Content of RPM ruby2.5-rubygem-ref-2.0.0-1.4.x86_64.rpm :
/usr/lib64/ruby/gems/2.5.0/cache/ref-2.0.0.gem
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/MIT_LICENSE
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/README.md
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext/java
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext/java/org
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext/java/org/jruby
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext/java/org/jruby/ext
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext/java/org/jruby/ext/ref
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext/java/org/jruby/ext/ref/ReferencesService.java
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext/java/org/jruby/ext/ref/RubySoftReference.java
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/ext/java/org/jruby/ext/ref/RubyWeakReference.java
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/abstract_reference_key_map.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/abstract_reference_value_map.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/reference.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/reference_queue.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/soft_key_map.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/soft_reference.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/soft_value_map.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/strong_reference.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/version.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/weak_key_map.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/weak_reference
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/weak_reference.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/weak_reference/pure_ruby.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/weak_reference/weak_ref.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref/weak_value_map.rb
/usr/lib64/ruby/gems/2.5.0/gems/ref-2.0.0/lib/ref_ext.jar
/usr/lib64/ruby/gems/2.5.0/specifications/ref-2.0.0.gemspec
/usr/share/doc/packages/ruby2.5-rubygem-ref
/usr/share/doc/packages/ruby2.5-rubygem-ref/README.md