merge new into master

node_modules/enhanced-resolve/lib/util/fs.js

@@ -0,0 +1,38 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Natsu @xiaoxiaojx
+*/
+
+"use strict";
+
+/** @typedef {import("../Resolver").FileSystem} FileSystem */
+
+/**
+ * Read and parse JSON file
+ * @template T
+ * @param {FileSystem} fileSystem the file system
+ * @param {string} jsonFilePath absolute path to JSON file
+ * @returns {Promise<T>} parsed JSON content
+ */
+async function readJson(fileSystem, jsonFilePath) {
+	const { readJson } = fileSystem;
+	if (readJson) {
+		return new Promise((resolve, reject) => {
+			readJson(jsonFilePath, (err, content) => {
+				if (err) return reject(err);
+				resolve(/** @type {T} */ (content));
+			});
+		});
+	}
+
+	const buf = await new Promise((resolve, reject) => {
+		fileSystem.readFile(jsonFilePath, (err, data) => {
+			if (err) return reject(err);
+			resolve(data);
+		});
+	});
+
+	return JSON.parse(/** @type {string} */ (buf.toString()));
+}
+
+module.exports.readJson = readJson;