[dashboard] Refresh example repositories featured in empty workspaces list

Author: jankeromnes

components/gitpod-db/src/typeorm/migration/1612448906950-ExampleRepositories.ts

@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) 2021 Gitpod GmbH. All rights reserved.
+ * Licensed under the GNU Affero General Public License (AGPL).
+ * See License-AGPL.txt in the project root for license information.
+ */
+import {MigrationInterface, QueryRunner} from "typeorm";
+
+export class ExampleRepositories1612448906950 implements MigrationInterface {
+
+    public async up(queryRunner: QueryRunner): Promise<any> {
+        const oldEntries = [
+            { url: 'https://github.com/gitpod-io/django-locallibrary-tutorial', description: '**Python** - Tutorial "Local Library" website written in Django', priority: 10 },
+            { url: 'https://github.com/gitpod-io/gs-spring-boot.git', description: '**Java** - Building an Application with Spring Boot', priority: 9 },
+            { url: 'https://github.com/gitpod-io/NextSimpleStarter.git', description: '**JavaScript** - Simple PWA boilerplate with Next.js and Redux', priority: 8 },
+            { url: 'https://github.com/gitpod-io/go-gin-app.git', description: '**Go** - A simple web app implemented in Go and Gin', priority: 7 },
+            { url: 'https://github.com/gitpod-io/rails_sample_app', description: '**Ruby on Rails** - Tutorial sample application', priority: 6 },
+            { url: 'https://github.com/gitpod-io/symfony-demo.git', description: '**PHP** - Symfony Demo Application', priority: 5 },
+            { url: 'https://github.com/theia-ide/theia.git', description: '**Typescript** - Deep dive into Gitpod\\\'s open-source IDE, Theia.', priority: 4 }
+        ];
+        const newEntries = [
+            { url: 'https://github.com/gitpod-io/sveltejs-template', description: '**JavaScript** – A project template for Svelte applications', priority: 90 },
+            { url: 'https://github.com/eclipse-theia/theia', description: '**TypeScript** – A cloud & desktop IDE framework', priority: 80 },
+            { url: 'https://github.com/breatheco-de/python-flask-api-tutorial', description: '**Python** – An interactive tutorial about Python Flask', priority: 70 },
+            { url: 'https://github.com/prometheus/prometheus', description: '**Go** – A monitoring system and time series database', priority: 60 },
+            { url: 'https://github.com/nushell/nushell', description: '**Rust** – A terminal emulator written in Rust', priority: 50 },
+            { url: 'https://github.com/gitpod-io/spring-petclinic', description: '**Java** – A Spring sample web application', priority: 40 },
+            { url: 'https://github.com/gitpod-io/ruby-on-rails', description: '**Ruby** – A Rails example with PostgreSQL database', priority: 30 },
+            { url: 'https://github.com/gitpod-io/dotnetcore', description: '**C#** – A simple .NET Core application example', priority: 20 },
+            { url: 'https://github.com/symfony/demo', description: '**PHP** – A Symfony demo application', priority: 10 },
+        ]
+        const currentEntries = await queryRunner.query(`SELECT * FROM d_b_repository_white_list ORDER BY priority DESC`);
+        if (JSON.stringify(currentEntries, null, 2) === JSON.stringify(oldEntries, null, 2)) {
+            await queryRunner.query("DELETE FROM d_b_repository_white_list");
+            await Promise.all(newEntries.map(e => queryRunner.query(`INSERT IGNORE INTO d_b_repository_white_list (url, description, priority) VALUES (?, ?, ?)`, [e.url, e.description, e.priority])));
+        }
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<any> {
+    }
+
+}

components/gitpod-db/src/typeorm/migration/README.md

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+# TypeORM DB Migrations
+
+To create a new migration file, run this command in the `gitpod-db` component directory:
+
+```
+yarn typeorm migrations:create -n NameOfYourMigration
+```
+
+Then, simply populate the `up` and `down` methods in the generated migration file.
+(Hint: You can look at other migration files for inspiration.)