45 lines
965 B
Ruby
45 lines
965 B
Ruby
require "requirement"
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class X11Dependency < Requirement
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include Comparable
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attr_reader :min_version
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fatal true
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env { ENV.x11 }
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def initialize(name="x11", tags=[])
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@name = name
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if /(\d\.)+\d/ === tags.first
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@min_version = Version.new(tags.shift)
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else
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@min_version = Version.new("0.0.0")
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end
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super(tags)
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end
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satisfy :build_env => false do
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MacOS::XQuartz.installed? && min_version <= Version.new(MacOS::XQuartz.version)
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end
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def message; <<-EOS.undent
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Unsatisfied dependency: XQuartz #{@min_version}
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Homebrew does not package XQuartz. Installers may be found at:
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https://xquartz.macosforge.org
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EOS
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end
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def <=> other
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return unless X11Dependency === other
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min_version <=> other.min_version
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end
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def eql?(other)
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super && min_version == other.min_version
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end
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def inspect
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"#<#{self.class.name}: #{name.inspect} #{tags.inspect} min_version=#{min_version}>"
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end
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end
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