# all files / lib/ files.js

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     'use strict';

    Object.defineProperty(exports, "__esModule", {
      value: true
    });
    exports.getRoot = getRoot;
    exports.findSubDirectories = findSubDirectories;
    exports.notSubDirectory = notSubDirectory;
    exports.isSubDirectory = isSubDirectory;
    exports.reducePaths = reducePaths;

    var _lodash = require('lodash');

    var _lodash2 = _interopRequireDefault(_lodash);

    var _path = require('path');

    var _path2 = _interopRequireDefault(_path);

    var _os = require('os');

    var _os2 = _interopRequireDefault(_os);

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

    function flatten(a, b) {
      return a.concat(b);
    }

    function hasParent(parent) {
      var root = getRoot(parent);
      return parent && parent !== root && parent !== '.';
    }

    function getParent(dir) {
      return _path2.default.dirname(dir);
    }

    function getRoot(dir) {
      return _os2.default.platform() === 'win32' ? dir.split(_path2.default.sep)[0] + _path2.default.sep : _path2.default.sep;
    }

    function getSubDirectories(base, allPaths) {
      return allPaths.filter(function (candidate) {
        return base !== candidate && isSubDirectory(base, candidate);
      });
    }

    function findSubDirectories(paths) {
      return paths.map(function (path) {
        return getSubDirectories(path, paths);
      }).reduce(flatten, []);
    }

    function notSubDirectory(subDirs) {
      return function (path) {
        return !_lodash2.default.includes(subDirs, path);
      };
    }

    function isSubDirectory(base, candidate) {
      var parent = candidate;
      while (hasParent(parent)) {
        if (base === parent) {
          return true;
        }
        parent = getParent(parent);
      }
      return false;
    }

    function reducePaths(searchPaths) {
      if (searchPaths.length === 1) {
        return searchPaths;
      }

      var subDirs = findSubDirectories(searchPaths.sort());
      return searchPaths.filter(notSubDirectory(subDirs));
    }