text: // Copyright (c) 2019, Compiler Explorer Authors
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are met:
  //
  //     * Redistributions of source code must retain the above copyright notice,
  //       this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above copyright
  //       notice, this list of conditions and the following disclaimer in the
  //       documentation and/or other materials provided with the distribution.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  // POSSIBILITY OF SUCH DAMAGE.
  'use strict';
  
  const
      tarGzip = require('node-targz');
  
  class Packager {
      async package(directory, destination) {
          return await this.tarGzFiles(directory, destination);
      }
  
      unpack(packageFile, destination) {
          return new Promise((resolve, reject) => {
              tarGzip.decompress({
                  source: packageFile,
                  destination: destination,
              }, (err) => {
                  if (err) {
                      reject(err);
                  } else {
                      resolve(destination);
                  }
              });
          });
      }
  
      tarGzFiles(cwd, destination) {
          return new Promise((resolve, reject) => {
              tarGzip.compress({
                  source: cwd,
                  destination: destination,
                  level: 6,
                  memLevel: 6,
                  options: {
                      dereference: true,
                  },
              }, (err) => {
                  if (err) {
                      reject(err);
                  } else {
                      resolve(destination);
                  }
              });
          });
      }
  }
  
  module.exports = {
      Packager: Packager,
  };
  