Module: Webgen::Utils::ExternalCommand

Defined in:

lib/webgen/utils/external_command.rb

Overview

This module provides methods for easily working with external commands.

Class Method Summary

• .ensure_available!(cmd, *args) ⇒ Object

  Raise an error if the given command is not available.

Class Method Details

.ensure_available!(cmd, *args) ⇒ Object

Raise an error if the given command is not available.

This just checks if the exit status is zero.

Raises:

• (Webgen::CommandNotFoundError)

# File 'lib/webgen/utils/external_command.rb', line 15

def self.ensure_available!(cmd, *args)
  status = systemu([cmd, *args], 'stdout' => '', 'stdin' => '')
  raise Webgen::CommandNotFoundError.new(cmd) if status.exitstatus != 0
end