fix(config): RENOVATE_X_EAGER_GLOBAL_EXTENDS

docs/usage/self-hosted-experimental.md

@@ -93,6 +93,10 @@ If set to any value, Renovate will use the Docker Hub API (`https://hub.docker.c
 If set to an integer, Renovate will use this as max page number for docker tags lookup on docker registries, instead of the default 20 pages.
 This is useful for registries which ignores the `n` parameter in the query string and only return 50 tags per page.
 
+## `RENOVATE_X_EAGER_GLOBAL_EXTENDS`
+
+Resolve and merge `globalExtends` presets before other global config, instead of after.
+
 ## `RENOVATE_X_EXEC_GPID_HANDLE`
 
 If set, Renovate will terminate the whole process group of a terminated child process spawned by Renovate.

lib/workers/global/index.spec.ts

@@ -45,6 +45,7 @@ describe('workers/global/index', () => {
     initPlatform.mockImplementation((input) => Promise.resolve(input));
     delete process.env.AWS_SECRET_ACCESS_KEY;
     delete process.env.AWS_SESSION_TOKEN;
+    delete process.env.RENOVATE_X_EAGER_GLOBAL_EXTENDS;
   });
 
   describe('getRepositoryConfig', () => {
@@ -87,6 +88,21 @@ describe('workers/global/index', () => {
     expect(addSecretForSanitizing).toHaveBeenCalledTimes(2);
   });
 
+  it('resolves global presets first', async () => {
+    process.env.RENOVATE_X_EAGER_GLOBAL_EXTENDS = 'true';
+    parseConfigs.mockResolvedValueOnce({
+      repositories: [],
+      globalExtends: [':pinVersions'],
+      hostRules: [{ matchHost: 'github.com', token: 'abc123' }],
+    });
+    presets.resolveConfigPresets.mockResolvedValueOnce({});
+    await expect(globalWorker.start()).resolves.toBe(0);
+    expect(presets.resolveConfigPresets).toHaveBeenCalledWith({
+      extends: [':pinVersions'],
+    });
+    expect(parseConfigs).toHaveBeenCalledTimes(1);
+  });
+
   it('resolves global presets immediately', async () => {
     parseConfigs.mockResolvedValueOnce({
       repositories: [],

lib/workers/global/index.ts

@@ -144,10 +144,17 @@ export async function start(): Promise<number> {
       config = await getGlobalConfig();
       if (config?.globalExtends) {
         // resolve global presets immediately
-        config = mergeChildConfig(
-          config,
-          await resolveGlobalExtends(config.globalExtends),
-        );
+        if (process.env.RENOVATE_X_EAGER_GLOBAL_EXTENDS) {
+          config = mergeChildConfig(
+            await resolveGlobalExtends(config.globalExtends),
+            config,
+          );
+        } else {
+          config = mergeChildConfig(
+            config,
+            await resolveGlobalExtends(config.globalExtends),
+          );
+        }
       }
       // initialize all submodules
       config = await globalInitialize(config);