Improve hooks in nuxt.config.js (#3766)

* Improve hooks in nuxt.config.js

* No mult-line for

lib/app/store.js

@@ -66,7 +66,9 @@ if (typeof storeData !== 'function') {
     const appendedMods = {}
     if (module[name].appends) {
       appendedMods.appends = module[name].appends
-      for (const append of module[name].appends) { appendedMods[append] = module[name][append] }
+      for (const append of module[name].appends) {
+        appendedMods[append] = module[name][append]
+      }
     }
 
     module[name] = Object.assign({}, module[name], fileModule, appendedMods)

lib/core/nuxt.js

@@ -105,11 +105,30 @@ export default class Nuxt {
     }
   }
 
-  addObjectHooks(hooksObj) {
-    Object.keys(hooksObj).forEach((name) => {
-      let hooks = hooksObj[name]
-      hooks = Array.isArray(hooks) ? hooks : [hooks]
-      hooks.forEach(hook => this.hook(name, hook))
+  getObjectHooks(hooksObj, keyList = [], stack = '') {
+    Object.keys(hooksObj).forEach((key) => {
+      if (typeof hooksObj[key] === 'object' && hooksObj[key] !== null) {
+        this.getObjectHooks(hooksObj[key], keyList, `${stack}:${key}`)
+      } else {
+        const value = hooksObj[key]
+        key = `${stack}:${key}`
+        keyList.push({
+          name: key.slice(1),
+          hook: value
+        })
+      }
+    })
+    return keyList.reduce((hash, pair) => {
+      return { ...hash, [pair.name]: pair.hook }
+    }, {})
+  }
+
+  addObjectHooks(obj) {
+    const hooksObj = this.getObjectHooks(obj)
+    Object.keys(hooksObj).filter(Boolean).forEach((key) => {
+      const hook = hooksObj[key]
+      const hooks = Array.isArray(hook) ? hook : [hook]
+      hooks.forEach(h => this.hook(key, h))
     })
   }
 

test/fixtures/basic/nuxt.config.js

@@ -44,6 +44,11 @@ export default {
     ready(nuxt) {
       nuxt.__hook_called__ = true
     },
+    build: {
+      done(builder) {
+        builder.__hook_called__ = true
+      }
+    },
     bad: null,
     '': true
   },

test/unit/basic.dev.test.js

@@ -4,6 +4,7 @@ let port
 const url = route => 'http://localhost:' + port + route
 
 let nuxt = null
+let builder = null
 let transpile = null
 
 describe('basic dev', () => {
@@ -26,11 +27,16 @@ describe('basic dev', () => {
       }
     })
     nuxt = new Nuxt(config)
-    await new Builder(nuxt).build()
+    builder = new Builder(nuxt)
+    await builder.build()
     port = await getPort()
     await nuxt.listen(port, 'localhost')
   })
 
+  test('Check build:done hook called', () => {
+    expect(builder.__hook_called__).toBe(true)
+  })
+
   test('Config: build.transpile', () => {
     expect(transpile('vue-test')).toBe(true)
     expect(transpile('node_modules/test.js')).toBe(false)