yurynix

/*
Usage example:
request({
    url: tarballUrl,
    headers: registry.headers,
    dataHandler: dataBuffer => {
      if (shasum) {
        shasum.update(dataBuffer);
      }
      byteCount += dataBuffer.length;

yurynix

#!/bin/bash
scutil_primary_output=$(scutil << EOF
get State:/Network/Global/IPv4
d.show
EOF)

primary_interface=$(echo $scutil_primary_output | sed -n 's/.*PrimaryInterface : \([a-z0-9]*\).*/\1/p')
primary_service=$(echo $scutil_primary_output | sed -n 's/.*PrimaryService : \([A-Z0-9-]*\).*/\1/p')
#echo $primary_interface $primary_service
#exit;

yurynix

…
 const processStats = await getProcessStats();
 printProcessStats(processStats);
 processStats.forEach(processInfo => {
 console.log(`Sending SIGKILL to pid: ${processInfo.pid} exe: ${processInfo.exe}`);
 process.kill(processInfo.pid, 'SIGKILL');
 });
…

yurynix

try {
 await downloadAndExtract(…);
} catch (ex) {
 const errorMessage = ex.message;
 if (errorMessage.indexOf('ENOSPC') > -1) {
  console.log('Got ENOSPC! Check out df output:\n', await exec('df -h'));
 }
 throw ex;
}

yurynix

console.log('Open FDs:', JSON.stringify(await getAllProcessFds()));

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console.log(await exec('du -h / 2>&1 | grep -v "Permission denied"'));

yurynix

const util = require('util');
const fs = require('fs');

const readfile = util.promisify(fs.readFile);
const readdir = util.promisify(fs.readdir);
const readlink = util.promisify(fs.readlink);
const stat = util.promisify(fs.stat);

async function getProcessRSSMemory(pid) {
  try {

yurynix

const child_process = require('child_process');
const util = require('util');
const fs = require('fs');

const readfile = util.promisify(fs.readFile); 
const readdir = util.promisify(fs.readdir);
const readlink = util.promisify(fs.readlink);

async function getRunningPids(): Promise<number[]> {
  const files = await readdir(`/proc`);

yurynix

Create a certificate authority for dev purposes

This instructions allow you to create a root Certificate Authority and issue a certificate to "localhost", to improve local development expirience. Those instrusctions assume you use macOS

1. create a root CA
2. create certificate
3. sign the certificate with root CA we created at (1)
4. add root CA to the keychain via security

yurynix

// based on https://unix.stackexchange.com/questions/15509/whos-consuming-my-inotify-resources/426001#426001
const fs = require('fs');
const { promisify } = require('util');

const readdirAsync = promisify(fs.readdir);
const readFileAsync = promisify(fs.readFile);
const readlinkAsync = promisify(fs.readlink);

(async function () {
    if (process.platform !== 'linux') {