Vagrant 1.8.6 introduced bug in plugins/guests/linux/cap/network_interfaces.rb (comparison of Array with Array failed)

[TomaszUrugOlszewski]

Hello,

For some outputs generated by:
/sbin/ip -o -0 addr | grep -v LOOPBACK | awk '{print $2}' | sed 's/://'

Script produces an error:

/opt/vagrant/embedded/gems/gems/vagrant-1.8.6/plugins/guests/linux/cap/network_interfaces.rb:29:in `sort': comparison of Array with Array failed (ArgumentError)
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/plugins/guests/linux/cap/network_interfaces.rb:29:in `network_interfaces'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/capability_host.rb:111:in `call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/capability_host.rb:111:in `capability'

Here are example data sets, one which works (currently uncommented) and second one, which doesn't:

#ifaces = ["eth0", "eth1", "docker0", "veth437f7f9", "veth06b3e44", "veth8bb7081"]
ifaces = [ "eth0", "eth1", "docker0", "veth2cea1c9", "vethf058250", "veth1a8ff66" ]


ifaces = ifaces.map do |iface|
  iface.scan(/(.+?)(\d+)/).flatten.map do |iface_part|
    if iface_part.to_i.to_s == iface_part
      iface_part.to_i
    else
      iface_part
    end
  end
end.sort.map(&:join)

[chrisroberts]

@TomaszUrugOlszewski Thanks for providing the failing example. Tests have been updated and implementation reworked to properly handle it within #7866. Cheers!

[ghost]

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