nahidakbar

const EVENTS_AT_A_TIME = 10;
const MAX_CHECK_INTERVAL = 500;
const WAIT_PER_EVENT = MAX_CHECK_INTERVAL / EVENTS_AT_A_TIME;

export function listenToEvents(knex, table, name, callback) {
  let lastEventId;

  const cursor = table + "::" + name;

  async function getCursorPosition(): Promise<number> {

nahidakbar

// produces unique enough base36 serial based on nanosecond time
function makeUpgradeCode() {
  const [nanoseconds, seconds] = process.hrtime();
  const time = (seconds * 1e6 + nanoseconds)
    .toString(26)
    .split('')
    .map(x => (parseInt(x, 26) + 10).toString(36))
    .concat(Math.random().toString(10).substring(2).split(''))
    .slice(0, 12);
  const [a, b, c, d, e, f, g, h, i, j, k, l] = time;

nahidakbar

const [ns, s] = process.hrtime();

const nsTime = (s * 1e6 + ns);

function encode(num, digits = 15, off = 0) {

  const rand = off ? Math.random().toString(26).substring(1, 1 + off) : '';
  const str = (num.toString(26) + rand).split('');
  let input = str.map(ch => ch === '.' ? '-' : (parseInt(ch, 26) + 10).toString(36)).join('').toUpperCase();

nahidakbar

Extend size of disk and then boot into vm.

# fix up partition size
sudo parted -l

Fix

# file up partition
sudo fdisk /dev/sda

nahidakbar

const fs = require("fs");
const path = require("path");

const FILE_REGEXP = /^([a-z]+)-([a-z_]+)-.*[.]csv$/;

const filename = process.argv[process.argv.length - 1] || '';
const basename = path.basename(filename);
if (!filename || !basename || !basename.match(FILE_REGEXP)) {
  throw Error('A csv file input must be specified of the format <centreId>-<parkerType>-<date>.csv. E.g. kotara-westfield_secondary-2021-01-01.csv');
}