Remove the dependency of "del" (#55112)

Co-authored-by: Jake Bailey <5341706+jakebailey@users.noreply.github.com>

scripts/build/tests.mjs

@@ -2,7 +2,6 @@ import {
     CancelError,
 } from "@esfx/canceltoken";
 import chalk from "chalk";
-import del from "del";
 import fs from "fs";
 import os from "os";
 import path from "path";
@@ -15,6 +14,7 @@ import cmdLineOptions from "./options.mjs";
 import {
     exec,
     ExecError,
+    rimraf,
 } from "./utils.mjs";
 
 const mochaJs = path.resolve(findUpRoot(), "node_modules", "mocha", "bin", "_mocha");
@@ -48,16 +48,14 @@ export async function runConsoleTests(runJs, defaultReporter, runInParallel, opt
             console.log(chalk.yellowBright(`[watch] cleaning test directories...`));
         }
         await cleanTestDirs();
-        await cleanCoverageDir();
+        await rimraf(coverageDir);
 
         if (options.token?.signaled) {
             return;
         }
     }
 
-    if (fs.existsSync(testConfigFile)) {
-        fs.unlinkSync(testConfigFile);
-    }
+    await rimraf(testConfigFile);
 
     let workerCount, taskConfigsFolder;
     if (runInParallel) {
@@ -158,8 +156,8 @@ export async function runConsoleTests(runJs, defaultReporter, runInParallel, opt
         process.env.NODE_ENV = savedNodeEnv;
     }
 
-    await del("test.config");
-    await deleteTemporaryProjectOutput();
+    await rimraf("test.config");
+    await rimraf(path.join(localBaseline, "projectOutput"));
 
     if (error !== undefined) {
         if (error instanceof CancelError) {
@@ -177,14 +175,10 @@ export async function runConsoleTests(runJs, defaultReporter, runInParallel, opt
 }
 
 export async function cleanTestDirs() {
-    await del([localBaseline]);
+    await rimraf(localBaseline);
     await fs.promises.mkdir(localBaseline, { recursive: true });
 }
 
-async function cleanCoverageDir() {
-    await del([coverageDir]);
-}
-
 /**
  * used to pass data from command line directly to run.js
  * @param {string} tests
@@ -216,10 +210,6 @@ export function writeTestConfigFile(tests, runners, light, taskConfigsFolder, wo
     fs.writeFileSync("test.config", testConfigContents);
 }
 
-function deleteTemporaryProjectOutput() {
-    return del(path.join(localBaseline, "projectOutput/"));
-}
-
 /**
  * @param {string} text
  */

scripts/build/utils.mjs

@@ -232,3 +232,11 @@ export function memoize(fn) {
         return value;
     };
 }
+
+/**
+ * @param {fs.PathLike} p
+ */
+export function rimraf(p) {
+    // The rimraf package uses maxRetries=10 on Windows, but Node's fs.rm does not have that special case.
+    return fs.promises.rm(p, { recursive: true, force: true, maxRetries: process.platform === "win32" ? 10 : 0 });
+}