fix(server): avoid repeatly register providers (#5265)

packages/backend/server/src/config/def.ts

@@ -16,6 +16,8 @@ export enum ExternalAccount {
   firebase = 'firebase',
 }
 
+export type ServerFlavor = 'allinone' | 'graphql' | 'sync' | 'selfhosted';
+
 type EnvConfigType = 'string' | 'int' | 'float' | 'boolean';
 type ConfigPaths = LeafPaths<
   Omit<
@@ -345,6 +347,11 @@ export interface AFFiNEConfig {
 
   doc: {
     manager: {
+      /**
+       * Whether auto merge updates into doc snapshot.
+       */
+      enableUpdateAutoMerging: boolean;
+
       /**
        * How often the [DocManager] will start a new turn of merging pending updates into doc snapshot.
        *

packages/backend/server/src/config/default.ts

@@ -7,9 +7,12 @@ import { join } from 'node:path';
 import parse from 'parse-duration';
 
 import pkg from '../../package.json' assert { type: 'json' };
-import type { AFFiNEConfig } from './def';
+import type { AFFiNEConfig, ServerFlavor } from './def';
 import { applyEnvToConfig } from './env';
 
+export const SERVER_FLAVOR = (process.env.SERVER_FLAVOR ??
+  'allinone') as ServerFlavor;
+
 // Don't use this in production
 export const examplePrivateKey = `-----BEGIN EC PRIVATE KEY-----
 MHcCAQEEIEtyAJLIULkphVhqXqxk4Nr8Ggty3XLwUJWBxzAWCWTMoAoGCCqGSM49
@@ -206,6 +209,7 @@ export const getDefaultAFFiNEConfig: () => AFFiNEConfig = () => {
     },
     doc: {
       manager: {
+        enableUpdateAutoMerging: SERVER_FLAVOR !== 'sync',
         updatePollInterval: 3000,
         experimentalMergeWithJwstCodec: false,
       },

packages/backend/server/src/config/index.ts

@@ -73,3 +73,4 @@ export class ConfigModule {
 }
 
 export type { AFFiNEConfig } from './def';
+export { SERVER_FLAVOR } from './default';