update-react-native-app/Updater.js

Uses Github releases to update apk in React Native

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _reactNative = require('react-native');

var _reactNativeFs = require('react-native-fs');

var _reactNativeFs2 = _interopRequireDefault(_reactNativeFs);

var _semverMax = require('semver-max');

var _semverMax2 = _interopRequireDefault(_semverMax);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Updater = function Updater(options) {
  var _this = this;

  _classCallCheck(this, Updater);

  this.jobId = -1;
  this.releasesUri = 'https://api.github.com/repos/{ownerAndRepo}/releases';

  this.get = function (url, success, error) {
    fetch(url).then(function (response) {
      return response.json();
    }).then(success).catch(error);
  };

  this.getApkVersion = function () {
    if (_this.jobId !== -1) {
      return;
    }

    if (!_this.options.repo) {
      return;
    }

    _this.get(_this.releasesUri.replace('{ownerAndRepo}', _this.options.repo), _this.getApkVersionSuccess, _this.getVersionError);
  };

  this.getApkVersionSuccess = function (releases) {
    var latestRelease = releases.length > 0 ? releases[0] : null;
    var latestVersion = latestRelease.tag_name.replace('v', '');

    // Only if we have a latest release and it's higher then the current one
    if (latestRelease && (0, _semverMax2.default)(latestVersion, Updater.UpdateRNApp.versionName) !== Updater.UpdateRNApp.versionName) {
      var apkAsset = latestRelease.assets.find(function (asset) {
        return asset.browser_download_url.indexOf('.apk') > -1;
      });

      if (apkAsset) {
        _this.fire('onUpdateAvailable', latestRelease, function () {
          _this.downloadApk(apkAsset);
        });
      }
    }
  };

  this.downloadApk = function (apkAsset) {
    var progress = function progress(data) {
      var percentage = 100 * data.bytesWritten / data.contentLength | 0;

      _this.fire('onProgress', percentage);
    };

    var downloadDest = _reactNativeFs2.default.ExternalCachesDirectoryPath + '/' + apkAsset.name;

    var downloadFile = _reactNativeFs2.default.downloadFile({
      fromUrl: apkAsset.browser_download_url,
      toFile: downloadDest,
      begin: function begin(response) {
        return _this.fire('onDownloadStart');
      },
      progress: progress,
      background: true,
      progressDivider: 1
    });

    _this.jobId = downloadFile.jobId;

    downloadFile.promise.then(function (response) {
      _this.fire('onDownloadEnd');

      Updater.UpdateRNApp.installApk(downloadDest);

      _this.jobId = -1;
    }).catch(function (error) {
      _this.fire('onDownloadError', error);

      _this.jobId = -1;
    });
  };

  this.getVersionError = function (err) {};

  this.checkUpdate = function () {
    if (_reactNative.Platform.OS === 'android') {
      _this.getApkVersion();
    }
  };

  this.fire = function (func) {
    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    if (_this.options[func]) {
      _this.options[func].apply(null, args);
    }
  };

  this.options = options;
};

Updater.UpdateRNApp = _reactNative.NativeModules.UpdateRNApp;
exports.default = Updater;