1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.findConfigUpwards = findConfigUpwards;
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7 | exports.findRelativeConfig = findRelativeConfig;
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8 | exports.findRootConfig = findRootConfig;
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9 | exports.loadConfig = loadConfig;
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10 | exports.resolveShowConfigPath = resolveShowConfigPath;
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11 | exports.ROOT_CONFIG_FILENAMES = void 0;
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12 |
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13 | var _caching = require("../caching");
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14 |
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15 | var _configApi = require("../helpers/config-api");
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16 |
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17 | var _utils = require("./utils");
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18 |
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19 | var _moduleTypes = _interopRequireDefault(require("./module-types"));
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20 |
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21 | var _patternToRegex = _interopRequireDefault(require("../pattern-to-regex"));
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22 |
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23 | var fs = _interopRequireWildcard(require("../../gensync-utils/fs"));
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24 |
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25 | function _module() {
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26 | const data = require("module");
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27 |
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28 | _module = function () {
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29 | return data;
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30 | };
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31 |
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32 | return data;
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33 | }
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34 |
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35 | function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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36 |
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37 | function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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38 |
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39 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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40 |
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41 | const buildDebug = require("debug");
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42 |
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43 | const path = require("path");
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44 |
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45 | const json5 = require("json5");
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46 |
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47 | const gensync = require("gensync");
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48 |
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49 | const debug = buildDebug("babel:config:loading:files:configuration");
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50 | const ROOT_CONFIG_FILENAMES = ["babel.config.js", "babel.config.cjs", "babel.config.mjs", "babel.config.json"];
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51 | exports.ROOT_CONFIG_FILENAMES = ROOT_CONFIG_FILENAMES;
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52 | const RELATIVE_CONFIG_FILENAMES = [".babelrc", ".babelrc.js", ".babelrc.cjs", ".babelrc.mjs", ".babelrc.json"];
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53 | const BABELIGNORE_FILENAME = ".babelignore";
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54 |
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55 | function* findConfigUpwards(rootDir) {
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56 | let dirname = rootDir;
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57 |
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58 | while (true) {
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59 | for (const filename of ROOT_CONFIG_FILENAMES) {
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60 | if (yield* fs.exists(path.join(dirname, filename))) {
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61 | return dirname;
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62 | }
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63 | }
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64 |
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65 | const nextDir = path.dirname(dirname);
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66 | if (dirname === nextDir) break;
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67 | dirname = nextDir;
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68 | }
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69 |
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70 | return null;
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71 | }
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72 |
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73 | function* findRelativeConfig(packageData, envName, caller) {
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74 | let config = null;
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75 | let ignore = null;
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76 | const dirname = path.dirname(packageData.filepath);
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77 |
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78 | for (const loc of packageData.directories) {
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79 | if (!config) {
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80 | var _packageData$pkg;
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81 |
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82 | config = yield* loadOneConfig(RELATIVE_CONFIG_FILENAMES, loc, envName, caller, ((_packageData$pkg = packageData.pkg) == null ? void 0 : _packageData$pkg.dirname) === loc ? packageToBabelConfig(packageData.pkg) : null);
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83 | }
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84 |
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85 | if (!ignore) {
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86 | const ignoreLoc = path.join(loc, BABELIGNORE_FILENAME);
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87 | ignore = yield* readIgnoreConfig(ignoreLoc);
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88 |
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89 | if (ignore) {
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90 | debug("Found ignore %o from %o.", ignore.filepath, dirname);
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91 | }
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92 | }
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93 | }
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94 |
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95 | return {
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96 | config,
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97 | ignore
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98 | };
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99 | }
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100 |
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101 | function findRootConfig(dirname, envName, caller) {
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102 | return loadOneConfig(ROOT_CONFIG_FILENAMES, dirname, envName, caller);
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103 | }
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104 |
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105 | function* loadOneConfig(names, dirname, envName, caller, previousConfig = null) {
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106 | const configs = yield* gensync.all(names.map(filename => readConfig(path.join(dirname, filename), envName, caller)));
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107 | const config = configs.reduce((previousConfig, config) => {
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108 | if (config && previousConfig) {
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109 | throw new Error(`Multiple configuration files found. Please remove one:\n` + ` - ${path.basename(previousConfig.filepath)}\n` + ` - ${config.filepath}\n` + `from ${dirname}`);
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110 | }
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111 |
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112 | return config || previousConfig;
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113 | }, previousConfig);
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114 |
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115 | if (config) {
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116 | debug("Found configuration %o from %o.", config.filepath, dirname);
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117 | }
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118 |
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119 | return config;
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120 | }
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121 |
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122 | function* loadConfig(name, dirname, envName, caller) {
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123 | const filepath = (((v, w) => (v = v.split("."), w = w.split("."), +v[0] > +w[0] || v[0] == w[0] && +v[1] >= +w[1]))(process.versions.node, "8.9") ? require.resolve : (r, {
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124 | paths: [b]
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125 | }, M = require("module")) => {
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126 | let f = M._findPath(r, M._nodeModulePaths(b).concat(b));
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127 |
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128 | if (f) return f;
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129 | f = new Error(`Cannot resolve module '${r}'`);
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130 | f.code = "MODULE_NOT_FOUND";
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131 | throw f;
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132 | })(name, {
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133 | paths: [dirname]
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134 | });
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135 | const conf = yield* readConfig(filepath, envName, caller);
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136 |
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137 | if (!conf) {
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138 | throw new Error(`Config file ${filepath} contains no configuration data`);
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139 | }
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140 |
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141 | debug("Loaded config %o from %o.", name, dirname);
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142 | return conf;
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143 | }
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144 |
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145 | function readConfig(filepath, envName, caller) {
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146 | const ext = path.extname(filepath);
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147 | return ext === ".js" || ext === ".cjs" || ext === ".mjs" ? readConfigJS(filepath, {
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148 | envName,
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149 | caller
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150 | }) : readConfigJSON5(filepath);
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151 | }
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152 |
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153 | const LOADING_CONFIGS = new Set();
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154 | const readConfigJS = (0, _caching.makeStrongCache)(function* readConfigJS(filepath, cache) {
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155 | if (!fs.exists.sync(filepath)) {
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156 | cache.never();
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157 | return null;
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158 | }
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159 |
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160 | if (LOADING_CONFIGS.has(filepath)) {
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161 | cache.never();
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162 | debug("Auto-ignoring usage of config %o.", filepath);
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163 | return {
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164 | filepath,
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165 | dirname: path.dirname(filepath),
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166 | options: {}
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167 | };
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168 | }
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169 |
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170 | let options;
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171 |
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172 | try {
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173 | LOADING_CONFIGS.add(filepath);
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174 | options = yield* (0, _moduleTypes.default)(filepath, "You appear to be using a native ECMAScript module configuration " + "file, which is only supported when running Babel asynchronously.");
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175 | } catch (err) {
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176 | err.message = `${filepath}: Error while loading config - ${err.message}`;
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177 | throw err;
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178 | } finally {
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179 | LOADING_CONFIGS.delete(filepath);
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180 | }
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181 |
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182 | let assertCache = false;
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183 |
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184 | if (typeof options === "function") {
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185 | yield* [];
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186 | options = options((0, _configApi.makeConfigAPI)(cache));
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187 | assertCache = true;
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188 | }
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189 |
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190 | if (!options || typeof options !== "object" || Array.isArray(options)) {
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191 | throw new Error(`${filepath}: Configuration should be an exported JavaScript object.`);
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192 | }
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193 |
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194 | if (typeof options.then === "function") {
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195 | throw new Error(`You appear to be using an async configuration, ` + `which your current version of Babel does not support. ` + `We may add support for this in the future, ` + `but if you're on the most recent version of @babel/core and still ` + `seeing this error, then you'll need to synchronously return your config.`);
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196 | }
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197 |
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198 | if (assertCache && !cache.configured()) throwConfigError();
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199 | return {
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200 | filepath,
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201 | dirname: path.dirname(filepath),
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202 | options
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203 | };
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204 | });
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205 | const packageToBabelConfig = (0, _caching.makeWeakCacheSync)(file => {
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206 | const babel = file.options["babel"];
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207 | if (typeof babel === "undefined") return null;
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208 |
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209 | if (typeof babel !== "object" || Array.isArray(babel) || babel === null) {
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210 | throw new Error(`${file.filepath}: .babel property must be an object`);
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211 | }
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212 |
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213 | return {
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214 | filepath: file.filepath,
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215 | dirname: file.dirname,
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216 | options: babel
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217 | };
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218 | });
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219 | const readConfigJSON5 = (0, _utils.makeStaticFileCache)((filepath, content) => {
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220 | let options;
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221 |
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222 | try {
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223 | options = json5.parse(content);
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224 | } catch (err) {
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225 | err.message = `${filepath}: Error while parsing config - ${err.message}`;
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226 | throw err;
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227 | }
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228 |
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229 | if (!options) throw new Error(`${filepath}: No config detected`);
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230 |
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231 | if (typeof options !== "object") {
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232 | throw new Error(`${filepath}: Config returned typeof ${typeof options}`);
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233 | }
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234 |
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235 | if (Array.isArray(options)) {
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236 | throw new Error(`${filepath}: Expected config object but found array`);
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237 | }
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238 |
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239 | return {
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240 | filepath,
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241 | dirname: path.dirname(filepath),
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242 | options
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243 | };
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244 | });
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245 | const readIgnoreConfig = (0, _utils.makeStaticFileCache)((filepath, content) => {
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246 | const ignoreDir = path.dirname(filepath);
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247 | const ignorePatterns = content.split("\n").map(line => line.replace(/#(.*?)$/, "").trim()).filter(line => !!line);
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248 |
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249 | for (const pattern of ignorePatterns) {
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250 | if (pattern[0] === "!") {
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251 | throw new Error(`Negation of file paths is not supported.`);
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252 | }
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253 | }
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254 |
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255 | return {
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256 | filepath,
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257 | dirname: path.dirname(filepath),
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258 | ignore: ignorePatterns.map(pattern => (0, _patternToRegex.default)(pattern, ignoreDir))
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259 | };
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260 | });
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261 |
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262 | function* resolveShowConfigPath(dirname) {
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263 | const targetPath = process.env.BABEL_SHOW_CONFIG_FOR;
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264 |
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265 | if (targetPath != null) {
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266 | const absolutePath = path.resolve(dirname, targetPath);
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267 | const stats = yield* fs.stat(absolutePath);
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268 |
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269 | if (!stats.isFile()) {
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270 | throw new Error(`${absolutePath}: BABEL_SHOW_CONFIG_FOR must refer to a regular file, directories are not supported.`);
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271 | }
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272 |
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273 | return absolutePath;
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274 | }
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275 |
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276 | return null;
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277 | }
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278 |
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279 | function throwConfigError() {
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280 | throw new Error(`\
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281 | Caching was left unconfigured. Babel's plugins, presets, and .babelrc.js files can be configured
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282 | for various types of caching, using the first param of their handler functions:
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283 |
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284 | module.exports = function(api) {
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285 | // The API exposes the following:
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286 |
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287 | // Cache the returned value forever and don't call this function again.
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288 | api.cache(true);
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289 |
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290 | // Don't cache at all. Not recommended because it will be very slow.
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291 | api.cache(false);
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292 |
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293 | // Cached based on the value of some function. If this function returns a value different from
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294 | // a previously-encountered value, the plugins will re-evaluate.
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295 | var env = api.cache(() => process.env.NODE_ENV);
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296 |
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297 | // If testing for a specific env, we recommend specifics to avoid instantiating a plugin for
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298 | // any possible NODE_ENV value that might come up during plugin execution.
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299 | var isProd = api.cache(() => process.env.NODE_ENV === "production");
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300 |
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301 | // .cache(fn) will perform a linear search though instances to find the matching plugin based
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302 | // based on previous instantiated plugins. If you want to recreate the plugin and discard the
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303 | // previous instance whenever something changes, you may use:
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304 | var isProd = api.cache.invalidate(() => process.env.NODE_ENV === "production");
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305 |
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306 | // Note, we also expose the following more-verbose versions of the above examples:
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307 | api.cache.forever(); // api.cache(true)
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308 | api.cache.never(); // api.cache(false)
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309 | api.cache.using(fn); // api.cache(fn)
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310 |
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311 | // Return the value that will be cached.
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312 | return { };
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313 | };`);
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314 | } |
\ | No newline at end of file |