Fix dependency source bug in bundler

bundler/lib/bundler/definition.rb

@@ -1066,7 +1066,22 @@ def converge_specs(specs)
 
           deps << dep if !replacement_source || lockfile_source.include?(replacement_source) || new_deps.include?(dep)
         else
-          replacement_source = sources.get(lockfile_source)
+          parent_dep = @dependencies.find do |d|
+            next unless d.source && d.source != lockfile_source
+            next if d.source.is_a?(Source::Gemspec)
+
+            parent_locked_specs = @originally_locked_specs[d.name]
+
+            parent_locked_specs.any? do |parent_spec|
+              parent_spec.runtime_dependencies.any? {|rd| rd.name == s.name }
+            end
+          end
+
+          if parent_dep
+            replacement_source = parent_dep.source
+          else
+            replacement_source = sources.get(lockfile_source)
+          end
         end
 
         # Replace the locked dependency's source with the equivalent source from the Gemfile

bundler/spec/install/gemfile/sources_spec.rb

@@ -1079,4 +1079,120 @@
       expect(lockfile).to eq original_lockfile.gsub("bigdecimal (1.0.0)", "bigdecimal (3.3.1)")
     end
   end
+
+  context "when switching a gem with components from rubygems to git source" do
+    before do
+      build_repo2 do
+        build_gem "rails", "7.0.0" do |s|
+          s.add_dependency "actionpack", "7.0.0"
+          s.add_dependency "activerecord", "7.0.0"
+        end
+        build_gem "actionpack", "7.0.0"
+        build_gem "activerecord", "7.0.0"
+        # propshaft also depends on actionpack, creating the conflict
+        build_gem "propshaft", "1.0.0" do |s|
+          s.add_dependency "actionpack", ">= 7.0.0"
+        end
+      end
+
+      build_git "rails", "7.0.0", path: lib_path("rails") do |s|
+        s.add_dependency "actionpack", "7.0.0"
+        s.add_dependency "activerecord", "7.0.0"
+      end
+
+      build_git "actionpack", "7.0.0", path: lib_path("rails")
+      build_git "activerecord", "7.0.0", path: lib_path("rails")
+
+      install_gemfile <<-G
+        source "https://gem.repo2"
+        gem "rails", "7.0.0"
+        gem "propshaft"
+      G
+    end
+
+    it "moves component gems to the git source in the lockfile" do
+      expect(lockfile).to include("remote: https://gem.repo2")
+      expect(lockfile).to include("rails (7.0.0)")
+      expect(lockfile).to include("actionpack (7.0.0)")
+      expect(lockfile).to include("activerecord (7.0.0)")
+      expect(lockfile).to include("propshaft (1.0.0)")
+
+      gemfile <<-G
+        source "https://gem.repo2"
+        gem "rails", git: "#{lib_path("rails")}"
+        gem "propshaft"
+      G
+
+      bundle "install"
+
+      expect(lockfile).to include("remote: #{lib_path("rails")}")
+      expect(lockfile).to include("rails (7.0.0)")
+      expect(lockfile).to include("actionpack (7.0.0)")
+      expect(lockfile).to include("activerecord (7.0.0)")
+
+      # Component gems should NOT remain in the GEM section
+      # Extract just the GEM section by splitting on GIT first, then GEM
+      gem_section = lockfile.split("GEM\n").last.split(/\n(PLATFORMS|DEPENDENCIES)/)[0]
+      expect(gem_section).not_to include("actionpack (7.0.0)")
+      expect(gem_section).not_to include("activerecord (7.0.0)")
+    end
+  end
+
+  context "when switching a gem with components from rubygems to path source" do
+    before do
+      build_repo2 do
+        build_gem "rails", "7.0.0" do |s|
+          s.add_dependency "actionpack", "7.0.0"
+          s.add_dependency "activerecord", "7.0.0"
+        end
+        build_gem "actionpack", "7.0.0"
+        build_gem "activerecord", "7.0.0"
+        # propshaft also depends on actionpack, creating the conflict
+        build_gem "propshaft", "1.0.0" do |s|
+          s.add_dependency "actionpack", ">= 7.0.0"
+        end
+      end
+
+      build_lib "rails", "7.0.0", path: lib_path("rails") do |s|
+        s.add_dependency "actionpack", "7.0.0"
+        s.add_dependency "activerecord", "7.0.0"
+      end
+
+      build_lib "actionpack", "7.0.0", path: lib_path("rails")
+      build_lib "activerecord", "7.0.0", path: lib_path("rails")
+
+      install_gemfile <<-G
+        source "https://gem.repo2"
+        gem "rails", "7.0.0"
+        gem "propshaft"
+      G
+    end
+
+    it "moves component gems to the path source in the lockfile" do
+      expect(lockfile).to include("remote: https://gem.repo2")
+      expect(lockfile).to include("rails (7.0.0)")
+      expect(lockfile).to include("actionpack (7.0.0)")
+      expect(lockfile).to include("activerecord (7.0.0)")
+      expect(lockfile).to include("propshaft (1.0.0)")
+
+      gemfile <<-G
+        source "https://gem.repo2"
+        gem "rails", path: "#{lib_path("rails")}"
+        gem "propshaft"
+      G
+
+      bundle "install"
+
+      expect(lockfile).to include("remote: #{lib_path("rails")}")
+      expect(lockfile).to include("rails (7.0.0)")
+      expect(lockfile).to include("actionpack (7.0.0)")
+      expect(lockfile).to include("activerecord (7.0.0)")
+
+      # Component gems should NOT remain in the GEM section
+      # Extract just the GEM section by splitting appropriately
+      gem_section = lockfile.split("GEM\n").last.split(/\n(PLATFORMS|DEPENDENCIES)/)[0]
+      expect(gem_section).not_to include("actionpack (7.0.0)")
+      expect(gem_section).not_to include("activerecord (7.0.0)")
+    end
+  end
 end