Raise if ruby platform is forced and there are no ruby variants

bundler/lib/bundler/index.rb

@@ -192,11 +192,7 @@ def search_by_dependency(dependency, base = nil)
         specs += base if base
         found = specs.select do |spec|
           next true if spec.source.is_a?(Source::Gemspec)
-          if base # allow all platforms when searching from a lockfile
-            dependency.matches_spec?(spec)
-          else
-            dependency.matches_spec?(spec) && Gem::Platform.match_spec?(spec)
-          end
+          dependency.matches_spec?(spec)
         end
 
         found

bundler/lib/bundler/lazy_specification.rb

@@ -84,7 +84,7 @@ def __materialize__
         else
           ruby_platform_materializes_to_ruby_platform? ? self : Dependency.new(name, version)
         end
-        platform_object = Gem::Platform.new(platform)
+        platform_object = ruby_platform_materializes_to_ruby_platform? ? Gem::Platform.new(platform) : Gem::Platform.local
         candidates = source.specs.search(search_object)
         same_platform_candidates = candidates.select do |spec|
           MatchPlatform.platforms_match?(spec.platform, platform_object)
@@ -152,7 +152,7 @@ def method_missing(method, *args, &blk)
     # explicitly add a more specific platform.
     #
     def ruby_platform_materializes_to_ruby_platform?
-      !Bundler.most_specific_locked_platform?(Gem::Platform::RUBY) || Bundler.settings[:force_ruby_platform]
+      !Bundler.most_specific_locked_platform?(generic_local_platform) || Bundler.settings[:force_ruby_platform]
     end
   end
 end

bundler/lib/bundler/match_platform.rb

@@ -15,7 +15,6 @@ def self.platforms_match?(gemspec_platform, local_platform)
       return true if Gem::Platform::RUBY == gemspec_platform
       return true if local_platform == gemspec_platform
       gemspec_platform = Gem::Platform.new(gemspec_platform)
-      return true if GemHelpers.generic(gemspec_platform) === local_platform
       return true if gemspec_platform === local_platform
 
       false

bundler/lib/bundler/resolver.rb

@@ -284,7 +284,7 @@ def gem_not_found_message(name, requirement, source, extra_message = "")
       if specs_matching_requirement.any?
         specs = specs_matching_requirement
         matching_part = requirement_label
-        requirement_label = "#{requirement_label} #{requirement.__platform}"
+        requirement_label = "#{requirement_label}' with platform '#{requirement.__platform}"
       end
 
       message = String.new("Could not find gem '#{requirement_label}'#{extra_message} in #{source}#{cache_message}.\n")

bundler/lib/bundler/spec_set.rb

@@ -24,7 +24,7 @@ def for(dependencies, check = false, match_current_platform = false)
         # use a hash here to ensure constant lookup time in the `any?` call above
         handled[dep.name] << dep
 
-        specs_for_dep = spec_for_dependency(dep, match_current_platform)
+        specs_for_dep = specs_for_dependency(dep, match_current_platform)
         if specs_for_dep.any?
           specs.concat(specs_for_dep)
 
@@ -173,12 +173,13 @@ def tsort_each_node
       @specs.sort_by(&:name).each {|s| yield s }
     end
 
-    def spec_for_dependency(dep, match_current_platform)
-      specs_for_platforms = lookup[dep.name]
+    def specs_for_dependency(dep, match_current_platform)
+      specs_for_name = lookup[dep.name]
       if match_current_platform
-        GemHelpers.select_best_platform_match(specs_for_platforms.select {|s| Gem::Platform.match_spec?(s) }, Bundler.local_platform)
+        GemHelpers.select_best_platform_match(specs_for_name.select {|s| Gem::Platform.match_spec?(s) }, Bundler.local_platform)
       else
-        GemHelpers.select_best_platform_match(specs_for_platforms, dep.__platform)
+        specs_for_name_and_platform = GemHelpers.select_best_platform_match(specs_for_name, dep.__platform)
+        specs_for_name_and_platform.any? ? specs_for_name_and_platform : specs_for_name
       end
     end
 

bundler/spec/install/gemfile/specific_platform_spec.rb

@@ -283,76 +283,97 @@
   end
 
   it "does not resolve if the current platform does not match any of available platform specific variants for a top level dependency" do
-    build_repo2 do
+    build_repo4 do
       build_gem("sorbet-static", "0.5.6433") {|s| s.platform = "x86_64-linux" }
       build_gem("sorbet-static", "0.5.6433") {|s| s.platform = "universal-darwin-20" }
     end
 
     gemfile <<~G
-      source "#{file_uri_for(gem_repo2)}"
+      source "#{file_uri_for(gem_repo4)}"
 
       gem "sorbet-static", "0.5.6433"
     G
 
     error_message = <<~ERROR.strip
-      Could not find gem 'sorbet-static (= 0.5.6433) arm64-darwin-21' in rubygems repository #{file_uri_for(gem_repo2)}/ or installed locally.
+      Could not find gem 'sorbet-static (= 0.5.6433)' with platform 'arm64-darwin-21' in rubygems repository #{file_uri_for(gem_repo4)}/ or installed locally.
 
       The source contains the following gems matching 'sorbet-static (= 0.5.6433)':
         * sorbet-static-0.5.6433-universal-darwin-20
         * sorbet-static-0.5.6433-x86_64-linux
     ERROR
 
     simulate_platform "arm64-darwin-21" do
-      bundle "install", :raise_on_error => false
+      bundle "lock", :raise_on_error => false
     end
 
     expect(err).to include(error_message).once
 
     # Make sure it doesn't print error twice in verbose mode
 
     simulate_platform "arm64-darwin-21" do
-      bundle "install --verbose", :raise_on_error => false
+      bundle "lock --verbose", :raise_on_error => false
     end
 
     expect(err).to include(error_message).once
   end
 
   it "does not resolve if the current platform does not match any of available platform specific variants for a transitive dependency" do
-    build_repo2 do
+    build_repo4 do
       build_gem("sorbet", "0.5.6433") {|s| s.add_dependency "sorbet-static", "= 0.5.6433" }
       build_gem("sorbet-static", "0.5.6433") {|s| s.platform = "x86_64-linux" }
       build_gem("sorbet-static", "0.5.6433") {|s| s.platform = "universal-darwin-20" }
     end
 
     gemfile <<~G
-      source "#{file_uri_for(gem_repo2)}"
+      source "#{file_uri_for(gem_repo4)}"
 
       gem "sorbet", "0.5.6433"
     G
 
     error_message = <<~ERROR.strip
-      Could not find gem 'sorbet-static (= 0.5.6433) arm64-darwin-21', which is required by gem 'sorbet (= 0.5.6433)', in rubygems repository #{file_uri_for(gem_repo2)}/ or installed locally.
+      Could not find gem 'sorbet-static (= 0.5.6433)' with platform 'arm64-darwin-21', which is required by gem 'sorbet (= 0.5.6433)', in rubygems repository #{file_uri_for(gem_repo4)}/ or installed locally.
 
       The source contains the following gems matching 'sorbet-static (= 0.5.6433)':
         * sorbet-static-0.5.6433-universal-darwin-20
         * sorbet-static-0.5.6433-x86_64-linux
     ERROR
 
     simulate_platform "arm64-darwin-21" do
-      bundle "install", :raise_on_error => false
+      bundle "lock", :raise_on_error => false
     end
 
     expect(err).to include(error_message).once
 
     # Make sure it doesn't print error twice in verbose mode
 
     simulate_platform "arm64-darwin-21" do
-      bundle "install --verbose", :raise_on_error => false
+      bundle "lock --verbose", :raise_on_error => false
     end
 
     expect(err).to include(error_message).once
   end
 
+  it "does not generate a lockfile if RUBY platform is forced and some gem has no RUBY variant available" do
+    build_repo4 do
+      build_gem("sorbet-static", "0.5.9889") {|s| s.platform = Gem::Platform.local }
+    end
+
+    gemfile <<~G
+      source "#{file_uri_for(gem_repo4)}"
+
+      gem "sorbet-static", "0.5.9889"
+    G
+
+    bundle "lock", :raise_on_error => false, :env => { "BUNDLE_FORCE_RUBY_PLATFORM" => "true" }
+
+    expect(err).to include <<~ERROR.rstrip
+      Could not find gem 'sorbet-static (= 0.5.9889)' with platform 'ruby' in rubygems repository #{file_uri_for(gem_repo4)}/ or installed locally.
+
+      The source contains the following gems matching 'sorbet-static (= 0.5.9889)':
+        * sorbet-static-0.5.9889-#{Gem::Platform.local}
+    ERROR
+  end
+
   private
 
   def setup_multiplatform_gem