 'branches'
+            return true if source_to_pattern(pipeline.source) == pattern
+
+            if pattern.first == "/" && pattern.last == "/"
+              Regexp.new(pattern[1...-1]) =~ pipeline.ref
+            else
+              pattern == pipeline.ref
+            end
+          end
+
+          def source_to_pattern(source)
+            if %w[api external web].include?(source)
+              source
+            else
+              source&.pluralize
+            end
+          end
+        end
+      end
+    end
+  end
+end

lib/gitlab/ci/yaml_processor.rb

@@ -21,10 +21,11 @@ module Gitlab
         raise ValidationError, e.message
       end
+
+      # REFACTORING STUB, remove this method, used only in tests.
+      #
       def builds_for_stage_and_ref(stage, ref, tag = false, source = nil)
-        jobs_for_stage_and_ref(stage, ref, tag, source).map do |name, _|
-          build_attributes(name)
-        end
+        pipeline_stage_builds(stage, ::Ci::Pipeline.new(ref: ref, source: source, tag: tag))
       end
       def builds
@@ -84,32 +85,19 @@ module Gitlab
       private
       def pipeline_stage_builds(stage, pipeline)
-        builds = builds_for_stage_and_ref(
-          stage, pipeline.ref, pipeline.tag?, pipeline.source)
-
-        builds.select do |build|
-          job = @jobs[build.fetch(:name).to_sym]
+        stage_jobs = @jobs.select do |_, job|
+          next unless job[:stage] == stage
           only_specs = Gitlab::Ci::Build::Policy
             .fabricate(job.fetch(:only, {}))
           except_specs = Gitlab::Ci::Build::Policy
             .fabricate(job.fetch(:except, {}))
-          only_specs.all? { |spec| spec.satisfied_by?(pipeline) } &&
-            except_specs.none? { |spec| spec.satisfied_by?(pipeline) }
-        end
-      end
-
-      def jobs_for_ref(ref, tag = false, source = nil)
-        @jobs.select do |_, job|
-          process?(job.dig(:only, :refs), job.dig(:except, :refs), ref, tag, source)
+          only_specs.all? { |spec| spec.satisfied_by?(pipeline, path: @path) } &&
+            except_specs.none? { |spec| spec.satisfied_by?(pipeline, path: @path) }
         end
-      end
-      def jobs_for_stage_and_ref(stage, ref, tag = false, source = nil)
-        jobs_for_ref(ref, tag, source).select do |_, job|
-          job[:stage] == stage
-        end
+        stage_jobs.map { |_, job| build_attributes(job[:name]) }
       end
       def initial_parsing
@@ -204,51 +192,6 @@ module Gitlab
           raise ValidationError, "#{name} job: on_stop job #{on_stop} needs to have action stop defined"
         end
       end
-
-      def process?(only_params, except_params, ref, tag, source)
-        if only_params.present?
-          return false unless matching?(only_params, ref, tag, source)
-        end
-
-        if except_params.present?
-          return false if matching?(except_params, ref, tag, source)
-        end
-
-        true
-      end
-
-      def matching?(patterns, ref, tag, source)
-        patterns.any? do |pattern|
-          pattern, path = pattern.split('@', 2)
-          matches_path?(path) && matches_pattern?(pattern, ref, tag, source)
-        end
-      end
-
-      def matches_path?(path)
-        return true unless path
-
-        path == self.path
-      end
-
-      def matches_pattern?(pattern, ref, tag, source)
-        return true if tag && pattern == 'tags'
-        return true if !tag && pattern == 'branches'
-        return true if source_to_pattern(source) == pattern
-
-        if pattern.first == "/" && pattern.last == "/"
-          Regexp.new(pattern[1...-1]) =~ ref
-        else
-          pattern == ref
-        end
-      end
-
-      def source_to_pattern(source)
-        if %w[api external web].include?(source)
-          source
-        else
-          source&.pluralize
-        end
-      end
     end
   end
 end