mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
110 lines
3.8 KiB
Ruby
110 lines
3.8 KiB
Ruby
# frozen_string_literal: true
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module Bundler
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module GemHelpers
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GENERIC_CACHE = { Gem::Platform::RUBY => Gem::Platform::RUBY } # rubocop:disable Style/MutableConstant
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GENERICS = [
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[Gem::Platform.new("java"), Gem::Platform.new("java")],
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[Gem::Platform.new("mswin32"), Gem::Platform.new("mswin32")],
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[Gem::Platform.new("mswin64"), Gem::Platform.new("mswin64")],
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[Gem::Platform.new("universal-mingw32"), Gem::Platform.new("universal-mingw32")],
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[Gem::Platform.new("x64-mingw32"), Gem::Platform.new("x64-mingw32")],
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[Gem::Platform.new("x86_64-mingw32"), Gem::Platform.new("x64-mingw32")],
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[Gem::Platform.new("mingw32"), Gem::Platform.new("x86-mingw32")],
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].freeze
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def generic(p)
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GENERIC_CACHE[p] ||= begin
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_, found = GENERICS.find do |match, _generic|
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p.os == match.os && (!match.cpu || p.cpu == match.cpu)
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end
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found || Gem::Platform::RUBY
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end
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end
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module_function :generic
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def generic_local_platform
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generic(local_platform)
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end
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module_function :generic_local_platform
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def local_platform
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Bundler.local_platform
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end
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module_function :local_platform
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def platform_specificity_match(spec_platform, user_platform)
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spec_platform = Gem::Platform.new(spec_platform)
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PlatformMatch.specificity_score(spec_platform, user_platform)
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end
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module_function :platform_specificity_match
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def select_best_platform_match(specs, platform)
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matching = specs.select {|spec| spec.match_platform(platform) }
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exact = matching.select {|spec| spec.platform == platform }
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return exact if exact.any?
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sorted_matching = matching.sort_by {|spec| platform_specificity_match(spec.platform, platform) }
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exemplary_spec = sorted_matching.first
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sorted_matching.take_while{|spec| same_specificity(platform, spec, exemplary_spec) && same_deps(spec, exemplary_spec) }
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end
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module_function :select_best_platform_match
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class PlatformMatch
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def self.specificity_score(spec_platform, user_platform)
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return -1 if spec_platform == user_platform
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return 1_000_000 if spec_platform.nil? || spec_platform == Gem::Platform::RUBY || user_platform == Gem::Platform::RUBY
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os_match(spec_platform, user_platform) +
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cpu_match(spec_platform, user_platform) * 10 +
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platform_version_match(spec_platform, user_platform) * 100
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end
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def self.os_match(spec_platform, user_platform)
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if spec_platform.os == user_platform.os
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0
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else
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1
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end
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end
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def self.cpu_match(spec_platform, user_platform)
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if spec_platform.cpu == user_platform.cpu
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0
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elsif spec_platform.cpu == "arm" && user_platform.cpu.to_s.start_with?("arm")
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0
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elsif spec_platform.cpu.nil? || spec_platform.cpu == "universal"
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1
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else
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2
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end
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end
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def self.platform_version_match(spec_platform, user_platform)
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if spec_platform.version == user_platform.version
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0
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elsif spec_platform.version.nil?
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1
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else
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2
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end
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end
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end
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def same_specificity(platform, spec, exemplary_spec)
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platform_specificity_match(spec.platform, platform) == platform_specificity_match(exemplary_spec.platform, platform)
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end
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module_function :same_specificity
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def same_deps(spec, exemplary_spec)
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same_runtime_deps = spec.dependencies.sort == exemplary_spec.dependencies.sort
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return same_runtime_deps unless spec.is_a?(Gem::Specification) && exemplary_spec.is_a?(Gem::Specification)
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same_metadata_deps = spec.required_ruby_version == exemplary_spec.required_ruby_version && spec.required_rubygems_version == exemplary_spec.required_rubygems_version
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same_runtime_deps && same_metadata_deps
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end
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module_function :same_deps
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end
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end
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