/**
* Workaround for https://github.com/oven-sh/bun/issues/27802
*
* Bun compiled binaries have an empty `process.env` when running inside
* sandbox environments (e.g. nono on Linux/macOS). On Linux we can recover
* the environment from `/proc/self/environ`.
*/
import { readFileSync } from "node:fs";
/**
* Restore environment variables from `/proc/self/environ` when running
* inside a sandbox where Bun's `process.env` is empty.
*/
export function restoreSandboxEnv(): void {
if (!process.versions?.bun) return;
// If process.env already has entries, nothing to fix.
if (Object.keys(process.env).length > 0) return;
try {
const data = readFileSync("/proc/self/environ", "utf-8");
for (const entry of data.split("\0")) {
const idx = entry.indexOf("=");
if (idx > 0) {
process.env[entry.slice(0, idx)] = entry.slice(idx + 1);
}
}
} catch {
// /proc/self/environ may not be readable; ignore.
}
}