Class: IscsiadmWrapper::Common

Inherits:
Object
  • Object
show all
Defined in:
lib/iscsiadm/common.rb

Class Method Summary collapse

Class Method Details

.callout(cmd, filter, debug = false) ⇒ Object

Invoke an external program, passing each line of returned output through our filter.

Yield each all matches per line in block or return an array of all matches on every line.



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# File 'lib/iscsiadm/common.rb', line 21

def callout(cmd, filter, debug=false) #:nodoc:
  puts "Executing `#{cmd}`" if debug

  ret = []
  External::cmd(cmd) do |line|
    match = parse(line, filter)
    match.each do |t|
      ret << t 
    end
    if defined? yield
      yield ret
      ret.clear
    end
  end

  ret
end

.parse(line, filter) ⇒ Object

Convert match data to array, dropping the match all. Returns an array of matches.



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# File 'lib/iscsiadm/common.rb', line 10

def parse(line, filter) #:nodoc:
  match = filter.match(line).to_a
  match.shift
  match
end