Class: Cisco::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/cisco_node_utils/cisco_cmn_utils.rb

Overview

General utility class

Class Method Summary collapse

Class Method Details

.delta_add_remove(should, current = [], opt = nil) ⇒ Object 



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# File 'lib/cisco_node_utils/cisco_cmn_utils.rb', line 119

def self.delta_add_remove(should, current=[], opt=nil)
  # Remove nil entries from array
  should.each(&:compact!) if depth(should) > 1
  delta = { add: should - current, remove: current - should }

  # Some cli properties cannot be updated, thus must be removed first
  return delta if opt == :updates_not_allowed

  # Delete entries from :remove if f1 is an update to an existing command
  delta[:add].each do |id, _|
    if depth(should) == 1
      delta[:remove].delete_if { |f1| [f1] if f1.to_s == id.to_s }
    else
      delta[:remove].delete_if { |f1, f2| [f1, f2] if f1.to_s == id.to_s }
    end
  end
  delta
end

.depth(a) ⇒ Object

Helper to build a hash of add/remove commands for a nested array. Useful for network, redistribute, etc.

 should: an array of expected cmds (manifest/recipe)
current: an array of existing cmds on the device



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# File 'lib/cisco_node_utils/cisco_cmn_utils.rb', line 114

def self.depth(a)
  return 0 unless a.is_a?(Array)
  1 + depth(a[0])
end

.process_network_mask(network) ⇒ Object

Helper utility method for ip/prefix format networks. For ip/prefix format ‘1.1.1.1/24’ or ‘2000:123:38::34/64’, we need to mask the address using the prefix length so that they are converted to ‘1.1.1.0/24’ or ‘2000:123:38::/64’



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# File 'lib/cisco_node_utils/cisco_cmn_utils.rb', line 103

def self.process_network_mask(network)
  mask = network.split('/')[1]
  address = IPAddr.new(network).to_s
  network = address + '/' + mask unless mask.nil?
  network
end

.zero_pad_macaddr(mac) ⇒ Object

Helper to 0-pad a mac address.



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# File 'lib/cisco_node_utils/cisco_cmn_utils.rb', line 139

def self.zero_pad_macaddr(mac)
  return nil if mac.nil? || mac.empty?
  o1, o2, o3 = mac.split('.').map { |o| o.to_i(16).to_s(10) }
  sprintf('%04x.%04x.%04x', o1, o2, o3)
end