Method check

bin/yarn-standalone.js:48429–48481

(patterns, lockfile, flags, workspaceLayout)

  }

  check(patterns, lockfile, flags, workspaceLayout) {
    var _this4 = this;

    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
      // check if patterns exist in lockfile
      const missingPatterns = patterns.filter(function (p) {
        return !lockfile[p] && (!workspaceLayout || !workspaceLayout.getManifestByPattern(p));
      });

      const loc = yield _this4._getIntegrityFileLocation();
      if (missingPatterns.length || !loc.exists) {
        return {
          integrityFileMissing: !loc.exists,
          missingPatterns
        };
      }

      const actual = yield _this4._generateIntegrityFile(lockfile, patterns, flags, workspaceLayout);

      const expected = yield _this4._getIntegrityFile(loc.locationPath);
      let integrityMatches = _this4._compareIntegrityFiles(actual, expected, flags.checkFiles, workspaceLayout);

      if (integrityMatches === 'OK') {
        invariant(expected, "The integrity shouldn't pass without integrity file");
        for (var _iterator11 = expected.modulesFolders, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
          var _ref12;

          if (_isArray11) {
            if (_i11 >= _iterator11.length) break;
            _ref12 = _iterator11[_i11++];
          } else {
            _i11 = _iterator11.next();
            if (_i11.done) break;
            _ref12 = _i11.value;
          }

          const modulesFolder = _ref12;

          if (!(yield (_fs || _load_fs()).exists(path.join(_this4.config.lockfileFolder, modulesFolder)))) {
            integrityMatches = 'MODULES_FOLDERS_MISSING';
          }
        }
      }

      return {
        integrityFileMissing: false,
        integrityMatches: integrityMatches === 'OK',
        integrityError: integrityMatches === 'OK' ? undefined : integrityMatches,
        missingPatterns,
        hardRefreshRequired: integrityMatches === 'SYSTEM_PARAMS_DONT_MATCH'
      };
    })();
  }

  /**
   * Get artifacts from integrity file if it exists.