Support XDG_* (#2174)

* Support XDG_CONFIG_HOME for gemrc.

* Support XDG_DATA_HOME for .gem

* Added test for XDG_DATA_HOME

* Do not reuse environmental variable.

* Unify .rdoc path to RDoc.home.

* Support XDG_DATA_HOME for .rdoc

* Ignore exists?

* Extracted config_home path

* Use XDG_CONFIG_HOME for default credential path

* Fixed inconsistency location.

* Fixed the broken tests.

* Support XDG_CONFIG_HOME for irbrc

* Introduce Gem.cache_home as XDG_CACHE_HOME

* Use Gem.cache_home instead of Gem.config_home for the credential file of RubyGems.

* Initialized the old configurations

* Fixed test failure related the configuration initialization

* restore XDG_DATA_HOME

* Fixed the broken examples of bundler with XDG_*

* Do not modify environmental variable on test file

* Use XDG_DATA_HOME insted of XDG_CACHE_HOME for credential file

* stub out Gem.data_home

* Move dir accessor to defaults.rb file

* Use XDG_DATA_HOME for signed gem features

* Use XDG_DATA_HOME for spec cache

* Do not rely on Gem.user_home

* Gem.user_home is always exists. Don't need to use FileUitls.mkdir_p

* Bump support version to RubyGems 3.2.0+

* Removed the needless fallback configuration

* Fixed the inconsistency methods that are find_config_file and config_file

* Use Gem.configuration.credentials_path instead of hard-coded path

* gem_path is always provided

* Removed the duplicated code of find_home

* Also removed the duplicated code of user_home

* use Gem::UNTAINT instead of untaint for surpressing the warnings

* Use File.directory

* Restore XDG_DATA_HOME

* Use File.write

1 files changed, 6 insertions, 1 deletions

diff --git a/test/rdoc/test_rdoc_store.rb b/test/rdoc/test_rdoc_store.rb
index 8332d9233e..076b8e7d4e 100644
--- a/test/rdoc/test_rdoc_store.rb
+++ b/test/rdoc/test_rdoc_store.rb
@@ -317,6 +317,9 @@ class TestRDocStore < XrefTestCase
   end
 
   def test_friendly_path
+    @orig_xdg_data_home = ENV['XDG_DATA_HOME']
+    ENV.delete('XDG_DATA_HOME')
+
     @s.path = @tmpdir
     @s.type = nil
     assert_equal @s.path, @s.friendly_path
@@ -331,11 +334,13 @@ class TestRDocStore < XrefTestCase
     assert_equal "ruby site", @s.friendly_path
 
     @s.type = :home
-    assert_equal "~/.rdoc", @s.friendly_path
+    assert_equal File.expand_path("~/.local/share/rdoc"), @s.friendly_path
 
     @s.type = :gem
     @s.path = "#{@tmpdir}/gem_repository/doc/gem_name-1.0/ri"
     assert_equal "gem gem_name-1.0", @s.friendly_path
+  ensure
+    ENV['XDG_DATA_HOME'] = @orig_xdg_data_home
   end
 
   def test_dry_run