Add lookup-only option (#1041)

* Add new actions/cache version (with dryRun support)

* Add dry-run option

* Changes after rebase

* Update readme

* Rename option to lookup-only

* Update test name

* Update package.json + changelog

* Update README

* Update custom package version

* Update custom package version

* Update @actions/cache to 3.2.0

* Code review

* Update log statement

* Move test case

---------

Co-authored-by: Sankalp Kotewar <98868223+kotewar@users.noreply.github.com>

src/constants.ts

@@ -4,7 +4,8 @@ export enum Inputs {
     RestoreKeys = "restore-keys", // Input for cache, restore action
     UploadChunkSize = "upload-chunk-size", // Input for cache, save action
     EnableCrossOsArchive = "enableCrossOsArchive", // Input for cache, restore, save action
-    FailOnCacheMiss = "fail-on-cache-miss" // Input for cache, restore action
+    FailOnCacheMiss = "fail-on-cache-miss", // Input for cache, restore action
+    LookupOnly = "lookup-only" // Input for cache, restore action
 }
 
 export enum Outputs {

src/restoreImpl.ts

@@ -35,12 +35,13 @@ async function restoreImpl(
             Inputs.EnableCrossOsArchive
         );
         const failOnCacheMiss = utils.getInputAsBool(Inputs.FailOnCacheMiss);
+        const lookupOnly = utils.getInputAsBool(Inputs.LookupOnly);
 
         const cacheKey = await cache.restoreCache(
             cachePaths,
             primaryKey,
             restoreKeys,
-            {},
+            { lookupOnly: lookupOnly },
             enableCrossOsArchive
         );
 
@@ -69,7 +70,11 @@ async function restoreImpl(
         );
 
         core.setOutput(Outputs.CacheHit, isExactKeyMatch.toString());
-        core.info(`Cache restored from key: ${cacheKey}`);
+        if (lookupOnly) {
+            core.info(`Cache found and can be restored from key: ${cacheKey}`);
+        } else {
+            core.info(`Cache restored from key: ${cacheKey}`);
+        }
 
         return cacheKey;
     } catch (error: unknown) {

src/utils/testUtils.ts

@@ -15,6 +15,7 @@ interface CacheInput {
     restoreKeys?: string[];
     enableCrossOsArchive?: boolean;
     failOnCacheMiss?: boolean;
+    lookupOnly?: boolean;
 }
 
 export function setInputs(input: CacheInput): void {
@@ -29,6 +30,8 @@ export function setInputs(input: CacheInput): void {
         );
     input.failOnCacheMiss !== undefined &&
         setInput(Inputs.FailOnCacheMiss, input.failOnCacheMiss.toString());
+    input.lookupOnly !== undefined &&
+        setInput(Inputs.LookupOnly, input.lookupOnly.toString());
 }
 
 export function clearInputs(): void {
@@ -38,4 +41,5 @@ export function clearInputs(): void {
     delete process.env[getInputName(Inputs.UploadChunkSize)];
     delete process.env[getInputName(Inputs.EnableCrossOsArchive)];
     delete process.env[getInputName(Inputs.FailOnCacheMiss)];
+    delete process.env[getInputName(Inputs.LookupOnly)];
 }