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ruby--ruby/lib/bundler/gem_helpers.rb
David Rodríguez f4f681463f [rubygems/rubygems] Don't discard candidates matching ruby metadata
Do dependency filtering and materialization in one step. Before,
dependency filtering would not consider ruby metadata so it would
discard variants that end up not being materializable in the end.

https://github.com/rubygems/rubygems/commit/0c0d40d417

Co-authored-by: Ian Ker-Seymer <ian.kerseymer@shopify.com>
2022-08-02 16:10:18 +09:00

118 lines
4.2 KiB
Ruby

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