"use strict";
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exports.__esModule = true;
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var _assign = require("babel-runtime/core-js/object/assign");
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var _assign2 = _interopRequireDefault(_assign);
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var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck");
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var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
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exports.default = buildConfigChain;
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var _resolve = require("../../../helpers/resolve");
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var _resolve2 = _interopRequireDefault(_resolve);
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var _json = require("json5");
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var _json2 = _interopRequireDefault(_json);
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var _pathIsAbsolute = require("path-is-absolute");
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var _pathIsAbsolute2 = _interopRequireDefault(_pathIsAbsolute);
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var _path = require("path");
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var _path2 = _interopRequireDefault(_path);
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var _fs = require("fs");
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var _fs2 = _interopRequireDefault(_fs);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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var existsCache = {};
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var jsonCache = {};
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var BABELIGNORE_FILENAME = ".babelignore";
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var BABELRC_FILENAME = ".babelrc";
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var PACKAGE_FILENAME = "package.json";
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function exists(filename) {
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var cached = existsCache[filename];
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if (cached == null) {
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return existsCache[filename] = _fs2.default.existsSync(filename);
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} else {
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return cached;
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}
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}
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function buildConfigChain() {
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var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
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var log = arguments[1];
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var filename = opts.filename;
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var builder = new ConfigChainBuilder(log);
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if (opts.babelrc !== false) {
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builder.findConfigs(filename);
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}
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builder.mergeConfig({
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options: opts,
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alias: "base",
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dirname: filename && _path2.default.dirname(filename)
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});
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return builder.configs;
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}
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var ConfigChainBuilder = function () {
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function ConfigChainBuilder(log) {
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(0, _classCallCheck3.default)(this, ConfigChainBuilder);
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this.resolvedConfigs = [];
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this.configs = [];
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this.log = log;
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}
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ConfigChainBuilder.prototype.findConfigs = function findConfigs(loc) {
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if (!loc) return;
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if (!(0, _pathIsAbsolute2.default)(loc)) {
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loc = _path2.default.join(process.cwd(), loc);
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}
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var foundConfig = false;
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var foundIgnore = false;
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while (loc !== (loc = _path2.default.dirname(loc))) {
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if (!foundConfig) {
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var configLoc = _path2.default.join(loc, BABELRC_FILENAME);
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if (exists(configLoc)) {
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this.addConfig(configLoc);
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foundConfig = true;
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}
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var pkgLoc = _path2.default.join(loc, PACKAGE_FILENAME);
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if (!foundConfig && exists(pkgLoc)) {
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foundConfig = this.addConfig(pkgLoc, "babel", JSON);
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}
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}
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if (!foundIgnore) {
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var ignoreLoc = _path2.default.join(loc, BABELIGNORE_FILENAME);
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if (exists(ignoreLoc)) {
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this.addIgnoreConfig(ignoreLoc);
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foundIgnore = true;
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}
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}
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if (foundIgnore && foundConfig) return;
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}
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};
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ConfigChainBuilder.prototype.addIgnoreConfig = function addIgnoreConfig(loc) {
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var file = _fs2.default.readFileSync(loc, "utf8");
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var lines = file.split("\n");
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lines = lines.map(function (line) {
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return line.replace(/#(.*?)$/, "").trim();
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}).filter(function (line) {
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return !!line;
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});
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if (lines.length) {
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this.mergeConfig({
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options: { ignore: lines },
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alias: loc,
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dirname: _path2.default.dirname(loc)
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});
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}
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};
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ConfigChainBuilder.prototype.addConfig = function addConfig(loc, key) {
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var json = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : _json2.default;
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if (this.resolvedConfigs.indexOf(loc) >= 0) {
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return false;
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}
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this.resolvedConfigs.push(loc);
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var content = _fs2.default.readFileSync(loc, "utf8");
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var options = void 0;
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try {
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options = jsonCache[content] = jsonCache[content] || json.parse(content);
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if (key) options = options[key];
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} catch (err) {
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err.message = loc + ": Error while parsing JSON - " + err.message;
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throw err;
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}
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this.mergeConfig({
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options: options,
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alias: loc,
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dirname: _path2.default.dirname(loc)
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});
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return !!options;
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};
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ConfigChainBuilder.prototype.mergeConfig = function mergeConfig(_ref) {
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var options = _ref.options,
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alias = _ref.alias,
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loc = _ref.loc,
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dirname = _ref.dirname;
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if (!options) {
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return false;
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}
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options = (0, _assign2.default)({}, options);
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dirname = dirname || process.cwd();
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loc = loc || alias;
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if (options.extends) {
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var extendsLoc = (0, _resolve2.default)(options.extends, dirname);
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if (extendsLoc) {
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this.addConfig(extendsLoc);
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} else {
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if (this.log) this.log.error("Couldn't resolve extends clause of " + options.extends + " in " + alias);
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}
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delete options.extends;
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}
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this.configs.push({
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options: options,
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alias: alias,
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loc: loc,
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dirname: dirname
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});
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var envOpts = void 0;
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var envKey = process.env.BABEL_ENV || process.env.NODE_ENV || "development";
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if (options.env) {
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envOpts = options.env[envKey];
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delete options.env;
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}
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this.mergeConfig({
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options: envOpts,
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alias: alias + ".env." + envKey,
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dirname: dirname
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});
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};
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return ConfigChainBuilder;
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}();
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module.exports = exports["default"];
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