utils.ts

import { tmpdir } from 'os';
import { join } from 'path';
import { mkdir, readFileSync } from 'fs';

export function silenceLog() {
  const old = console.log;
  console.log = () => {
    return;
  };
  return () => {
    console.log = old;
  };
}

export async function makeDirectory(path: string): Promise<string> {
  return await new Promise((resolve, reject) => {
    mkdir(path, (err) => {
      if (err) {
        reject(err);
      }
      resolve(path);
    });
  });
}

export async function makeTmpDirectory(): Promise<string> {
  const dirname = join(
    tmpdir(),
    'TMP' +
      Math.random()
        .toString(36)
        .replace(/[^a-z0-9]+/g, '')
        .substr(2, 12),
  );
  return makeDirectory(dirname);
}

export function loadJson(filename: string) {
  return JSON.parse(readFileSync(filename, 'utf-8'));
}