Function isProcessRunning

scripts/cache/lock.ts:24–32

* Checks if a process is still running (only works on same machine). * Uses Node.js process.kill(pid, 0) which doesn't actually kill but checks existence.

(pid: number)

 * Uses Node.js process.kill(pid, 0) which doesn't actually kill but checks existence.
 */
function isProcessRunning(pid: number): boolean {
    try {
        // Signal 0 doesn't kill, just checks if process exists
        process.kill(pid, 0);
        return true;
    } catch {
        return false;
    }
}

/**
 * Checks if a lock is stale based on Restic's algorithm: