Module: PosixShort

Defined in:
lib/posix.rb,
lib/version.rb

Constant Summary collapse

NO_COMMAND_FOUND_MSG = 
'No %s tool found, please install it and retry.'
NO_COMMAND_FOUND_CODE = 
127
VERSION = 
'0.0.1'.freeze

Class Method Summary collapse

Class Method Details

.exec(*arguments) ⇒ Object

Usage: Posix.exec(‘commandlinetool’, argument_name_1, argument_value_1, …)



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# File 'lib/posix.rb', line 11

def self.exec(*arguments)
  result = POSIX::Spawn::Child.new(*arguments)
  if result.status.exitstatus == NO_COMMAND_FOUND_CODE
    raise(NO_COMMAND_FOUND_MSG % arguments.first)
  end

  error_text = result.err
  return result.out if error_text.empty?

  block_given? ? yield(result) : raise(error_text)
end