diff options
Diffstat (limited to 'ruby_2_2/lib/rubygems/spec_fetcher.rb')
| -rw-r--r-- | ruby_2_2/lib/rubygems/spec_fetcher.rb | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/ruby_2_2/lib/rubygems/spec_fetcher.rb b/ruby_2_2/lib/rubygems/spec_fetcher.rb deleted file mode 100644 index 4967c4a40b..0000000000 --- a/ruby_2_2/lib/rubygems/spec_fetcher.rb +++ /dev/null @@ -1,269 +0,0 @@ -require 'rubygems/remote_fetcher' -require 'rubygems/user_interaction' -require 'rubygems/errors' -require 'rubygems/text' -require 'rubygems/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 = {} - - if dependency.prerelease? - if dependency.specific? - type = :complete - else - type = :abs_latest - end - elsif dependency.latest_version? - type = :latest - else - type = :released - end - - list, errors = available_specs(type) - 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 and !Gem::Platform.match(tup.platform) - 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] } - - 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 - gem_name = gem_name.downcase.tr('_-', '') - max = gem_name.size / 2 - names = available_specs(:latest).first.values.flatten(1) - - matches = names.map { |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] - }.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. - # - # +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 - |