Vault tree / find script in js

vtree.mjs

# Usage: node vtree.mjs <backend>[/path] [MAX_CALL_TO_VAULT_PER_CICLE]
# example: node vtree.mjs kv-store/some-subfolder | grep mysecret

import { spawn } from "child_process";

const BASE_PATH = process.argv[2];
const MAX_PER_CICLE = process.argv[3] || 100;

const listVault = (basePath) =>
  new Promise((res, rej) => {
    const result = spawn("vault", ["kv", "list", "-format=json", basePath]);
    let buf = "";
    result.stdout.on("data", (data) => (buf += data));

    result.stderr.on("data", (data) => {
      process.stderr.write(`error: ${data}`);
    });

    result.on("close", (code) => {
      if (code === 0) {
        res(JSON.parse(buf).map((path) => `${basePath}${path}`));
      } else {
        rej(code);
      }
    });
  });

const basePath = /\/$/.test(BASE_PATH) ? BASE_PATH : `${BASE_PATH}/`;
const rlist = await listVault(basePath).catch(console.error);
let list = rlist.filter((path) => /\/$/.test(path));
let secrets = rlist.filter((path) => !/\/$/.test(path));
while (list.length != 0) {
  const paths = list
    .splice(0, MAX_PER_CICLE)
    .filter((path) => /\/$/.test(path));
  const results = (
    await Promise.all(paths.map((path) => listVault(path)))
  ).flat();
  const newSecrets = results.filter((path) => !/\/$/.test(path));
  const newDirs = results.filter((path) => /\/$/.test(path));
  secrets.map((s) => console.log(s));
  secrets.push(...newSecrets);
  list.push(...newDirs);
}