"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.ROOT_CONFIG_FILENAMES = void 0;
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exports.findConfigUpwards = findConfigUpwards;
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exports.findRelativeConfig = findRelativeConfig;
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exports.findRootConfig = findRootConfig;
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exports.loadConfig = loadConfig;
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exports.resolveShowConfigPath = resolveShowConfigPath;
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function _debug() {
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const data = require("debug");
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_debug = function () {
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return data;
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};
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return data;
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}
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function _fs() {
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const data = require("fs");
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_fs = function () {
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return data;
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};
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return data;
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}
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function _path() {
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const data = require("path");
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_path = function () {
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return data;
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};
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return data;
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}
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function _json() {
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const data = require("json5");
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_json = function () {
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return data;
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};
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return data;
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}
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function _gensync() {
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const data = require("gensync");
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_gensync = function () {
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return data;
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};
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return data;
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}
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var _caching = require("../caching");
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var _configApi = require("../helpers/config-api");
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var _utils = require("./utils");
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var _moduleTypes = require("./module-types");
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var _patternToRegex = require("../pattern-to-regex");
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var fs = require("../../gensync-utils/fs");
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function _module() {
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const data = require("module");
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_module = function () {
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return data;
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};
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return data;
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}
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const debug = _debug()("babel:config:loading:files:configuration");
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const ROOT_CONFIG_FILENAMES = ["babel.config.js", "babel.config.cjs", "babel.config.mjs", "babel.config.json"];
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exports.ROOT_CONFIG_FILENAMES = ROOT_CONFIG_FILENAMES;
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const RELATIVE_CONFIG_FILENAMES = [".babelrc", ".babelrc.js", ".babelrc.cjs", ".babelrc.mjs", ".babelrc.json"];
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const BABELIGNORE_FILENAME = ".babelignore";
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function findConfigUpwards(rootDir) {
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let dirname = rootDir;
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for (;;) {
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for (const filename of ROOT_CONFIG_FILENAMES) {
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if (_fs().existsSync(_path().join(dirname, filename))) {
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return dirname;
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}
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}
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const nextDir = _path().dirname(dirname);
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if (dirname === nextDir) break;
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dirname = nextDir;
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}
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return null;
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}
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function* findRelativeConfig(packageData, envName, caller) {
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let config = null;
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let ignore = null;
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const dirname = _path().dirname(packageData.filepath);
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for (const loc of packageData.directories) {
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if (!config) {
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var _packageData$pkg;
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config = yield* loadOneConfig(RELATIVE_CONFIG_FILENAMES, loc, envName, caller, ((_packageData$pkg = packageData.pkg) == null ? void 0 : _packageData$pkg.dirname) === loc ? packageToBabelConfig(packageData.pkg) : null);
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}
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if (!ignore) {
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const ignoreLoc = _path().join(loc, BABELIGNORE_FILENAME);
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ignore = yield* readIgnoreConfig(ignoreLoc);
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if (ignore) {
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debug("Found ignore %o from %o.", ignore.filepath, dirname);
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}
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}
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}
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return {
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config,
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ignore
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};
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}
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function findRootConfig(dirname, envName, caller) {
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return loadOneConfig(ROOT_CONFIG_FILENAMES, dirname, envName, caller);
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}
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function* loadOneConfig(names, dirname, envName, caller, previousConfig = null) {
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const configs = yield* _gensync().all(names.map(filename => readConfig(_path().join(dirname, filename), envName, caller)));
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const config = configs.reduce((previousConfig, config) => {
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if (config && previousConfig) {
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throw new Error(`Multiple configuration files found. Please remove one:\n` + ` - ${_path().basename(previousConfig.filepath)}\n` + ` - ${config.filepath}\n` + `from ${dirname}`);
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}
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return config || previousConfig;
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}, previousConfig);
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if (config) {
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debug("Found configuration %o from %o.", config.filepath, dirname);
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}
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return config;
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}
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function* loadConfig(name, dirname, envName, caller) {
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const filepath = (((v, w) => (v = v.split("."), w = w.split("."), +v[0] > +w[0] || v[0] == w[0] && +v[1] >= +w[1]))(process.versions.node, "8.9") ? require.resolve : (r, {
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paths: [b]
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}, M = require("module")) => {
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let f = M._findPath(r, M._nodeModulePaths(b).concat(b));
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if (f) return f;
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f = new Error(`Cannot resolve module '${r}'`);
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f.code = "MODULE_NOT_FOUND";
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throw f;
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})(name, {
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paths: [dirname]
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});
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const conf = yield* readConfig(filepath, envName, caller);
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if (!conf) {
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throw new Error(`Config file ${filepath} contains no configuration data`);
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}
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debug("Loaded config %o from %o.", name, dirname);
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return conf;
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}
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function readConfig(filepath, envName, caller) {
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const ext = _path().extname(filepath);
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return ext === ".js" || ext === ".cjs" || ext === ".mjs" ? readConfigJS(filepath, {
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envName,
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caller
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}) : readConfigJSON5(filepath);
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}
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const LOADING_CONFIGS = new Set();
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const readConfigJS = (0, _caching.makeStrongCache)(function* readConfigJS(filepath, cache) {
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if (!_fs().existsSync(filepath)) {
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cache.never();
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return null;
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}
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if (LOADING_CONFIGS.has(filepath)) {
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cache.never();
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debug("Auto-ignoring usage of config %o.", filepath);
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return {
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filepath,
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dirname: _path().dirname(filepath),
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options: {}
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};
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}
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let options;
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try {
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LOADING_CONFIGS.add(filepath);
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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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} catch (err) {
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err.message = `${filepath}: Error while loading config - ${err.message}`;
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throw err;
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} finally {
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LOADING_CONFIGS.delete(filepath);
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}
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let assertCache = false;
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if (typeof options === "function") {
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yield* [];
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options = options((0, _configApi.makeConfigAPI)(cache));
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assertCache = true;
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}
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if (!options || typeof options !== "object" || Array.isArray(options)) {
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throw new Error(`${filepath}: Configuration should be an exported JavaScript object.`);
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}
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if (typeof options.then === "function") {
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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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}
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if (assertCache && !cache.configured()) throwConfigError();
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return {
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filepath,
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dirname: _path().dirname(filepath),
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options
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};
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});
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const packageToBabelConfig = (0, _caching.makeWeakCacheSync)(file => {
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const babel = file.options["babel"];
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if (typeof babel === "undefined") return null;
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if (typeof babel !== "object" || Array.isArray(babel) || babel === null) {
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throw new Error(`${file.filepath}: .babel property must be an object`);
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}
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return {
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filepath: file.filepath,
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dirname: file.dirname,
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options: babel
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};
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});
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const readConfigJSON5 = (0, _utils.makeStaticFileCache)((filepath, content) => {
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let options;
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try {
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options = _json().parse(content);
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} catch (err) {
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err.message = `${filepath}: Error while parsing config - ${err.message}`;
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throw err;
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}
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if (!options) throw new Error(`${filepath}: No config detected`);
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if (typeof options !== "object") {
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throw new Error(`${filepath}: Config returned typeof ${typeof options}`);
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}
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if (Array.isArray(options)) {
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throw new Error(`${filepath}: Expected config object but found array`);
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}
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delete options["$schema"];
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return {
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filepath,
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dirname: _path().dirname(filepath),
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options
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};
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});
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const readIgnoreConfig = (0, _utils.makeStaticFileCache)((filepath, content) => {
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const ignoreDir = _path().dirname(filepath);
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const ignorePatterns = content.split("\n").map(line => line.replace(/#(.*?)$/, "").trim()).filter(line => !!line);
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for (const pattern of ignorePatterns) {
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if (pattern[0] === "!") {
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throw new Error(`Negation of file paths is not supported.`);
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}
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}
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return {
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filepath,
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dirname: _path().dirname(filepath),
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ignore: ignorePatterns.map(pattern => (0, _patternToRegex.default)(pattern, ignoreDir))
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};
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});
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function* resolveShowConfigPath(dirname) {
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const targetPath = process.env.BABEL_SHOW_CONFIG_FOR;
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if (targetPath != null) {
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const absolutePath = _path().resolve(dirname, targetPath);
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const stats = yield* fs.stat(absolutePath);
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if (!stats.isFile()) {
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throw new Error(`${absolutePath}: BABEL_SHOW_CONFIG_FOR must refer to a regular file, directories are not supported.`);
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}
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return absolutePath;
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}
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return null;
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}
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function throwConfigError() {
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throw new Error(`\
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Caching was left unconfigured. Babel's plugins, presets, and .babelrc.js files can be configured
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for various types of caching, using the first param of their handler functions:
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module.exports = function(api) {
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// The API exposes the following:
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// Cache the returned value forever and don't call this function again.
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api.cache(true);
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// Don't cache at all. Not recommended because it will be very slow.
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api.cache(false);
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// Cached based on the value of some function. If this function returns a value different from
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// a previously-encountered value, the plugins will re-evaluate.
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var env = api.cache(() => process.env.NODE_ENV);
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// If testing for a specific env, we recommend specifics to avoid instantiating a plugin for
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// any possible NODE_ENV value that might come up during plugin execution.
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var isProd = api.cache(() => process.env.NODE_ENV === "production");
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// .cache(fn) will perform a linear search though instances to find the matching plugin based
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// based on previous instantiated plugins. If you want to recreate the plugin and discard the
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// previous instance whenever something changes, you may use:
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var isProd = api.cache.invalidate(() => process.env.NODE_ENV === "production");
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// Note, we also expose the following more-verbose versions of the above examples:
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api.cache.forever(); // api.cache(true)
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api.cache.never(); // api.cache(false)
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api.cache.using(fn); // api.cache(fn)
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// Return the value that will be cached.
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return { };
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};`);
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}
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