Updated the files.

my-app/node_modules/copy-webpack-plugin/dist/utils.js

@@ -0,0 +1,123 @@
+"use strict";
+
+/** @typedef {import("webpack").Compilation["inputFileSystem"] } InputFileSystem */
+
+/** @typedef {import("fs").Stats } Stats */
+
+/**
+ * @param {InputFileSystem} inputFileSystem
+ * @param {string} path
+ * @return {Promise<undefined | Stats>}
+ */
+function stat(inputFileSystem, path) {
+  return new Promise((resolve, reject) => {
+    inputFileSystem.stat(path,
+    /**
+     * @param {null | undefined | NodeJS.ErrnoException} err
+     * @param {undefined | Stats} stats
+     */
+    // @ts-ignore
+    (err, stats) => {
+      if (err) {
+        reject(err);
+        return;
+      }
+
+      resolve(stats);
+    });
+  });
+}
+/**
+ * @param {InputFileSystem} inputFileSystem
+ * @param {string} path
+ * @return {Promise<string | Buffer>}
+ */
+
+
+function readFile(inputFileSystem, path) {
+  return new Promise((resolve, reject) => {
+    inputFileSystem.readFile(path,
+    /**
+     * @param {null | undefined | NodeJS.ErrnoException} err
+     * @param {undefined | string | Buffer} data
+     */
+    (err, data) => {
+      if (err) {
+        reject(err);
+        return;
+      }
+
+      resolve(
+      /** @type {string | Buffer} */
+      data);
+    });
+  });
+}
+
+const notSettled = Symbol(`not-settled`);
+/**
+ * @template T
+ * @typedef {() => Promise<T>} Task
+ */
+
+/**
+ * Run tasks with limited concurency.
+ * @template T
+ * @param {number} limit - Limit of tasks that run at once.
+ * @param {Task<T>[]} tasks - List of tasks to run.
+ * @returns {Promise<T[]>} A promise that fulfills to an array of the results
+ */
+
+function throttleAll(limit, tasks) {
+  if (!Number.isInteger(limit) || limit < 1) {
+    throw new TypeError(`Expected \`limit\` to be a finite number > 0, got \`${limit}\` (${typeof limit})`);
+  }
+
+  if (!Array.isArray(tasks) || !tasks.every(task => typeof task === `function`)) {
+    throw new TypeError(`Expected \`tasks\` to be a list of functions returning a promise`);
+  }
+
+  return new Promise((resolve, reject) => {
+    const result = Array(tasks.length).fill(notSettled);
+    const entries = tasks.entries();
+
+    const next = () => {
+      const {
+        done,
+        value
+      } = entries.next();
+
+      if (done) {
+        const isLast = !result.includes(notSettled);
+
+        if (isLast) {
+          resolve(
+          /** @type{T[]} **/
+          result);
+        }
+
+        return;
+      }
+
+      const [index, task] = value;
+      /**
+       * @param {T} x
+       */
+
+      const onFulfilled = x => {
+        result[index] = x;
+        next();
+      };
+
+      task().then(onFulfilled, reject);
+    };
+
+    Array(limit).fill(0).forEach(next);
+  });
+}
+
+module.exports = {
+  stat,
+  readFile,
+  throttleAll
+};