Merge pull request #4648 from rubygems/fix_bundle_outdated_when_gems_no_longer_deps_after_update

Fix `bundle outdated` edge case

(cherry picked from commit 64168eb)

Author: deivid-rodriguez

bundler/lib/bundler/cli/outdated.rb

@@ -147,6 +147,8 @@ def nothing_outdated_message
 
     def retrieve_active_spec(definition, current_spec)
       active_spec = definition.resolve.find_by_name_and_platform(current_spec.name, current_spec.platform)
+      return unless active_spec
+
       return active_spec if strict
 
       active_specs = active_spec.source.specs.search(current_spec.name).select {|spec| spec.match_platform(current_spec.platform) }.sort_by(&:version)

bundler/spec/commands/outdated_spec.rb

@@ -1292,4 +1292,53 @@ def test_group_option(group)
       expect(out).to end_with(expected_output)
     end
   end
+
+  context "when a gem is no longer a dependency after a full update" do
+    before do
+      build_repo4 do
+        build_gem "mini_portile2", "2.5.2" do |s|
+          s.add_dependency "net-ftp", "~> 0.1"
+        end
+
+        build_gem "mini_portile2", "2.5.3"
+
+        build_gem "net-ftp", "0.1.2"
+      end
+
+      gemfile <<~G
+        source "#{file_uri_for(gem_repo4)}"
+
+        gem "mini_portile2"
+      G
+
+      lockfile <<~L
+        GEM
+          remote: #{file_uri_for(gem_repo4)}/
+          specs:
+            mini_portile2 (2.5.2)
+              net-ftp (~> 0.1)
+            net-ftp (0.1.2)
+
+        PLATFORMS
+          #{lockfile_platforms}
+
+        DEPENDENCIES
+          mini_portile2
+
+        BUNDLED WITH
+           #{Bundler::VERSION}
+      L
+    end
+
+    it "works" do
+      bundle "outdated", :raise_on_error => false
+
+      expected_output = <<~TABLE.strip
+        Gem            Current  Latest  Requested  Groups
+        mini_portile2  2.5.2    2.5.3   >= 0       default
+      TABLE
+
+      expect(out).to end_with(expected_output)
+    end
+  end
 end