Class: CMD

Inherits:
Hash
  • Object
show all
Defined in:
lib/cmd.rb,
lib/cmd_windows.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 9

def initialize(cmd, options=nil)
 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 20

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

Instance Method Details

#execute ⇒ Object 



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# File 'lib/cmd.rb', line 24

def execute
  if(self[:quiet])
 self[:echo_output] = false
 self[:echo_command] = false
  end
  
  puts self[:command] if(self[:echo_command] || self[:debug])
  system  
    
  if(self[:debug])
 puts "command: #{self[:command]}"
 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 = "Exit code: #{self[:exit_code]}"
 exception_text = "#{exception_text}\nError: '#{self[:error]}'"
 exception_text = "#{exception_text}\nOutput: '#{self[:output]}'"
 raise StandardError.new(exception_text) 
  end
end

#execute_as(username) ⇒ Object 



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# File 'lib/cmd_windows.rb', line 6

def execute_as(username)
  self[:command] = "runas /noprofile /savecred /user:#{username} \"#{self[:command]}\""
  wait_on_spawned_process(self) { self.execute }
end

#system ⇒ Object 



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# File 'lib/cmd.rb', line 48

def system
  begin
    output = ''
 error = ''  
 Thread.abort_on_exception = true
 mutex = Mutex.new
 
 Open3.popen3(self[:command]) do |stdin, stdout, stderr, wait_thr|
      self[:pid] = wait_thr.pid 
      {:output => stdout,:error => stderr}.each do |key, stream|
        Thread.new do         
    while wait_thr.alive? do
      if(!(char = stream.getc).nil?)
      case key
        when :output
          output << char
        when :error
          error << char
      end

      mutex.synchronize { putc char if(self[:echo_output]) }
      else
        sleep(0.1)
    end
       end
  end
end

wait_thr.join

   self[:output] = output unless(output.empty?)
   self[:error] = error unless(error.empty?)
self[:exit_code] = wait_thr.value.to_i
 end
  rescue Exception => e
 self[:error] = "#{self[:error]}\nException: #{e.to_s}"
 self[:exit_code]=1 unless(self[:exit_code].nil? || (self[:exit_code] == 0))
  rescue => e
 self[:error] = "#{self[:error]}\nException: #{e.to_s}"
 self[:exit_code]=1 unless(self[:exit_code].nil? || (self[:exit_code] == 0))
  end
end