Class: CMD

Inherits:
Hash
  • Object
show all
Defined in:
lib/cmd.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cmd, options = nil) ⇒ CMD

Returns a new instance of CMD.



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# File 'lib/cmd.rb', line 14

def initialize(cmd, options=nil)
 self.initialize_defaults if(@@default_options.nil?)
 self[:output] = ''
 self[:error] = ''
 
 @@default_options.each { |key, value| self[key] = value}
 options.each { |key, value| self[key] = value} unless(options.nil?)
 self[:command]=cmd
end

Class Method Details

.default_options(hash) ⇒ Object 



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# File 'lib/cmd.rb', line 25

def self.default_options(hash)
  self.initialize_defaults
  hash.each { |key, value| @@default_options[key] = value}
end

.initialize_defaults ⇒ Object 



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# File 'lib/cmd.rb', line 9

def self.initialize_defaults
  @@default_options = { echo_command: true, echo_output: true, ignore_exit_code: false, debug: false }
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/cmd.rb', line 30

def execute
  #begin

 puts self[:command] if(self[:echo_command])
  
 output = {output: [], error:  [] }
 Open3.popen3(self[:command]) do |stdin, stdout, stderr, wait_thr|
{:output => stdout,:error => stderr}.each do |key, stream|
  Thread.new do
  until(raw_line = stream.gets).nil? do
    output[key] << raw_line
    puts raw_line if(self[:echo_output])
  end
  end
end
wait_thr.join
   self[:output] = output[:output].join
   self[:error] = output[:error].join
self[:exit_code] = wait_thr.value.to_i
 end

  if(self[:debug])
 puts "command: #{self[:command]}" if(self[:quiet])
 puts "output: #{self[:output]}"
 puts "error: #{self[:error]}"
 puts "exit_code: #{self[:exit_code]}"
  end
  
  if((self[:exit_code] != 0) && !self[:ignore_exit_code])
 exception_text = self[:error]
 exception_text = self[:output] if(self[:error].empty?)
 raise exception_text 
  end
end