chore: simplify frontend verification

scripts/bundle-budget.mjs

@@ -1,5 +1,5 @@
 import { statSync } from "node:fs";
-import { readFile, writeFile } from "node:fs/promises";
+import { readFile } from "node:fs/promises";
 import { resolve } from "node:path";
 import { pathToFileURL } from "node:url";
 
@@ -64,41 +64,8 @@ function assertBundleBudget(initialBytes) {
 	}
 }
 
-function getLazyRouteAssetSizes(manifest, getSize, baseline) {
-	const routeEntries = manifestEntries(manifest).filter(
-		([, entry]) =>
-			entry?.isDynamicEntry === true && typeof entry.src === "string",
-	);
-	if (routeEntries.length === 0) {
-		throw new Error("Vite manifest must contain lazy route chunks");
-	}
-
-	const routeSizes = Object.fromEntries(
-		routeEntries
-			.map(([entryName, entry]) => [
-				entry.src,
-				getSize(assetFile(entry, entryName)),
-			])
-			.sort(([left], [right]) => left.localeCompare(right)),
-	);
-	if (!baseline) return routeSizes;
-
-	for (const [route, size] of Object.entries(routeSizes)) {
-		if (!Number.isSafeInteger(baseline[route])) {
-			throw new Error(`Missing baseline for lazy route chunk '${route}'`);
-		}
-		if (size > baseline[route]) {
-			throw new Error(
-				`Lazy route chunk '${route}' is ${size} bytes; baseline is ${baseline[route]} bytes`,
-			);
-		}
-	}
-	return routeSizes;
-}
-
 const distributionDirectory = resolve("dist");
 const manifestPath = resolve(distributionDirectory, "bundle-manifest.json");
-const baselinePath = resolve("scripts/lazy-route-bundle-baseline.json");
 
 async function loadJson(path) {
 	return JSON.parse(await readFile(path, "utf8"));
@@ -108,27 +75,13 @@ function getAssetSize(file) {
 	return statSync(resolve(distributionDirectory, file)).size;
 }
 
-async function run(mode) {
+async function run() {
 	const manifest = await loadJson(manifestPath);
 	const initialBytes = measureAssets(
 		getInitialAssetFiles(manifest),
 		getAssetSize,
 	);
 	assertBundleBudget(initialBytes);
-	const baseline =
-		mode === "baseline" ? undefined : await loadJson(baselinePath);
-	const lazyRouteSizes = getLazyRouteAssetSizes(
-		manifest,
-		getAssetSize,
-		baseline,
-	);
-
-	if (mode === "baseline") {
-		await writeFile(
-			baselinePath,
-			`${JSON.stringify(lazyRouteSizes, null, "\t")}\n`,
-		);
-	}
 	console.log(`Initial JavaScript payload: ${initialBytes} bytes`);
 }
 
@@ -136,17 +89,12 @@ if (
 	process.argv[1] &&
 	import.meta.url === pathToFileURL(process.argv[1]).href
 ) {
-	const mode = process.argv[2] ?? "check";
-	if (mode !== "check" && mode !== "baseline") {
-		throw new Error("Usage: node scripts/bundle-budget.mjs [check|baseline]");
-	}
-	await run(mode);
+	await run();
 }
 
 export {
 	assertBundleBudget,
 	getInitialAssetFiles,
-	getLazyRouteAssetSizes,
 	INITIAL_BUNDLE_BUDGET_BYTES,
 	measureAssets,
 };