fix(repository): Move backend code into subdirectory

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

backend/src/main.ts

@@ -0,0 +1,50 @@
+/*
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { LogLevel } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { NestFactory } from '@nestjs/core';
+import { NestExpressApplication } from '@nestjs/platform-express';
+
+import { setupApp } from './app-init';
+import { AppModule } from './app.module';
+import { AppConfig } from './config/app.config';
+import { AuthConfig } from './config/auth.config';
+import { MediaConfig } from './config/media.config';
+import { ConsoleLoggerService } from './logger/console-logger.service';
+
+async function bootstrap(): Promise<void> {
+  // Initialize AppModule
+  const app = await NestFactory.create<NestExpressApplication>(AppModule, {
+    logger: ['error', 'warn', 'log'] as LogLevel[],
+    bufferLogs: true,
+  });
+
+  // Set up our custom logger
+  const logger = await app.resolve(ConsoleLoggerService);
+  logger.log('Switching logger', 'AppBootstrap');
+  app.useLogger(logger);
+
+  // Initialize config and abort if we don't have a valid config
+  const configService = app.get(ConfigService);
+  const appConfig = configService.get<AppConfig>('appConfig');
+  const authConfig = configService.get<AuthConfig>('authConfig');
+  const mediaConfig = configService.get<MediaConfig>('mediaConfig');
+
+  if (!appConfig || !authConfig || !mediaConfig) {
+    logger.error('Could not initialize config, aborting.', 'AppBootstrap');
+    process.exit(1);
+  }
+
+  // Call common setup function which handles the rest
+  // Setup code must be added there!
+  await setupApp(app, appConfig, authConfig, mediaConfig, logger);
+
+  // Start the server
+  await app.listen(appConfig.port);
+  logger.log(`Listening on port ${appConfig.port}`, 'AppBootstrap');
+}
+
+void bootstrap();