validate first user email during installation (#11682)

api/src/cli/commands/init/index.ts

@@ -4,6 +4,7 @@ import inquirer from 'inquirer';
 import { Knex } from 'knex';
 import ora from 'ora';
 import { v4 as uuidV4 } from 'uuid';
+import Joi from 'joi';
 import runMigrations from '../../../database/migrations/run';
 import runSeed from '../../../database/seeds/run';
 import createDBConnection, { Credentials } from '../../utils/create-db-connection';
@@ -75,6 +76,12 @@ export default async function init(): Promise<void> {
 			name: 'email',
 			message: 'Email',
 			default: 'admin@example.com',
+			validate: (input: string) => {
+				const emailSchema = Joi.string().email().required();
+				const { error } = emailSchema.validate(input);
+				if (error) throw new Error('The email entered is not a valid email address!');
+				return true;
+			},
 		},
 		{
 			type: 'password',