(refactor): replace rimraf, mkdirp, util.promisify with fs-extra funcs (

#501)

- they're a lot cleaner and this is one of the explicit goals of
  fs-extra per its "Why?" section of its README
  - it's also already used internally in most places, so this nixes
    the remaining places

(deps): remove rimraf, mkdirp, and their @types/ packages

package.json

@@ -48,7 +48,6 @@
     "@rollup/plugin-json": "^4.0.0",
     "@rollup/plugin-node-resolve": "^7.1.0",
     "@rollup/plugin-replace": "^2.2.1",
-    "@types/rimraf": "^2.0.2",
     "@types/shelljs": "^0.8.5",
     "@typescript-eslint/eslint-plugin": "^2.12.0",
     "@typescript-eslint/parser": "^2.12.0",
@@ -83,12 +82,10 @@
     "jest-watch-typeahead": "^0.4.0",
     "jpjs": "^1.2.1",
     "lodash.merge": "^4.6.2",
-    "mkdirp": "^0.5.1",
     "ora": "^3.4.0",
     "pascal-case": "^2.0.1",
     "prettier": "^1.19.1",
     "progress-estimator": "^0.2.2",
-    "rimraf": "^3.0.0",
     "rollup": "^1.27.8",
     "rollup-plugin-babel": "^4.3.2",
     "rollup-plugin-sourcemaps": "^0.4.2",
@@ -108,7 +105,6 @@
     "@types/execa": "^0.9.0",
     "@types/fs-extra": "^8.0.0",
     "@types/jest": "^24.0.15",
-    "@types/mkdirp": "^0.5.2",
     "@types/ms": "^0.7.30",
     "@types/node": "^13.1.0",
     "@types/ora": "^3.2.0",

src/createEslintConfig.ts

@@ -1,6 +1,5 @@
-import fs from 'fs';
+import fs from 'fs-extra';
 import path from 'path';
-import util from 'util';
 import { CLIEngine } from 'eslint';
 import { PackageJson } from './types';
 import { getReactVersion } from './utils';
@@ -37,7 +36,7 @@ export async function createEslintConfig({
 
   const file = path.join(rootDir, '.eslintrc.js');
   try {
-    await util.promisify(fs.writeFile)(
+    await fs.writeFile(
       file,
       `module.exports = ${JSON.stringify(config, null, 2)}`,
       { flag: 'wx' }

src/createProgressEstimator.ts

@@ -1,10 +1,11 @@
+import fs from 'fs-extra';
+
 import { paths } from './constants';
-import util from 'util';
-import mkdirp from 'mkdirp';
+
 const progressEstimator = require('progress-estimator');
 
 export async function createProgressEstimator() {
-  await util.promisify(mkdirp)(paths.progressEstimatorCache);
+  await fs.ensureDir(paths.progressEstimatorCache);
   return progressEstimator({
     // All configuration keys are optional, but it's recommended to specify a storage location.
     storagePath: paths.progressEstimatorCache,

yarn.lock

@@ -1098,13 +1098,6 @@
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
   integrity sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==
 
-"@types/mkdirp@^0.5.2":
-  version "0.5.2"
-  resolved "https://registry.yarnpkg.com/@types/mkdirp/-/mkdirp-0.5.2.tgz#503aacfe5cc2703d5484326b1b27efa67a339c1f"
-  integrity sha512-U5icWpv7YnZYGsN4/cmh3WD2onMY0aJIiTE6+51TwJCttdHvtCYmkBNOobHlXwrJRL0nkH9jH4kD+1FAdMN4Tg==
-  dependencies:
-    "@types/node" "*"
-
 "@types/mri@*":
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/@types/mri/-/mri-1.1.0.tgz#66555e4d797713789ea0fefdae0898d8170bf5af"
@@ -1162,14 +1155,6 @@
   dependencies:
     "@types/node" "*"
 
-"@types/rimraf@^2.0.2":
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/@types/rimraf/-/rimraf-2.0.3.tgz#0199a46af106729ba14213fda7b981278d8c84f2"
-  integrity sha512-dZfyfL/u9l/oi984hEXdmAjX3JHry7TLWw43u1HQ8HhPv6KtfxnrZ3T/bleJ0GEvnk9t5sM7eePkgMqz3yBcGg==
-  dependencies:
-    "@types/glob" "*"
-    "@types/node" "*"
-
 "@types/rollup-plugin-json@^3.0.2":
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/@types/rollup-plugin-json/-/rollup-plugin-json-3.0.2.tgz#1153136a515ed4fbb7ef214ace496f5fc3ed7796"
@@ -5618,13 +5603,6 @@ rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.3:
   dependencies:
     glob "^7.1.3"
 
-rimraf@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-3.0.0.tgz#614176d4b3010b75e5c390eb0ee96f6dc0cebb9b"
-  integrity sha512-NDGVxTsjqfunkds7CqsOiEnxln4Bo7Nddl3XhS4pXg5OzwkLqJ971ZVAAnB+DDLnF76N+VnDEiBHaVV8I06SUg==
-  dependencies:
-    glob "^7.1.3"
-
 rollup-plugin-babel@^4.3.2:
   version "4.3.3"
   resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-4.3.3.tgz#7eb5ac16d9b5831c3fd5d97e8df77ba25c72a2aa"