37 lines
821 B
Ruby
37 lines
821 B
Ruby
class PerlRequirement < Requirement
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fatal true
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default_formula "perl"
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def initialize(tags)
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@version = tags.shift if /^\d+\.\d+$/ =~ tags.first
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raise "PerlRequirement requires a version!" unless @version
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super
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end
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satisfy(build_env: false) do
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which_all("perl").detect do |perl|
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perl_version = Utils.popen_read(perl, "--version")[/v(\d+\.\d+)(?:\.\d+)?/, 1]
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next unless perl_version
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Version.create(perl_version.to_s) >= Version.create(@version)
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end
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end
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def message
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s = "Perl #{@version} is required to install this formula."
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s += super
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s
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end
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def inspect
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"#<#{self.class.name}: #{name.inspect} #{tags.inspect} version=#{@version.inspect}>"
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end
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def display_s
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if @version
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"#{name} >= #{@version}"
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else
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name
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end
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end
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end
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