Function runPythonWithStdin

src/ast/extract-python.ts:557–590

(script: string, source: string, filename: string)

  pythonAvailable = false;
  return false;
}

import { spawn } from "node:child_process";

async function runPythonWithStdin(script: string, source: string, filename: string): Promise<any> {
  if (!(await findPython())) return null;

  return new Promise((resolve) => {
    const proc = spawn(pythonCmd, ["-c", script, filename], {
      timeout: 10000,
      env: { ...process.env, PYTHONDONTWRITEBYTECODE: "1" },
      stdio: ["pipe", "pipe", "pipe"],
    });

    let stdout = "";
    let stderr = "";

    proc.stdout.on("data", (data: Buffer) => { stdout += data.toString(); });
    proc.stderr.on("data", (data: Buffer) => { stderr += data.toString(); });

    proc.on("close", (code) => {
      if (code !== 0 || !stdout.trim()) {
        resolve(null);
        return;
      }
      try {
        resolve(JSON.parse(stdout.trim()));
      } catch {
        resolve(null);
      }
    });

    proc.on("error", () => resolve(null));

    proc.stdin.write(source);
    proc.stdin.end();