mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
99 lines
3.2 KiB
Ruby
99 lines
3.2 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 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(Bundler.local_platform)
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end
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module_function :generic_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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return PlatformMatch::EXACT_MATCH if spec_platform == user_platform
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return PlatformMatch::WORST_MATCH if spec_platform.nil? || spec_platform == Gem::Platform::RUBY || user_platform == Gem::Platform::RUBY
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PlatformMatch.new(
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PlatformMatch.os_match(spec_platform, user_platform),
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PlatformMatch.cpu_match(spec_platform, user_platform),
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PlatformMatch.platform_version_match(spec_platform, user_platform)
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)
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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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specs.select {|spec| spec.match_platform(platform) }.
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min_by {|spec| platform_specificity_match(spec.platform, platform) }
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end
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module_function :select_best_platform_match
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PlatformMatch = Struct.new(:os_match, :cpu_match, :platform_version_match)
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class PlatformMatch
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def <=>(other)
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return nil unless other.is_a?(PlatformMatch)
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m = os_match <=> other.os_match
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return m unless m.zero?
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m = cpu_match <=> other.cpu_match
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return m unless m.zero?
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m = platform_version_match <=> other.platform_version_match
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m
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end
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EXACT_MATCH = new(-1, -1, -1).freeze
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WORST_MATCH = new(1_000_000, 1_000_000, 1_000_000).freeze
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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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end
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end
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