Merge pull request #41 from iainlane/iainlane/propagate-cache-key

action.yml

@@ -35,6 +35,9 @@ inputs:
     description: "Also cache on workflow failures"
     default: "true"
     required: false
+  cache-key:
+    description: "An additional cache key that is added alongside the automatic `job`-based cache key and can be used to further differentiate jobs."
+    required: false
   matcher:
     description: "Enable the Rust problem matcher"
     required: false
@@ -185,3 +188,4 @@ runs:
         workspaces: ${{inputs.cache-workspaces}}
         cache-directories: ${{inputs.cache-directories}}
         cache-on-failure: ${{inputs.cache-on-failure}}
+        key: ${{inputs.cache-key}}