Add dry-run option

restore/README.md

@@ -7,6 +7,7 @@ The restore action, as the name suggest, restores a cache. It acts similar to th
 * `path` - A list of files, directories, and wildcard patterns to cache and restore. See [`@actions/glob`](https://github.com/actions/toolkit/tree/main/packages/glob) for supported patterns.
 * `key` - String used while saving cache for restoring the cache
 * `restore-keys` - An ordered list of prefix-matched keys to use for restoring stale cache if no cache hit occurred for key.
+* `dry-run` - Skip downloading cache. Only check if cache entry exists
 
 ## Outputs
 

restore/action.yml

@@ -15,6 +15,10 @@ inputs:
     description: 'An optional boolean when enabled, allows windows runners to restore caches that were saved on other platforms'
     default: 'false'
     required: false
+  dry-run:
+    description: 'Skip downloading cache. Only check if cache entry exists'
+    required: false
+    default: "false"
 outputs:
   cache-hit:
     description: 'A boolean value to indicate an exact match was found for the primary key'
@@ -27,4 +31,4 @@ runs:
   main: '../dist/restore-only/index.js'
 branding:
   icon: 'archive'
-  color: 'gray-dark'
+  color: 'gray-dark'