@ezs/basics/lib/file-load.js

Basics statements for EZS

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = FILELoad;
var _zlib = require("zlib");
var _fs = require("fs");
var _path = require("path");
var _os = require("os");
var _higherPath = _interopRequireDefault(require("higher-path"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
/**
 * Take `Object` containing filename et throw content by chunk
 *
 * ```json
 * [ fi1e1.csv, file2.csv ]
 * ```
 *
 * Script:
 *
 * ```ini
 * [use]
 * plugin = analytics
 * plugin = basics
 *
 * [FILELoad]
 * location = /tmp
 * [CSVParse]
 *
 * ```
 *
 * Output:
 *
 * ```json
 * [
 * (...)
 * ]
 * ```
 *
 * @name FILELoad
 * @param {String} [location=TMPDIR] Directory location
 * @param {Boolean} [compress=false] Enable gzip compression
 * @returns {Object}
 */
async function FILELoad(data, feed) {
  if (this.isLast()) {
    feed.close();
    return;
  }
  const compress = this.getParam('compress', false);
  const location = (0, _path.normalize)(this.getParam('location', '/'));
  const locations = [(0, _higherPath.default)((0, _os.tmpdir)(), location), (0, _higherPath.default)(process.cwd(), location)];
  const filename = locations.filter(Boolean).map(dir => (0, _path.resolve)(dir, String(data).trim())).filter(fil => (0, _fs.existsSync)(fil)).shift();
  if (!filename) {
    feed.stop(new Error('File location check failed.'));
    return;
  }
  (0, _fs.accessSync)((0, _path.dirname)(filename), _fs.constants.R_OK | _fs.constants.W_OK);
  (0, _fs.accessSync)(filename, _fs.constants.R_OK | _fs.constants.W_OK);
  const stream = compress ? (0, _fs.createReadStream)(filename).pipe((0, _zlib.createGunzip)()) : (0, _fs.createReadStream)(filename);
  await feed.flow(stream);
  return;
}