[DO NOT REVIEW] Add wheel platform support to RubyGems

Manifest.txt

@@ -456,6 +456,11 @@ lib/rubygems/package/tar_writer.rb
 lib/rubygems/package_task.rb
 lib/rubygems/path_support.rb
 lib/rubygems/platform.rb
+lib/rubygems/platform/elffile.rb
+lib/rubygems/platform/manylinux.rb
+lib/rubygems/platform/musllinux.rb
+lib/rubygems/platform/specific.rb
+lib/rubygems/platform/wheel.rb
 lib/rubygems/psych_tree.rb
 lib/rubygems/query_utils.rb
 lib/rubygems/rdoc.rb

bundler/spec/install/gemfile/wheel_platform_spec.rb

@@ -0,0 +1,145 @@
+# frozen_string_literal: true
+
+RSpec.describe "bundle install with wheel platform gems" do
+  before do
+    build_repo4 do
+      # Build wheel platform specific gems
+      build_gem "wheel_native", "1.0.0" do |s|
+        s.platform = "whl-rb33-x86_64_linux"
+        s.write "lib/wheel_native.rb", "WHEEL_NATIVE = '1.0.0 whl-rb33-x86_64_linux'"
+      end
+
+      build_gem "wheel_native", "1.0.0" do |s|
+        s.platform = "whl-rb32-x86_64_linux"
+        s.write "lib/wheel_native.rb", "WHEEL_NATIVE = '1.0.0 whl-rb32-x86_64_linux'"
+      end
+
+      build_gem "wheel_native", "1.0.0" do |s|
+        s.platform = "whl-rb33-x86_64_darwin"
+        s.write "lib/wheel_native.rb", "WHEEL_NATIVE = '1.0.0 whl-rb33-x86_64_darwin'"
+      end
+
+      # Fallback ruby gem
+      build_gem "wheel_native", "1.0.0" do |s|
+        s.platform = "ruby"
+        s.write "lib/wheel_native.rb", "WHEEL_NATIVE = '1.0.0 ruby'"
+      end
+
+      # Multi-tag wheel gem
+      build_gem "multi_wheel", "2.0.0" do |s|
+        s.platform = "whl-rb33.rb32-x86_64_linux"
+        s.write "lib/multi_wheel.rb", "MULTI_WHEEL_VERSION = '2.0.0-whl-rb33.rb32-x86_64_linux'"
+      end
+
+      build_gem "multi_wheel", "2.0.0" do |s|
+        s.platform = "ruby"
+        s.write "lib/multi_wheel.rb", "MULTI_WHEEL_VERSION = '2.0.0-ruby'"
+      end
+    end
+  end
+
+  context "when wheel platform gem is available for current platform" do
+    it "installs the wheel platform specific gem" do
+      skip "Wheel platform detection not fully implemented in resolver yet"
+
+      install_gemfile <<-G
+        source "https://gem.repo4"
+        gem "wheel_native"
+      G
+
+      expect(the_bundle).to include_gems "wheel_native 1.0.0"
+      # Would need to check that the correct platform version was installed
+    end
+  end
+
+  context "when no wheel platform gem matches" do
+    it "falls back to ruby platform gem" do
+      install_gemfile <<-G
+        source "https://gem.repo4"
+        gem "wheel_native"
+      G
+
+      expect(the_bundle).to include_gems "wheel_native 1.0.0"
+
+      ruby <<-R
+        require 'wheel_native'
+        puts WHEEL_NATIVE
+      R
+
+      expect(out).to include("1.0.0 ruby")
+    end
+  end
+
+  context "with multi-tag wheel gems" do
+    it "matches compatible multi-tag wheel gems" do
+      skip "Multi-tag wheel matching not fully implemented yet"
+
+      install_gemfile <<-G
+        source "https://gem.repo4"
+        gem "multi_wheel"
+      G
+
+      expect(the_bundle).to include_gems "multi_wheel 2.0.0"
+    end
+  end
+
+  context "platform resolution priority" do
+    it "prefers wheel platform over traditional platform" do
+      skip "Platform priority not fully implemented in bundler yet"
+
+      build_repo4 do
+        # Traditional platform gem
+        build_gem "priority_test", "1.0.0" do |s|
+          s.platform = "x86_64-linux"
+          s.write "lib/priority_test.rb", "PRIORITY_VERSION = '1.0.0-x86_64-linux'"
+        end
+
+        # Wheel platform gem (should have higher priority)
+        build_gem "priority_test", "1.0.0" do |s|
+          s.platform = "whl-rb33-x86_64_linux"
+          s.write "lib/priority_test.rb", "PRIORITY_VERSION = '1.0.0-whl-rb33-x86_64_linux'"
+        end
+      end
+
+      install_gemfile <<-G
+        source "https://gem.repo4"
+        gem "priority_test"
+      G
+
+      ruby <<-R
+        require 'priority_test'
+        puts PRIORITY_VERSION
+      R
+
+      # Should prefer wheel platform over traditional platform
+      expect(out).to include("whl-rb33-x86_64_linux")
+    end
+  end
+
+  context "lockfile generation with wheel platforms" do
+    it "records wheel platforms in the lockfile" do
+      skip "Lockfile wheel platform recording not implemented yet"
+
+      install_gemfile <<-G
+        source "https://gem.repo4"
+        gem "wheel_native"
+      G
+
+      lockfile_should_be <<-L
+        GEM
+          remote: https://gem.repo4/
+          specs:
+            wheel_native (1.0.0-whl-rb33-x86_64_linux)
+
+        PLATFORMS
+          whl-rb33-x86_64_linux
+
+        DEPENDENCIES
+          wheel_native
+
+        BUNDLED WITH
+           #{Bundler::VERSION}
+      L
+    end
+  end
+end

lib/rubygems/basic_specification.rb

@@ -72,7 +72,7 @@ def base_dir
 
   def contains_requirable_file?(file)
     if ignored?
-      if platform == Gem::Platform::RUBY || Gem::Platform.local === platform
+      if platform == Gem::Platform::RUBY || Gem::Platform::Specific.local === platform
         warn "Ignoring #{full_name} because its extensions are not built. " \
              "Try: gem pristine #{name} --version #{version}"
       end

lib/rubygems/commands/pristine_command.rb

@@ -125,7 +125,7 @@ def execute
       end
     end
 
-    specs = specs.select {|spec| spec.platform == RUBY_ENGINE || Gem::Platform.local === spec.platform || spec.platform == Gem::Platform::RUBY }
+    specs = specs.select {|spec| spec.platform == RUBY_ENGINE || Gem::Platform::Specific.local === spec.platform || spec.platform == Gem::Platform::RUBY }
 
     if specs.to_a.empty?
       raise Gem::Exception,