Starts an independent process asynchronously with the given command. @param [Array] command The command to run. @param [Hash] options Options with which the process should be started.

> (see IO#popen) for more information on available options.¶ ↑

@return [Integer] The process ID of the started process. @raise (see Process#spawn) @raise (see Process#detach)

# File lib/process_runner.rb, line 11
def self.go(command, options={})
  dirname = File.dirname(command.first)
  options.merge!(:chdir => dirname) if options[:chdir].nil? && dirname && !dirname.empty?
  Process.detach(Process.spawn(*command, options)).pid
end