feat(catalog-backend-module-gitlab): Added option to skip forked repos

Signed-off-by: alessandro <alessandro.manno@facile.it>

.changeset/silent-garlics-drum.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend-module-gitlab': minor
+---
+
+Added option to skip forked repos

docs/integrations/gitlab/discovery.md

@@ -109,3 +109,5 @@ export default async function createPlugin(
 ```
 
 If you don't want create location object if file with component definition do not exists in project, you can set the `skipReposWithoutExactFileMatch` option. That can reduce count of request to gitlab with 404 status code.
+
+If you don't want to create location object if the project is a fork, you can set the `skipForkedRepos` option.

plugins/catalog-backend-module-gitlab/src/GitLabDiscoveryProcessor.ts

@@ -42,10 +42,11 @@ export class GitLabDiscoveryProcessor implements CatalogProcessor {
   private readonly logger: Logger;
   private readonly cache: CacheClient;
   private readonly skipReposWithoutExactFileMatch: boolean;
+  private readonly skipForkedRepos: boolean;
 
   static fromConfig(
     config: Config,
-    options: { logger: Logger; skipReposWithoutExactFileMatch?: boolean },
+    options: { logger: Logger; skipReposWithoutExactFileMatch?: boolean; skipForkedRepos?: boolean },
   ): GitLabDiscoveryProcessor {
     const integrations = ScmIntegrations.fromConfig(config);
     const pluginCache =
@@ -63,12 +64,14 @@ export class GitLabDiscoveryProcessor implements CatalogProcessor {
     pluginCache: PluginCacheManager;
     logger: Logger;
     skipReposWithoutExactFileMatch?: boolean;
+    skipForkedRepos?: boolean;
   }) {
     this.integrations = options.integrations;
     this.cache = options.pluginCache.getClient();
     this.logger = options.logger;
     this.skipReposWithoutExactFileMatch =
       options.skipReposWithoutExactFileMatch || false;
+    this.skipForkedRepos = options.skipForkedRepos || false;
   }
 
   getProcessorName(): string {
@@ -140,6 +143,10 @@ export class GitLabDiscoveryProcessor implements CatalogProcessor {
         }
       }
 
+      if (this.skipForkedRepos && project.hasOwnProperty('forked_from_project')) {
+        continue;
+      }
+
       res.matches.push(project);
     }
 

plugins/catalog-backend-module-gitlab/src/lib/types.ts

@@ -22,6 +22,10 @@ export type GitlabGroupDescription = {
   projects: GitLabProject[];
 };
 
+export type GitlabProjectForkedFrom = {
+  id: number
+}
+
 export type GitLabProject = {
   id: number;
   default_branch?: string;
@@ -29,6 +33,7 @@ export type GitLabProject = {
   last_activity_at: string;
   web_url: string;
   path_with_namespace?: string;
+  forked_from_project?: GitlabProjectForkedFrom;
 };
 
 export type GitLabUser = {