From f3bdd15ab38df03fa2437ef4eb608cbd64d6ff32 Mon Sep 17 00:00:00 2001
From: Patrik Oldsberg <poldsberg@gmail.com>
Date: Mon, 15 Aug 2022 13:50:45 +0200
Subject: [PATCH] catalog-node: allow multiple providers to be passed to
 extension point
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Co-authored-by: Fredrik Adelöw <freben@gmail.com>
Co-authored-by: Johan Haals <johan.haals@gmail.com>
Co-authored-by: blam <ben@blam.sh>
Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
---
 plugins/catalog-backend/src/service/CatalogPlugin.ts | 12 ++++++++----
 plugins/catalog-node/api-report.md                   |  8 ++++++--
 plugins/catalog-node/src/extensions.ts               |  8 ++++++--
 3 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/plugins/catalog-backend/src/service/CatalogPlugin.ts b/plugins/catalog-backend/src/service/CatalogPlugin.ts
index ed356df5a2..64e1e52494 100644
--- a/plugins/catalog-backend/src/service/CatalogPlugin.ts
+++ b/plugins/catalog-backend/src/service/CatalogPlugin.ts
@@ -35,12 +35,16 @@ class CatalogExtensionPointImpl implements CatalogProcessingExtensionPoint {
   #processors = new Array<CatalogProcessor>();
   #entityProviders = new Array<EntityProvider>();
 
-  addProcessor(processor: CatalogProcessor): void {
-    this.#processors.push(processor);
+  addProcessor(
+    ...processors: Array<CatalogProcessor | Array<CatalogProcessor>>
+  ): void {
+    this.#processors.push(...processors.flat());
   }
 
-  addEntityProvider(provider: EntityProvider): void {
-    this.#entityProviders.push(provider);
+  addEntityProvider(
+    ...providers: Array<EntityProvider | Array<EntityProvider>>
+  ): void {
+    this.#entityProviders.push(...providers.flat());
   }
 
   get processors() {
diff --git a/plugins/catalog-node/api-report.md b/plugins/catalog-node/api-report.md
index 46e3efef99..26617910b9 100644
--- a/plugins/catalog-node/api-report.md
+++ b/plugins/catalog-node/api-report.md
@@ -13,9 +13,13 @@ import { JsonValue } from '@backstage/types';
 // @alpha (undocumented)
 export interface CatalogProcessingExtensionPoint {
   // (undocumented)
-  addEntityProvider(provider: EntityProvider): void;
+  addEntityProvider(
+    ...providers: Array<EntityProvider | Array<EntityProvider>>
+  ): void;
   // (undocumented)
-  addProcessor(processor: CatalogProcessor): void;
+  addProcessor(
+    ...processors: Array<CatalogProcessor | Array<CatalogProcessor>>
+  ): void;
 }
 
 // @alpha (undocumented)
diff --git a/plugins/catalog-node/src/extensions.ts b/plugins/catalog-node/src/extensions.ts
index 80fbd7630f..8dd9d8579a 100644
--- a/plugins/catalog-node/src/extensions.ts
+++ b/plugins/catalog-node/src/extensions.ts
@@ -21,8 +21,12 @@ import { CatalogProcessor } from './api/processor';
  * @alpha
  */
 export interface CatalogProcessingExtensionPoint {
-  addProcessor(processor: CatalogProcessor): void;
-  addEntityProvider(provider: EntityProvider): void;
+  addProcessor(
+    ...processors: Array<CatalogProcessor | Array<CatalogProcessor>>
+  ): void;
+  addEntityProvider(
+    ...providers: Array<EntityProvider | Array<EntityProvider>>
+  ): void;
 }
 
 /**