brew/Library/Homebrew/os/mac/version.rb
2021-01-22 09:58:01 -08:00

117 lines
3.3 KiB
Ruby

# typed: true
# frozen_string_literal: true
require "exceptions"
require "hardware"
require "version"
module OS
module Mac
# A macOS version.
#
# @api private
class Version < ::Version
extend T::Sig
sig { returns(Symbol) }
attr_reader :arch
SYMBOLS = {
big_sur: "11",
catalina: "10.15",
mojave: "10.14",
high_sierra: "10.13",
sierra: "10.12",
el_capitan: "10.11",
yosemite: "10.10",
}.freeze
sig { params(sym: Symbol).returns(T.attached_class) }
def self.from_symbol(sym)
version, arch = version_arch(sym)
version ||= sym
str = SYMBOLS.fetch(version.to_sym) { raise MacOSVersionError, sym }
new(str, arch: arch)
end
sig { params(value: T.any(String, Symbol)).returns(T.any([], [String, T.nilable(String)])) }
def self.version_arch(value)
@all_archs_regex ||= begin
all_archs = Hardware::CPU::ALL_ARCHS.map(&:to_s)
/
^((?<prefix_arch>#{Regexp.union(all_archs)})_)?
(?<version>[\w.]+)
(-(?<suffix_arch>#{Regexp.union(all_archs)}))?$
/x
end
match = @all_archs_regex.match(value.to_s)
return [] unless match
version = match[:version]
arch = match[:prefix_arch] || match[:suffix_arch]
[version, arch]
end
sig { params(value: T.nilable(String), arch: T.nilable(String)).void }
def initialize(value, arch: nil)
version, arch = Version.version_arch(value) if value.present? && arch.nil?
version ||= value
arch ||= "intel"
raise MacOSVersionError, version unless /\A1\d+(?:\.\d+){0,2}\Z/.match?(version)
super(version)
@arch = arch.to_sym
@comparison_cache = {}
end
sig { override.params(other: T.untyped).returns(T.nilable(Integer)) }
def <=>(other)
@comparison_cache.fetch(other) do
if SYMBOLS.key?(other) && to_sym == other
0
else
v = SYMBOLS.fetch(other) { other.to_s }
@comparison_cache[other] = super(::Version.new(v))
end
end
end
sig { returns(Symbol) }
def to_sym
@to_sym ||= begin
# Big Sur is 11.x but Catalina is 10.15.
major_macos = if major >= 11
major
else
major_minor
end.to_s
SYMBOLS.invert.fetch(major_macos, :dunno)
end
end
sig { returns(String) }
def pretty_name
@pretty_name ||= to_sym.to_s.split("_").map(&:capitalize).join(" ").freeze
end
# For {OS::Mac::Version} compatibility.
sig { returns(T::Boolean) }
def requires_nehalem_cpu?
unless Hardware::CPU.intel?
raise "Unexpected architecture: #{Hardware::CPU.arch}. This only works with Intel architecture."
end
Hardware.oldest_cpu(self) == :nehalem
end
# https://en.wikipedia.org/wiki/Nehalem_(microarchitecture)
# Ensure any extra methods are also added to version/null.rb
alias requires_sse4? requires_nehalem_cpu?
alias requires_sse41? requires_nehalem_cpu?
alias requires_sse42? requires_nehalem_cpu?
alias requires_popcnt? requires_nehalem_cpu?
end
end
end