Module: Bookbinder::ShellOut

Included in:
GitHubRepository
Defined in:
lib/bookbinder/shell_out.rb

Instance Method Summary collapse

Instance Method Details

#announce_failure(failure_okay, stderr, stdout) ⇒ Object 



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# File 'lib/bookbinder/shell_out.rb', line 13

def announce_failure(failure_okay, stderr, stdout)
  contents_of_stderr = stderr.read
  error_message = contents_of_stderr.empty? ? stdout.read : contents_of_stderr
  raise "\n#{error_message}" unless failure_okay
end

#shell_out(command, failure_okay = false) ⇒ Object 



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# File 'lib/bookbinder/shell_out.rb', line 5

def shell_out(command, failure_okay = false)
  Open3.popen3(command) do |input, stdout, stderr, wait_thr|
    command_failed = (wait_thr.value != 0)
    announce_failure(failure_okay, stderr, stdout) if command_failed
    stdout.read
  end
end