write assets to disk

bin/next-dev

@@ -3,7 +3,6 @@
 import { resolve } from 'path'
 import parseArgs from 'minimist'
 import Server from '../server'
-import build from '../server/build'
 import HotReloader from '../server/hot-reloader'
 import webpack from '../server/build/webpack'
 
@@ -20,9 +19,8 @@ const argv = parseArgs(process.argv.slice(2), {
 
 const dir = resolve(argv._[0] || '.')
 
-build(dir)
-.then(async () => {
-  const compiler = await webpack(dir, { hotReload: true })
+webpack(dir, { hotReload: true })
+.then(async (compiler) => {
   const hotReloader = new HotReloader(compiler)
   const srv = new Server({ dir, dev: true, hotReloader })
   await srv.start(argv.port)

package.json

@@ -43,7 +43,8 @@
     "send": "0.14.1",
     "url": "0.11.0",
     "webpack": "1.13.2",
-    "webpack-dev-server": "1.16.2"
+    "webpack-dev-server": "1.16.2",
+    "write-file-webpack-plugin": "3.3.0"
   },
   "devDependencies": {
     "babel-plugin-transform-remove-strict-mode": "0.0.2",

server/build/webpack.js

@@ -1,6 +1,7 @@
 import { resolve, join } from 'path'
 import webpack from 'webpack'
 import glob from 'glob-promise'
+import WriteFilePlugin from 'write-file-webpack-plugin'
 
 export default async function createCompiler(dir, { hotReload = false } = {}) {
   dir = resolve(dir)
@@ -20,6 +21,16 @@ export default async function createCompiler(dir, { hotReload = false } = {}) {
 
   const nodeModulesDir = resolve(__dirname, '..', '..', '..', 'node_modules')
 
+  const plugins = hotReload ? [
+    new webpack.HotModuleReplacementPlugin(),
+    new WriteFilePlugin({ log: false })
+  ] : [
+    new webpack.optimize.UglifyJsPlugin({
+      compress: { warnings: false },
+      sourceMap: false
+    })
+  ]
+
   const babelRuntimePath = require.resolve('babel-runtime/package')
   .replace(/[\\\/]package\.json$/, '');
 
@@ -96,14 +107,7 @@ export default async function createCompiler(dir, { hotReload = false } = {}) {
         resolve(__dirname, '..', 'loaders')
       ]
     },
-    plugins: [
-      hotReload
-      ? new webpack.HotModuleReplacementPlugin()
-      : new webpack.optimize.UglifyJsPlugin({
-        compress: { warnings: false },
-        sourceMap: false
-      })
-    ],
+    plugins,
     module: {
       preLoaders: [
         { test: /\.json$/, loader: 'json-loader' }

server/hot-reloader.js

@@ -1,4 +1,5 @@
 import WebpackDevServer from 'webpack-dev-server'
+import read from './read'
 
 export default class HotReloader {
   constructor (compiler) {
@@ -8,6 +9,17 @@ export default class HotReloader {
       noInfo: true,
       clientLogLevel: 'warning'
     })
+
+    compiler.plugin('after-emit', (compilation, callback) => {
+      const { assets } = compilation
+      for (const f of Object.keys(assets)) {
+        const source = assets[f]
+        // delete updated file caches
+        delete require.cache[source.existsAt]
+        delete read.cache[source.existsAt]
+      }
+      callback()
+    })
   }
 
   async start () {

server/index.js

@@ -3,7 +3,6 @@ import { resolve } from 'path'
 import send from 'send'
 import Router from './router'
 import { render, renderJSON } from './render'
-import HotReloader from './hot-reloader'
 
 export default class Server {
   constructor ({ dir = '.', dev = false, hotReloader }) {
@@ -63,11 +62,10 @@ export default class Server {
   }
 
   async render (req, res) {
-    const { dir, dev, hotReloader } = this
-    const mfs = hotReloader ? hotReloader.fileSystem : null
+    const { dir, dev } = this
     let html
     try {
-      html = await render(req.url, { req, res }, { dir, dev, mfs })
+      html = await render(req.url, { req, res }, { dir, dev })
     } catch (err) {
       if ('ENOENT' === err.code) {
         res.statusCode = 404
@@ -75,18 +73,17 @@ export default class Server {
         console.error(err)
         res.statusCode = 500
       }
-      html = await render('/_error', { req, res, err }, { dir, dev, mfs })
+      html = await render('/_error', { req, res, err }, { dir, dev })
     }
 
     sendHTML(res, html)
   }
 
   async renderJSON (req, res) {
-    const { dir, hotReloader } = this
-    const mfs = hotReloader ? hotReloader.fileSystem : null
+    const { dir } = this
     let json
     try {
-      json = await renderJSON(req.url, { dir, mfs })
+      json = await renderJSON(req.url, { dir })
     } catch (err) {
       if ('ENOENT' === err.code) {
         res.statusCode = 404
@@ -94,7 +91,7 @@ export default class Server {
         console.error(err)
         res.statusCode = 500
       }
-      json = await renderJSON('/_error.json', { dir, mfs })
+      json = await renderJSON('/_error.json', { dir })
     }
 
     const data = JSON.stringify(json)

server/read.js

@@ -1,42 +1,23 @@
 import fs from 'mz/fs'
 import resolve from './resolve'
 
-const cache = {}
-
 /**
  * resolve a file like `require.resolve`,
  * and read and cache the file content
  */
 
-async function read (path, { mfs }) {
-  const f = await (mfs ? resolveFromMFS(path, mfs) : resolve(path))
-  if (mfs) {
-    return mfs.readFileSync(f, 'utf8')
-  } else {
-    let promise = cache[f]
-    if (!promise) {
-      promise = cache[f] = fs.readFile(f, 'utf8')
-    }
-    return promise
+async function read (path, opts = {}) {
+  const f = await resolve(path)
+  if (cache.hasOwnProperty(f)) {
+    return cache[f]
   }
+
+  const data = fs.readFile(f, 'utf8')
+  cache[f] = data
+  return data
 }
 
-function resolveFromMFS (path, mfs) {
-  const isFile = (file, cb) => {
-    if (!mfs.existsSync(file)) return cb(null, false)
+export default read
+export const cache = {}
 
-    let stat
-    try {
-      stat = mfs.statSync(file)
-    } catch (err) {
-      return cb(err)
-    }
-    cb(null, stat.isFile() || stat.isFIFO())
-  }
-  const readFile = mfs.readFile.bind(mfs)
-  return resolve(path, { isFile, readFile })
-}
-
-module.exports = read
-
-exports.cache = cache
+read.cache = cache

server/render.js

@@ -2,8 +2,7 @@ import { relative, resolve } from 'path'
 import { parse } from 'url'
 import { createElement } from 'react'
 import { renderToString, renderToStaticMarkup } from 'react-dom/server'
-import fs from 'mz/fs'
-import requireResolve from './resolve'
+import requireModule from './require'
 import read from './read'
 import Router from '../lib/router'
 import Document from '../lib/document'
@@ -14,16 +13,14 @@ import { StyleSheetServer } from '../lib/css'
 export async function render (url, ctx = {}, {
   dir = process.cwd(),
   dev = false,
-  staticMarkup = false,
-  mfs
+  staticMarkup = false
 } = {}) {
   const path = getPath(url)
-  const p = await requireResolve(resolve(dir, '.next', 'pages', path))
-  const mod = require(p)
+  const mod = await requireModule(resolve(dir, '.next', 'pages', path))
   const Component = mod.default || mod
 
   const props = await (Component.getInitialProps ? Component.getInitialProps(ctx) : {})
-  const component = await read(resolve(dir, '.next', '_bundles', 'pages', path), { mfs })
+  const component = await read(resolve(dir, '.next', '_bundles', 'pages', path))
 
   const { html, css } = StyleSheetServer.renderStatic(() => {
     const app = createElement(App, {
@@ -54,9 +51,9 @@ export async function render (url, ctx = {}, {
   return '<!DOCTYPE html>' + renderToStaticMarkup(doc)
 }
 
-export async function renderJSON (url, { dir = process.cwd(), mfs } = {}) {
+export async function renderJSON (url, { dir = process.cwd() } = {}) {
   const path = getPath(url)
-  const component = await read(resolve(dir, '.next', '_bundles', 'pages', path), { mfs })
+  const component = await read(resolve(dir, '.next', '_bundles', 'pages', path))
   return { component }
 }
 

server/require.js

@@ -0,0 +1,6 @@
+import resolve from './resolve'
+
+export default async function requireModule (path) {
+  const f = await resolve(path)
+  return require(f)
+}