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56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
import { createServer, request } from 'http'
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import esbuild from 'esbuild';
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import config from '../esbuildconf.js';
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// from https://github.com/evanw/esbuild/issues/802
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const clients = [];
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config.options.banner = {
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js: ' (() => new EventSource("/_live").onmessage = () => location.reload())();'
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};
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config.options.watch = {
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onRebuild(err, res) {
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if (err) {
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console.log(err);
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return;
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}
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clients.forEach((c) => c.write('data: update\n\n'));
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const n = clients.length;
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clients.length = 0;
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console.log(`>>> sent reload msg to ${n} client(s)`);
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}
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};
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esbuild.build(config.options).catch(() => process.exit(1));
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const s = {
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host: '127.0.0.1',
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servedir: config.options.outdir,
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onRequest: (req) => {
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console.log(`${req.method} ${req.path} ${req.status} ${req.timeInMS}ms`);
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}
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};
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esbuild.serve(s, {}).then(server => {
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const {host, port} = server;
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const livePort = port + 1;
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console.log(`serving content from http://${host}:${port}/`);
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console.log(`serving live reload at http://${host}:${livePort}/`);
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createServer((req, resp) => {
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const { url, method, headers } = req;
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if (url === '/_live') {
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clients.push(resp.writeHead(200, {
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'content-type': 'text/event-stream',
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'cache-control': 'no-cache',
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'connection': 'keep-alive',
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}));
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console.log(`>>> client connected; total is now ${clients.length}`);
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return;
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}
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const path = ~url.split('/').pop().indexOf('.') ? url : '/index.html';
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const proxyReq = request({hostname: host, port: port, path, method, headers}, (proxyResp) => {
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resp.writeHead(proxyResp.statusCode, proxyResp.headers);
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proxyResp.pipe(resp, {end: true});
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});
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req.pipe(proxyReq, {end: true});
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}).listen(livePort, host);
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});
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