* lib/rubygems: Update to RubyGems master 6a3d9f9. Changes include:

  Compatibly renamed Gem::DependencyResolver to Gem::Resolver.

  Added support for git gems in gem.deps.rb and Gemfile.

  Fixed resolver bugs.

* test/rubygems: ditto.

* lib/rubygems/LICENSE.txt:  Updated to license from RubyGems trunk.
  [ruby-trunk - Bug #9086]

* lib/rubygems/commands/which_command.rb:  RubyGems now indicates
  failure when any file is missing.  [ruby-trunk - Bug #9004]

* lib/rubygems/ext/builder:  Extensions are now installed into the
  extension install directory and the first directory in the require
  path from the gem.  This allows backwards compatibility with msgpack
  and other gems that calculate full require paths.
  [ruby-trunk - Bug #9106]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43714 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 60 insertions, 0 deletions

diff --git a/lib/rubygems/resolver/lock_set.rb b/lib/rubygems/resolver/lock_set.rb
new file mode 100644
index 0000000000..6885e70945
--- /dev/null
+++ b/lib/rubygems/resolver/lock_set.rb
@@ -0,0 +1,60 @@
+##
+# A set of gems from a gem dependencies lockfile.
+
+class Gem::Resolver::LockSet < Gem::Resolver::Set
+
+  attr_reader :specs # :nodoc:
+
+  ##
+  # Creates a new LockSet from the given +source+
+
+  def initialize source
+    @source = source
+    @specs  = []
+  end
+
+  ##
+  # Creates a new IndexSpecification in this set using the given +name+,
+  # +version+ and +platform+.
+  #
+  # The specification's set will be the current set, and the source will be
+  # the current set's source.
+
+  def add name, version, platform # :nodoc:
+    version = Gem::Version.new version
+
+    spec =
+      Gem::Resolver::IndexSpecification.new self, name, version, @source,
+                                            platform
+
+    @specs << spec
+  end
+
+  ##
+  # Returns an Array of IndexSpecification objects matching the
+  # DependencyRequest +req+.
+
+  def find_all req
+    @specs.select do |spec|
+      req.matches_spec? spec
+    end
+  end
+
+  ##
+  # Loads a Gem::Specification with the given +name+, +version+ and
+  # +platform+.  +source+ is ignored.
+
+  def load_spec name, version, platform, source # :nodoc:
+    dep = Gem::Dependency.new name, version
+
+    found = @specs.find do |spec|
+      dep.matches_spec? spec and spec.platform == platform
+    end
+
+    tuple = Gem::NameTuple.new found.name, found.version, found.platform
+
+    found.source.fetch_spec tuple
+  end
+
+end
+