fix(cli-core): add .at() polyfill for nodejs v14

packages/cli-core/src/utils/patchCommander.ts

@@ -1,6 +1,24 @@
 import chalk from "chalk";
 import {Command} from "commander";
 
+function at(n: number) {
+  // ToInteger() abstract op
+  n = Math.trunc(n) || 0;
+  // Allow negative indexing from the end
+  if (n < 0) n += this.length;
+  // OOB access is guaranteed to return undefined
+  if (n < 0 || n >= this.length) return undefined;
+  // Otherwise, this is just normal property access
+  return this[n];
+}
+
+const TypedArray = Reflect.getPrototypeOf(Int8Array);
+for (const C of [Array, String, TypedArray]) {
+  if (C) {
+    Object.defineProperty((C as any).prototype, "at", {value: at, writable: true, enumerable: false, configurable: true});
+  }
+}
+
 const helpInformation = Command.prototype.helpInformation;
 
 function colorizeSection(str: any, section: string) {

packages/cli-plugin-typeorm/test/integrations/generate/data/TestDatasource.ts.txt

@@ -19,7 +19,7 @@ registerProvider<DataSource>({
   async useAsyncFactory(logger: Logger) {
     await TestDataSource.initialize();
 
-    logger.info('Connected with typeorm to database: Test');
+    logger.info("Connected with typeorm to database: Test");
 
     return TestDataSource;
   },

packages/cli-plugin-typeorm/test/integrations/generate/generate.controller.integration.spec.ts

@@ -55,7 +55,7 @@ describe("Generate DataSource", () => {
 
     const datasource = FakeCliFs.entries.get("project-name/src/datasources/TestDatasource.ts");
 
-    expect(datasource).toEqual(readFile("data/TestDatasource.ts.txt", datasource!));
+    expect(datasource).toEqual(readFile("data/TestDatasource.ts.txt", datasource!, false));
 
     const dockerCompose = FakeCliFs.entries.get("project-name/docker-compose.yml");
     expect(dockerCompose).toEqual(readFile("data/docker-compose.yml.txt", dockerCompose!, false));