feat(manager/gitlabci): support registry aliases (#28607)

Co-authored-by: Sebastian Poxhofer <[email protected]>

lib/modules/manager/gitlabci/extract.spec.ts

@@ -354,6 +354,69 @@ describe('modules/manager/gitlabci/extract', () => {
       expect(extractFromJob({ image: 'image:test' })).toEqual(expectedRes);
     });
 
+    it('extracts component references via registry aliases', () => {
+      const registryAliases = {
+        $CI_SERVER_HOST: 'gitlab.example.com',
+      };
+      const content = codeBlock`
+        include:
+          - component: $CI_SERVER_HOST/an-org/a-project/[email protected]
+            inputs:
+              stage: build
+          - component: $CI_SERVER_HOST/an-org/a-subgroup/a-project/a-component@e3262fdd0914fa823210cdb79a8c421e2cef79d8
+          - component: $CI_SERVER_HOST/an-org/a-subgroup/another-project/a-component@main
+          - component: $CI_SERVER_HOST/another-org/a-project/a-component@~latest
+            inputs:
+              stage: test
+          - component: $CI_SERVER_HOST/malformed-component-reference
+          - component:
+              malformed: true
+          - component: $CI_SERVER_HOST/an-org/[email protected]
+          - component: other-gitlab.example.com/an-org/a-project/[email protected]
+      `;
+      const res = extractPackageFile(content, '', {
+        registryAliases,
+      });
+      expect(res?.deps).toMatchObject([
+        {
+          currentValue: '1.0',
+          datasource: 'gitlab-tags',
+          depName: 'an-org/a-project',
+          depType: 'repository',
+          registryUrls: ['https://gitlab.example.com'],
+        },
+        {
+          currentValue: 'e3262fdd0914fa823210cdb79a8c421e2cef79d8',
+          datasource: 'gitlab-tags',
+          depName: 'an-org/a-subgroup/a-project',
+          depType: 'repository',
+          registryUrls: ['https://gitlab.example.com'],
+        },
+        {
+          currentValue: 'main',
+          datasource: 'gitlab-tags',
+          depName: 'an-org/a-subgroup/another-project',
+          depType: 'repository',
+          registryUrls: ['https://gitlab.example.com'],
+        },
+        {
+          currentValue: '~latest',
+          datasource: 'gitlab-tags',
+          depName: 'another-org/a-project',
+          depType: 'repository',
+          registryUrls: ['https://gitlab.example.com'],
+          skipReason: 'unsupported-version',
+        },
+        {
+          currentValue: '1.0',
+          datasource: 'gitlab-tags',
+          depName: 'an-org/a-project',
+          depType: 'repository',
+          registryUrls: ['https://other-gitlab.example.com'],
+        },
+      ]);
+    });
+
     it('extracts component references', () => {
       const content = codeBlock`
         include:

lib/modules/manager/gitlabci/extract.ts

@@ -120,6 +120,7 @@ function getAllIncludeComponents(
 
 function extractDepFromIncludeComponent(
   includeComponent: GitlabIncludeComponent,
+  registryAliases?: Record<string, string>,
 ): PackageDependency | null {
   const componentReference = componentReferenceRegex.exec(
     includeComponent.component,
@@ -139,6 +140,10 @@ function extractDepFromIncludeComponent(
     );
     return null;
   }
+  const aliasValue = registryAliases?.[componentReference.fqdn];
+  if (aliasValue) {
+    componentReference.fqdn = aliasValue;
+  }
 
   const dep: PackageDependency = {
     datasource: GitlabTagsDatasource.id,
@@ -209,7 +214,10 @@ export function extractPackageFile(
 
       const includedComponents = getAllIncludeComponents(doc);
       for (const includedComponent of includedComponents) {
-        const dep = extractDepFromIncludeComponent(includedComponent);
+        const dep = extractDepFromIncludeComponent(
+          includedComponent,
+          config.registryAliases,
+        );
         if (dep) {
           deps.push(dep);
         }