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ðŸ“„ available_set.rb(1.56 KB)
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ðŸ“„ compatibility.rb(1.58 KB)
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ðŸ“ core_ext
ðŸ“„ defaults.rb(2.76 KB)
ðŸ“„ dependency.rb(7.74 KB)
ðŸ“„ dependency_installer.rb(12.36 KB)
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ðŸ“ ext
ðŸ“„ ext.rb(416 B)
ðŸ“„ gem_runner.rb(1.98 KB)
ðŸ“„ gemcutter_utilities.rb(2.84 KB)
ðŸ“„ indexer.rb(12.89 KB)
ðŸ“„ install_message.rb(281 B)
ðŸ“„ install_update_options.rb(5.09 KB)
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ðŸ“„ installer_test_case.rb(4.28 KB)
ðŸ“„ local_remote_options.rb(3.36 KB)
ðŸ“„ mock_gem_ui.rb(1.35 KB)
ðŸ“„ name_tuple.rb(1.96 KB)
ðŸ“ package
ðŸ“„ package.rb(13.22 KB)
ðŸ“„ package_task.rb(3.77 KB)
ðŸ“„ path_support.rb(1.58 KB)
ðŸ“„ platform.rb(5.63 KB)
ðŸ“„ psych_additions.rb(249 B)
ðŸ“„ psych_tree.rb(763 B)
ðŸ“„ rdoc.rb(7.75 KB)
ðŸ“„ remote_fetcher.rb(15.99 KB)
ðŸ“„ request_set.rb(3.67 KB)
ðŸ“„ requirement.rb(6.02 KB)
ðŸ“„ safe_yaml.rb(1.11 KB)
ðŸ“ security
ðŸ“„ security.rb(20.56 KB)
ðŸ“„ server.rb(21.69 KB)
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ðŸ“„ source_list.rb(1.22 KB)
ðŸ“„ source_local.rb(1.88 KB)
ðŸ“„ source_specific_file.rb(552 B)
ðŸ“„ spec_fetcher.rb(5.17 KB)
ðŸ“„ specification.rb(66.9 KB)
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ðŸ“„ syck_hack.rb(2.07 KB)
ðŸ“„ test_case.rb(28.09 KB)
ðŸ“„ test_utilities.rb(4.03 KB)
ðŸ“„ text.rb(1.23 KB)
ðŸ“„ uninstaller.rb(8.29 KB)
ðŸ“„ user_interaction.rb(11.44 KB)
ðŸ“„ validator.rb(4.08 KB)
ðŸ“„ version.rb(10.5 KB)
ðŸ“„ version_option.rb(1.59 KB)

Editing: dependency.rb

##
# The Dependency class holds a Gem name and a Gem::Requirement.

require "rubygems/requirement"

class Gem::Dependency

##
  # Valid dependency types.
  #--
  # When this list is updated, be sure to change
  # Gem::Specification::CURRENT_SPECIFICATION_VERSION as well.
  #
  # REFACTOR: This type of constant, TYPES, indicates we might want
  # two classes, used via inheritance or duck typing.

TYPES = [
    :development,
    :runtime,
  ]

##
  # Dependency name or regular expression.

attr_accessor :name

##
  # Allows you to force this dependency to be a prerelease.

attr_writer :prerelease

##
  # Constructs a dependency with +name+ and +requirements+. The last
  # argument can optionally be the dependency type, which defaults to
  # <tt>:runtime</tt>.

def initialize name, *requirements
    case name
    when String then # ok
    when Regexp then
      msg = ["NOTE: Dependency.new w/ a regexp is deprecated.",
             "Dependency.new called from #{Gem.location_of_caller.join(":")}"]
      warn msg.join("\n") unless Gem::Deprecate.skip
    else
      raise ArgumentError,
            "dependency name must be a String, was #{name.inspect}"
    end

type         = Symbol === requirements.last ? requirements.pop : :runtime
    requirements = requirements.first if 1 == requirements.length # unpack

unless TYPES.include? type
      raise ArgumentError, "Valid types are #{TYPES.inspect}, " +
                           "not #{type.inspect}"
    end

@name        = name
    @requirement = Gem::Requirement.create requirements
    @type        = type
    @prerelease  = false

# This is for Marshal backwards compatibility. See the comments in
    # +requirement+ for the dirty details.

@version_requirements = @requirement
  end

##
  # A dependency's hash is the XOR of the hashes of +name+, +type+,
  # and +requirement+.

def hash # :nodoc:
    name.hash ^ type.hash ^ requirement.hash
  end

def inspect # :nodoc:
    if @prerelease
      "<%s type=%p name=%p requirements=%p prerelease=ok>" %
        [self.class, self.type, self.name, requirement.to_s]
    else
      "<%s type=%p name=%p requirements=%p>" %
        [self.class, self.type, self.name, requirement.to_s]
    end
  end

##
  # Does this dependency require a prerelease?

def prerelease?
    @prerelease || requirement.prerelease?
  end

##
  # Is this dependency simply asking for the latest version
  # of a gem?

def latest_version?
    @requirement.none?
  end

def pretty_print q # :nodoc:
    q.group 1, 'Gem::Dependency.new(', ')' do
      q.pp name
      q.text ','
      q.breakable

q.pp requirement

q.text ','
      q.breakable

q.pp type
    end
  end

##
  # What does this dependency require?

def requirement
    return @requirement if defined?(@requirement) and @requirement

# @version_requirements and @version_requirement are legacy ivar
    # names, and supported here because older gems need to keep
    # working and Dependency doesn't implement marshal_dump and
    # marshal_load. In a happier world, this would be an
    # attr_accessor. The horrifying instance_variable_get you see
    # below is also the legacy of some old restructurings.
    #
    # Note also that because of backwards compatibility (loading new
    # gems in an old RubyGems installation), we can't add explicit
    # marshaling to this class until we want to make a big
    # break. Maybe 2.0.
    #
    # Children, define explicit marshal and unmarshal behavior for
    # public classes. Marshal formats are part of your public API.

# REFACTOR: See above

if defined?(@version_requirement) && @version_requirement
      version = @version_requirement.instance_variable_get :@version
      @version_requirement  = nil
      @version_requirements = Gem::Requirement.new version
    end

@requirement = @version_requirements if defined?(@version_requirements)
  end

# DOC: this method needs documentation or :nodoc''d
  def requirements_list
    requirement.as_list
  end

def to_s # :nodoc:
    if type != :runtime then
      "#{name} (#{requirement}, #{type})"
    else
      "#{name} (#{requirement})"
    end
  end

##
  # Dependency type.

def type
    @type ||= :runtime
  end

def == other # :nodoc:
    Gem::Dependency === other &&
      self.name        == other.name &&
      self.type        == other.type &&
      self.requirement == other.requirement
  end

##
  # Dependencies are ordered by name.

def <=> other
    self.name <=> other.name
  end

##
  # Uses this dependency as a pattern to compare to +other+. This
  # dependency will match if the name matches the other's name, and
  # other has only an equal version requirement that satisfies this
  # dependency.

def =~ other
    unless Gem::Dependency === other
      return unless other.respond_to?(:name) && other.respond_to?(:version)
      other = Gem::Dependency.new other.name, other.version
    end

return false unless name === other.name

reqs = other.requirement.requirements

return false unless reqs.length == 1
    return false unless reqs.first.first == '='

version = reqs.first.last

requirement.satisfied_by? version
  end

# DOC: this method needs either documented or :nodoc'd

def match? obj, version=nil
    if !version
      name = obj.name
      version = obj.version
    else
      name = obj
    end

return false unless self.name === name
    return true if requirement.none?

requirement.satisfied_by? Gem::Version.new(version)
  end

# DOC: this method needs either documented or :nodoc'd

def matches_spec? spec
    return false unless name === spec.name
    return true  if requirement.none?

requirement.satisfied_by?(spec.version)
  end

##
  # Merges the requirements of +other+ into this dependency

def merge other
    unless name == other.name then
      raise ArgumentError,
            "#{self} and #{other} have different names"
    end

default = Gem::Requirement.default
    self_req  = self.requirement
    other_req = other.requirement

return self.class.new name, self_req  if other_req == default
    return self.class.new name, other_req if self_req  == default

self.class.new name, self_req.as_list.concat(other_req.as_list)
  end

# DOC: this method needs either documented or :nodoc'd

def matching_specs platform_only = false
    matches = Gem::Specification.find_all { |spec|
      self.name === spec.name and # TODO: == instead of ===
        requirement.satisfied_by? spec.version
    }

if platform_only
      matches.reject! { |spec|
        not Gem::Platform.match spec.platform
      }
    end

matches = matches.sort_by { |s| s.sort_obj } # HACK: shouldn't be needed
  end

##
  # True if the dependency will not always match the latest version.

def specific?
    @requirement.specific?
  end

# DOC: this method needs either documented or :nodoc'd

def to_specs
    matches = matching_specs true

# TODO: check Gem.activated_spec[self.name] in case matches falls outside

if matches.empty? then
      specs = Gem::Specification.find_all { |s|
                s.name == name
              }.map { |x| x.full_name }

if specs.empty?
        total = Gem::Specification.to_a.size
        error = Gem::LoadError.new \
          "Could not find '#{name}' (#{requirement}) among #{total} total gem(s)"
      else
        error = Gem::LoadError.new \
          "Could not find '#{name}' (#{requirement}) - did find: [#{specs.join ','}]"
      end
      error.name        = self.name
      error.requirement = self.requirement
      raise error
    end

# TODO: any other resolver validations should go here

matches
  end

# DOC: this method needs either documented or :nodoc'd

def to_spec
    matches = self.to_specs

matches.find { |spec| spec.activated? } or matches.last
  end
end

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