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ðŸ“ ..
ðŸ“„ available_set.rb(3 KB)
ðŸ“„ basic_specification.rb(8.13 KB)
ðŸ“„ bundler_version_finder.rb(1.96 KB)
ðŸ“„ ci_detector.rb(3.71 KB)
ðŸ“„ command.rb(15.97 KB)
ðŸ“„ command_manager.rb(5.64 KB)
ðŸ“ commands
ðŸ“„ compatibility.rb(1022 B)
ðŸ“„ config_file.rb(16.31 KB)
ðŸ“ core_ext
ðŸ“ defaults
ðŸ“„ defaults.rb(7.38 KB)
ðŸ“„ dependency.rb(8.45 KB)
ðŸ“„ dependency_installer.rb(9.91 KB)
ðŸ“„ dependency_list.rb(5.55 KB)
ðŸ“„ deprecate.rb(5.04 KB)
ðŸ“„ doctor.rb(3.13 KB)
ðŸ“„ errors.rb(4.53 KB)
ðŸ“„ exceptions.rb(7.13 KB)
ðŸ“ ext
ðŸ“„ ext.rb(498 B)
ðŸ“„ gem_runner.rb(2.14 KB)
ðŸ“ gemcutter_utilities
ðŸ“„ gemcutter_utilities.rb(11.25 KB)
ðŸ“„ gemspec_helpers.rb(394 B)
ðŸ“„ install_default_message.rb(349 B)
ðŸ“„ install_message.rb(323 B)
ðŸ“„ install_update_options.rb(6.56 KB)
ðŸ“„ installer.rb(27.74 KB)
ðŸ“„ installer_uninstaller_utils.rb(771 B)
ðŸ“„ local_remote_options.rb(3.61 KB)
ðŸ“„ name_tuple.rb(2.38 KB)
ðŸ“„ openssl.rb(125 B)
ðŸ“ package
ðŸ“„ package.rb(18.83 KB)
ðŸ“„ package_task.rb(3.79 KB)
ðŸ“„ path_support.rb(1.77 KB)
ðŸ“„ platform.rb(8.41 KB)
ðŸ“„ psych_tree.rb(855 B)
ðŸ“„ query_utils.rb(8.5 KB)
ðŸ“„ rdoc.rb(607 B)
ðŸ“„ remote_fetcher.rb(9.38 KB)
ðŸ“ request
ðŸ“„ request.rb(8.7 KB)
ðŸ“ request_set
ðŸ“„ request_set.rb(11.29 KB)
ðŸ“„ requirement.rb(7.08 KB)
ðŸ“ resolver
ðŸ“„ resolver.rb(9.43 KB)
ðŸ“„ s3_uri_signer.rb(5.96 KB)
ðŸ“ safe_marshal
ðŸ“„ safe_marshal.rb(1.92 KB)
ðŸ“„ safe_yaml.rb(1.04 KB)
ðŸ“ security
ðŸ“„ security.rb(21.69 KB)
ðŸ“„ security_option.rb(1.06 KB)
ðŸ“„ shellwords.rb(66 B)
ðŸ“ source
ðŸ“„ source.rb(5.78 KB)
ðŸ“„ source_list.rb(2.42 KB)
ðŸ“„ spec_fetcher.rb(7.68 KB)
ðŸ“„ specification.rb(69.02 KB)
ðŸ“„ specification_policy.rb(15.59 KB)
ðŸ“„ specification_record.rb(5.21 KB)
ðŸ“ ssl_certs
ðŸ“„ stub_specification.rb(4.96 KB)
ðŸ“„ target_rbconfig.rb(1.24 KB)
ðŸ“„ text.rb(2.06 KB)
ðŸ“„ uninstaller.rb(10.92 KB)
ðŸ“„ unknown_command_spell_checker.rb(411 B)
ðŸ“„ update_suggestion.rb(1.85 KB)
ðŸ“„ uri.rb(2.38 KB)
ðŸ“„ uri_formatter.rb(784 B)
ðŸ“„ user_interaction.rb(13.1 KB)
ðŸ“ util
ðŸ“„ util.rb(2.46 KB)
ðŸ“„ validator.rb(3.63 KB)
ðŸ“ vendor
ðŸ“„ vendored_molinillo.rb(81 B)
ðŸ“„ vendored_net_http.rb(233 B)
ðŸ“„ vendored_optparse.rb(79 B)
ðŸ“„ vendored_securerandom.rb(87 B)
ðŸ“„ vendored_timeout.rb(228 B)
ðŸ“„ vendored_tsort.rb(73 B)
ðŸ“„ version.rb(13.01 KB)
ðŸ“„ version_option.rb(2.17 KB)
ðŸ“„ yaml_serializer.rb(2.42 KB)

Editing: spec_fetcher.rb

# frozen_string_literal: true

require_relative "remote_fetcher"
require_relative "user_interaction"
require_relative "errors"
require_relative "text"
require_relative "name_tuple"

##
# SpecFetcher handles metadata updates from remote gem repositories.

class Gem::SpecFetcher
  include Gem::UserInteraction
  include Gem::Text

##
  # Cache of latest specs

attr_reader :latest_specs # :nodoc:

##
  # Sources for this SpecFetcher

attr_reader :sources # :nodoc:

##
  # Cache of all released specs

attr_reader :specs # :nodoc:

##
  # Cache of prerelease specs

attr_reader :prerelease_specs # :nodoc:

@fetcher = nil

##
  # Default fetcher instance.  Use this instead of ::new to reduce object
  # allocation.

def self.fetcher
    @fetcher ||= new
  end

def self.fetcher=(fetcher) # :nodoc:
    @fetcher = fetcher
  end

##
  # Creates a new SpecFetcher.  Ordinarily you want to use the default fetcher
  # from Gem::SpecFetcher::fetcher which uses the Gem.sources.
  #
  # If you need to retrieve specifications from a different +source+, you can
  # send it as an argument.

def initialize(sources = nil)
    @sources = sources || Gem.sources

@update_cache =
      begin
        File.stat(Gem.user_home).uid == Process.uid
      rescue Errno::EACCES, Errno::ENOENT
        false
      end

@specs = {}
    @latest_specs = {}
    @prerelease_specs = {}

@caches = {
      latest: @latest_specs,
      prerelease: @prerelease_specs,
      released: @specs,
    }

@fetcher = Gem::RemoteFetcher.fetcher
  end

##
  #
  # Find and fetch gem name tuples that match +dependency+.
  #
  # If +matching_platform+ is false, gems for all platforms are returned.

def search_for_dependency(dependency, matching_platform=true)
    found = {}

rejected_specs = {}

list, errors = available_specs(dependency.identity)

list.each do |source, specs|
      if dependency.name.is_a?(String) && specs.respond_to?(:bsearch)
        start_index = (0...specs.length).bsearch {|i| specs[i].name >= dependency.name }
        end_index   = (0...specs.length).bsearch {|i| specs[i].name > dependency.name }
        specs = specs[start_index...end_index] if start_index && end_index
      end

found[source] = specs.select do |tup|
        if dependency.match?(tup)
          if matching_platform && !Gem::Platform.match_gem?(tup.platform, tup.name)
            pm = (
              rejected_specs[dependency] ||= \
                Gem::PlatformMismatch.new(tup.name, tup.version))
            pm.add_platform tup.platform
            false
          else
            true
          end
        end
      end
    end

errors += rejected_specs.values

tuples = []

found.each do |source, specs|
      specs.each do |s|
        tuples << [s, source]
      end
    end

tuples = tuples.sort_by {|x| x[0].version }

[tuples, errors]
  end

##
  # Return all gem name tuples who's names match +obj+

def detect(type=:complete)
    tuples = []

list, _ = available_specs(type)
    list.each do |source, specs|
      specs.each do |tup|
        if yield(tup)
          tuples << [tup, source]
        end
      end
    end

tuples
  end

##
  # Find and fetch specs that match +dependency+.
  #
  # If +matching_platform+ is false, gems for all platforms are returned.

def spec_for_dependency(dependency, matching_platform=true)
    tuples, errors = search_for_dependency(dependency, matching_platform)

specs = []
    tuples.each do |tup, source|
      spec = source.fetch_spec(tup)
    rescue Gem::RemoteFetcher::FetchError => e
      errors << Gem::SourceFetchProblem.new(source, e)
    else
      specs << [spec, source]
    end

[specs, errors]
  end

##
  # Suggests gems based on the supplied +gem_name+. Returns an array of
  # alternative gem names.

def suggest_gems_from_name(gem_name, type = :latest, num_results = 5)
    gem_name = gem_name.downcase.tr("_-", "")

# All results for 3-character-or-shorter (minus hyphens/underscores) gem
    # names get rejected, so we just return an empty array immediately instead.
    return [] if gem_name.length <= 3

max   = gem_name.size / 2
    names = available_specs(type).first.values.flatten(1)

min_length = gem_name.length - max
    max_length = gem_name.length + max

gem_name_with_postfix = "#{gem_name}ruby"
    gem_name_with_prefix = "ruby#{gem_name}"

matches = names.filter_map do |n|
      len = n.name.length
      # If the gem doesn't support the current platform, bail early.
      next unless n.match_platform?

# If the length is min_length or shorter, we've done `max` deletions.
      # This would be rejected later, so we skip it for performance.
      next if len <= min_length

# The candidate name, normalized the same as gem_name.
      normalized_name = n.name.downcase
      normalized_name.tr!("_-", "")

# If the gem is "{NAME}-ruby" and "ruby-{NAME}", we want to return it.
      # But we already removed hyphens, so we check "{NAME}ruby" and "ruby{NAME}".
      next [n.name, 0] if normalized_name == gem_name_with_postfix
      next [n.name, 0] if normalized_name == gem_name_with_prefix

# If the length is max_length or longer, we've done `max` insertions.
      # This would be rejected later, so we skip it for performance.
      next if len >= max_length

# If we found an exact match (after stripping underscores and hyphens),
      # that's our most likely candidate.
      # Return it immediately, and skip the rest of the loop.
      return [n.name] if normalized_name == gem_name

distance = levenshtein_distance gem_name, normalized_name

# Skip current candidate, if the edit distance is greater than allowed.
      next if distance >= max

# If all else fails, return the name and the calculated distance.
      [n.name, distance]
    end

matches = if matches.empty? && type != :prerelease
      suggest_gems_from_name gem_name, :prerelease
    else
      matches.uniq.sort_by {|_name, dist| dist }
    end

matches.map {|name, _dist| name }.uniq.first(num_results)
  end

##
  # Returns a list of gems available for each source in Gem::sources.
  #
  # +type+ can be one of 3 values:
  # :released   => Return the list of all released specs
  # :complete   => Return the list of all specs
  # :latest     => Return the list of only the highest version of each gem
  # :prerelease => Return the list of all prerelease only specs
  #

def available_specs(type)
    errors = []
    list = {}

@sources.each_source do |source|
      names = case type
              when :latest
                tuples_for source, :latest
              when :released
                tuples_for source, :released
              when :complete
                names =
                  tuples_for(source, :prerelease, true) +
                  tuples_for(source, :released)

names.sort
              when :abs_latest
                names =
                  tuples_for(source, :prerelease, true) +
                  tuples_for(source, :latest)

names.sort
              when :prerelease
                tuples_for(source, :prerelease)
              else
                raise Gem::Exception, "Unknown type - :#{type}"
      end
    rescue Gem::RemoteFetcher::FetchError => e
      errors << Gem::SourceFetchProblem.new(source, e)
    else
      list[source] = names
    end

[list, errors]
  end

##
  # Retrieves NameTuples from +source+ of the given +type+ (:prerelease,
  # etc.).  If +gracefully_ignore+ is true, errors are ignored.

def tuples_for(source, type, gracefully_ignore=false) # :nodoc:
    @caches[type][source.uri] ||=
      source.load_specs(type).sort_by(&:name)
  rescue Gem::RemoteFetcher::FetchError
    raise unless gracefully_ignore
    []
  end
end

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