module Webgen::Utils::ExternalCommand

This module provides methods for easily working with external commands.

Public Class Methods

ensure_available!(cmd, *args) click to toggle source

Raise an error if the given command is not available.

This just checks if the exit status is zero.

# File lib/webgen/utils/external_command.rb, line 14
def self.ensure_available!(cmd, *args)
  status = systemu([cmd, *args], 'stdout' => '', 'stdin' => '')
  raise Webgen::CommandNotFoundError.new(cmd) if status.exitstatus != 0
end