Merge rubygems-3.0.2.

  https://blog.rubygems.org/2019/01/01/3.0.2-released.html

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66678 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 16 insertions, 1 deletions

diff --git a/lib/rubygems/requirement.rb b/lib/rubygems/requirement.rb
index 1a73274c01..48f4b00d63 100644
--- a/lib/rubygems/requirement.rb
+++ b/lib/rubygems/requirement.rb
@@ -267,7 +267,22 @@ class Gem::Requirement
 
   def ==(other) # :nodoc:
     return unless Gem::Requirement === other
-    requirements == other.requirements
+
+    # An == check is always necessary
+    return false unless requirements == other.requirements
+
+    # An == check is sufficient unless any requirements use ~>
+    return true unless _tilde_requirements.any?
+
+    # If any requirements use ~> we use the stricter `#eql?` that also checks
+    # that version precision is the same
+    _tilde_requirements.eql?(other._tilde_requirements)
+  end
+
+  protected
+
+  def _tilde_requirements
+    requirements.select { |r| r.first == "~>" }
   end
 
   private