Files
Reactive-Resume/apps/server/tsdown.config.ts
T
Amruth Pillai 725be158c0 feat(deploy): deploy Vercel as frontend and backend services
Vercel now deploys Reactive Resume as two services in one project:
`frontend` serves the static Vite build from apps/web/dist, and
`backend` runs the Hono server Function from apps/server. Top-level
rewrites send server-owned paths (/api, /uploads, /mcp, /.well-known,
robots.txt, sitemap.xml, llms.txt, schema.json, index.html) and every
path without a file extension to `backend`, so HTML shells keep their
injected SEO metadata. Paths with a file extension go to `frontend`.

The service builder needs a few accommodations:

- apps/server/vercel.mjs replaces api/index.mjs as the entrypoint,
  because a service entrypoint must exist before the build runs.
- `outputDirectory: "."` stops the builder from using the Docker
  entrypoint in dist/ as the Function handler.
- The builder loads external CommonJS dependencies through pnpm links
  that it leaves out of the Function. ioredis and react-reconciler are
  now bundled with their dependencies, and bcrypt is replaced with
  bcryptjs, which reads and writes the same $2b$ hashes.

The Vercel compatibility workflow now builds with the services
framework and loads a copy of the backend Function outside the
checkout, so a dependency missing from the Function fails CI. The stale
PDFKit trace checks are removed.

Existing Vercel installations must set Framework Preset to Services
before redeploying; the self-hosting guide documents this.
2026-09-30 00:17:24 +02:00

109 lines
3.2 KiB
TypeScript

import type { TsdownPlugin } from "tsdown";
import { readdirSync, readFileSync } from "node:fs";
import { dirname, resolve } from "node:path";
import { fileURLToPath } from "node:url";
import { defineConfig } from "tsdown";
const rootPackageJson = JSON.parse(readFileSync(new URL("../../package.json", import.meta.url), "utf-8")) as {
version?: string;
};
// Lambda disables require(ESM) and uses stricter CJS export detection than standalone Node. Vercel's service builder
// also loads external CommonJS packages through pnpm links it leaves out of the Function, so CommonJS dependencies
// (ioredis, react-reconciler) are bundled together with their own dependencies.
const bundledInteropPackages = new Set([
"ioredis",
"@ioredis/commands",
"cluster-key-slot",
"debug",
"ms",
"denque",
"redis-errors",
"standard-as-callback",
"react-reconciler",
"scheduler",
"@uiw/color-convert",
"@babel/runtime",
"sanitize-html",
"htmlparser2",
"domhandler",
"domutils",
"domelementtype",
"dom-serializer",
"entities",
"deepmerge",
"escape-string-regexp",
"is-plain-object",
"parse-srcset",
"postcss",
"nanoid",
"picocolors",
"source-map-js",
"launder",
"dayjs",
]);
const packageNameOf = (id: string) =>
id
.split("/")
.slice(0, id.startsWith("@") ? 2 : 1)
.join("/");
// Matches subpath imports too, such as `react-reconciler/constants.js`.
const shouldBundle = (id: string) =>
id.startsWith("@reactive-resume/") || bundledInteropPackages.has(packageNameOf(id));
const shouldExternalizeThirdParty = (id: string) => {
if (shouldBundle(id)) return false;
// Subpath imports (`#…`) are resolved by the workspace package that declares them, so they're bundled with it.
if (id.startsWith("@/") || id.startsWith("#") || id.startsWith(".") || id.startsWith("/") || id.startsWith("\0"))
return false;
return true;
};
const aiPromptsDir = resolve(dirname(fileURLToPath(import.meta.url)), "../../packages/ai/src/prompts");
const promptAssetsPlugin: TsdownPlugin = {
name: "prompt-assets",
buildStart() {
for (const filename of readdirSync(aiPromptsDir)) {
if (!filename.endsWith(".md")) continue;
this.emitFile({
type: "asset",
fileName: `prompts/${filename}`,
source: readFileSync(resolve(aiPromptsDir, filename), "utf-8"),
});
}
},
};
export default defineConfig({
entry: {
index: "src/index.ts",
vercel: "src/vercel.ts",
"prepare-deployment": "src/prepare-deployment.ts",
"migrate-legacy-styles": "src/migrate-legacy-styles.ts",
},
// Keep import.meta.url-based asset lookup adjacent to the entrypoints.
outputOptions: { chunkFileNames: "[name]-[hash].mjs" },
format: "esm",
platform: "node",
target: "node24",
outDir: "dist",
clean: true,
shims: true,
dts: false,
define: { __APP_VERSION__: JSON.stringify(rootPackageJson.version ?? "0.0.0") },
// The flagged dynamic imports are deliberate: they defer evaluation of env-dependent
// modules so tests can run without env vars, not to split chunks.
suppressWarnings: [/dynamic import will not move module into another chunk/],
outExtensions: () => ({ js: ".mjs" }),
deps: {
alwaysBundle: shouldBundle,
neverBundle: shouldExternalizeThirdParty,
},
plugins: [promptAssetsPlugin],
});