Class: Shellfold::Command

Inherits:
Object
  • Object
show all
Includes:
MonitorMixin
Defined in:
lib/shellfold.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args, desc: nil, out: $stdout, last_output_max: 200, **kwargs) ⇒ Command

Returns a new instance of Command.



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# File 'lib/shellfold.rb', line 15

def initialize(*args, desc: nil,
                      out: $stdout,
                      last_output_max: 200, **kwargs)
  super()

  @out = out
  @last_output_max = last_output_max
  @command = Mixlib::ShellOut.new(*args, **kwargs)
  @desc = desc || command.command
  @running = false
end

Instance Attribute Details

#command ⇒ Object (readonly)

Returns the value of attribute command.



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# File 'lib/shellfold.rb', line 13

def command
  @command
end

#desc ⇒ Object (readonly)

Returns the value of attribute desc.



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# File 'lib/shellfold.rb', line 10

def desc
  @desc
end

#out ⇒ Object (readonly)

Returns the value of attribute out.



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# File 'lib/shellfold.rb', line 11

def out
  @out
end

#out_bar ⇒ Object (readonly)

Returns the value of attribute out_bar.



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# File 'lib/shellfold.rb', line 12

def out_bar
  @out_bar
end

Instance Method Details

#run(ignore_failure: true) ⇒ Object 



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# File 'lib/shellfold.rb', line 31

def run(ignore_failure: true)
  running!
  write_out{"#{desc}"}

  thr = Thread.new do
    loop do
      sleep 10
      break unless running?
      write_out{' '} if not @been_here.tap{@been_here = true}
      write_out{'.'}
    end
  end

  on_command_finish = proc do
    if not command.status.success?
      write_out{" [FAILED: #{command.status.inspect}]"}
      if ignore_failure
        write_out{"\n"}
      else
        msg = ["# COMMAND: #{command.command}\n",
               "# LAST OUTPUT BEGIN:\n",
               *[*command.stdout.lines,
                 *command.stderr.lines].reverse[0...@last_output_max].reverse,
               "# LAST OUTPUT END\n"].join
        write_out{"\n#{msg}"}
      end
    else
      write_out{" [DONE]\n"}
    end
  end

  begin
    command.run_command
    stopped!
    on_command_finish.call
  rescue Mixlib::ShellOut::CommandTimeout
    on_command_finish.call
  ensure
    thr.kill
  end

  command
end

#run! ⇒ Object 



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# File 'lib/shellfold.rb', line 27

def run!
  run(ignore_failure: false)
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/shellfold.rb', line 75

def running?
  synchronize{ @running }
end