refactor: nuxt constructor no longer returns a promise

by not returning a promise we can expose .render method
also the old way of using nuxt won't change by 1.x release

bin/nuxt-build

@@ -52,7 +52,7 @@ if (analyzeBuild) {
 }
 
 console.log('[nuxt] Building...') // eslint-disable-line no-console
-new Nuxt(options).then(nuxt => {
+var nuxt = module.exports = new Nuxt(options)
 nuxt.build()
   .then(() => {
     console.log('[nuxt] Building done') // eslint-disable-line no-console
@@ -61,4 +61,3 @@ new Nuxt(options).then(nuxt => {
     console.error(err) // eslint-disable-line no-console
     process.exit(1)
   })
-})

bin/nuxt-dev

@@ -39,9 +39,11 @@ if (typeof options.rootDir !== 'string') {
 }
 options.dev = true // Add hot reloading and watching changes
 
-new Nuxt(options).then(nuxt => {
-  var server = new nuxt.Server(nuxt)
-    .listen(process.env.PORT || process.env.npm_package_config_nuxt_port, process.env.HOST || process.env.npm_package_config_nuxt_host)
+var nuxt = module.exports = new Nuxt(options)
+var port = process.env.PORT || process.env.npm_package_config_nuxt_port
+var host = process.env.HOST || process.env.npm_package_config_nuxt_host
+var server = nuxt.server = new nuxt.Server(nuxt).listen(port, host)
+
 listenOnConfigChanges(nuxt, server)
 
 nuxt.build()
@@ -49,7 +51,6 @@ new Nuxt(options).then(nuxt => {
     console.error(err) // eslint-disable-line no-console
     process.exit(1)
   })
-})
 
 function listenOnConfigChanges(nuxt, server) {
   // Listen on nuxt.config.js changes
@@ -69,7 +70,7 @@ function listenOnConfigChanges (nuxt, server) {
       .then(() => {
         nuxt.renderer = null
         debug('Rebuilding the app...')
-      return (new Nuxt(options)).then(nuxt => nuxt.build())
+        return new Nuxt(options).build()
       })
       .then((nuxt) => {
         server.nuxt = nuxt

bin/nuxt-generate

@@ -20,7 +20,7 @@ if (typeof options.rootDir !== 'string') {
 options.dev = false // Force production mode (no webpack middleware called)
 
 console.log('[nuxt] Generating...') // eslint-disable-line no-console
-new Nuxt(options).then(nuxt => {
+var nuxt = module.exports = new Nuxt(options)
 nuxt.generate()
   .then(() => {
     console.log('[nuxt] Generate done') // eslint-disable-line no-console
@@ -29,4 +29,3 @@ new Nuxt(options).then(nuxt => {
     console.error(err) // eslint-disable-line no-console
     process.exit(1)
   })
-})

bin/nuxt-start

@@ -16,10 +16,7 @@ if (typeof options.rootDir !== 'string') {
 }
 options.dev = false // Force production mode (no webpack middleware called)
 
-new Nuxt(options).then(nuxt => {
-  new nuxt.Server(nuxt)
-    .listen(
-      process.env.PORT || process.env.npm_package_config_nuxt_port,
-      process.env.HOST || process.env.npm_package_config_nuxt_host
-    )
-})
+var nuxt = module.exports = new Nuxt(options)
+var port = process.env.PORT || process.env.npm_package_config_nuxt_port
+var host = process.env.HOST || process.env.npm_package_config_nuxt_host
+var server = nuxt.server = new nuxt.Server(nuxt).listen(port, host)

examples/with-ava/test/index.test.js

@@ -14,7 +14,7 @@ test.before('Init Nuxt.js', async t => {
   try { config = require(resolve(rootDir, 'nuxt.config.js')) } catch (e) {}
   config.rootDir = rootDir // project folder
   config.dev = false // production build
-  nuxt = await new Nuxt(config)
+  nuxt = new Nuxt(config)
   await nuxt.build()
   server = new nuxt.Server(nuxt)
   server.listen(4000, 'localhost')

lib/build.js

@@ -97,8 +97,10 @@ export function options () {
 }
 
 export async function build () {
-  this._nuxtPages = typeof this.createRoutes !== 'function'
+  // Initialize modules first
+  await this.module.init()
   // Check if pages dir exists and warn if not
+  this._nuxtPages = typeof this.createRoutes !== 'function'
   if (this._nuxtPages) {
     if (!fs.existsSync(join(this.srcDir, 'pages'))) {
       if (fs.existsSync(join(this.srcDir, '..', 'pages'))) {

lib/module.js

@@ -4,13 +4,27 @@ import path from 'path'
 import fs from 'fs'
 import {uniq} from 'lodash'
 import hash from 'hash-sum'
-import {chainFn} from './utils'
+import {chainFn, sequence} from './utils'
+
+const debug = require('debug')('nuxt:module')
 
 class Module {
   constructor(nuxt) {
     this.nuxt = nuxt
     this.options = nuxt.options
     this.modules = []
+    this.initialized = false
+  }
+
+  async init() {
+    if (this.initialized) {
+      debug('[nuxt] Modules are already initialized')
+      return
+    }
+    // Install all modules in sequence
+    await sequence(this.options.modules, this.addModule.bind(this))
+    // Indicate modules are already initialized
+    this.initialized = true
   }
 
   addVendor(vendor) {
@@ -31,8 +45,7 @@ class Module {
     const srcPath = path.parse(src)
     /* istanbul ignore if */
     if (!src || typeof src !== 'string' || !fs.existsSync(src)) {
-      // eslint-disable-next-line no-console
-      console.warn('[nuxt] invalid template', template)
+      debug('[nuxt] invalid template', template)
       return
     }
     // Generate unique and human readable dst filename

lib/nuxt.js

@@ -121,14 +121,6 @@ class Nuxt {
     this.utils = utils
     // Add module integration
     this.module = new Module(this)
-    // Install all modules in sequence and then return `this` instance
-    return utils.sequence(options.modules, this.module.addModule.bind(this.module))
-    .then(() => this)
-    .catch(/* istanbul ignore next */ (err) => {
-      console.error('[nuxt] error while initializing modules') // eslint-disable-line no-console
-      console.error(err) // eslint-disable-line no-console
-      process.exit(1)
-    })
   }
 
   close (callback) {

test/basic.dev.test.js

@@ -14,7 +14,7 @@ test.before('Init Nuxt.js', async t => {
     rootDir: resolve(__dirname, 'fixtures/basic'),
     dev: true
   }
-  nuxt = await new Nuxt(options)
+  nuxt = new Nuxt(options)
   await nuxt.build()
   server = new nuxt.Server(nuxt)
   server.listen(port, 'localhost')

test/basic.fail.generate.test.js

@@ -14,7 +14,7 @@ test('Fail with routes() which throw an error', async t => {
       }
     }
   }
-  const nuxt = await new Nuxt(options)
+  const nuxt = new Nuxt(options)
   return new Promise((resolve) => {
     var oldExit = process.exit
     var oldCE = console.error // eslint-disable-line no-console

test/basic.generate.test.js

@@ -17,7 +17,7 @@ test.before('Init Nuxt.js', async t => {
   let config = require(resolve(rootDir, 'nuxt.config.js'))
   config.rootDir = rootDir
   config.dev = false
-  nuxt = await new Nuxt(config)
+  nuxt = new Nuxt(config)
   try {
     await nuxt.generate() // throw an error (of /validate route)
   } catch (err) {}

test/basic.test.js

@@ -16,7 +16,7 @@ test.before('Init Nuxt.js', async t => {
     rootDir: resolve(__dirname, 'fixtures/basic'),
     dev: false
   }
-  nuxt = await new Nuxt(options)
+  nuxt = new Nuxt(options)
   await nuxt.build()
   server = new nuxt.Server(nuxt)
   server.listen(port, 'localhost')

test/children.test.js

@@ -13,7 +13,7 @@ test.before('Init Nuxt.js', async t => {
     rootDir: resolve(__dirname, 'fixtures/children'),
     dev: false
   }
-  nuxt = await new Nuxt(options)
+  nuxt = new Nuxt(options)
   await nuxt.build()
   server = new nuxt.Server(nuxt)
   server.listen(port, 'localhost')

test/dynamic-routes.test.js

@@ -6,7 +6,7 @@ const readFile = pify(fs.readFile)
 
 test.before('Init Nuxt.js', async t => {
   const Nuxt = require('../')
-  const nuxt = await new Nuxt({
+  const nuxt = new Nuxt({
     rootDir: resolve(__dirname, 'fixtures/dynamic-routes'),
     dev: false
   })

test/error.test.js

@@ -13,7 +13,7 @@ test.before('Init Nuxt.js', async t => {
     rootDir: resolve(__dirname, 'fixtures/error'),
     dev: false
   }
-  nuxt = await new Nuxt(options)
+  nuxt = new Nuxt(options)
   await nuxt.build()
   server = new nuxt.Server(nuxt)
   server.listen(port, 'localhost')

test/index.test.js

@@ -8,7 +8,7 @@ test('Nuxt.js Class', t => {
 })
 
 test('Nuxt.js Instance', async t => {
-  const nuxt = await new Nuxt()
+  const nuxt = new Nuxt()
   t.is(typeof nuxt, 'object')
   t.is(nuxt.dev, true)
   t.is(typeof nuxt.build, 'function')
@@ -16,7 +16,7 @@ test('Nuxt.js Instance', async t => {
 })
 
 test.serial('Fail when build not done and try to render', async t => {
-  const nuxt = await new Nuxt({
+  const nuxt = new Nuxt({
     dev: false,
     rootDir: resolve(__dirname, 'fixtures/empty')
   })
@@ -37,7 +37,7 @@ test.serial('Fail when build not done and try to render', async t => {
 })
 
 test.serial('Fail to build when no pages/ directory but is in the parent', async t => {
-  const nuxt = await new Nuxt({
+  const nuxt = new Nuxt({
     dev: false,
     rootDir: resolve(__dirname, 'fixtures', 'empty', 'pages')
   })
@@ -58,7 +58,7 @@ test.serial('Fail to build when no pages/ directory but is in the parent', async
 })
 
 test.serial('Fail to build when no pages/ directory', async t => {
-  const nuxt = await new Nuxt({
+  const nuxt = new Nuxt({
     dev: false,
     rootDir: resolve(__dirname)
   })

test/module.test.js

@@ -17,7 +17,7 @@ test.before('Init Nuxt.js', async t => {
   let config = require(resolve(rootDir, 'nuxt.config.js'))
   config.rootDir = rootDir
   config.dev = false
-  nuxt = await new Nuxt(config)
+  nuxt = new Nuxt(config)
   await nuxt.build()
   server = new nuxt.Server(nuxt)
   server.listen(port, 'localhost')

test/utils.test.js

@@ -5,7 +5,7 @@ let utils
 // Init nuxt.js and create server listening on localhost:4000
 test.before('Init Nuxt.js', async t => {
   const Nuxt = require('../')
-  let nuxt = await new Nuxt({ dev: false })
+  let nuxt = new Nuxt({ dev: false })
   utils = nuxt.utils
 })
 

test/with-config.test.js

@@ -15,7 +15,7 @@ test.before('Init Nuxt.js', async t => {
   let config = require(resolve(rootDir, 'nuxt.config.js'))
   config.rootDir = rootDir
   config.dev = false
-  nuxt = await new Nuxt(config)
+  nuxt = new Nuxt(config)
   await nuxt.build()
   server = new nuxt.Server(nuxt)
   server.listen(port, 'localhost')
@@ -110,5 +110,5 @@ test.after('Should be able to start Nuxt with build done', async t => {
   let config = require(resolve(rootDir, 'nuxt.config.js'))
   config.rootDir = rootDir
   config.dev = false
-  nuxt = await new Nuxt(config)
+  nuxt = new Nuxt(config)
 })