@samitouri / QOS-React-1
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main
main
js 136 lines 3.41 KB
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1 'use strict';
2
3 const fs = require('fs');
4 const path = require('path');
5 const paths = require('./paths');
6 const chalk = require('chalk');
7 const resolve = require('resolve');
8
9 /**
10 * Get additional module paths based on the baseUrl of a compilerOptions object.
11 *
12 * @param {Object} options
13 */
14 function getAdditionalModulePaths(options = {}) {
15 const baseUrl = options.baseUrl;
16
17 if (!baseUrl) {
18 return '';
19 }
20
21 const baseUrlResolved = path.resolve(paths.appPath, baseUrl);
22
23 // We don't need to do anything if `baseUrl` is set to `node_modules`. This is
24 // the default behavior.
25 if (path.relative(paths.appNodeModules, baseUrlResolved) === '') {
26 return null;
27 }
28
29 // Allow the user set the `baseUrl` to `appSrc`.
30 if (path.relative(paths.appSrc, baseUrlResolved) === '') {
31 return [paths.appSrc];
32 }
33
34 // If the path is equal to the root directory we ignore it here.
35 // We don't want to allow importing from the root directly as source files are
36 // not transpiled outside of `src`. We do allow importing them with the
37 // absolute path (e.g. `src/Components/Button.js`) but we set that up with
38 // an alias.
39 if (path.relative(paths.appPath, baseUrlResolved) === '') {
40 return null;
41 }
42
43 // Otherwise, throw an error.
44 throw new Error(
45 chalk.red.bold(
46 "Your project's `baseUrl` can only be set to `src` or `node_modules`." +
47 ' Create React App does not support other values at this time.'
48 )
49 );
50 }
51
52 /**
53 * Get webpack aliases based on the baseUrl of a compilerOptions object.
54 *
55 * @param {*} options
56 */
57 function getWebpackAliases(options = {}) {
58 const baseUrl = options.baseUrl;
59
60 if (!baseUrl) {
61 return {};
62 }
63
64 const baseUrlResolved = path.resolve(paths.appPath, baseUrl);
65
66 if (path.relative(paths.appPath, baseUrlResolved) === '') {
67 return {
68 src: paths.appSrc,
69 };
70 }
71 }
72
73 /**
74 * Get jest aliases based on the baseUrl of a compilerOptions object.
75 *
76 * @param {*} options
77 */
78 function getJestAliases(options = {}) {
79 const baseUrl = options.baseUrl;
80
81 if (!baseUrl) {
82 return {};
83 }
84
85 const baseUrlResolved = path.resolve(paths.appPath, baseUrl);
86
87 if (path.relative(paths.appPath, baseUrlResolved) === '') {
88 return {
89 '^src/(.*)$': '<rootDir>/src/$1',
90 };
91 }
92 }
93
94 function getModules() {
95 // Check if TypeScript is setup
96 const hasTsConfig = fs.existsSync(paths.appTsConfig);
97 const hasJsConfig = fs.existsSync(paths.appJsConfig);
98
99 if (hasTsConfig && hasJsConfig) {
100 throw new Error(
101 'You have both a tsconfig.json and a jsconfig.json. If you are using TypeScript please remove your jsconfig.json file.'
102 );
103 }
104
105 let config;
106
107 // If there's a tsconfig.json we assume it's a
108 // TypeScript project and set up the config
109 // based on tsconfig.json
110 if (hasTsConfig) {
111 const ts = require(
112 resolve.sync('typescript', {
113 basedir: paths.appNodeModules,
114 })
115 );
116 config = ts.readConfigFile(paths.appTsConfig, ts.sys.readFile).config;
117 // Otherwise we'll check if there is jsconfig.json
118 // for non TS projects.
119 } else if (hasJsConfig) {
120 config = require(paths.appJsConfig);
121 }
122
123 config = config || {};
124 const options = config.compilerOptions || {};
125
126 const additionalModulePaths = getAdditionalModulePaths(options);
127
128 return {
129 additionalModulePaths: additionalModulePaths,
130 webpackAliases: getWebpackAliases(options),
131 jestAliases: getJestAliases(options),
132 hasTsConfig,
133 };
134 }
135
136 module.exports = getModules();