synclounge/build/dev-server.js

112 lines
3.0 KiB
JavaScript

require('./check-versions')();
const { readSettings } = require('../SettingsHelper');
const settings = readSettings();
const config = require('../config');
if (!process.env.NODE_ENV) {
process.env.NODE_ENV = JSON.parse(config.dev.env.NODE_ENV);
}
const opn = require('opn');
const path = require('path');
const express = require('express');
const webpack = require('webpack');
const proxyMiddleware = require('http-proxy-middleware');
const webpackConfig = require('./webpack.dev.conf');
const history = require('connect-history-api-fallback');
// default port where dev server listens for incoming traffic
const port = process.env.PORT || config.dev.port;
// automatically open browser, if not set will be false
const autoOpenBrowser = !!config.dev.autoOpenBrowser;
// Define HTTP proxies to your custom API backend
// https://github.com/chimurai/http-proxy-middleware
const proxyTable = config.dev.proxyTable;
const app = express();
const compiler = webpack(webpackConfig);
const devMiddleware = require('webpack-dev-middleware')(compiler, {
publicPath: webpackConfig.output.publicPath,
quiet: true,
});
const hotMiddleware = require('webpack-hot-middleware')(compiler, {
publicPath: webpackConfig.output.publicPath,
log: () => {},
});
// force page reload when html-webpack-plugin template changes
compiler.plugin('compilation', (compilation) => {
compilation.plugin('html-webpack-plugin-after-emit', (data, cb) => {
hotMiddleware.publish({ action: 'reload' });
cb();
});
});
// proxy api requests
Object.keys(proxyTable).forEach((context) => {
let options = proxyTable[context];
if (typeof options === 'string') {
options = { target: options };
}
app.use(proxyMiddleware(options.filter || context, options));
});
const staticPath = path.posix.join(config.dev.assetsPublicPath, config.dev.assetsSubDirectory);
// handle fallback for HTML5 history API
const indexPath = path.posix.join(staticPath, 'index.html');
app.use(
history({
index: indexPath,
}),
);
// serve webpack bundle output
app.use(devMiddleware);
// enable hot-reload and state-preserving
// compilation error display
app.use(hotMiddleware);
// serve pure static assets
app.use(staticPath, express.static('./static'));
const uri = `http://localhost:${port}${staticPath}`;
let _resolve;
const readyPromise = new Promise((resolve) => {
_resolve = resolve;
});
console.log('> Starting dev server...');
devMiddleware.waitUntilValid(() => {
console.log(`> Listening at ${uri}\n`);
// when env is testing, don't need open it
if (autoOpenBrowser && process.env.NODE_ENV !== 'testing') {
opn(uri);
}
_resolve();
});
const configPath = path.posix.join(staticPath, 'config');
app.get(configPath, (req, res) => {
res.header('Cache-Control', 'private, no-cache, no-store, must-revalidate');
res.header('Expires', '-1');
res.header('Pragma', 'no-cache');
res.send(settings);
});
const server = app.listen(port);
module.exports = {
ready: readyPromise,
close: () => {
server.close();
},
};