Function fetchProcessInfo

src/utils/process-tree.ts:39–70

(pid: string)

  };

  const fetchProcessInfo = async (pid: string): Promise<ProcessTreeEntry | null> => {
    const command = ['-o', 'pid=,ppid=,comm=,args=', '-p', pid];
    const attempts = [
      { bin: '/bin/ps', label: 'Get process info (ps)' },
      { bin: 'ps', label: 'Get process info (ps fallback)' },
    ];

    for (const attempt of attempts) {
      try {
        const res = await executor([attempt.bin, ...command], attempt.label);
        if (!res.success) {
          lastError = res.error ?? `ps returned non-zero exit code for pid ${pid}`;
          continue;
        }
        const line = res.output.trim().split('\n')[0]?.trim();
        if (!line) {
          lastError = `ps returned no output for pid ${pid}`;
          continue;
        }
        const parsed = parseLine(line);
        if (!parsed) {
          lastError = `ps output was not parseable for pid ${pid}`;
          continue;
        }
        return parsed;
      } catch (error) {
        lastError = error instanceof Error ? error.message : String(error);
      }
    }

    return null;
  };

  while (currentPid && currentPid !== '0' && !seen.has(currentPid)) {
    seen.add(currentPid);