Module: Capture

Defined in:
lib/capture-output.rb

Class Method Summary collapse

Class Method Details

.output(out = STDOUT) ⇒ Object 



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# File 'lib/capture-output.rb', line 2

def self.output(out = STDOUT)
  r, w = IO.pipe
  old_out = out.clone
  out.reopen(w)
  data = ''

  t = Thread.new do
    data << r.read
  end

  begin
    yield
  ensure
    w.close
    out.reopen(old_out)
  end
  t.join
  data
end

.stderr(&block) ⇒ Object 



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# File 'lib/capture-output.rb', line 26

def self.stderr(&block)
  output(STDERR, &block)
end

.stdout(&block) ⇒ Object 



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# File 'lib/capture-output.rb', line 22

def self.stdout(&block)
  output(STDOUT, &block)
end