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ðŸ“„ builder.rb(2.21 KB)
ðŸ“„ command.rb(12.46 KB)
ðŸ“„ command_manager.rb(4.67 KB)
ðŸ“ commands
ðŸ“„ config_file.rb(9.69 KB)
ðŸ“„ custom_require.rb(1.83 KB)
ðŸ“„ defaults.rb(2.65 KB)
ðŸ“„ dependency.rb(6.43 KB)
ðŸ“„ dependency_installer.rb(9.94 KB)
ðŸ“„ dependency_list.rb(5.58 KB)
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ðŸ“„ errors.rb(793 B)
ðŸ“„ exceptions.rb(2.34 KB)
ðŸ“ ext
ðŸ“„ ext.rb(379 B)
ðŸ“„ format.rb(1.96 KB)
ðŸ“„ gem_openssl.rb(2.24 KB)
ðŸ“„ gem_path_searcher.rb(4.57 KB)
ðŸ“„ gem_runner.rb(2.38 KB)
ðŸ“„ gemcutter_utilities.rb(1.86 KB)
ðŸ“„ indexer.rb(16.85 KB)
ðŸ“„ install_update_options.rb(3.87 KB)
ðŸ“„ installer.rb(16.94 KB)
ðŸ“„ installer_test_case.rb(3.1 KB)
ðŸ“„ local_remote_options.rb(3.36 KB)
ðŸ“„ mock_gem_ui.rb(1.05 KB)
ðŸ“„ old_format.rb(3.69 KB)
ðŸ“ package
ðŸ“„ package.rb(2.15 KB)
ðŸ“„ package_task.rb(3.79 KB)
ðŸ“„ path_support.rb(1.5 KB)
ðŸ“„ platform.rb(5.55 KB)
ðŸ“„ psych_additions.rb(498 B)
ðŸ“„ psych_tree.rb(1.34 KB)
ðŸ“„ remote_fetcher.rb(13.5 KB)
ðŸ“„ require_paths_builder.rb(577 B)
ðŸ“„ requirement.rb(4.99 KB)
ðŸ“„ security.rb(28.83 KB)
ðŸ“„ server.rb(21.93 KB)
ðŸ“„ source_index.rb(11 KB)
ðŸ“„ spec_fetcher.rb(7.17 KB)
ðŸ“„ specification.rb(54.68 KB)
ðŸ“ ssl_certs
ðŸ“„ syck_hack.rb(3.96 KB)
ðŸ“„ test_case.rb(21.89 KB)
ðŸ“„ test_utilities.rb(3.47 KB)
ðŸ“„ text.rb(1.23 KB)
ðŸ“„ uninstaller.rb(6.77 KB)
ðŸ“„ user_interaction.rb(11.22 KB)
ðŸ“„ validator.rb(4.65 KB)
ðŸ“„ version.rb(10.18 KB)
ðŸ“„ version_option.rb(1.59 KB)

Editing: gem_path_searcher.rb

require "rubygems"
require "rubygems/deprecate"

##
# GemPathSearcher has the capability to find loadable files inside
# gems.  It generates data up front to speed up searches later.

class Gem::GemPathSearcher

##
  # Initialise the data we need to make searches later.

def initialize
    # We want a record of all the installed gemspecs, in the order we wish to
    # examine them.
    # TODO: remove this stupid method
    @gemspecs = init_gemspecs

# Map gem spec to glob of full require_path directories.  Preparing this
    # information may speed up searches later.
    @lib_dirs = {}

@gemspecs.each do |spec|
      @lib_dirs[spec.object_id] = lib_dirs_for spec
    end
  end

##
  # Look in all the installed gems until a matching +glob+ is found.
  # Return the _gemspec_ of the gem where it was found.  If no match
  # is found, return nil.
  #
  # The gems are searched in alphabetical order, and in reverse
  # version order.
  #
  # For example:
  #
  #   find('log4r')              # -> (log4r-1.1 spec)
  #   find('log4r.rb')           # -> (log4r-1.1 spec)
  #   find('rake/rdoctask')      # -> (rake-0.4.12 spec)
  #   find('foobarbaz')          # -> nil
  #
  # Matching paths can have various suffixes ('.rb', '.so', and
  # others), which may or may not already be attached to _file_.
  # This method doesn't care about the full filename that matches;
  # only that there is a match.

def find(glob)
    # HACK violation of encapsulation
    @gemspecs.find do |spec|
      # TODO: inverted responsibility
      matching_file? spec, glob
    end
  end

# Looks through the available gemspecs and finds the first
  # one that contains +file+ as a requirable file.

def find_spec_for_file(file)
    @gemspecs.find do |spec|
      return spec if spec.contains_requirable_file?(file)
    end
  end

def find_active(glob)
    # HACK violation of encapsulation
    @gemspecs.find do |spec|
      # TODO: inverted responsibility
      spec.loaded? and matching_file? spec, glob
    end
  end

##
  # Works like #find, but finds all gemspecs matching +glob+.

def find_all(glob)
    # HACK violation of encapsulation
    @gemspecs.select do |spec|
      # TODO: inverted responsibility
      matching_file? spec, glob
    end || []
  end

def find_in_unresolved(glob)
    # HACK violation
    specs = Gem.unresolved_deps.values.map { |dep|
      Gem.source_index.search dep, true
    }.flatten

specs.select do |spec|
      # TODO: inverted responsibility
      matching_file? spec, glob
    end || []
  end

def find_in_unresolved_tree glob
    # HACK violation
    # TODO: inverted responsibility
    specs = Gem.unresolved_deps.values.map { |dep|
      Gem.source_index.search dep, true
    }.flatten

specs.reverse_each do |spec|
      trails = matching_paths(spec, glob)
      next if trails.empty?
      return trails.map(&:reverse).sort.first.reverse
    end

[]
  end

##
  # Attempts to find a matching path using the require_paths of the given
  # +spec+.

def matching_file?(spec, path)
    not matching_files(spec, path).empty?
  end

def matching_paths(spec, path)
    trails = []

spec.traverse do |from_spec, dep, to_spec, trail|
      next unless to_spec.conflicts.empty?
      trails << trail unless matching_files(to_spec, path).empty?
    end

trails
  end

##
  # Returns files matching +path+ in +spec+.
  #--
  # Some of the intermediate results are cached in @lib_dirs for speed.

def matching_files(spec, path)
    return [] unless @lib_dirs[spec.object_id] # case no paths
    glob = File.join @lib_dirs[spec.object_id], "#{path}#{Gem.suffix_pattern}"
    Dir[glob].select { |f| File.file? f.untaint }
  end

##
  # Return a list of all installed gemspecs, sorted by alphabetical order and
  # in reverse version order.  (bar-2, bar-1, foo-2)

def init_gemspecs
    Gem::Specification.sort { |a, b|
      names = a.name <=> b.name
      next names if names.nonzero?
      b.version <=> a.version
    }
  end

##
  # Returns library directories glob for a gemspec.  For example,
  #   '/usr/local/lib/ruby/gems/1.8/gems/foobar-1.0/{lib,ext}'

def lib_dirs_for(spec)
    "#{spec.full_gem_path}/{#{spec.require_paths.join(',')}}" if
      spec.require_paths
  end

extend Gem::Deprecate

deprecate :initialize,              :none,  2011, 10
  deprecate :find,                    :none,  2011, 10
  deprecate :find_active,             :none,  2011, 10
  deprecate :find_all,                :none,  2011, 10
  deprecate :find_in_unresolved,      :none,  2011, 10
  deprecate :find_in_unresolved_tree, :none,  2011, 10
  deprecate :find_spec_for_file,      :none,  2011, 10
end

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Editing: gem_path_searcher.rb

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