89 lines
2.3 KiB
JavaScript
89 lines
2.3 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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var _path;
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function _load_path() {
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return (_path = _interopRequireDefault(require('path')));
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}
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var _realpathNative;
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function _load_realpathNative() {
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return (_realpathNative = require('realpath-native'));
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}
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : {default: obj};
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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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? [].concat(options.moduleDirectory)
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: ['node_modules'];
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// 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 || _load_path()).default.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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}
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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 || _load_realpathNative()).sync)(
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basedirAbs
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);
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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 || _load_path()).default.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 || _load_path()).default.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(
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moduleDir =>
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(_path || _load_path()).default.isAbsolute(moduleDir)
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? aPath === basedirAbs
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? moduleDir
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: ''
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: (_path || _load_path()).default.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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/**
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* Copyright (c) 2014-present, Facebook, Inc. 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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*
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*/
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