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| 1 | +// @remove-on-eject-begin |
| 2 | +/** |
| 3 | + * Copyright (c) 2019-present, https://github.com/devloco |
| 4 | + * |
| 5 | + * This source code is licensed under the MIT license found in the |
| 6 | + * LICENSE file in the root directory of this source tree. |
| 7 | + */ |
| 8 | +// @remove-on-eject-end |
| 9 | +'use strict'; |
| 10 | + |
| 11 | +const fs = require('fs'); |
| 12 | +const path = require('path'); |
| 13 | +const paths = require('./paths-wptheme'); |
| 14 | +const chalk = require('react-dev-utils/chalk'); |
| 15 | +const resolve = require('resolve'); |
| 16 | + |
| 17 | +/** |
| 18 | + * Get additional module paths based on the baseUrl of a compilerOptions object. |
| 19 | + * |
| 20 | + * @param {Object} options |
| 21 | + */ |
| 22 | +function getAdditionalModulePaths(options = {}) { |
| 23 | + const baseUrl = options.baseUrl; |
| 24 | + |
| 25 | + // We need to explicitly check for null and undefined (and not a falsy value) because |
| 26 | + // TypeScript treats an empty string as `.`. |
| 27 | + if (baseUrl == null) { |
| 28 | + // If there's no baseUrl set we respect NODE_PATH |
| 29 | + // Note that NODE_PATH is deprecated and will be removed |
| 30 | + // in the next major release of create-react-app. |
| 31 | + |
| 32 | + const nodePath = process.env.NODE_PATH || ''; |
| 33 | + return nodePath.split(path.delimiter).filter(Boolean); |
| 34 | + } |
| 35 | + |
| 36 | + const baseUrlResolved = path.resolve(paths.appPath, baseUrl); |
| 37 | + |
| 38 | + // We don't need to do anything if `baseUrl` is set to `node_modules`. This is |
| 39 | + // the default behavior. |
| 40 | + if (path.relative(paths.appNodeModules, baseUrlResolved) === '') { |
| 41 | + return null; |
| 42 | + } |
| 43 | + |
| 44 | + // Allow the user set the `baseUrl` to `appSrc`. |
| 45 | + if (path.relative(paths.appSrc, baseUrlResolved) === '') { |
| 46 | + return [paths.appSrc]; |
| 47 | + } |
| 48 | + |
| 49 | + // If the path is equal to the root directory we ignore it here. |
| 50 | + // We don't want to allow importing from the root directly as source files are |
| 51 | + // not transpiled outside of `src`. We do allow importing them with the |
| 52 | + // absolute path (e.g. `src/Components/Button.js`) but we set that up with |
| 53 | + // an alias. |
| 54 | + if (path.relative(paths.appPath, baseUrlResolved) === '') { |
| 55 | + return null; |
| 56 | + } |
| 57 | + |
| 58 | + // Otherwise, throw an error. |
| 59 | + throw new Error( |
| 60 | + chalk.red.bold( |
| 61 | + "Your project's `baseUrl` can only be set to `src` or `node_modules`." + |
| 62 | + ' Create React App does not support other values at this time.' |
| 63 | + ) |
| 64 | + ); |
| 65 | +} |
| 66 | + |
| 67 | +/** |
| 68 | + * Get webpack aliases based on the baseUrl of a compilerOptions object. |
| 69 | + * |
| 70 | + * @param {*} options |
| 71 | + */ |
| 72 | +function getWebpackAliases(options = {}) { |
| 73 | + const baseUrl = options.baseUrl; |
| 74 | + |
| 75 | + if (!baseUrl) { |
| 76 | + return {}; |
| 77 | + } |
| 78 | + |
| 79 | + const baseUrlResolved = path.resolve(paths.appPath, baseUrl); |
| 80 | + |
| 81 | + if (path.relative(paths.appPath, baseUrlResolved) === '') { |
| 82 | + return { |
| 83 | + src: paths.appSrc, |
| 84 | + }; |
| 85 | + } |
| 86 | +} |
| 87 | + |
| 88 | +/** |
| 89 | + * Get jest aliases based on the baseUrl of a compilerOptions object. |
| 90 | + * |
| 91 | + * @param {*} options |
| 92 | + */ |
| 93 | +function getJestAliases(options = {}) { |
| 94 | + const baseUrl = options.baseUrl; |
| 95 | + |
| 96 | + if (!baseUrl) { |
| 97 | + return {}; |
| 98 | + } |
| 99 | + |
| 100 | + const baseUrlResolved = path.resolve(paths.appPath, baseUrl); |
| 101 | + |
| 102 | + if (path.relative(paths.appPath, baseUrlResolved) === '') { |
| 103 | + return { |
| 104 | + 'src/(.*)$': '<rootDir>/src/$1', |
| 105 | + }; |
| 106 | + } |
| 107 | +} |
| 108 | + |
| 109 | +function getModules() { |
| 110 | + // Check if TypeScript is setup |
| 111 | + const hasTsConfig = fs.existsSync(paths.appTsConfig); |
| 112 | + const hasJsConfig = fs.existsSync(paths.appJsConfig); |
| 113 | + |
| 114 | + if (hasTsConfig && hasJsConfig) { |
| 115 | + throw new Error( |
| 116 | + 'You have both a tsconfig.json and a jsconfig.json. If you are using TypeScript please remove your jsconfig.json file.' |
| 117 | + ); |
| 118 | + } |
| 119 | + |
| 120 | + let config; |
| 121 | + |
| 122 | + // If there's a tsconfig.json we assume it's a |
| 123 | + // TypeScript project and set up the config |
| 124 | + // based on tsconfig.json |
| 125 | + if (hasTsConfig) { |
| 126 | + const ts = require(resolve.sync('typescript', { |
| 127 | + basedir: paths.appNodeModules, |
| 128 | + })); |
| 129 | + config = ts.readConfigFile(paths.appTsConfig, ts.sys.readFile).config; |
| 130 | + // Otherwise we'll check if there is jsconfig.json |
| 131 | + // for non TS projects. |
| 132 | + } else if (hasJsConfig) { |
| 133 | + config = require(paths.appJsConfig); |
| 134 | + } |
| 135 | + |
| 136 | + config = config || {}; |
| 137 | + const options = config.compilerOptions || {}; |
| 138 | + |
| 139 | + const additionalModulePaths = getAdditionalModulePaths(options); |
| 140 | + |
| 141 | + return { |
| 142 | + additionalModulePaths: additionalModulePaths, |
| 143 | + webpackAliases: getWebpackAliases(options), |
| 144 | + jestAliases: getJestAliases(options), |
| 145 | + hasTsConfig, |
| 146 | + }; |
| 147 | +} |
| 148 | + |
| 149 | +module.exports = getModules(); |
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