lib/facter/architecture.rb


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# Fact: architecture
#
# Purpose:
#   Return the CPU hardware architecture.
# 
# Resolution:
#   On OpenBSD, Linux and Debian's kfreebsd, use the hardwaremodel fact.
#   Gentoo and Debian call "x86_86" "amd64".
#   Gentoo also calls "i386" "x86".
#
# Caveats:
#

Facter.add(:architecture) do
    confine :kernel => [:linux, :"gnu/kfreebsd"]
    setcode do
        model = Facter.value(:hardwaremodel)
        case model
        # most linuxen use "x86_64"
        when "x86_64"
            case Facter.value(:operatingsystem)
            when "Debian", "Gentoo", "GNU/kFreeBSD"
                "amd64"
            else
                model
            end
        when /(i[3456]86|pentium)/
            case Facter.value(:operatingsystem)
            when "Gentoo"
                "x86"
            else
                "i386"
            end
        else
            model
        end
    end
end

Facter.add(:architecture) do
    confine :kernel => :openbsd
    setcode do
        architecture = Facter.value(:hardwaremodel)
    end
end