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setup-python/node_modules/jest-resolve/build/defaultResolver.js

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2019-06-27 01:12:00 +00:00
'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.default = defaultResolver;
function _fs() {
const data = _interopRequireDefault(require('fs'));
_fs = function _fs() {
return data;
};
return data;
}
function _path() {
const data = _interopRequireDefault(require('path'));
_path = function _path() {
return data;
};
return data;
}
function _browserResolve() {
const data = _interopRequireDefault(require('browser-resolve'));
_browserResolve = function _browserResolve() {
return data;
};
return data;
}
function _jestPnpResolver() {
const data = _interopRequireDefault(require('jest-pnp-resolver'));
_jestPnpResolver = function _jestPnpResolver() {
return data;
};
return data;
}
var _isBuiltinModule = _interopRequireDefault(require('./isBuiltinModule'));
var _nodeModulesPaths = _interopRequireDefault(require('./nodeModulesPaths'));
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {default: obj};
}
/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
function defaultResolver(path, options) {
// @ts-ignore: the "pnp" version named isn't in DefinitelyTyped
if (process.versions.pnp) {
return (0, _jestPnpResolver().default)(path, options);
}
const resolve = options.browser
? _browserResolve().default.sync
: resolveSync;
return resolve(path, {
basedir: options.basedir,
defaultResolver,
extensions: options.extensions,
moduleDirectory: options.moduleDirectory,
paths: options.paths,
rootDir: options.rootDir
});
}
const REGEX_RELATIVE_IMPORT = /^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[\\\/])/;
function resolveSync(target, options) {
const basedir = options.basedir;
const extensions = options.extensions || ['.js'];
const paths = options.paths || [];
if (REGEX_RELATIVE_IMPORT.test(target)) {
// resolve relative import
const resolveTarget = _path().default.resolve(basedir, target);
const result = tryResolve(resolveTarget);
if (result) {
return result;
}
} else {
// otherwise search for node_modules
const dirs = (0, _nodeModulesPaths.default)(basedir, {
moduleDirectory: options.moduleDirectory,
paths
});
for (let i = 0; i < dirs.length; i++) {
const resolveTarget = _path().default.join(dirs[i], target);
const result = tryResolve(resolveTarget);
if (result) {
return result;
}
}
}
if ((0, _isBuiltinModule.default)(target)) {
return target;
}
const err = new Error(
"Cannot find module '" + target + "' from '" + basedir + "'"
);
err.code = 'MODULE_NOT_FOUND';
throw err;
/*
* contextual helper functions
*/
function tryResolve(name) {
const dir = _path().default.dirname(name);
let result;
if (isDirectory(dir)) {
result = resolveAsFile(name) || resolveAsDirectory(name);
}
if (result) {
// Dereference symlinks to ensure we don't create a separate
// module instance depending on how it was referenced.
result = _fs().default.realpathSync(result);
}
return result;
}
function resolveAsFile(name) {
if (isFile(name)) {
return name;
}
for (let i = 0; i < extensions.length; i++) {
const file = name + extensions[i];
if (isFile(file)) {
return file;
}
}
return undefined;
}
function resolveAsDirectory(name) {
if (!isDirectory(name)) {
return undefined;
}
const pkgfile = _path().default.join(name, 'package.json');
let pkgmain;
try {
const body = _fs().default.readFileSync(pkgfile, 'utf8');
pkgmain = JSON.parse(body).main;
} catch (e) {}
if (pkgmain && !isCurrentDirectory(pkgmain)) {
const resolveTarget = _path().default.resolve(name, pkgmain);
const result = tryResolve(resolveTarget);
if (result) {
return result;
}
}
return resolveAsFile(_path().default.join(name, 'index'));
}
}
var IPathType;
(function(IPathType) {
IPathType[(IPathType['FILE'] = 1)] = 'FILE';
IPathType[(IPathType['DIRECTORY'] = 2)] = 'DIRECTORY';
IPathType[(IPathType['OTHER'] = 3)] = 'OTHER';
})(IPathType || (IPathType = {}));
const checkedPaths = new Map();
function statSyncCached(path) {
const result = checkedPaths.get(path);
if (result !== undefined) {
return result;
}
let stat;
try {
stat = _fs().default.statSync(path);
} catch (e) {
if (!(e && (e.code === 'ENOENT' || e.code === 'ENOTDIR'))) {
throw e;
}
}
if (stat) {
if (stat.isFile() || stat.isFIFO()) {
checkedPaths.set(path, IPathType.FILE);
return IPathType.FILE;
} else if (stat.isDirectory()) {
checkedPaths.set(path, IPathType.DIRECTORY);
return IPathType.DIRECTORY;
}
}
checkedPaths.set(path, IPathType.OTHER);
return IPathType.OTHER;
}
/*
* helper functions
*/
function isFile(file) {
return statSyncCached(file) === IPathType.FILE;
}
function isDirectory(dir) {
return statSyncCached(dir) === IPathType.DIRECTORY;
}
const CURRENT_DIRECTORY = _path().default.resolve('.');
function isCurrentDirectory(testPath) {
return CURRENT_DIRECTORY === _path().default.resolve(testPath);
}