feat: dev mode support custom asset url host

app.js

@@ -19,8 +19,13 @@ module.exports = app => {
         throw new Error('check autoPort fail');
       }
     }
-    const protocol = app.options.https && assetsConfig.dynamicLocalIP ? 'https' : 'http';
-    assetsConfig.url = `${protocol}://127.0.0.1:${port}`;
+    // if not set url,it will be `127.0.0.1:${devServer.port}`
+    if (assetsConfig.url) {
+      assetsConfig.url = `${assetsConfig.url}:${port}`;
+    } else {
+      const protocol = app.options.https && assetsConfig.dynamicLocalIP ? 'https' : 'http';
+      assetsConfig.url = `${protocol}://127.0.0.1:${port}`;
+    }
   }
 
   // it should check manifest.json on deployment

config/config.default.js

@@ -6,7 +6,7 @@ module.exports = appInfo => ({
   /**
    * assets options
    * @member Config#assets
-   * @property {String} url - the host of the assets, it will be `http://127.0.0.1:${devServer.port}` in development.
+   * @property {String} url - the host of the assets,if not set,it will be `127.0.0.1:${devServer.port}` in development.
    * @property {String} publicPath - the base path of the assets
    * @property {String} templatePath - the file path of template rendering html
    * @property {String} templateViewEngine - the view engine for rendering template

test/assets.test.js

@@ -245,6 +245,26 @@ describe('test/assets.test.js', () => {
     });
   });
 
+  describe('custom dev assets.url', () => {
+    let app;
+
+    before(() => {
+      mock.env('local');
+      app = mock.cluster({
+        baseDir: 'apps/custom-assets-url',
+      });
+      return app.ready();
+    });
+    after(() => app.close());
+
+    it('should GET /', () => {
+      return app.httpRequest()
+        .get('/')
+        .expect(/<link rel="stylesheet" href="http:\/\/local.test.cn:8000\/index.css" \/>/)
+        .expect(200);
+    });
+  });
+
   describe('https assets.url with dynamicLocalIP', () => {
     let app;
 

test/fixtures/apps/custom-assets-url/config/config.local.js

@@ -0,0 +1,5 @@
+'use strict';
+
+exports.assets = {
+  url: 'http://local.test.cn',
+};