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commands	[ DIR ]	drwxr-xr-x
ext	[ DIR ]	drwxr-xr-x
package	[ DIR ]	drwxr-xr-x
ssl_certs	[ DIR ]	drwxr-xr-x
builder.rb	2.21 KB	-rw-r--r--
command.rb	12.46 KB	-rw-r--r--
command_manager.rb	4.67 KB	-rw-r--r--
config_file.rb	9.69 KB	-rw-r--r--
custom_require.rb	1.83 KB	-rw-r--r--
defaults.rb	2.65 KB	-rw-r--r--
dependency.rb	6.43 KB	-rw-r--r--
dependency_installer.rb	9.94 KB	-rw-r--r--
dependency_list.rb	5.58 KB	-rw-r--r--
deprecate.rb	1.81 KB	-rw-r--r--
doc_manager.rb	5.55 KB	-rw-r--r--
errors.rb	793 B	-rw-r--r--
exceptions.rb	2.34 KB	-rw-r--r--
ext.rb	379 B	-rw-r--r--
format.rb	1.96 KB	-rw-r--r--
gem_openssl.rb	2.24 KB	-rw-r--r--
gem_path_searcher.rb	4.57 KB	-rw-r--r--
gem_runner.rb	2.38 KB	-rw-r--r--
gemcutter_utilities.rb	1.86 KB	-rw-r--r--
indexer.rb	16.93 KB	-rw-r--r--
install_update_options.rb	3.87 KB	-rw-r--r--
installer.rb	17.02 KB	-rw-r--r--
installer_test_case.rb	3.1 KB	-rw-r--r--
local_remote_options.rb	3.36 KB	-rw-r--r--
mock_gem_ui.rb	1.05 KB	-rw-r--r--
old_format.rb	3.69 KB	-rw-r--r--
package.rb	2.15 KB	-rw-r--r--
package_task.rb	3.79 KB	-rw-r--r--
path_support.rb	1.5 KB	-rw-r--r--
platform.rb	5.55 KB	-rw-r--r--
psych_additions.rb	249 B	-rw-r--r--
psych_tree.rb	687 B	-rw-r--r--
remote_fetcher.rb	13.78 KB	-rw-r--r--
require_paths_builder.rb	577 B	-rw-r--r--
requirement.rb	5.01 KB	-rw-r--r--
security.rb	28.83 KB	-rw-r--r--
server.rb	21.93 KB	-rw-r--r--
source_index.rb	11 KB	-rw-r--r--
spec_fetcher.rb	7.17 KB	-rw-r--r--
specification.rb	54.83 KB	-rw-r--r--
syck_hack.rb	2.02 KB	-rw-r--r--
test_case.rb	23.22 KB	-rw-r--r--
test_utilities.rb	3.47 KB	-rw-r--r--
text.rb	1.23 KB	-rw-r--r--
uninstaller.rb	6.77 KB	-rw-r--r--
user_interaction.rb	11.22 KB	-rw-r--r--
validator.rb	4.65 KB	-rw-r--r--
version.rb	10.19 KB	-rw-r--r--
version_option.rb	1.59 KB	-rw-r--r--

Code Editor : spec_fetcher.rb

require 'rubygems/remote_fetcher'
require 'rubygems/user_interaction'
require 'rubygems/errors'
require 'rubygems/text'

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

class Gem::SpecFetcher

include Gem::UserInteraction
  include Gem::Text

FILES = {
    :all        => 'specs',
    :latest     => 'latest_specs',
    :prerelease => 'prerelease_specs',
  }

##
  # The SpecFetcher cache dir.

attr_reader :dir # :nodoc:

##
  # Cache of latest specs

attr_reader :latest_specs # :nodoc:

##
  # Cache of all released specs

attr_reader :specs # :nodoc:

##
  # Cache of prerelease specs

attr_reader :prerelease_specs # :nodoc:

@fetcher = nil

def self.fetcher
    @fetcher ||= new
  end

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

def initialize
    require 'fileutils'

@dir = File.join Gem.user_home, '.gem', 'specs'
    @update_cache = File.stat(Gem.user_home).uid == Process.uid

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

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

@fetcher = Gem::RemoteFetcher.fetcher
  end

##
  # Returns the local directory to write +uri+ to.

def cache_dir(uri)
    # Correct for windows paths
    escaped_path = uri.path.sub(/^\/([a-z]):\//i, '/\\1-/')
    File.join @dir, "#{uri.host}%#{uri.port}", File.dirname(escaped_path)
  end

##
  # Fetch specs matching +dependency+.  If +all+ is true, all matching
  # (released) versions are returned.  If +matching_platform+ is
  # false, all platforms are returned. If +prerelease+ is true,
  # prerelease versions are included.

def fetch_with_errors(dependency,
                        all               = false,
                        matching_platform = true,
                        prerelease        = false)

specs_and_sources, errors = find_matching_with_errors(dependency,
                                                          all,
                                                          matching_platform,
                                                          prerelease)

ss = specs_and_sources.map do |spec_tuple, source_uri|
      [fetch_spec(spec_tuple, URI.parse(source_uri)), source_uri]
    end

return [ss, errors]
  end

def fetch(*args)
    fetch_with_errors(*args).first
  end

def fetch_spec(spec, source_uri)
    source_uri = URI.parse source_uri if String === source_uri
    spec = spec - [nil, 'ruby', '']
    spec_file_name = "#{spec.join '-'}.gemspec"

uri = source_uri + "#{Gem::MARSHAL_SPEC_DIR}#{spec_file_name}"

cache_dir = cache_dir uri

local_spec = File.join cache_dir, spec_file_name

if File.exist? local_spec then
      spec = Gem.read_binary local_spec
    else
      uri.path << '.rz'

spec = @fetcher.fetch_path uri
      spec = Gem.inflate spec

if @update_cache then
        FileUtils.mkdir_p cache_dir

open local_spec, 'wb' do |io|
          io.write spec
        end
      end
    end

# TODO: Investigate setting Gem::Specification#loaded_from to a URI
    Marshal.load spec
  end

##
  # Find spec names that match +dependency+.  If +all+ is true, all
  # matching released versions are returned.  If +matching_platform+
  # is false, gems for all platforms are returned.

def find_matching_with_errors(dependency,
                                all               = false,
                                matching_platform = true,
                                prerelease        = false)
    found = {}

rejected_specs = {}

list(all, prerelease).each do |source_uri, specs|
      found[source_uri] = specs.select do |spec_name, version, spec_platform|
        if dependency.match?(spec_name, version)
          if matching_platform and !Gem::Platform.match(spec_platform)
            pm = (rejected_specs[dependency] ||= Gem::PlatformMismatch.new(spec_name, version))
            pm.add_platform spec_platform
            false
          else
            true
          end
        end
      end
    end

errors = rejected_specs.values

specs_and_sources = []

found.each do |source_uri, specs|
      uri_str = source_uri.to_s
      specs_and_sources.concat(specs.map { |spec| [spec, uri_str] })
    end

[specs_and_sources, errors]
  end

def find_matching(*args)
    find_matching_with_errors(*args).first
  end

##
  # Suggests a gem based on the supplied +gem_name+. Returns a string
  # of the gem name if an approximate match can be found or nil
  # otherwise. NOTE: for performance reasons only gems which exactly
  # match the first character of +gem_name+ are considered.

def suggest_gems_from_name gem_name
    gem_name        = gem_name.downcase
    max             = gem_name.size / 2
    specs           = list.values.flatten 1

matches = specs.map { |name, version, platform|
      next unless Gem::Platform.match platform

distance = levenshtein_distance gem_name, name.downcase

next if distance >= max

return [name] if distance == 0

[name, distance]
    }.compact

matches = matches.uniq.sort_by { |name, dist| dist }

matches.first(5).map { |name, dist| name }
  end

##
  # Returns a list of gems available for each source in Gem::sources.  If
  # +all+ is true, all released versions are returned instead of only latest
  # versions. If +prerelease+ is true, include prerelease versions.

def list(all = false, prerelease = false)
    # TODO: make type the only argument
    type = if all
             :all
           elsif prerelease
             :prerelease
           else
             :latest
           end

list  = {}
    file  = FILES[type]
    cache = @caches[type]

Gem.sources.each do |source_uri|
      source_uri = URI.parse source_uri

unless cache.include? source_uri
        cache[source_uri] = load_specs source_uri, file
      end

list[source_uri] = cache[source_uri]
    end

if type == :all
      list.values.map do |gems|
        gems.reject! { |g| !g[1] || g[1].prerelease? }
      end
    end

list
  end

##
  # Loads specs in +file+, fetching from +source_uri+ if the on-disk cache is
  # out of date.

def load_specs(source_uri, file)
    file_name  = "#{file}.#{Gem.marshal_version}"
    spec_path  = source_uri + "#{file_name}.gz"
    cache_dir  = cache_dir spec_path
    local_file = File.join(cache_dir, file_name)
    loaded     = false

if File.exist? local_file then
      begin
        spec_dump =
          @fetcher.fetch_path(spec_path, File.mtime(local_file))
      rescue Gem::RemoteFetcher::FetchError => e
        alert_warning "Error fetching data: #{e.message}"
      end

loaded = true if spec_dump

spec_dump ||= Gem.read_binary local_file
    else
      spec_dump = @fetcher.fetch_path spec_path
      loaded = true
    end

specs = begin
              Marshal.load spec_dump
            rescue ArgumentError
              spec_dump = @fetcher.fetch_path spec_path
              loaded = true

Marshal.load spec_dump
            end

if loaded and @update_cache then
      begin
        FileUtils.mkdir_p cache_dir

open local_file, 'wb' do |io|
          io << spec_dump
        end
      rescue
      end
    end

specs
  end

end

${this.title}

Code Editor : spec_fetcher.rb