* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.5.2.

  It supports to enable frozen string literal and add `--norc` option for
  disable to `.gemrc` configuration.
  See 2.5.2 release notes for other fixes and enhancements.
  https://github.com/rubygems/rubygems/blob/a8aa3bac723f045c52471c7b9328310a048561e0/History.txt#L3

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53707 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 6 deletions

diff --git a/lib/rubygems/path_support.rb b/lib/rubygems/path_support.rb
index 0ec29f8b60..afb559d472 100644
--- a/lib/rubygems/path_support.rb
+++ b/lib/rubygems/path_support.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 ##
 #
 # Gem::PathSupport facilitates the GEM_HOME and GEM_PATH environment settings
@@ -59,6 +59,9 @@ class Gem::PathSupport
         gem_path = gpaths.dup
       else
         gem_path = gpaths.split(Gem.path_separator)
+        if gpaths.end_with?(Gem.path_separator)
+          gem_path += default_path
+        end
       end
 
       if File::ALT_SEPARATOR then
@@ -69,13 +72,19 @@ class Gem::PathSupport
 
       gem_path << @home
     else
-      gem_path = Gem.default_path + [@home]
-
-      if defined?(APPLE_GEM_HOME)
-        gem_path << APPLE_GEM_HOME
-      end
+      gem_path = default_path
     end
 
     @path = gem_path.uniq
   end
+
+  # Return the default Gem path
+  def default_path
+    gem_path = Gem.default_path + [@home]
+
+    if defined?(APPLE_GEM_HOME)
+      gem_path << APPLE_GEM_HOME
+    end
+    gem_path
+  end
 end