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