Merge rubygems/bundler master

  Pick from https://github.com/rubygems/rubygems/commit/e9304aed7e43308b99e70c2f7b92028315fee8a5

1 files changed, 4 insertions, 7 deletions

diff --git a/lib/bundler/resolver.rb b/lib/bundler/resolver.rb
index 8237ff53fe..c17086ea78 100644
--- a/lib/bundler/resolver.rb
+++ b/lib/bundler/resolver.rb
@@ -37,7 +37,9 @@ module Bundler
       root_version = Resolver::Candidate.new(0)
 
       @all_specs = Hash.new do |specs, name|
-        specs[name] = source_for(name).specs.search(name).sort_by {|s| [s.version, s.platform.to_s] }
+        specs[name] = source_for(name).specs.search(name).reject do |s|
+          s.dependencies.any? {|d| d.name == name && !d.requirement.satisfied_by?(s.version) } # ignore versions that depend on themselves incorrectly
+        end.sort_by {|s| [s.version, s.platform.to_s] }
       end
 
       @sorted_versions = Hash.new do |candidates, package|
@@ -55,7 +57,7 @@ module Bundler
           { root_version => root_dependencies }
         else
           Hash.new do |versions, version|
-            versions[version] = to_dependency_hash(version.dependencies, @packages)
+            versions[version] = to_dependency_hash(version.dependencies.reject {|d| d.name == package.name }, @packages)
           end
         end
       end
@@ -186,11 +188,6 @@ module Bundler
       package_deps = @cached_dependencies[package]
       sorted_versions = @sorted_versions[package]
       package_deps[version].map do |dep_package, dep_constraint|
-        if package == dep_package
-          cause = PubGrub::Incompatibility::CircularDependency.new(dep_package, dep_constraint.constraint_string)
-          return [PubGrub::Incompatibility.new([PubGrub::Term.new(dep_constraint, true)], :cause => cause)]
-        end
-
         low = high = sorted_versions.index(version)
 
         # find version low such that all >= low share the same dep