Restart server when changing module code

packages/wxt/src/core/utils/building/__tests__/detect-dev-changes.test.ts

@@ -71,6 +71,33 @@ describe('Detect Dev Changes', () => {
     });
   });
 
+  describe('modules/*', () => {
+    it("should return 'full-restart' when one of the changed files is in the WXT modules folder", () => {
+      const modulesDir = '/root/modules';
+      setFakeWxt({
+        config: {
+          modulesDir,
+        },
+      });
+      const changes = [
+        '/root/src/public/image.svg',
+        `${modulesDir}/example.ts`,
+      ];
+      const currentOutput: BuildOutput = {
+        manifest: fakeManifest(),
+        publicAssets: [],
+        steps: [],
+      };
+      const expected: DevModeChange = {
+        type: 'full-restart',
+      };
+
+      const actual = detectDevChanges(changes, currentOutput);
+
+      expect(actual).toEqual(expected);
+    });
+  });
+
   describe('web-ext.config.ts', () => {
     it("should return 'browser-restart' when one of the changed files is the config file", () => {
       const runnerFile = '/root/web-ext.config.ts';

packages/wxt/src/core/utils/building/detect-dev-changes.ts

@@ -26,7 +26,11 @@ import { wxt } from '../../wxt';
  *   - Background script is changed
  *   - Manifest is different
  * - Restart browser
- *   - Config file changed (wxt.config.ts, .env, web-ext.config.ts, etc)
+ *   - web-ext.config.ts (runner config changes)
+ * - Full dev server restart
+ *   - wxt.config.ts (main config file)
+ *   - modules/* (any file related to WXT modules)
+ *   - .env (environment variable changed could effect build)
  */
 export function detectDevChanges(
   changedFiles: string[],
@@ -38,6 +42,11 @@ export function detectDevChanges(
   );
   if (isConfigChange) return { type: 'full-restart' };
 
+  const isWxtModuleChange = some(changedFiles, (file) =>
+    file.startsWith(wxt.config.modulesDir),
+  );
+  if (isWxtModuleChange) return { type: 'full-restart' };
+
   const isRunnerChange = some(
     changedFiles,
     (file) => file === wxt.config.runnerConfig.configFile,