post-build.mjs

#!/usr/bin/env node

import { readdir, readFile, writeFile } from "fs/promises";
import { join, dirname } from "path";
import { fileURLToPath } from "url";

const __dirname = dirname(fileURLToPath(import.meta.url));
const distDir = join(__dirname, "dist");

async function fixImports(dir) {
  const entries = await readdir(dir, { withFileTypes: true });

  for (const entry of entries) {
    const fullPath = join(dir, entry.name);

    if (entry.isDirectory()) {
      await fixImports(fullPath);
    } else if (entry.name.endsWith(".js")) {
      const content = await readFile(fullPath, "utf-8");
      const fixedContent = content
        .replace(/from\s+['"](\.[^'"]*)['"]/g, (match, path) => {
          if (path.endsWith(".js")) return match;
          return match.replace(path, path + ".js");
        })
        .replace(/import\s+['"](\.[^'"]*)['"]/g, (match, path) => {
          if (path.endsWith(".js")) return match;
          return match.replace(path, path + ".js");
        });

      if (content !== fixedContent) {
        await writeFile(fullPath, fixedContent);
        console.log(`Fixed imports in ${fullPath}`);
      }
    }
  }
}

fixImports(distDir).catch(console.error);