Class: IO::Execution

Inherits:
Object show all
Defined in:
lib/git_topic/core_ext.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#error_callback ⇒ Object

Returns the value of attribute error_callback.



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# File 'lib/git_topic/core_ext.rb', line 125

def error_callback
  @error_callback
end

#output_callback ⇒ Object

Returns the value of attribute output_callback.



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# File 'lib/git_topic/core_ext.rb', line 125

def output_callback
  @output_callback
end

Instance Method Details

#on_error(&block) ⇒ Object 



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# File 'lib/git_topic/core_ext.rb', line 153

def on_error  &block
  self.error_callback = block
end

#on_output(&block) ⇒ Object 



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# File 'lib/git_topic/core_ext.rb', line 157

def on_output &block
  self.output_callback  = block
end

#run(*args, &block) ⇒ Object 



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# File 'lib/git_topic/core_ext.rb', line 127

def run  *args, &block
  self.output_callback  = proc{ }
  self.error_callback   = proc{ }

  # Let the block set up error, output hooks
  self.instance_eval &block

  Open3.popen3 *args do |pin, pout, perr, wait_thread|
    nothing_read = false
    until nothing_read do
      nothing_read = true
      if s = pout.gets
        self.output_callback[ s ]
        nothing_read = false
      end

      if s = perr.gets
        self.error_callback[ s ]
        nothing_read = false
      end
    end

    wait_thread.value
  end
end