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Name	Size	Permission	Date
commands	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
core_ext	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
defaults	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
ext	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
gemcutter_utilities	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
optparse	[ DIR ]	drwxr-xr-x	2024-12-04 14:11
package	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
request	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
request_set	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
resolver	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
security	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
source	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
ssl_certs	[ DIR ]	drwxr-xr-x	2024-12-04 14:11
tsort	[ DIR ]	drwxr-xr-x	2024-12-04 14:11
util	[ DIR ]	drwxr-xr-x	2025-01-09 11:36
available_set.rb	3.01 KB	-rw-r--r--	2024-12-04 14:11
basic_specification.rb	7.65 KB	-rw-r--r--	2024-12-04 14:11
bundler_version_finder.rb	1.96 KB	-rw-r--r--	2024-12-04 14:11
command.rb	16.08 KB	-rw-r--r--	2024-12-04 14:11
command_manager.rb	5.59 KB	-rw-r--r--	2024-12-04 14:11
compatibility.rb	1 KB	-rw-r--r--	2024-12-04 14:11
config_file.rb	14.03 KB	-rw-r--r--	2024-12-04 14:11
defaults.rb	6.96 KB	-rw-r--r--	2024-12-04 14:11
dependency.rb	8.65 KB	-rw-r--r--	2024-12-04 14:11
dependency_installer.rb	10.02 KB	-rw-r--r--	2024-12-04 14:11
dependency_list.rb	5.54 KB	-rw-r--r--	2024-12-04 14:11
deprecate.rb	4.89 KB	-rw-r--r--	2024-12-04 14:11
doctor.rb	3.13 KB	-rw-r--r--	2024-12-04 14:11
errors.rb	4.53 KB	-rw-r--r--	2024-12-04 14:11
exceptions.rb	7.34 KB	-rw-r--r--	2024-12-04 14:11
ext.rb	498 B	-rw-r--r--	2024-12-04 14:11
gem_runner.rb	1.8 KB	-rw-r--r--	2024-12-04 14:11
gemcutter_utilities.rb	10.54 KB	-rw-r--r--	2024-12-04 14:11
indexer.rb	10.91 KB	-rw-r--r--	2024-12-04 14:11
install_default_message.rb	349 B	-rw-r--r--	2024-12-04 14:11
install_message.rb	323 B	-rw-r--r--	2024-12-04 14:11
install_update_options.rb	6.35 KB	-rw-r--r--	2024-12-04 14:11
installer.rb	27.23 KB	-rw-r--r--	2024-12-04 14:11
installer_uninstaller_utils.rb	773 B	-rw-r--r--	2024-12-04 14:11
local_remote_options.rb	3.56 KB	-rw-r--r--	2024-12-04 14:11
mock_gem_ui.rb	1.38 KB	-rw-r--r--	2024-12-04 14:11
name_tuple.rb	2.39 KB	-rw-r--r--	2024-12-04 14:11
openssl.rb	125 B	-rw-r--r--	2024-12-04 14:11
optparse.rb	72 B	-rw-r--r--	2024-12-04 14:11
package.rb	17.7 KB	-rw-r--r--	2024-12-04 14:11
package_task.rb	3.79 KB	-rw-r--r--	2024-12-04 14:11
path_support.rb	1.79 KB	-rw-r--r--	2024-12-04 14:11
platform.rb	7.48 KB	-rw-r--r--	2024-12-04 14:11
psych_tree.rb	795 B	-rw-r--r--	2024-12-04 14:11
query_utils.rb	8.5 KB	-rw-r--r--	2024-12-04 14:11
rdoc.rb	232 B	-rw-r--r--	2024-12-04 14:11
remote_fetcher.rb	9.2 KB	-rw-r--r--	2024-12-04 14:11
request.rb	8.6 KB	-rw-r--r--	2024-12-04 14:11
request_set.rb	11.31 KB	-rw-r--r--	2024-12-04 14:11
requirement.rb	6.89 KB	-rw-r--r--	2024-12-04 14:11
resolver.rb	9.64 KB	-rw-r--r--	2024-12-04 14:11
s3_uri_signer.rb	5.92 KB	-rw-r--r--	2024-12-04 14:11
safe_yaml.rb	1.54 KB	-rw-r--r--	2024-12-04 14:11
security.rb	21.95 KB	-rw-r--r--	2024-12-04 14:11
security_option.rb	1.06 KB	-rw-r--r--	2024-12-04 14:11
shellwords.rb	66 B	-rw-r--r--	2024-12-04 14:11
source.rb	5.58 KB	-rw-r--r--	2024-12-04 14:11
source_list.rb	2.41 KB	-rw-r--r--	2024-12-04 14:11
spec_fetcher.rb	6.36 KB	-rw-r--r--	2024-12-04 14:11
specification.rb	70.45 KB	-rw-r--r--	2024-12-04 14:11
specification_policy.rb	13.79 KB	-rw-r--r--	2024-12-04 14:11
stub_specification.rb	4.46 KB	-rw-r--r--	2024-12-04 14:11
text.rb	2.07 KB	-rw-r--r--	2024-12-04 14:11
tsort.rb	66 B	-rw-r--r--	2024-12-04 14:11
uninstaller.rb	10.2 KB	-rw-r--r--	2024-12-04 14:11
unknown_command_spell_checker.rb	411 B	-rw-r--r--	2024-12-04 14:11
update_suggestion.rb	2.26 KB	-rw-r--r--	2024-12-04 14:11
uri.rb	2.33 KB	-rw-r--r--	2024-12-04 14:11
uri_formatter.rb	781 B	-rw-r--r--	2024-12-04 14:11
user_interaction.rb	13.04 KB	-rw-r--r--	2024-12-04 14:11
util.rb	2.41 KB	-rw-r--r--	2024-12-04 14:11
validator.rb	3.66 KB	-rw-r--r--	2024-12-04 14:11
version.rb	12.57 KB	-rw-r--r--	2024-12-04 14:11
version_option.rb	2.21 KB	-rw-r--r--	2024-12-04 14:11

Rename

# 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 }

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

return [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("_-", "")
    max             = gem_name.size / 2
    names           = available_specs(type).first.values.flatten(1)

matches = names.map do |n|
      next unless n.match_platform?
      [n.name, 0] if n.name.downcase.tr("_-", "").include?(gem_name)
    end.compact

if matches.length < num_results
      matches += names.map do |n|
        next unless n.match_platform?
        distance = levenshtein_distance gem_name, n.name.downcase.tr("_-", "")
        next if distance >= max
        return [n.name] if distance == 0
        [n.name, distance]
      end.compact
    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|
      begin
        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
    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 {|tup| tup.name }
  rescue Gem::RemoteFetcher::FetchError
    raise unless gracefully_ignore
    []
  end
end