118 lines
3.3 KiB
JavaScript
118 lines
3.3 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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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 _fs;
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function _load_fs() {
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return (_fs = _interopRequireDefault(require('fs')));
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}
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var _constants;
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function _load_constants() {
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return (_constants = require('./constants'));
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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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/**
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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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*
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*/
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const isFile = filePath =>
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(_fs || _load_fs()).default.existsSync(filePath) &&
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!(_fs || _load_fs()).default.lstatSync(filePath).isDirectory();
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exports.default = (pathToResolve, cwd) => {
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if (!(_path || _load_path()).default.isAbsolute(cwd)) {
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throw new Error(`"cwd" must be an absolute path. cwd: ${cwd}`);
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}
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const absolutePath = (_path || _load_path()).default.isAbsolute(pathToResolve)
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? pathToResolve
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: (_path || _load_path()).default.resolve(cwd, pathToResolve);
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if (isFile(absolutePath)) {
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return absolutePath;
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}
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// This is a guard against passing non existing path as a project/config,
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// that will otherwise result in a very confusing situation.
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// e.g.
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// With a directory structure like this:
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// my_project/
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// packcage.json
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//
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// Passing a `my_project/some_directory_that_doesnt_exist` as a project
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// name will resolve into a (possibly empty) `my_project/package.json` and
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// try to run all tests it finds under `my_project` directory.
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if (!(_fs || _load_fs()).default.existsSync(absolutePath)) {
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throw new Error(
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`Can't find a root directory while resolving a config file path.\n` +
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`Provided path to resolve: ${pathToResolve}\n` +
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`cwd: ${cwd}`
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);
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}
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return resolveConfigPathByTraversing(absolutePath, pathToResolve, cwd);
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};
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const resolveConfigPathByTraversing = (pathToResolve, initialPath, cwd) => {
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const jestConfig = (_path || _load_path()).default.resolve(
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pathToResolve,
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(_constants || _load_constants()).JEST_CONFIG
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);
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if (isFile(jestConfig)) {
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return jestConfig;
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}
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const packageJson = (_path || _load_path()).default.resolve(
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pathToResolve,
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(_constants || _load_constants()).PACKAGE_JSON
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);
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if (isFile(packageJson)) {
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return packageJson;
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}
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// This is the system root.
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// We tried everything, config is nowhere to be found ¯\_(ツ)_/¯
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if (
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pathToResolve === (_path || _load_path()).default.dirname(pathToResolve)
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) {
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throw new Error(makeResolutionErrorMessage(initialPath, cwd));
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}
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// go up a level and try it again
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return resolveConfigPathByTraversing(
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(_path || _load_path()).default.dirname(pathToResolve),
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initialPath,
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cwd
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);
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};
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const makeResolutionErrorMessage = (initialPath, cwd) =>
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'Could not find a config file based on provided values:\n' +
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`path: "${initialPath}"\n` +
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`cwd: "${cwd}"\n` +
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'Config paths must be specified by either a direct path to a config\n' +
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'file, or a path to a directory. If directory is given, Jest will try to\n' +
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`traverse directory tree up, until it finds either "${
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(_constants || _load_constants()).JEST_CONFIG
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}" or\n` +
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`"${(_constants || _load_constants()).PACKAGE_JSON}".`;
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