Add fail-on-cache-miss option (#1036)

* Add fail-on-cache-miss option

* Small improvements

* Changes after rebase

* Update description

* Only fail if no cache entry is found

* Code review

* Update readme

* Add additional test case

* Bump version + changelog

* Update package-lock.json

* Update Readme

src/restoreImpl.ts

@@ -34,6 +34,7 @@ async function restoreImpl(
         const enableCrossOsArchive = utils.getInputAsBool(
             Inputs.EnableCrossOsArchive
         );
+        const failOnCacheMiss = utils.getInputAsBool(Inputs.FailOnCacheMiss);
 
         const cacheKey = await cache.restoreCache(
             cachePaths,
@@ -44,6 +45,11 @@ async function restoreImpl(
         );
 
         if (!cacheKey) {
+            if (failOnCacheMiss) {
+                throw new Error(
+                    `Failed to restore cache entry. Exiting as fail-on-cache-miss is set. Input key: ${primaryKey}`
+                );
+            }
             core.info(
                 `Cache not found for input keys: ${[
                     primaryKey,