Add update notifier

package.json

@@ -41,6 +41,7 @@
     "@types/jest": "^24.0.18",
     "@types/jsonwebtoken": "^8.3.4",
     "@types/node": "^12.7.5",
+    "@types/update-notifier": "^2.5.0",
     "@types/url-join": "^4.0.0",
     "@types/winston": "^2.4.4",
     "@typescript-eslint/eslint-plugin": "^2.3.0",
@@ -68,6 +69,7 @@
     "mask-json": "^1.0.3",
     "strip-ansi": "^6.0.0",
     "ts-dedent": "^1.1.0",
+    "update-notifier": "^4.0.0",
     "url-join": "^4.0.1",
     "winston": "^3.2.1"
   }

src/app.ts

@@ -1,15 +1,24 @@
 #!/usr/bin/env node
 import commander from "commander";
+import updateNotifier from "update-notifier";
 
 import { defaults } from "./config/defaults";
-import { bin, version } from "../package.json";
+import { bin, name, version } from "../package.json";
 import { connect, ConnectOptions } from "./commands/connect";
 import { login } from "./commands/login";
 import { commandRunner } from "./util/command";
 import { activateVerbose } from "./util/env";
 import logger from "./util/logger";
 
-const program = new commander.Command();
+function beforeCommand(): void {
+    const un = updateNotifier({
+        pkg: {
+            name,
+            version
+        }
+    });
+    un.notify();
+}
 
 function createCollector(): (arg1: string, arg2: string[]) => string[] {
     let cleared = false;
@@ -27,6 +36,8 @@ function createCollector(): (arg1: string, arg2: string[]) => string[] {
     return collectionValue;
 }
 
+const program = new commander.Command();
+
 program
     .name(Object.keys(bin)[0])
     .version(version);
@@ -67,4 +78,5 @@ program.on("command:*", () => {
     program.outputHelp();
 });
 
+beforeCommand();
 program.parseAsync(process.argv);