Only perform post-restore and pre-save cache actions when required

src/cache-utils.ts

@@ -109,6 +109,9 @@ export abstract class AbstractCache {
         core.info(
             `${this.cacheDescription} restored from cache key: ${cacheResult}`
         )
+
+        await this.afterRestore()
+
         return
     }
 
@@ -134,6 +137,8 @@ export abstract class AbstractCache {
         }
     }
 
+    protected async afterRestore(): Promise<void> {}
+
     async save(): Promise<void> {
         if (!this.cacheOutputExists()) {
             this.debug(`No ${this.cacheDescription} to cache.`)
@@ -157,6 +162,8 @@ export abstract class AbstractCache {
             return
         }
 
+        await this.beforeSave()
+
         core.info(
             `Caching ${this.cacheDescription} with cache key: ${cacheKey}`
         )
@@ -166,6 +173,8 @@ export abstract class AbstractCache {
         return
     }
 
+    protected async beforeSave(): Promise<void> {}
+
     protected async saveCache(
         cachePath: string[],
         cacheKey: string