129 lines
3.1 KiB
JavaScript
129 lines
3.1 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true
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});
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exports.default = nodeModulesPaths;
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function path() {
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const data = _interopRequireWildcard(require('path'));
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path = function () {
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return data;
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};
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return data;
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}
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function _realpathNative() {
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const data = require('realpath-native');
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_realpathNative = function () {
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return data;
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};
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return data;
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}
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function _getRequireWildcardCache() {
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if (typeof WeakMap !== 'function') return null;
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var cache = new WeakMap();
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_getRequireWildcardCache = function () {
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return cache;
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};
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return cache;
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}
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function _interopRequireWildcard(obj) {
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if (obj && obj.__esModule) {
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return obj;
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}
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if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
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return {default: obj};
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}
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var cache = _getRequireWildcardCache();
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if (cache && cache.has(obj)) {
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return cache.get(obj);
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}
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var newObj = {};
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var hasPropertyDescriptor =
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Object.defineProperty && Object.getOwnPropertyDescriptor;
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for (var key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key)) {
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var desc = hasPropertyDescriptor
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? Object.getOwnPropertyDescriptor(obj, key)
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: null;
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if (desc && (desc.get || desc.set)) {
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Object.defineProperty(newObj, key, desc);
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} else {
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newObj[key] = obj[key];
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}
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}
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}
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newObj.default = obj;
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if (cache) {
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cache.set(obj, newObj);
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}
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return newObj;
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}
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/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* Adapted from: https://github.com/substack/node-resolve
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*/
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function nodeModulesPaths(basedir, options) {
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const modules =
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options && options.moduleDirectory
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? Array.from(options.moduleDirectory)
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: ['node_modules']; // ensure that `basedir` is an absolute path at this point,
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// resolving against the process' current working directory
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const basedirAbs = path().resolve(basedir);
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let prefix = '/';
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if (/^([A-Za-z]:)/.test(basedirAbs)) {
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prefix = '';
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} else if (/^\\\\/.test(basedirAbs)) {
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prefix = '\\\\';
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} // The node resolution algorithm (as implemented by NodeJS and TypeScript)
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// traverses parents of the physical path, not the symlinked path
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let physicalBasedir;
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try {
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physicalBasedir = (0, _realpathNative().sync)(basedirAbs);
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} catch (err) {
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// realpath can throw, e.g. on mapped drives
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physicalBasedir = basedirAbs;
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}
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const paths = [physicalBasedir];
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let parsed = path().parse(physicalBasedir);
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while (parsed.dir !== paths[paths.length - 1]) {
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paths.push(parsed.dir);
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parsed = path().parse(parsed.dir);
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}
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const dirs = paths
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.reduce(
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(dirs, aPath) =>
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dirs.concat(
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modules.map(moduleDir =>
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path().isAbsolute(moduleDir)
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? aPath === basedirAbs
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? moduleDir
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: ''
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: path().join(prefix, aPath, moduleDir)
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)
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),
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[]
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)
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.filter(dir => dir !== '');
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return options.paths ? dirs.concat(options.paths) : dirs;
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}
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