Class: Kitchen::Driver::VMMUtils::StreamReader

Inherits:
Object
  • Object
show all
Defined in:
lib/kitchen/driver/vmm_utils.rb

Overview

for powershell stdout read

Instance Method Summary collapse

Constructor Details

#initialize(&block) ⇒ StreamReader

Returns a new instance of StreamReader.



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# File 'lib/kitchen/driver/vmm_utils.rb', line 57

def initialize(&block)
  @block = block
  @buffer = StringIO.new
  @buffer.sync = true if @buffer.respond_to?(:sync)
end

Instance Method Details

#<<(chunk) ⇒ Object 



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# File 'lib/kitchen/driver/vmm_utils.rb', line 63

def <<(chunk)
  overflow = ''

  @buffer.write(chunk)
  @buffer.rewind

  @buffer.each_line do |line|
    if line.match(/\r?\n/)
      @block.call(line.strip)
    else
      overflow = line
    end
  end

  @buffer.truncate(@buffer.rewind)
  @buffer.write(overflow)
end