Function tar

src/common/command_utils.cpp:108–147

Future<Nothing> tar(
    const Path& input,
    const Path& output,
    const Option<Path>& directory,
    const Option<Compression>& compression)
{
  vector<string> argv = {
    "tar",
    "-c",  // Create archive.
    "-f",  // Output file.
    output
  };

  // Add additional flags.
  if (directory.isSome()) {
    argv.emplace_back("-C");
    argv.emplace_back(directory.get());
  }

  if (compression.isSome()) {
    switch (compression.get()) {
      case Compression::GZIP:
        argv.emplace_back("-z");
        break;
      case Compression::BZIP2:
        argv.emplace_back("-j");
        break;
      case Compression::XZ:
        argv.emplace_back("-J");
        break;
      default:
        UNREACHABLE();
    }
  }

  argv.emplace_back(input);

  return launch("tar", argv)
    .then([]() { return Nothing(); });
}


Future<Nothing> untar(