class Ogre::Runner

wrapper to assist aruba in single process execution

Public Class Methods

new(argv, stdin = STDIN, stdout = STDOUT, stderr = STDERR, kernel = Kernel) click to toggle source
# File lib/ogre/runner.rb, line 6
def initialize(argv, stdin = STDIN, stdout = STDOUT, stderr = STDERR, kernel = Kernel)
  @argv   = argv
  @stdin  = stdin
  @stdout = stdout
  @stderr = stderr
  @kernel = kernel
end

Public Instance Methods

execute!() click to toggle source
# File lib/ogre/runner.rb, line 14
def execute!
  exit_code = begin
    $stderr = @stderr
    $stdin = @stdin
    $stdout = @stdout

    Ogre::CLI.start(@argv)

    # Thor::Base#start does not have a return value
    # assume success if no exception is raised.
    0
  rescue StandardError => err
    # The ruby interpreter would pipe this to STDERR and
    # exit 1 in the case of an unhandled exception
    b = err.backtrace
    b.unshift("#{b.shift}: #{err.message} (#{err.class})")
    @stderr.puts(b.map { |s| "\tfrom #{s}" }.join("\n"))
    1
  ensure
    # put them back.
    $stderr = STDERR
    $stdin = STDIN
    $stdout = STDOUT
  end
  # Proxy exit code back to the injected kernel.
  @kernel.exit(exit_code)
end