feat(techdocs): Allow to pass options to GCS publisher (#26836)

* feat(techdocs): Allow to pass options to GCS publisher

Signed-off-by: Adrian Kosinski <adrian.kosinski@allegro.com>

---------

Signed-off-by: Adrian Kosinski <adrian.kosinski@allegro.com>

plugins/techdocs-backend/src/plugin.ts

@@ -29,6 +29,7 @@ import {
   Preparers,
   Publisher,
   PublisherBase,
+  PublisherSettings,
   PublisherType,
   RemoteProtocol,
   techdocsBuildsExtensionPoint,
@@ -89,6 +90,7 @@ export const techdocsPlugin = createBackendPlugin({
     });
 
     let customTechdocsPublisher: PublisherBase | undefined;
+    const publisherSettings: PublisherSettings = {};
     env.registerExtensionPoint(techdocsPublisherExtensionPoint, {
       registerPublisher(type: PublisherType, publisher: PublisherBase) {
         if (customTechdocsPublisher) {
@@ -96,6 +98,12 @@ export const techdocsPlugin = createBackendPlugin({
         }
         customTechdocsPublisher = publisher;
       },
+      registerPublisherSettings<T extends keyof PublisherSettings>(
+        publisher: T,
+        settings: PublisherSettings[T],
+      ) {
+        publisherSettings[publisher] = settings;
+      },
     });
 
     env.registerInit({
@@ -144,6 +152,7 @@ export const techdocsPlugin = createBackendPlugin({
           logger: winstonLogger,
           discovery: discovery,
           customPublisher: customTechdocsPublisher,
+          publisherSettings,
         });
 
         // checks if the publisher is working and logs the result