import { chmod, mkdir, writeFile } from "node:fs/promises";
import { build } from "esbuild";

await mkdir("dist", { recursive: true });
await build({
  entryPoints: ["src/index.ts"],
  outfile: "dist/index.js",
  bundle: true,
  platform: "node",
  format: "esm",
  target: "node20",
  sourcemap: true,
  legalComments: "none",
  banner: { js: "#!/usr/bin/env node" },
});
await chmod("dist/index.js", 0o755);
// A legacy Python build may have left dist/.gitignore containing "*". npm uses
// this narrower file to include only the new bundled runtime in Release assets.
await writeFile("dist/.npmignore", "*\n!index.js\n!index.js.map\n", "utf8");