28fa8a7c97
Add a new API inspired by discussion in https://github.com/Homebrew/homebrew-core/pull/36435 to query if a given CPU option is supported by a version of macOS.
55 lines
1.4 KiB
Ruby
55 lines
1.4 KiB
Ruby
require "version"
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module OS
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module Mac
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class Version < ::Version
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SYMBOLS = {
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mojave: "10.14",
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high_sierra: "10.13",
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sierra: "10.12",
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el_capitan: "10.11",
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yosemite: "10.10",
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mavericks: "10.9",
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}.freeze
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def self.from_symbol(sym)
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str = SYMBOLS.fetch(sym) do
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raise ArgumentError, "unknown version #{sym.inspect}"
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end
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new(str)
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end
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def initialize(*args)
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super
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@comparison_cache = {}
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end
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def <=>(other)
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@comparison_cache.fetch(other) do
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v = SYMBOLS.fetch(other) { other.to_s }
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@comparison_cache[other] = super(Version.new(v))
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end
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end
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def to_sym
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SYMBOLS.invert.fetch(@version) { :dunno }
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end
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def pretty_name
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to_sym.to_s.split("_").map(&:capitalize).join(" ")
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end
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# For OS::Mac::Version compatability
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def requires_nehalem_cpu?
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Hardware.oldest_cpu(self) == :nehalem
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end
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# https://en.wikipedia.org/wiki/Nehalem_(microarchitecture)
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# Ensure any extra methods are also added to version/null.rb
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alias requires_sse4? requires_nehalem_cpu?
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alias requires_sse41? requires_nehalem_cpu?
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alias requires_sse42? requires_nehalem_cpu?
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alias requires_popcnt? requires_nehalem_cpu?
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end
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end
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end
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