[build-utils][cli] Detect file system api usage, abort on "Exclusion Conditions" (#7158)

packages/cli/src/util/dev/server.ts

@@ -40,6 +40,7 @@ import {
   detectApiExtensions,
   spawnCommand,
   isOfficialRuntime,
+  detectFileSystemAPI,
 } from '@vercel/build-utils';
 import frameworkList from '@vercel/frameworks';
 
@@ -599,6 +600,32 @@ export default class DevServer {
         );
       }
 
+      const { reason, metadata } = await detectFileSystemAPI({
+        files,
+        builders: builders || [],
+        projectSettings: projectSettings || this.projectSettings || {},
+        vercelConfig,
+        pkg,
+        tag: '',
+        enableFlag: true,
+      });
+
+      if (reason) {
+        if (metadata.hasMiddleware) {
+          this.output.error(
+            `Detected middleware usage which requires the latest API. ${reason}`
+          );
+          await this.exit();
+        } else if (metadata.plugins.length > 0) {
+          this.output.error(
+            `Detected CLI plugins which requires the latest API. ${reason}`
+          );
+          await this.exit();
+        } else {
+          this.output.warn(`Unable to use latest API. ${reason}`);
+        }
+      }
+
       if (builders) {
         if (this.devCommand) {
           builders = builders.filter(filterFrontendBuilds);