71 lines
2.6 KiB
JavaScript
71 lines
2.6 KiB
JavaScript
import { rm, stat } from "node:fs/promises";
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import { resolve, sep } from "node:path";
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import { build } from "esbuild";
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export const CLOUDFLARE_WORKER_OUTPUT_DIRECTORY = resolve(".wrangler/edgeever-worker");
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const normalizePath = (value) => value.replaceAll("\\", "/");
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export const buildCloudflareWorker = async () => {
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const generatedRoot = resolve(".wrangler");
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if (!CLOUDFLARE_WORKER_OUTPUT_DIRECTORY.startsWith(`${generatedRoot}${sep}`)) {
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throw new Error(
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`Refusing to clean unsafe Worker output path: ${CLOUDFLARE_WORKER_OUTPUT_DIRECTORY}`,
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);
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}
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await rm(CLOUDFLARE_WORKER_OUTPUT_DIRECTORY, { recursive: true, force: true });
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const result = await build({
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entryPoints: [resolve("apps/api/src/index.ts")],
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outdir: CLOUDFLARE_WORKER_OUTPUT_DIRECTORY,
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entryNames: "index",
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chunkNames: "modules/[name]-[hash]",
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bundle: true,
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splitting: true,
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format: "esm",
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platform: "browser",
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target: "es2022",
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conditions: ["workerd", "worker", "browser"],
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minify: true,
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keepNames: true,
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legalComments: "none",
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treeShaking: true,
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metafile: true,
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write: true,
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allowOverwrite: true,
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outExtension: { ".js": ".js" },
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});
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const outputs = await Promise.all(Object.entries(result.metafile.outputs).map(async ([path, metadata]) => ({
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path,
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bytes: (await stat(path)).size,
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entryPoint: metadata.entryPoint,
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imports: metadata.imports,
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})));
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const entry = outputs.find((output) =>
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normalizePath(output.entryPoint ?? "").endsWith("apps/api/src/index.ts"));
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const modules = outputs.filter((output) => normalizePath(output.path).includes("/modules/"));
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const dynamicImportPaths = new Set(
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entry?.imports.filter((item) => item.kind === "dynamic-import").map((item) => item.path) ?? [],
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);
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const lazyModules = modules.filter((module) =>
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Array.from(dynamicImportPaths).some((path) =>
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normalizePath(module.path).endsWith(normalizePath(path))));
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const sharedModules = modules.filter((module) => !lazyModules.includes(module));
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if (!entry || lazyModules.length === 0) {
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throw new Error("Cloudflare Worker build must produce one entrypoint and at least one on-demand module.");
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}
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console.log([
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`[worker-build] entry: ${(entry.bytes / 1024).toFixed(2)} KiB`,
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...sharedModules.map((module) =>
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`[worker-build] shared module: ${(module.bytes / 1024).toFixed(2)} KiB`),
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...lazyModules.map((module) =>
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`[worker-build] on-demand module: ${(module.bytes / 1024).toFixed(2)} KiB`),
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].join("\n"));
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return { entry, sharedModules, lazyModules };
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};
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if (import.meta.main) {
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await buildCloudflareWorker();
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}
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