[server] Don't fetch the repository config a second time when starting incremental prebuilds

Author: jankeromnes

components/server/ee/src/prebuilds/incremental-prebuilds-service.ts

@@ -68,12 +68,15 @@ export class IncrementalPrebuildsService {
         context: CommitContext,
         history: WithCommitHistory,
         user: User,
+        config?: WorkspaceConfig,
     ): Promise<PrebuiltWorkspace | undefined> {
         if (!history.commitHistory || history.commitHistory.length < 1) {
             return;
         }
 
-        const { config } = await this.configProvider.fetchConfig({}, user, context);
+        if (!config) {
+            config = (await this.configProvider.fetchConfig({}, user, context)).config;
+        }
         const imageSource = await this.imageSourceProvider.getImageSource({}, user, context, config);
 
         // Note: This query returns only not-garbage-collected prebuilds in order to reduce cardinality

components/server/ee/src/workspace/workspace-factory.ts

@@ -123,6 +123,7 @@ export class WorkspaceFactoryEE extends WorkspaceFactory {
                 commitContext,
                 context,
                 user,
+                config,
             );
             if (recentPrebuild) {
                 const loggedContext = filterForLogging(context);