implemented basic client-server communication

node_modules/simple-update-notifier/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Alex Brazier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/simple-update-notifier/README.md

@@ -0,0 +1,82 @@
+# simple-update-notifier [![GitHub stars](https://img.shields.io/github/stars/alexbrazier/simple-update-notifier?label=Star%20Project&style=social)](https://github.com/alexbrazier/simple-update-notifier/stargazers)
+
+[![CI](https://github.com/alexbrazier/simple-update-notifier/workflows/Build%20and%20Deploy/badge.svg)](https://github.com/alexbrazier/simple-update-notifier/actions)
+[![Dependencies](https://img.shields.io/librariesio/release/npm/simple-update-notifier)](https://www.npmjs.com/package/simple-update-notifier?activeTab=dependencies)
+[![npm](https://img.shields.io/npm/v/simple-update-notifier)](https://www.npmjs.com/package/simple-update-notifier)
+[![npm bundle size](https://img.shields.io/bundlephobia/min/simple-update-notifier)](https://bundlephobia.com/result?p=simple-update-notifier)
+[![npm downloads](https://img.shields.io/npm/dw/simple-update-notifier)](https://www.npmjs.com/package/simple-update-notifier)
+[![License](https://img.shields.io/npm/l/simple-update-notifier)](./LICENSE)
+
+Simple update notifier to check for npm updates for cli applications.
+
+<img src="./.github/demo.png" alt="Demo in terminal showing an update is required">
+
+Checks for updates for an npm module and outputs to the command line if there is one available. The result is cached for the specified time so it doesn't check every time the app runs.
+
+## Install
+
+```bash
+npm install simple-update-notifier
+OR
+yarn add simple-update-notifier
+```
+
+## Usage
+
+```js
+import updateNotifier from 'simple-update-notifier';
+import packageJson from './package.json' assert { type: 'json' };
+
+updateNotifier({ pkg: packageJson });
+```
+
+### Options
+
+#### pkg
+
+Type: `object`
+
+##### name
+
+_Required_\
+Type: `string`
+
+##### version
+
+_Required_\
+Type: `string`
+
+#### updateCheckInterval
+
+Type: `number`\
+Default: `1000 * 60 * 60 * 24` _(1 day)_
+
+How often to check for updates.
+
+#### shouldNotifyInNpmScript
+
+Type: `boolean`\
+Default: `false`
+
+Allows notification to be shown when running as an npm script.
+
+#### distTag
+
+Type: `string`\
+Default: `'latest'`
+
+Which [dist-tag](https://docs.npmjs.com/adding-dist-tags-to-packages) to use to find the latest version.
+
+#### alwaysRun
+
+Type: `boolean`\
+Default: `false`
+
+When set, `updateCheckInterval` will not be respected and a check for an update will always be performed.
+
+#### debug
+
+Type: `boolean`\
+Default: `false`
+
+When set, logs explaining the decision will be output to `stderr` whenever the module opts to not print an update notification

node_modules/simple-update-notifier/build/index.d.ts

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+interface IUpdate {
+    pkg: {
+        name: string;
+        version: string;
+    };
+    updateCheckInterval?: number;
+    shouldNotifyInNpmScript?: boolean;
+    distTag?: string;
+    alwaysRun?: boolean;
+    debug?: boolean;
+}
+declare const simpleUpdateNotifier: (args: IUpdate) => Promise<void>;
+export { simpleUpdateNotifier as default };

node_modules/simple-update-notifier/build/index.js

@@ -0,0 +1,210 @@
+'use strict';
+
+var process$1 = require('process');
+var semver = require('semver');
+var os = require('os');
+var path = require('path');
+var fs = require('fs');
+var https = require('https');
+
+/******************************************************************************
+Copyright (c) Microsoft Corporation.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+***************************************************************************** */
+/* global Reflect, Promise */
+
+
+function __awaiter(thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+}
+
+function __generator(thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (g && (g = 0, op[0] && (_ = 0)), _) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
+}
+
+var packageJson = process$1.env.npm_package_json;
+var userAgent = process$1.env.npm_config_user_agent;
+var isNpm6 = Boolean(userAgent && userAgent.startsWith('npm'));
+var isNpm7 = Boolean(packageJson && packageJson.endsWith('package.json'));
+var isNpm = isNpm6 || isNpm7;
+var isYarn = Boolean(userAgent && userAgent.startsWith('yarn'));
+var isNpmOrYarn = isNpm || isYarn;
+
+var homeDirectory = os.homedir();
+var configDir = process.env.XDG_CONFIG_HOME ||
+    path.join(homeDirectory, '.config', 'simple-update-notifier');
+var getConfigFile = function (packageName) {
+    return path.join(configDir, "".concat(packageName.replace('@', '').replace('/', '__'), ".json"));
+};
+var createConfigDir = function () {
+    if (!fs.existsSync(configDir)) {
+        fs.mkdirSync(configDir, { recursive: true });
+    }
+};
+var getLastUpdate = function (packageName) {
+    var configFile = getConfigFile(packageName);
+    try {
+        if (!fs.existsSync(configFile)) {
+            return undefined;
+        }
+        var file = JSON.parse(fs.readFileSync(configFile, 'utf8'));
+        return file.lastUpdateCheck;
+    }
+    catch (_a) {
+        return undefined;
+    }
+};
+var saveLastUpdate = function (packageName) {
+    var configFile = getConfigFile(packageName);
+    fs.writeFileSync(configFile, JSON.stringify({ lastUpdateCheck: new Date().getTime() }));
+};
+
+var getDistVersion = function (packageName, distTag) { return __awaiter(void 0, void 0, void 0, function () {
+    var url;
+    return __generator(this, function (_a) {
+        url = "https://registry.npmjs.org/-/package/".concat(packageName, "/dist-tags");
+        return [2 /*return*/, new Promise(function (resolve, reject) {
+                https
+                    .get(url, function (res) {
+                    var body = '';
+                    res.on('data', function (chunk) { return (body += chunk); });
+                    res.on('end', function () {
+                        try {
+                            var json = JSON.parse(body);
+                            var version = json[distTag];
+                            if (!version) {
+                                reject(new Error('Error getting version'));
+                            }
+                            resolve(version);
+                        }
+                        catch (_a) {
+                            reject(new Error('Could not parse version response'));
+                        }
+                    });
+                })
+                    .on('error', function (err) { return reject(err); });
+            })];
+    });
+}); };
+
+var hasNewVersion = function (_a) {
+    var pkg = _a.pkg, _b = _a.updateCheckInterval, updateCheckInterval = _b === void 0 ? 1000 * 60 * 60 * 24 : _b, _c = _a.distTag, distTag = _c === void 0 ? 'latest' : _c, alwaysRun = _a.alwaysRun, debug = _a.debug;
+    return __awaiter(void 0, void 0, void 0, function () {
+        var lastUpdateCheck, latestVersion;
+        return __generator(this, function (_d) {
+            switch (_d.label) {
+                case 0:
+                    createConfigDir();
+                    lastUpdateCheck = getLastUpdate(pkg.name);
+                    if (!(alwaysRun ||
+                        !lastUpdateCheck ||
+                        lastUpdateCheck < new Date().getTime() - updateCheckInterval)) return [3 /*break*/, 2];
+                    return [4 /*yield*/, getDistVersion(pkg.name, distTag)];
+                case 1:
+                    latestVersion = _d.sent();
+                    saveLastUpdate(pkg.name);
+                    if (semver.gt(latestVersion, pkg.version)) {
+                        return [2 /*return*/, latestVersion];
+                    }
+                    else if (debug) {
+                        console.error("Latest version (".concat(latestVersion, ") not newer than current version (").concat(pkg.version, ")"));
+                    }
+                    return [3 /*break*/, 3];
+                case 2:
+                    if (debug) {
+                        console.error("Too recent to check for a new update. simpleUpdateNotifier() interval set to ".concat(updateCheckInterval, "ms but only ").concat(new Date().getTime() - lastUpdateCheck, "ms since last check."));
+                    }
+                    _d.label = 3;
+                case 3: return [2 /*return*/, false];
+            }
+        });
+    });
+};
+
+var borderedText = function (text) {
+    var lines = text.split('\n');
+    var width = Math.max.apply(Math, lines.map(function (l) { return l.length; }));
+    var res = ["\u250C".concat('─'.repeat(width + 2), "\u2510")];
+    for (var _i = 0, lines_1 = lines; _i < lines_1.length; _i++) {
+        var line = lines_1[_i];
+        res.push("\u2502 ".concat(line.padEnd(width), " \u2502"));
+    }
+    res.push("\u2514".concat('─'.repeat(width + 2), "\u2518"));
+    return res.join('\n');
+};
+
+var simpleUpdateNotifier = function (args) { return __awaiter(void 0, void 0, void 0, function () {
+    var latestVersion, err_1;
+    return __generator(this, function (_a) {
+        switch (_a.label) {
+            case 0:
+                if (!args.alwaysRun &&
+                    (!process.stdout.isTTY || (isNpmOrYarn && !args.shouldNotifyInNpmScript))) {
+                    if (args.debug) {
+                        console.error('Opting out of running simpleUpdateNotifier()');
+                    }
+                    return [2 /*return*/];
+                }
+                _a.label = 1;
+            case 1:
+                _a.trys.push([1, 3, , 4]);
+                return [4 /*yield*/, hasNewVersion(args)];
+            case 2:
+                latestVersion = _a.sent();
+                if (latestVersion) {
+                    console.error(borderedText("New version of ".concat(args.pkg.name, " available!\nCurrent Version: ").concat(args.pkg.version, "\nLatest Version: ").concat(latestVersion)));
+                }
+                return [3 /*break*/, 4];
+            case 3:
+                err_1 = _a.sent();
+                // Catch any network errors or cache writing errors so module doesn't cause a crash
+                if (args.debug && err_1 instanceof Error) {
+                    console.error('Unexpected error in simpleUpdateNotifier():', err_1);
+                }
+                return [3 /*break*/, 4];
+            case 4: return [2 /*return*/];
+        }
+    });
+}); };
+
+module.exports = simpleUpdateNotifier;

node_modules/simple-update-notifier/package.json

@@ -0,0 +1,100 @@
+{
+  "name": "simple-update-notifier",
+  "version": "2.0.0",
+  "description": "Simple update notifier to check for npm updates for cli applications",
+  "main": "build/index.js",
+  "types": "build/index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/alexbrazier/simple-update-notifier.git"
+  },
+  "homepage": "https://github.com/alexbrazier/simple-update-notifier.git",
+  "author": "alexbrazier",
+  "license": "MIT",
+  "engines": {
+    "node": ">=10"
+  },
+  "scripts": {
+    "test": "jest src --noStackTrace",
+    "build": "rollup -c rollup.config.js --bundleConfigAsCjs",
+    "prettier:check": "prettier --check src/**/*.ts",
+    "prettier": "prettier --write src/**/*.ts",
+    "eslint": "eslint src/**/*.ts",
+    "lint": "yarn prettier:check && yarn eslint",
+    "prepare": "yarn lint && yarn build",
+    "release": "release-it"
+  },
+  "dependencies": {
+    "semver": "^7.5.3"
+  },
+  "devDependencies": {
+    "@babel/preset-env": "^7.22.5",
+    "@babel/preset-typescript": "^7.22.5",
+    "@release-it/conventional-changelog": "^5.1.1",
+    "@types/jest": "^29.5.2",
+    "@types/node": "^20.3.1",
+    "@typescript-eslint/eslint-plugin": "^5.60.0",
+    "@typescript-eslint/parser": "^5.60.0",
+    "eslint": "^8.43.0",
+    "eslint-config-prettier": "^8.8.0",
+    "eslint-plugin-prettier": "^4.0.0",
+    "jest": "^29.5.0",
+    "prettier": "^2.8.8",
+    "release-it": "^15.11.0",
+    "rollup": "^3.25.2",
+    "rollup-plugin-ts": "^3.2.0",
+    "typescript": "^5.1.3"
+  },
+  "resolutions": {
+    "semver": "^7.5.3"
+  },
+  "publishConfig": {
+    "registry": "https://registry.npmjs.org/"
+  },
+  "files": [
+    "build",
+    "src"
+  ],
+  "release-it": {
+    "git": {
+      "commitMessage": "chore: release ${version}",
+      "tagName": "v${version}"
+    },
+    "npm": {
+      "publish": true
+    },
+    "github": {
+      "release": true
+    },
+    "plugins": {
+      "@release-it/conventional-changelog": {
+        "preset": "angular",
+        "infile": "CHANGELOG.md"
+      }
+    }
+  },
+  "eslintConfig": {
+    "plugins": [
+      "@typescript-eslint",
+      "prettier"
+    ],
+    "extends": [
+      "prettier",
+      "eslint:recommended",
+      "plugin:@typescript-eslint/recommended"
+    ],
+    "parser": "@typescript-eslint/parser",
+    "rules": {
+      "prettier/prettier": [
+        "error",
+        {
+          "quoteProps": "consistent",
+          "singleQuote": true,
+          "tabWidth": 2,
+          "trailingComma": "es5",
+          "useTabs": false
+        }
+      ]
+    }
+  }
+}

node_modules/simple-update-notifier/src/borderedText.ts

@@ -0,0 +1,12 @@
+const borderedText = (text: string) => {
+  const lines = text.split('\n');
+  const width = Math.max(...lines.map((l) => l.length));
+  const res = [`┌${'─'.repeat(width + 2)}┐`];
+  for (const line of lines) {
+    res.push(`│ ${line.padEnd(width)} │`);
+  }
+  res.push(`└${'─'.repeat(width + 2)}┘`);
+  return res.join('\n');
+};
+
+export default borderedText;

node_modules/simple-update-notifier/src/cache.spec.ts

@@ -0,0 +1,17 @@
+import { createConfigDir, getLastUpdate, saveLastUpdate } from './cache';
+
+createConfigDir();
+
+jest.useFakeTimers().setSystemTime(new Date('2022-01-01'));
+
+const fakeTime = new Date('2022-01-01').getTime();
+
+test('can save update then get the update details', () => {
+  saveLastUpdate('test');
+  expect(getLastUpdate('test')).toBe(fakeTime);
+});
+
+test('prefixed module can save update then get the update details', () => {
+  saveLastUpdate('@alexbrazier/test');
+  expect(getLastUpdate('@alexbrazier/test')).toBe(fakeTime);
+});

node_modules/simple-update-notifier/src/cache.ts

@@ -0,0 +1,44 @@
+import os from 'os';
+import path from 'path';
+import fs from 'fs';
+
+const homeDirectory = os.homedir();
+const configDir =
+  process.env.XDG_CONFIG_HOME ||
+  path.join(homeDirectory, '.config', 'simple-update-notifier');
+
+const getConfigFile = (packageName: string) => {
+  return path.join(
+    configDir,
+    `${packageName.replace('@', '').replace('/', '__')}.json`
+  );
+};
+
+export const createConfigDir = () => {
+  if (!fs.existsSync(configDir)) {
+    fs.mkdirSync(configDir, { recursive: true });
+  }
+};
+
+export const getLastUpdate = (packageName: string) => {
+  const configFile = getConfigFile(packageName);
+
+  try {
+    if (!fs.existsSync(configFile)) {
+      return undefined;
+    }
+    const file = JSON.parse(fs.readFileSync(configFile, 'utf8'));
+    return file.lastUpdateCheck as number;
+  } catch {
+    return undefined;
+  }
+};
+
+export const saveLastUpdate = (packageName: string) => {
+  const configFile = getConfigFile(packageName);
+
+  fs.writeFileSync(
+    configFile,
+    JSON.stringify({ lastUpdateCheck: new Date().getTime() })
+  );
+};

node_modules/simple-update-notifier/src/getDistVersion.spec.ts

@@ -0,0 +1,35 @@
+import Stream from 'stream';
+import https from 'https';
+import getDistVersion from './getDistVersion';
+
+jest.mock('https', () => ({
+  get: jest.fn(),
+}));
+
+test('Valid response returns version', async () => {
+  const st = new Stream();
+  (https.get as jest.Mock).mockImplementation((url, cb) => {
+    cb(st);
+
+    st.emit('data', '{"latest":"1.0.0"}');
+    st.emit('end');
+  });
+
+  const version = await getDistVersion('test', 'latest');
+
+  expect(version).toEqual('1.0.0');
+});
+
+test('Invalid response throws error', async () => {
+  const st = new Stream();
+  (https.get as jest.Mock).mockImplementation((url, cb) => {
+    cb(st);
+
+    st.emit('data', 'some invalid json');
+    st.emit('end');
+  });
+
+  expect(getDistVersion('test', 'latest')).rejects.toThrow(
+    'Could not parse version response'
+  );
+});

node_modules/simple-update-notifier/src/getDistVersion.ts

@@ -0,0 +1,29 @@
+import https from 'https';
+
+const getDistVersion = async (packageName: string, distTag: string) => {
+  const url = `https://registry.npmjs.org/-/package/${packageName}/dist-tags`;
+
+  return new Promise<string>((resolve, reject) => {
+    https
+      .get(url, (res) => {
+        let body = '';
+
+        res.on('data', (chunk) => (body += chunk));
+        res.on('end', () => {
+          try {
+            const json = JSON.parse(body);
+            const version = json[distTag];
+            if (!version) {
+              reject(new Error('Error getting version'));
+            }
+            resolve(version);
+          } catch {
+            reject(new Error('Could not parse version response'));
+          }
+        });
+      })
+      .on('error', (err) => reject(err));
+  });
+};
+
+export default getDistVersion;

node_modules/simple-update-notifier/src/hasNewVersion.spec.ts

@@ -0,0 +1,82 @@
+import hasNewVersion from './hasNewVersion';
+import { getLastUpdate } from './cache';
+import getDistVersion from './getDistVersion';
+
+jest.mock('./getDistVersion', () => jest.fn().mockReturnValue('1.0.0'));
+jest.mock('./cache', () => ({
+  getLastUpdate: jest.fn().mockReturnValue(undefined),
+  createConfigDir: jest.fn(),
+  saveLastUpdate: jest.fn(),
+}));
+
+const pkg = { name: 'test', version: '1.0.0' };
+
+afterEach(() => jest.clearAllMocks());
+
+const defaultArgs = {
+  pkg,
+  shouldNotifyInNpmScript: true,
+  alwaysRun: true,
+};
+
+test('it should not trigger update for same version', async () => {
+  const newVersion = await hasNewVersion(defaultArgs);
+
+  expect(newVersion).toBe(false);
+});
+
+test('it should trigger update for patch version bump', async () => {
+  (getDistVersion as jest.Mock).mockReturnValue('1.0.1');
+
+  const newVersion = await hasNewVersion(defaultArgs);
+
+  expect(newVersion).toBe('1.0.1');
+});
+
+test('it should trigger update for minor version bump', async () => {
+  (getDistVersion as jest.Mock).mockReturnValue('1.1.0');
+
+  const newVersion = await hasNewVersion(defaultArgs);
+
+  expect(newVersion).toBe('1.1.0');
+});
+
+test('it should trigger update for major version bump', async () => {
+  (getDistVersion as jest.Mock).mockReturnValue('2.0.0');
+
+  const newVersion = await hasNewVersion(defaultArgs);
+
+  expect(newVersion).toBe('2.0.0');
+});
+
+test('it should not trigger update if version is lower', async () => {
+  (getDistVersion as jest.Mock).mockReturnValue('0.0.9');
+
+  const newVersion = await hasNewVersion(defaultArgs);
+
+  expect(newVersion).toBe(false);
+});
+
+it('should trigger update check if last update older than config', async () => {
+  const TWO_WEEKS = new Date().getTime() - 1000 * 60 * 60 * 24 * 14;
+  (getLastUpdate as jest.Mock).mockReturnValue(TWO_WEEKS);
+  const newVersion = await hasNewVersion({
+    pkg,
+    shouldNotifyInNpmScript: true,
+  });
+
+  expect(newVersion).toBe(false);
+  expect(getDistVersion).toHaveBeenCalled();
+});
+
+it('should not trigger update check if last update is too recent', async () => {
+  const TWELVE_HOURS = new Date().getTime() - 1000 * 60 * 60 * 12;
+  (getLastUpdate as jest.Mock).mockReturnValue(TWELVE_HOURS);
+  const newVersion = await hasNewVersion({
+    pkg,
+    shouldNotifyInNpmScript: true,
+  });
+
+  expect(newVersion).toBe(false);
+  expect(getDistVersion).not.toHaveBeenCalled();
+});

node_modules/simple-update-notifier/src/hasNewVersion.ts

@@ -0,0 +1,40 @@
+import semver from 'semver';
+import { createConfigDir, getLastUpdate, saveLastUpdate } from './cache';
+import getDistVersion from './getDistVersion';
+import { IUpdate } from './types';
+
+const hasNewVersion = async ({
+  pkg,
+  updateCheckInterval = 1000 * 60 * 60 * 24,
+  distTag = 'latest',
+  alwaysRun,
+  debug,
+}: IUpdate) => {
+  createConfigDir();
+  const lastUpdateCheck = getLastUpdate(pkg.name);
+  if (
+    alwaysRun ||
+    !lastUpdateCheck ||
+    lastUpdateCheck < new Date().getTime() - updateCheckInterval
+  ) {
+    const latestVersion = await getDistVersion(pkg.name, distTag);
+    saveLastUpdate(pkg.name);
+    if (semver.gt(latestVersion, pkg.version)) {
+      return latestVersion;
+    } else if (debug) {
+      console.error(
+        `Latest version (${latestVersion}) not newer than current version (${pkg.version})`
+      );
+    }
+  } else if (debug) {
+    console.error(
+      `Too recent to check for a new update. simpleUpdateNotifier() interval set to ${updateCheckInterval}ms but only ${
+        new Date().getTime() - lastUpdateCheck
+      }ms since last check.`
+    );
+  }
+
+  return false;
+};
+
+export default hasNewVersion;

node_modules/simple-update-notifier/src/index.spec.ts

@@ -0,0 +1,27 @@
+import simpleUpdateNotifier from '.';
+import hasNewVersion from './hasNewVersion';
+
+const consoleSpy = jest.spyOn(console, 'error');
+
+jest.mock('./hasNewVersion', () => jest.fn().mockResolvedValue('2.0.0'));
+
+beforeEach(jest.clearAllMocks);
+
+test('it logs message if update is available', async () => {
+  await simpleUpdateNotifier({
+    pkg: { name: 'test', version: '1.0.0' },
+    alwaysRun: true,
+  });
+
+  expect(consoleSpy).toHaveBeenCalledTimes(1);
+});
+
+test('it does not log message if update is not available', async () => {
+  (hasNewVersion as jest.Mock).mockResolvedValue(false);
+  await simpleUpdateNotifier({
+    pkg: { name: 'test', version: '2.0.0' },
+    alwaysRun: true,
+  });
+
+  expect(consoleSpy).toHaveBeenCalledTimes(0);
+});

node_modules/simple-update-notifier/src/index.ts

@@ -0,0 +1,34 @@
+import isNpmOrYarn from './isNpmOrYarn';
+import hasNewVersion from './hasNewVersion';
+import { IUpdate } from './types';
+import borderedText from './borderedText';
+
+const simpleUpdateNotifier = async (args: IUpdate) => {
+  if (
+    !args.alwaysRun &&
+    (!process.stdout.isTTY || (isNpmOrYarn && !args.shouldNotifyInNpmScript))
+  ) {
+    if (args.debug) {
+      console.error('Opting out of running simpleUpdateNotifier()');
+    }
+    return;
+  }
+
+  try {
+    const latestVersion = await hasNewVersion(args);
+    if (latestVersion) {
+      console.error(
+        borderedText(`New version of ${args.pkg.name} available!
+Current Version: ${args.pkg.version}
+Latest Version: ${latestVersion}`)
+      );
+    }
+  } catch (err) {
+    // Catch any network errors or cache writing errors so module doesn't cause a crash
+    if (args.debug && err instanceof Error) {
+      console.error('Unexpected error in simpleUpdateNotifier():', err);
+    }
+  }
+};
+
+export default simpleUpdateNotifier;

node_modules/simple-update-notifier/src/isNpmOrYarn.ts

@@ -0,0 +1,12 @@
+import process from 'process';
+
+const packageJson = process.env.npm_package_json;
+const userAgent = process.env.npm_config_user_agent;
+const isNpm6 = Boolean(userAgent && userAgent.startsWith('npm'));
+const isNpm7 = Boolean(packageJson && packageJson.endsWith('package.json'));
+
+const isNpm = isNpm6 || isNpm7;
+const isYarn = Boolean(userAgent && userAgent.startsWith('yarn'));
+const isNpmOrYarn = isNpm || isYarn;
+
+export default isNpmOrYarn;

node_modules/simple-update-notifier/src/types.ts

@@ -0,0 +1,8 @@
+export interface IUpdate {
+  pkg: { name: string; version: string };
+  updateCheckInterval?: number;
+  shouldNotifyInNpmScript?: boolean;
+  distTag?: string;
+  alwaysRun?: boolean;
+  debug?: boolean;
+}