prasi-bun/pkgs/core/utils/parcel.ts

134 lines
4.0 KiB
TypeScript

import { spawn } from "bun";
import { dirAsync, inspectTreeAsync, writeAsync } from "fs-jetpack";
import { InspectTreeResult } from "fs-jetpack/types";
import { cache } from "../server/create";
import { dir } from "./dir";
import { g } from "./global";
import { lookup } from "mime-types";
import brotliPromise from "brotli-wasm";
const brotli = await brotliPromise;
const decoder = new TextDecoder();
export const parcelBuild = async () => {
await dirAsync("app/static");
const args = [
"node",
dir.path("node_modules/.bin/parcel"),
g.mode === "dev" ? "watch" : "build",
"./src/index.tsx",
g.mode === "dev" ? "--no-hmr" : "--no-optimize",
"--dist-dir",
dir.path(`app/static`),
];
if (g.mode === "prod") {
setTimeout(() => {
inspectTreeAsync(dir.path("app/static")).then((tree) => {
if (tree) {
const walk = async (item: InspectTreeResult, parent: string[]) => {
if (item.type === "file") {
let path = `${parent.slice(1).join("/")}/${item.name}`;
if (!path.startsWith("/")) path = `/${path}`;
if (!cache.static[path]) {
const file = Bun.file(dir.path(`/app/static${path}`));
cache.static[path] = {
type: lookup(path) || "text/plain",
content: await file.arrayBuffer(),
};
}
const found = cache.static[path];
const staticBr = Bun.file(dir.path(`app/static-br${path}`));
if (await staticBr.exists()) {
found.br = new Uint8Array(await staticBr.arrayBuffer());
} else {
const pubFile = Bun.file(dir.path(`/app/web/public${path}`));
const pubBr = Bun.file(dir.path(`/app/web/public-br${path}`));
if (await pubFile.exists()) {
if (await pubBr.exists()) {
found.br = new Uint8Array(await pubBr.arrayBuffer());
} else {
found.br = brotli.compress(
new Uint8Array(cache.static[path].content)
);
if (found.br) {
await writeAsync(
dir.path(`/app/web/public-br${path}`),
Buffer.from(found.br)
);
}
}
} else {
found.br = brotli.compress(
new Uint8Array(cache.static[path].content)
);
}
}
} else if (item.type === "dir") {
for (const child of item.children) {
await walk(child, [...parent, item.name]);
}
}
};
walk(tree, []);
}
});
}, 1000);
}
if (g.mode === "dev") {
g.log.info(`Building web with parcel`);
await new Promise<void>((resolve) => {
const parcel = spawn({
cmd: args,
cwd: dir.path("app/web"),
stdio: ["ignore", "pipe", "pipe"],
});
g.parcel = parcel;
let output = true;
let decoded = false;
(async () => {
if (parcel.stdout) {
for await (const chunk of parcel.stdout) {
if (!decoded && decoder.decode(chunk).includes("✨")) {
resolve();
decoded = true;
}
if (output) process.stdout.write(chunk);
}
}
})();
(async () => {
if (parcel.stderr) {
for await (const chunk of parcel.stderr) {
if (output) process.stderr.write(chunk);
}
}
})();
const cleanup = async () => {
output = false;
};
process.on("SIGINT", async () => {
await cleanup();
process.exit();
});
process.on("SIGTERM", async () => {
await cleanup();
process.exit();
});
process.on("beforeExit", async () => {
await cleanup();
});
});
}
};