pauls-dat-api/dist/network.js

Library of functions that make working with dat / hyperdrive easier.

'use strict';function _asyncToGenerator(fn) {return function () {var gen = fn.apply(this, arguments);return new Promise(function (resolve, reject) {function step(key, arg) {try {var info = gen[key](arg);var value = info.value;} catch (error) {reject(error);return;}if (info.done) {resolve(value);} else {return Promise.resolve(value).then(function (value) {step("next", value);}, function (err) {step("throw", err);});}}return step("next");});};}var path = require('path');var _require =
require('beaker-error-constants'),NotFoundError = _require.NotFoundError;var _require2 =
require('./common'),maybe = _require2.maybe;var _require3 =
require('./lookup'),stat = _require3.stat;var _require4 =
require('./read'),readdir = _require4.readdir;

// download the given file(s)
function download(archive, name, cb) {
  return maybe(cb, _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee() {var entry, listing, promises;return regeneratorRuntime.wrap(function _callee$(_context) {while (1) {switch (_context.prev = _context.next) {case 0:_context.next = 2;return (

              stat(archive, name));case 2:entry = _context.sent;if (
            entry) {_context.next = 5;break;}throw (
              new NotFoundError(`The entry ${name} was not found in the archive.`));case 5:if (!



            entry.isDirectory()) {_context.next = 11;break;}_context.next = 8;return (
              readdir(archive, name));case 8:listing = _context.sent;
            promises = listing.map(function (subname) {return download(archive, path.join(name, subname));});return _context.abrupt('return',
            Promise.all(promises));case 11:if (!



            entry.isFile()) {_context.next = 15;break;}if (!(
            entry.downloaded === entry.blocks)) {_context.next = 14;break;}return _context.abrupt('return');case 14:return _context.abrupt('return',


            new Promise(function (resolve, reject) {
              archive.content.download({
                start: entry.offset,
                end: entry.offset + entry.blocks },
              function (err) {
                if (err) reject(err);else
                resolve();
              });
            }));case 15:case 'end':return _context.stop();}}}, _callee, this);})));


}

module.exports = { download };