50 lines
1.9 KiB
JavaScript
50 lines
1.9 KiB
JavaScript
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// Rewrite import specifiers in the compiled dist/ so the output runs under
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// plain `node dist/index.js` (native ESM, no bundler / no tsx).
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//
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// Background: tsconfig uses moduleResolution:"bundler", so `tsc` emits BARE
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// relative specifiers WITHOUT extensions (e.g. `import "./router"`) and leaves
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// the `@/*` path-alias imports untouched. Node's native ESM resolver rejects
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// extensionless relative specifiers and knows nothing about the `@/` alias, so
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// the emitted dist/ crashes at startup (`ERR_MODULE_NOT_FOUND`). This script
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// fixes both:
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// 1. `@/foo` -> relative path to dist/foo.js
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// 2. `./foo` / `../foo` -> `./foo.js` / `../foo.js` (append .js)
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// Already-extensioned relative imports (.js/.json/.node/.mjs/.cjs) and bare
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// package specifiers are left untouched (idempotent).
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import { readFileSync, writeFileSync, existsSync, readdirSync } from "node:fs";
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import { join, relative, dirname } from "node:path";
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let count = 0;
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function walk(dir) {
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if (!existsSync(dir)) return;
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for (const e of readdirSync(dir, { withFileTypes: true })) {
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const p = join(dir, e.name);
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if (e.isDirectory()) walk(p);
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else if (e.name.endsWith(".js")) {
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const c = readFileSync(p, "utf8");
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const pat = /from\s+['"]([^'"]+)['"]/g;
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const n = c.replace(pat, (m, spec) => {
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if (spec.startsWith("@/")) {
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const target = join("dist", spec.slice(2)) + ".js";
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let rel = relative(dirname(p), target);
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if (!rel.startsWith(".")) rel = "./" + rel;
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return `from "${rel}"`;
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}
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if (
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(spec.startsWith("./") || spec.startsWith("../")) &&
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!/\.(js|json|node|mjs|cjs)$/.test(spec)
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) {
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return `from "${spec}.js"`;
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}
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return m;
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});
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if (n !== c) {
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writeFileSync(p, n);
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count++;
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}
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}
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}
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}
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walk("dist");
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console.log(`Fixed ${count} import specifiers in dist/`);
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