# frozen_string_literal: true ## # The BestSet chooses the best available method to query a remote index. # # It combines IndexSet and APISet class Gem::Resolver::BestSet < Gem::Resolver::ComposedSet ## # Creates a BestSet for the given +sources+ or Gem::sources if none are # specified. +sources+ must be a Gem::SourceList. def initialize(sources = Gem.sources) super() @sources = sources end ## # Picks which sets to use for the configured sources. def pick_sets # :nodoc: @sources.each_source do |source| @sets << source.dependency_resolver_set end end def find_all(req) # :nodoc: pick_sets if @remote and @sets.empty? super rescue Gem::RemoteFetcher::FetchError => e replace_failed_api_set e retry end def prefetch(reqs) # :nodoc: pick_sets if @remote and @sets.empty? super end def pretty_print(q) # :nodoc: q.group 2, '[BestSet', ']' do q.breakable q.text 'sets:' q.breakable q.pp @sets end end ## # Replaces a failed APISet for the URI in +error+ with an IndexSet. # # If no matching APISet can be found the original +error+ is raised. # # The calling method must retry the exception to repeat the lookup. def replace_failed_api_set(error) # :nodoc: uri = error.original_uri uri = URI uri unless URI === uri uri = uri + "." raise error unless api_set = @sets.find do |set| Gem::Resolver::APISet === set and set.dep_uri == uri end index_set = Gem::Resolver::IndexSet.new api_set.source @sets.map! do |set| next set unless set == api_set index_set end end end