update save as well

src/stateProvider.ts

@@ -0,0 +1,42 @@
+import * as core from "@actions/core";
+
+import { State } from "./constants";
+
+export interface IStateProvider {
+    //setOutput(key: string, value: string): void;
+    setState(key: string, value: string): void;
+    getState(key: string): string;
+
+    getCacheState(): string | undefined;
+}
+
+class StateProviderBase implements IStateProvider {
+    getCacheState(): string | undefined {
+        const cacheKey = this.getState(State.CacheMatchedKey);
+        if (cacheKey) {
+            core.debug(`Cache state/key: ${cacheKey}`);
+            return cacheKey;
+        }
+
+        return undefined;
+    }
+
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars, @typescript-eslint/no-empty-function
+    setState = (key: string, value: string) => {};
+
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    getState = (key: string) => "";
+}
+
+export class StateProvider extends StateProviderBase {
+    //setOutput = core.setOutput;
+    setState = core.saveState;
+    getState = core.getState;
+}
+
+export class NullStateProvider extends StateProviderBase {
+    //setOutput = core.setOutput;
+    setState = core.setOutput;
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    getState = (key: string) => "";
+}