#!/usr/bin/env node
/* eslint-env node */
const esbuild = require("esbuild");
const path = require("path");
const fs = require("fs");
const { createServer } = require("http");
const { wasmTextPlugin } = require("./scripts/esbuild/wasm-text");
const { forthPlugin } = require("./scripts/esbuild/forth");
function withWatcher(config, handleBuildFinished = () => {}, port = 8880) {
const watchClients = [];
createServer((req, res) => {
return watchClients.push(
res.writeHead(200, {
"Content-Type": "text/event-stream",
"Cache-Control": "no-cache",
"Access-Control-Allow-Origin": "*",
Connection: "keep-alive",
})
);
}).listen(port);
return {
...config,
banner: {
js: `(function () { new EventSource("http://localhost:${port}").onmessage = function() { location.reload();};})();`,
},
watch: {
async onRebuild(error, result) {
if (error) {
console.error(error);
} else {
// Doing this first, because this may do some ES5 transformations
await handleBuildFinished(result);
watchClients.forEach((res) => res.write("data: update\n\n"));
watchClients.length = 0;
}
},
},
};
}
let dev = false;
let watch = false;
for (const arg of process.argv.slice(2)) {
switch (arg) {
case "--development":
dev = true;
break;
case "--watch":
watch = true;
break;
}
}
let buildConfig = {
bundle: true,
logLevel: "info",
entryPoints: [
path.join(__dirname, "src", "web", "shell", "shell"),
path.join(__dirname, "src", "web", "tests", "tests"),
path.join(__dirname, "src", "web", "benchmarks", "benchmarks"),
],
entryNames: dev ? "[name]" : "[name]-c$[hash]",
assetNames: "[name]-c$[hash]",
// target: "es6",
outdir: path.join(__dirname, "public/waforth/dist"),
external: ["fs", "stream", "util", "events"],
minify: !dev,
loader: {
".wasm": "binary",
".js": "jsx",
},
sourcemap: true,
metafile: true,
plugins: [wasmTextPlugin(), forthPlugin()],
};
const INDEX_TEMPLATE = `
`;
async function handleBuildFinished(result) {
let index = INDEX_TEMPLATE.replace(/\$BASE/g, "shell");
let testIndex = INDEX_TEMPLATE.replace(/\$BASE/g, "tests");
let benchmarksIndex = INDEX_TEMPLATE.replace(/\$BASE/g, "benchmarks");
// console.log(JSON.stringify(result.metafile.outputs, undefined, 2));
for (const [out] of Object.entries(result.metafile.outputs)) {
const outfile = path.basename(out);
const sourcefile = outfile.replace(/-c\$[^.]+\./, ".");
// console.log("%s -> %s", sourcefile, outfile);
index = index.replace(`/${sourcefile}`, `/${outfile}`);
testIndex = testIndex.replace(`/${sourcefile}`, `/${outfile}`);
benchmarksIndex = benchmarksIndex.replace(`/${sourcefile}`, `/${outfile}`);
}
await fs.promises.writeFile("public/waforth/index.html", index);
await fs.promises.mkdir("public/waforth/tests", { recursive: true });
await fs.promises.writeFile("public/waforth/tests/index.html", testIndex);
await fs.promises.mkdir("public/waforth/benchmarks", { recursive: true });
await fs.promises.writeFile(
"public/waforth/benchmarks/index.html",
benchmarksIndex
);
}
if (watch) {
// Simple static file server
createServer(async function (req, res) {
let f = path.join(__dirname, "public", req.url);
try {
if ((await fs.promises.lstat(f)).isDirectory()) {
f = path.join(f, "index.html");
}
} catch (e) {
// pass
}
try {
const data = await fs.promises.readFile(f);
res.writeHead(200);
res.end(data);
} catch (err) {
res.writeHead(404);
res.end(JSON.stringify(err));
}
}).listen(8080);
console.log("listening on port 8080");
buildConfig = withWatcher(buildConfig, handleBuildFinished, 8081);
}
esbuild.build(buildConfig).then(handleBuildFinished, () => process.exit(1));