mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
76 lines
1.6 KiB
Ruby
76 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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##
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# The BestSet chooses the best available method to query a remote index.
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#
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# It combines IndexSet and APISet
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class Gem::Resolver::BestSet < Gem::Resolver::ComposedSet
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##
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# Creates a BestSet for the given +sources+ or Gem::sources if none are
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# specified. +sources+ must be a Gem::SourceList.
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def initialize(sources = Gem.sources)
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super()
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@sources = sources
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end
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##
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# Picks which sets to use for the configured sources.
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def pick_sets # :nodoc:
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@sources.each_source do |source|
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@sets << source.dependency_resolver_set
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end
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end
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def find_all(req) # :nodoc:
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pick_sets if @remote && @sets.empty?
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super
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rescue Gem::RemoteFetcher::FetchError => e
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replace_failed_api_set e
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retry
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end
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def prefetch(reqs) # :nodoc:
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pick_sets if @remote && @sets.empty?
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super
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end
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def pretty_print(q) # :nodoc:
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q.group 2, "[BestSet", "]" do
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q.breakable
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q.text "sets:"
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q.breakable
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q.pp @sets
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end
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end
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##
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# Replaces a failed APISet for the URI in +error+ with an IndexSet.
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#
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# If no matching APISet can be found the original +error+ is raised.
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#
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# The calling method must retry the exception to repeat the lookup.
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def replace_failed_api_set(error) # :nodoc:
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uri = error.original_uri
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uri = URI uri unless URI === uri
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uri = uri + "."
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raise error unless api_set = @sets.find do |set|
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Gem::Resolver::APISet === set && set.dep_uri == uri
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end
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index_set = Gem::Resolver::IndexSet.new api_set.source
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@sets.map! do |set|
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next set unless set == api_set
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index_set
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end
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end
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end
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