sicksync/dist/local/fs-helper.js

Don’t accept the available as the preferable. Go extra mile with extra speed.

'use strict';

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

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _fs = require('fs');

var _fs2 = _interopRequireDefault(_fs);

var _os = require('os');

var _os2 = _interopRequireDefault(_os);

var _chokidar = require('chokidar');

var _events = require('events');

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _untildify = require('untildify');

var _untildify2 = _interopRequireDefault(_untildify);

var _util = require('../util');

var util = _interopRequireWildcard(_util);

var _constants = require('../../conf/constants');

var _constants2 = _interopRequireDefault(_constants);

var _events2 = require('../../conf/events');

var _events3 = _interopRequireDefault(_events2);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

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

const fsEvents = _events3.default.FS.LOCAL;

class FSHelper extends _events.EventEmitter {
  constructor(params) {
    super();

    this._sourceLocation = (0, _untildify2.default)(params.sourceLocation);
    this._excludes = params.excludes || [];
    this._followSymLinks = params.followSymlinks || false;
    this._baseDir = _path2.default.parse(this._sourceLocation).base + '/';
    this._paused = true;

    // Node/watcher only work with full file-paths (no ~'s)
    this._watcher = (0, _chokidar.watch)(this._sourceLocation, {
      cwd: this._sourceLocation,
      ignored: this._excludes,
      persistent: true,
      followSymlinks: this._followSymlinks,
      ignoreInitial: true
    }).on('all', util.rebounce(this.onFileChange.bind(this), _lodash2.default.partial(this.emit, fsEvents.LARGE), _constants2.default.NUM_FILES_FOR_RSYNC, _constants2.default.FILE_CHANGE_COOLDOWN_MS));
  }

  onFileChange(evt, sourcepath) {
    if (_os2.default.platform() === 'win32') {
      sourcepath = sourcepath.replace(/\\/g, '/');
    }

    let fileContents = null;

    if (this._paused || util.isExcluded(sourcepath, this._excludes)) return;
    if (evt === 'add' || evt === 'change') fileContents = _fs2.default.readFileSync(sourcepath).toString();

    this.emit(fsEvents.CHANGE, {
      sourcepath: sourcepath,
      changeType: evt,
      contents: fileContents
    });
  }

  pauseWatch() {
    this._paused = true;
  }

  watch() {
    this._paused = false;
  }
}
exports.FSHelper = FSHelper;