mirror of
https://github.com/kevin-DL/sapper.git
synced 2026-01-12 11:15:14 +00:00
support HMR
This commit is contained in:
Rich Harris
@@ -25,7 +25,7 @@ module.exports = function create_app(src, dest, routes, options) {
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// need to fudge the mtime, because webpack is soft in the head
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const stats = fs.statSync(main_built);
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fs.utimesSync(main_built, stats.atimeMs - 9999, stats.mtimeMs - 9999);
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fs.utimesSync(main_built, stats.atimeMs - 999999, stats.mtimeMs - 999999);
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}
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function create_server_routes() {
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@@ -42,7 +42,7 @@ module.exports = function create_app(src, dest, routes, options) {
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fs.writeFileSync(server_routes, `${imports}\n\n${exports}`);
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const stats = fs.statSync(server_routes);
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fs.utimesSync(server_routes, stats.atimeMs - 9999, stats.mtimeMs - 9999);
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fs.utimesSync(server_routes, stats.atimeMs - 999999, stats.mtimeMs - 999999);
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}
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// TODO in dev mode, watch files
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@@ -1,141 +1,148 @@
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const fs = require('fs');
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const path = require('path');
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const glob = require('glob');
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const webpack = require('webpack');
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const hot_middleware = require('webpack-hot-middleware');
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const chalk = require('chalk');
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const { dev } = require('../config.js');
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const templates = require('../templates.js');
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module.exports = function create_webpack_compiler(dest, routes, dev) {
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module.exports = function create_compiler(client, server, dest, routes, dev) {
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const compiler = {};
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function go() {
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const client = webpack(
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require(path.resolve('webpack.client.config.js'))
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);
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function client_updated(stats) {
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console.log(stats.toString({ colors: true }));
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const server = webpack(
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require(path.resolve('webpack.server.config.js'))
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);
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const info = stats.toJson();
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function client_updated(err, stats, reject) {
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console.log(stats.toString({ colors: true }));
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compiler.client_main = `/client/${info.assetsByChunkName.main}`;
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compiler.assets = info.assets.map(asset => `/client/${asset.name}`);
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const info = stats.toJson();
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if (err || stats.hasErrors()) {
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reject(err || info.errors[0]);
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}
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compiler.client_main = `/client/${info.assetsByChunkName.main}`;
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compiler.assets = info.assets.map(asset => `/client/${asset.name}`);
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compiler.asset_cache = {};
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compiler.assets.forEach(file => {
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compiler.asset_cache[file] = fs.readFileSync(path.join(dest, file), 'utf-8');
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});
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}
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function server_updated(err, stats, reject) {
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console.log(stats.toString({ colors: true }));
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const info = stats.toJson();
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if (err || stats.hasErrors()) {
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reject(err || info.errors[0]);
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}
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compiler.server_routes = path.resolve(dest, 'server', info.assetsByChunkName.server_routes);
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compiler.chunks = info.assetsByChunkName;
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}
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function both_updated() {
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const assets = glob.sync('**', { cwd: 'assets', nodir: true });
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const route_code = `[${
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routes
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.filter(route => route.type === 'page')
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.map(route => `{ pattern: ${route.pattern} }`)
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.join(', ')
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}]`;
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compiler.service_worker = fs.readFileSync('templates/service-worker.js', 'utf-8')
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.replace('__timestamp__', Date.now())
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.replace('__assets__', JSON.stringify(assets))
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.replace('__shell__', JSON.stringify(compiler.assets.concat('/index.html')))
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.replace('__routes__', route_code);
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compiler.shell = templates.render(200, {
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styles: '',
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head: '',
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html: '<noscript>Please enable JavaScript!</noscript>',
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main: compiler.client_main
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});
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// useful for debugging, but the files are served from memory
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fs.writeFileSync(path.resolve(dest, 'service-worker.js'), compiler.service_worker);
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fs.writeFileSync(path.resolve(dest, 'index.html'), compiler.shell);
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}
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if (dev) {
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compiler.hot_middleware = hot_middleware(client);
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let client_is_ready = false;
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let server_is_ready = false;
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let fulfil;
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let reject;
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const invalidate = () => new Promise((f, r) => {
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fulfil = f;
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reject = r;
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});
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compiler.ready = invalidate();
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client.plugin('invalid', () => {
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client_is_ready = false;
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compiler.ready = invalidate();
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});
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server.plugin('invalid', () => {
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server_is_ready = false;
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compiler.ready = invalidate();
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});
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client.watch({}, (err, stats) => {
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client_updated(err, stats, reject);
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client_is_ready = true;
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if (server_is_ready) fulfil();
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});
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server.watch({}, (err, stats) => {
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server_updated(err, stats, reject);
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server_is_ready = true;
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if (client_is_ready) fulfil();
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});
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} else {
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compiler.ready = Promise.all([
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new Promise((fulfil, reject) => {
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client.run((err, stats) => {
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client_updated(err, stats, reject);
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fulfil();
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});
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}),
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new Promise((fulfil, reject) => {
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server.run((err, stats) => {
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server_updated(err, stats, reject);
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fulfil();
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});
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})
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]).then(both_updated);
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}
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const fs = client.outputFileSystem;
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compiler.asset_cache = {};
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compiler.assets.forEach(file => {
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compiler.asset_cache[file] = fs.readFileSync(path.join(dest, file), 'utf-8');
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});
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}
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// TODO rerun go when routes are added/renamed
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// (or webpack config/templates change?)
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go();
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function server_updated(stats) {
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console.log(stats.toString({ colors: true }));
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const info = stats.toJson();
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compiler.server_routes = path.resolve(dest, 'server', info.assetsByChunkName.server_routes);
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compiler.chunks = info.assetsByChunkName;
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}
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function both_updated() {
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const assets = glob.sync('**', { cwd: 'assets', nodir: true });
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const route_code = `[${
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routes
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.filter(route => route.type === 'page')
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.map(route => `{ pattern: ${route.pattern} }`)
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.join(', ')
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}]`;
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compiler.service_worker = fs.readFileSync('templates/service-worker.js', 'utf-8')
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.replace('__timestamp__', Date.now())
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.replace('__assets__', JSON.stringify(assets))
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.replace('__shell__', JSON.stringify(compiler.assets.concat('/index.html')))
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.replace('__routes__', route_code);
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compiler.shell = templates.render(200, {
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styles: '',
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head: '',
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html: '<noscript>Please enable JavaScript!</noscript>',
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main: compiler.client_main
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});
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// useful for debugging, but the files are served from memory
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fs.writeFileSync(path.resolve(dest, 'service-worker.js'), compiler.service_worker);
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fs.writeFileSync(path.resolve(dest, 'index.html'), compiler.shell);
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}
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if (dev) {
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let client_is_ready = false;
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let server_is_ready = false;
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let fulfil;
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let reject;
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const invalidate = () => new Promise((f, r) => {
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fulfil = f;
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reject = r;
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});
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compiler.ready = invalidate();
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client.plugin('invalid', filename => {
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console.log(chalk.red(`client bundle invalidated, file changed: ${chalk.bold(filename)}`));
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client_is_ready = false;
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compiler.ready = invalidate();
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});
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client.plugin('done', stats => {
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if (stats.hasErrors()) {
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reject(stats.toJson().errors[0]);
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} else {
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client_updated(stats);
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}
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client_is_ready = true;
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if (server_is_ready) fulfil();
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});
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client.plugin('failed', reject);
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server.plugin('invalid', filename => {
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console.log(chalk.red(`server bundle invalidated, file changed: ${chalk.bold(filename)}`));
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server_is_ready = false;
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compiler.ready = invalidate();
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});
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server.plugin('done', stats => {
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if (stats.hasErrors()) {
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reject(stats.toJson().errors[0]);
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} else {
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server_updated(stats);
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}
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server_is_ready = true;
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if (client_is_ready) fulfil();
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});
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server.plugin('failed', reject);
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// client is already being watched by the middleware,
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// so we only need to start the server compiler
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server.watch({}, (err, stats) => {
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if (stats.hasErrors()) {
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reject(stats.toJson().errors[0]);
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} else {
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server_updated(stats);
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server_is_ready = true;
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if (client_is_ready) fulfil();
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}
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});
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} else {
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compiler.ready = Promise.all([
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new Promise((fulfil, reject) => {
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client.run((err, stats) => {
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if (stats.hasErrors()) {
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reject(stats.toJson().errors[0]);
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} else {
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client_updated(stats);
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}
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fulfil();
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});
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}),
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new Promise((fulfil, reject) => {
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server.run((err, stats) => {
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server_updated(err, stats, reject);
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fulfil();
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});
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})
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]).then(both_updated);
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}
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return compiler;
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};
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