"use strict"; const { ParserError } = require("../util/errors"); const yaml = require("js-yaml"); module.exports = { /** * The order that this parser will run, in relation to other parsers. * * @type {number} */ order: 200, /** * Whether to allow "empty" files. This includes zero-byte files, as well as empty JSON objects. * * @type {boolean} */ allowEmpty: true, /** * Determines whether this parser can parse a given file reference. * Parsers that match will be tried, in order, until one successfully parses the file. * Parsers that don't match will be skipped, UNLESS none of the parsers match, in which case * every parser will be tried. * * @type {RegExp|string[]|function} */ canParse: [".yaml", ".yml", ".json"], // JSON is valid YAML /** * Parses the given file as YAML * * @param {object} file - An object containing information about the referenced file * @param {string} file.url - The full URL of the referenced file * @param {string} file.extension - The lowercased file extension (e.g. ".txt", ".html", etc.) * @param {*} file.data - The file contents. This will be whatever data type was returned by the resolver * @returns {Promise} */ async parse (file) { // eslint-disable-line require-await let data = file.data; if (Buffer.isBuffer(data)) { data = data.toString(); } if (typeof data === "string") { try { return yaml.load(data); } catch (e) { throw new ParserError(e.message, file.url); } } else { // data is already a JavaScript value (object, array, number, null, NaN, etc.) return data; } } };