“use strict”;

Object.defineProperty(exports, “__esModule”, {

value: true

}); exports.findConfigUpwards = findConfigUpwards; exports.findRelativeConfig = findRelativeConfig; exports.findRootConfig = findRootConfig; exports.loadConfig = loadConfig;

function _debug() {

const data = _interopRequireDefault(require("debug"));

_debug = function () {
  return data;
};

return data;

}

function _path() {

const data = _interopRequireDefault(require("path"));

_path = function () {
  return data;
};

return data;

}

function _fs() {

const data = _interopRequireDefault(require("fs"));

_fs = function () {
  return data;
};

return data;

}

function _json() {

const data = _interopRequireDefault(require("json5"));

_json = function () {
  return data;
};

return data;

}

function _resolve() {

const data = _interopRequireDefault(require("resolve"));

_resolve = function () {
  return data;
};

return data;

}

var _caching = require(“../caching”);

var _configApi = _interopRequireDefault(require(“../helpers/config-api”));

var _utils = require(“./utils”);

var _patternToRegex = _interopRequireDefault(require(“../pattern-to-regex”));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const debug = (0, _debug().default)(“babel:config:loading:files:configuration”); const BABEL_CONFIG_JS_FILENAME = “babel.config.js”; const BABELRC_FILENAME = “.babelrc”; const BABELRC_JS_FILENAME = “.babelrc.js”; const BABELIGNORE_FILENAME = “.babelignore”;

function findConfigUpwards(rootDir) {

let dirname = rootDir;

while (true) {
  if (_fs().default.existsSync(_path().default.join(dirname, BABEL_CONFIG_JS_FILENAME))) {
    return dirname;
  }

  const nextDir = _path().default.dirname(dirname);

  if (dirname === nextDir) break;
  dirname = nextDir;
}

return null;

}

function findRelativeConfig(packageData, envName, caller) {

let config = null;
let ignore = null;

const dirname = _path().default.dirname(packageData.filepath);

for (const loc of packageData.directories) {
  if (!config) {
    config = [BABELRC_FILENAME, BABELRC_JS_FILENAME].reduce((previousConfig, name) => {
      const filepath = _path().default.join(loc, name);

      const config = readConfig(filepath, envName, caller);

      if (config && previousConfig) {
        throw new Error(`Multiple configuration files found. Please remove one:\n` + ` - ${_path().default.basename(previousConfig.filepath)}\n` + ` - ${name}\n` + `from ${loc}`);
      }

      return config || previousConfig;
    }, null);
    const pkgConfig = packageData.pkg && packageData.pkg.dirname === loc ? packageToBabelConfig(packageData.pkg) : null;

    if (pkgConfig) {
      if (config) {
        throw new Error(`Multiple configuration files found. Please remove one:\n` + ` - ${_path().default.basename(pkgConfig.filepath)}#babel\n` + ` - ${_path().default.basename(config.filepath)}\n` + `from ${loc}`);
      }

      config = pkgConfig;
    }

    if (config) {
      debug("Found configuration %o from %o.", config.filepath, dirname);
    }
  }

  if (!ignore) {
    const ignoreLoc = _path().default.join(loc, BABELIGNORE_FILENAME);

    ignore = readIgnoreConfig(ignoreLoc);

    if (ignore) {
      debug("Found ignore %o from %o.", ignore.filepath, dirname);
    }
  }
}

return {
  config,
  ignore
};

}

function findRootConfig(dirname, envName, caller) {

const filepath = _path().default.resolve(dirname, BABEL_CONFIG_JS_FILENAME);

const conf = readConfig(filepath, envName, caller);

if (conf) {
  debug("Found root config %o in %o.", BABEL_CONFIG_JS_FILENAME, dirname);
}

return conf;

}

function loadConfig(name, dirname, envName, caller) {

const filepath = _resolve().default.sync(name, {
  basedir: dirname
});

const conf = readConfig(filepath, envName, caller);

if (!conf) {
  throw new Error(`Config file ${filepath} contains no configuration data`);
}

debug("Loaded config %o from %o.", name, dirname);
return conf;

}

function readConfig(filepath, envName, caller) {

return _path().default.extname(filepath) === ".js" ? readConfigJS(filepath, {
  envName,
  caller
}) : readConfigJSON5(filepath);

}

const LOADING_CONFIGS = new Set(); const readConfigJS = (0, _caching.makeStrongCache)((filepath, cache) => {

if (!_fs().default.existsSync(filepath)) {
  cache.forever();
  return null;
}

if (LOADING_CONFIGS.has(filepath)) {
  cache.never();
  debug("Auto-ignoring usage of config %o.", filepath);
  return {
    filepath,
    dirname: _path().default.dirname(filepath),
    options: {}
  };
}

let options;

try {
  LOADING_CONFIGS.add(filepath);

  const configModule = require(filepath);

  options = configModule && configModule.__esModule ? configModule.default || undefined : configModule;
} catch (err) {
  err.message = `${filepath}: Error while loading config - ${err.message}`;
  throw err;
} finally {
  LOADING_CONFIGS.delete(filepath);
}

if (typeof options === "function") {
  options = options((0, _configApi.default)(cache));
  if (!cache.configured()) throwConfigError();
}

if (!options || typeof options !== "object" || Array.isArray(options)) {
  throw new Error(`${filepath}: Configuration should be an exported JavaScript object.`);
}

if (typeof options.then === "function") {
  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.`);
}

return {
  filepath,
  dirname: _path().default.dirname(filepath),
  options
};

}); const packageToBabelConfig = (0, _caching.makeWeakCache)(file => {

const babel = file.options["babel"];
if (typeof babel === "undefined") return null;

if (typeof babel !== "object" || Array.isArray(babel) || babel === null) {
  throw new Error(`${file.filepath}: .babel property must be an object`);
}

return {
  filepath: file.filepath,
  dirname: file.dirname,
  options: babel
};

}); const readConfigJSON5 = (0, _utils.makeStaticFileCache)((filepath, content) => {

let options;

try {
  options = _json().default.parse(content);
} catch (err) {
  err.message = `${filepath}: Error while parsing config - ${err.message}`;
  throw err;
}

if (!options) throw new Error(`${filepath}: No config detected`);

if (typeof options !== "object") {
  throw new Error(`${filepath}: Config returned typeof ${typeof options}`);
}

if (Array.isArray(options)) {
  throw new Error(`${filepath}: Expected config object but found array`);
}

return {
  filepath,
  dirname: _path().default.dirname(filepath),
  options
};

}); const readIgnoreConfig = (0, _utils.makeStaticFileCache)((filepath, content) => {

const ignoreDir = _path().default.dirname(filepath);

const ignorePatterns = content.split("\n").map(line => line.replace(/#(.*?)$/, "").trim()).filter(line => !!line);

for (const pattern of ignorePatterns) {
  if (pattern[0] === "!") {
    throw new Error(`Negation of file paths is not supported.`);
  }
}

return {
  filepath,
  dirname: _path().default.dirname(filepath),
  ignore: ignorePatterns.map(pattern => (0, _patternToRegex.default)(pattern, ignoreDir))
};

});

function throwConfigError() {

throw new Error(`\

Caching was left unconfigured. Babel's plugins, presets, and .babelrc.js files can be configured for various types of caching, using the first param of their handler functions:

module.exports = function(api) {

// The API exposes the following:

// Cache the returned value forever and don't call this function again.
api.cache(true);

// Don't cache at all. Not recommended because it will be very slow.
api.cache(false);

// Cached based on the value of some function. If this function returns a value different from
// a previously-encountered value, the plugins will re-evaluate.
var env = api.cache(() => process.env.NODE_ENV);

// If testing for a specific env, we recommend specifics to avoid instantiating a plugin for
// any possible NODE_ENV value that might come up during plugin execution.
var isProd = api.cache(() => process.env.NODE_ENV === "production");

// .cache(fn) will perform a linear search though instances to find the matching plugin based
// based on previous instantiated plugins. If you want to recreate the plugin and discard the
// previous instance whenever something changes, you may use:
var isProd = api.cache.invalidate(() => process.env.NODE_ENV === "production");

// Note, we also expose the following more-verbose versions of the above examples:
api.cache.forever(); // api.cache(true)
api.cache.never();   // api.cache(false)
api.cache.using(fn); // api.cache(fn)

// Return the value that will be cached.
return { };

};`); }