Store and check action version in Config

src/config-utils.test.ts

@@ -199,6 +199,7 @@ test("load code quality config", async (t) => {
 
     // And the config we expect it to result in
     const expectedConfig: configUtils.Config = {
+      version: actionsUtil.getActionVersion(),
       analysisKinds: [AnalysisKind.CodeQuality],
       languages: [KnownLanguage.actions],
       buildMode: undefined,
@@ -273,6 +274,55 @@ test("loading config saves config", async (t) => {
   });
 });
 
+test("loading config with version mismatch throws", async (t) => {
+  return await withTmpDir(async (tempDir) => {
+    const logger = getRunnerLogger(true);
+
+    const codeql = createStubCodeQL({
+      async betterResolveLanguages() {
+        return {
+          extractors: {
+            javascript: [{ extractor_root: "" }],
+            python: [{ extractor_root: "" }],
+          },
+        };
+      },
+    });
+
+    // Sanity check the saved config file does not already exist
+    t.false(fs.existsSync(configUtils.getPathToParsedConfigFile(tempDir)));
+
+    // Sanity check that getConfig returns undefined before we have called initConfig
+    t.deepEqual(await configUtils.getConfig(tempDir, logger), undefined);
+
+    // Stub `getActionVersion` to return some nonsense.
+    const getActionVersionStub = sinon
+      .stub(actionsUtil, "getActionVersion")
+      .resolves("does-not-exist");
+
+    await configUtils.initConfig(
+      createTestInitConfigInputs({
+        languagesInput: "javascript,python",
+        tempDir,
+        codeql,
+        workspacePath: tempDir,
+        logger,
+      }),
+    );
+
+    // Restore `getActionVersion`.
+    getActionVersionStub.restore();
+
+    // The saved config file should now exist
+    t.true(fs.existsSync(configUtils.getPathToParsedConfigFile(tempDir)));
+
+    // Trying to read the configuration should now throw an error.
+    await t.throwsAsync(configUtils.getConfig(tempDir, logger), {
+      instanceOf: ConfigurationError,
+    });
+  });
+});
+
 test("load input outside of workspace", async (t) => {
   return await withTmpDir(async (tempDir) => {
     try {
@@ -389,6 +439,7 @@ test("load non-empty input", async (t) => {
 
     // And the config we expect it to parse to
     const expectedConfig: configUtils.Config = {
+      version: actionsUtil.getActionVersion(),
       analysisKinds: [AnalysisKind.CodeScanning],
       languages: [KnownLanguage.javascript],
       buildMode: BuildMode.None,