ruby/lib/rubygems/resolver/vendor_set.rb
drbrain a7fa4d5d9a * 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
2013-11-19 00:34:13 +00:00

66 lines
1.6 KiB
Ruby

##
# A VendorSet represents gems that have been unpacked into a specific
# directory that contains a gemspec.
#
# This is used for gem dependency file support.
#
# Example:
#
# set = Gem::Resolver::VendorSet.new
#
# set.add_vendor_gem 'rake', 'vendor/rake'
#
# The directory vendor/rake must contain an unpacked rake gem along with a
# rake.gemspec (watching the given name).
class Gem::Resolver::VendorSet < Gem::Resolver::Set
def initialize # :nodoc:
@directories = {}
@specs = {}
end
##
# Adds a specification to the set with the given +name+ which has been
# unpacked into the given +directory+.
def add_vendor_gem name, directory # :nodoc:
gemspec = File.join directory, "#{name}.gemspec"
spec = Gem::Specification.load gemspec
raise Gem::GemNotFoundException,
"unable to find #{gemspec} for gem #{name}" unless spec
key = "#{spec.name}-#{spec.version}-#{spec.platform}"
@specs[key] = spec
@directories[spec] = directory
end
##
# Returns an Array of VendorSpecification objects matching the
# DependencyRequest +req+.
def find_all req
@specs.values.select do |spec|
req.matches_spec? spec
end.map do |spec|
source = Gem::Source::Vendor.new @directories[spec]
Gem::Resolver::VendorSpecification.new self, spec, source
end
end
##
# Loads a spec with the given +name+, +version+ and +platform+. Since the
# +source+ is defined when the specification was added to index it is not
# used.
def load_spec name, version, platform, source # :nodoc:
key = "#{name}-#{version}-#{platform}"
@specs.fetch key
end
end