Simplify SpecGroup creation

Author: deivid-rodriguez

bundler/lib/bundler/resolver.rb

@@ -136,15 +136,15 @@ def search_for(dependency_proxy)
               current_specs[current_platform] = select_best_platform_match(specs, current_platform)
             end
 
-            spec_group_ruby = SpecGroup.create_for(specs_by_platform, [Gem::Platform::RUBY], Gem::Platform::RUBY)
-            if spec_group_ruby
+            if specs_by_platform[Gem::Platform::RUBY].any?
+              spec_group_ruby = SpecGroup.create_for(specs_by_platform, [Gem::Platform::RUBY])
               spec_group_ruby.force_ruby_platform = dependency.force_ruby_platform
               groups << spec_group_ruby
             end
 
             next groups if @resolving_only_for_ruby || dependency.force_ruby_platform
 
-            spec_group = SpecGroup.create_for(specs_by_platform, @platforms, platform)
+            spec_group = SpecGroup.create_for(specs_by_platform, @platforms)
             groups << spec_group
 
             groups

bundler/lib/bundler/resolver/spec_group.rb

@@ -6,20 +6,17 @@ class SpecGroup
       attr_accessor :name, :version, :source
       attr_accessor :activated_platforms, :force_ruby_platform
 
-      def self.create_for(specs, all_platforms, specific_platform)
-        specific_platform_specs = specs[specific_platform]
-        return unless specific_platform_specs.any?
-
+      def self.create_for(specs, all_platforms)
         platforms = all_platforms.select {|p| specs[p].any? }
 
-        new(specific_platform_specs.first, specs, platforms)
+        new(specs, platforms)
       end
 
-      def initialize(exemplary_spec, specs, relevant_platforms)
-        @exemplary_spec = exemplary_spec
-        @name = exemplary_spec.name
-        @version = exemplary_spec.version
-        @source = exemplary_spec.source
+      def initialize(specs, relevant_platforms)
+        @exemplary_spec = specs[relevant_platforms.first].first
+        @name = @exemplary_spec.name
+        @version = @exemplary_spec.version
+        @source = @exemplary_spec.source
 
         @activated_platforms = relevant_platforms
         @dependencies = Hash.new do |dependencies, platforms|

bundler/spec/bundler/gem_version_promoter_spec.rb

@@ -28,7 +28,7 @@ def keep_locked(options)
 
     def build_spec_groups(name, versions)
       versions.map do |v|
-        Bundler::Resolver::SpecGroup.create_for({ Gem::Platform::RUBY => build_spec(name, v) }, [Gem::Platform::RUBY], Gem::Platform::RUBY)
+        Bundler::Resolver::SpecGroup.create_for({ Gem::Platform::RUBY => build_spec(name, v) }, [Gem::Platform::RUBY])
       end
     end