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server/bundle/scripts/build.js

104 lines
3.3 KiB
JavaScript

const { spawn } = require("child_process");
const path = require("path");
const fs = require("fs");
const { performance } = require("perf_hooks");
let parts = "api,cdn,gateway,bundle".split(",");
const tscBin = path.join(__dirname, "..", "..", "util", "node_modules", "typescript", "bin", "tsc");
const swcBin = path.join(__dirname, "..", "..", "util", "node_modules", "@swc", "cli", "bin", "swc");
// because npm run is slow we directly get the build script of the package.json script
function buildPackage(dir) {
const element = path.basename(dir);
return require("esbuild").build({
entryPoints: walk(path.join(dir, "src")),
bundle: false,
outdir: path.join(dir, "dist"),
target: "es2021",
// plugins don't really work because bundle is false
keepNames: false,
tsconfig: path.join(dir, "tsconfig.json"),
});
}
const importPart = /import (\* as )?(({[^}]+})|(\w+)) from ("[.\w-/@q]+")/g;
const importMod = /import ("[\w-/@q.]+")/g;
const exportDefault = /export default/g;
const exportAllAs = /export \* from (".+")/g;
const exportMod = /export ({[\w, ]+})/g;
const exportConst = /export (const|var|let) (\w+)/g;
const exportPart = /export ((async )?\w+) (\w+)/g;
// resolves tsconfig paths + rewrites es6 imports/exports to require (because esbuild/swc doesn't work properly)
function transpileFiles() {
for (const part of ["gateway", "api", "cdn", "bundle"]) {
const files = walk(path.join(__dirname, "..", "..", part, "dist"));
for (const file of files) {
let content = fs.readFileSync(file, { encoding: "utf8" });
content = content
.replace(
new RegExp(`@fosscord/${part}`),
path.relative(file, path.join(__dirname, "..", "..", part, "dist")).slice(3)
)
.replace(importPart, `const $2 = require($5)`)
.replace(importMod, `require($1)`)
.replace(exportDefault, `module.exports =`)
.replace(exportAllAs, `module.exports = {...(module.exports)||{}, ...require($1)}`)
.replace(exportMod, "module.exports = $1")
.replace(exportConst, `let $2 = {};\nmodule.exports.$2 = $2`)
.replace(exportPart, `module.exports.$3 = $1 $3`);
fs.writeFileSync(file, content);
}
}
}
function util() {
// const child = spawn("node", `${swcBin} src --out-dir dist --sync`.split(" "), {
const child = spawn("node", `\"${tscBin}\" -b .`.split(" "), {
cwd: path.join(__dirname, "..", "..", "util"),
env: process.env,
shell: true,
});
function log(data) {
console.log(`[util] ` + data.toString().slice(0, -1));
}
child.stdout.on("data", log);
child.stderr.on("data", log);
child.on("error", (err) => console.error("util", err));
return child;
}
const start = performance.now();
async function main() {
console.log("[Build] starting ...");
util();
await Promise.all(parts.map((part) => buildPackage(path.join(__dirname, "..", "..", part))));
transpileFiles();
}
main();
process.on("exit", () => {
console.log("[Build] took " + Math.round(performance.now() - start) + "ms");
});
function walk(dir) {
var results = [];
var list = fs.readdirSync(dir);
list.forEach(function (file) {
file = dir + "/" + file;
var stat = fs.statSync(file);
if (stat && stat.isDirectory()) {
/* Recurse into a subdirectory */
results = results.concat(walk(file));
} else if (file.endsWith(".ts") || file.endsWith(".js")) {
/* Is a file */
results.push(file);
}
});
return results;
}