text: "use strict";
  
  module.exports = exports = _package;
  
  exports.usage = 'Packs binary (and enclosing directory) into locally staged tarball';
  
  var fs = require('fs');
  var path = require('path');
  var log = require('npmlog');
  var versioning = require('./util/versioning.js');
  var write = require('fs').createWriteStream;
  var existsAsync = fs.exists || path.exists;
  var mkdirp = require('mkdirp');
  
  function _package(gyp, argv, callback) {
      var pack = require('tar-pack').pack;
      var package_json = JSON.parse(fs.readFileSync('./package.json'));
      var opts = versioning.evaluate(package_json, gyp.opts);
      var from = opts.module_path;
      var binary_module = path.join(from,opts.module_name + '.node');
      existsAsync(binary_module,function(found) {
          if (!found) {
              return callback(new Error("Cannot package because " + binary_module + " missing: run `node-pre-gyp rebuild` first"));
          }
          var tarball = opts.staged_tarball;
          var filter_func = function(entry) {
              // ensure directories are +x
              // https://github.com/mapnik/node-mapnik/issues/262
              log.info('package','packing ' + entry.path);
              return true;
          };
          mkdirp(path.dirname(tarball),function(err) {
              if (err) throw err;
              pack(from, { filter: filter_func })
               .pipe(write(tarball))
               .on('error', function(err) {
                  if (err)  console.error('['+package_json.name+'] ' + err.message);
                  return callback(err);
               })
               .on('close', function() {
                  log.info('package','Binary staged at "' + tarball + '"');
                  return callback();
               });
          });
      });
  }
  