/**
 * 低端 VPS / 小内存环境：限制 Node 堆、开启 Next 低内存构建选项。
 * 用法：pnpm build（默认经本脚本）
 * 可选环境变量：
 *   NEXT_BUILD_HEAP_MB — Node --max-old-space-size（默认 1536）
 */
const { spawnSync } = require("child_process");
const path = require("path");

const heapMb = process.env.NEXT_BUILD_HEAP_MB || "1536";
const nextBin = path.join(
  path.dirname(require.resolve("next/package.json")),
  "dist",
  "bin",
  "next"
);

const result = spawnSync(
  process.execPath,
  ["--max-old-space-size=" + heapMb, nextBin, "build"],
  {
    stdio: "inherit",
    env: {
      ...process.env,
      NEXT_BUILD_LOW_MEM: "1",
    },
  }
);

process.exit(result.status ?? 1);