Class: Nanoc::Extra::Piper Private

Inherits:
Object
  • Object
show all
Defined in:
lib/nanoc/extra/piper.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Defined Under Namespace

Classes: Error

Instance Method Summary collapse

Constructor Details

#initialize(stdout: $stdout, stderr: $stderr) ⇒ Piper

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Piper.

Parameters:

  • stdout (IO) (defaults to: $stdout)
  • stderr (IO) (defaults to: $stderr) 


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# File 'lib/nanoc/extra/piper.rb', line 19

def initialize(stdout: $stdout, stderr: $stderr)
  @stdout = stdout
  @stderr = stderr
end

Instance Method Details

#run(cmd, input) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parameters:



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# File 'lib/nanoc/extra/piper.rb', line 27

def run(cmd, input)
  Open3.popen3(*cmd) do |stdin, stdout, stderr, wait_thr|
    stdout_thread = Thread.new { @stdout << stdout.read }
    stderr_thread = Thread.new { @stderr << stderr.read }

    if input
      stdin << input
    end
    stdin.close

    stdout_thread.join
    stderr_thread.join

    exit_status = wait_thr.value
    unless exit_status.success?
      raise Error.new(cmd, exit_status.to_i)
    end
  end
end