Colin Wren colinfwren

Engineering Manager at Glean. Interested in building shared understanding, Agile & Development practises, Metal and Chiptune.

colinfwren / xXx_1337_haxXx0r.js

Created August 21, 2018 20:11

Script to get events from JSON and put them on page

	var getFormattedDate = function(distance){
	var days = Math.floor(distance / (1000 * 60 * 60 * 24));
	var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
	var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
	var seconds = Math.floor((distance % (1000 * 60)) / 1000);
	return days + "d " + hours + "h " + minutes + "m " + seconds + "s ";
	}

	var container = $('#demo');

colinfwren / safely_get_env_var.js

Last active February 6, 2019 20:30

Safely get Environment Variables

	const getEnvVar = (key, safeDefault) => {
	if (Object.prototype.hasOwnProperty.call(process.env, key) && !(typeof (process.env[key]) === 'undefined')) {
	return process.env[key];
	}
	return safeDefault;
	};

	// Use it like
	const config = {
	serverUrl: getEnvVar('SERVER_URL', 'http://localhost:8080')

colinfwren / example-controller.js

Created February 6, 2019 21:39

Example controller

	server.post('/test-runs', async (req, res, next) => {
	try{
	console.log('Kicking off test run');
	exec('npm test', (error, stdout, stderr) => {
	if (error) {
	console.error(`Error running tests: ${error.message}`);
	}
	console.log(stdout);
	console.error(stderr);
	});

colinfwren / couchbase_reporter_for_jest.js

Created February 6, 2019 23:22

Couchbase report for jest

	var couchbase = require('couchbase');

	class CouchbaseReporter {
	constructor(globalConfig, options) {
	this._globalConfig = globalConfig;
	this._options = options;
	const cluster = new couchbase.Cluster(`couchbase://127.0.0.1`);
	cluster.authenticate('genericUser', 'dontStealMe');
	this.bucket = cluster.openBucket('default');
	}

colinfwren / waitForTestResults.sh

Created February 6, 2019 23:25

	#!/usr/bin/env bash
	until $(curl --output /dev/null --silent --head --fail http://$HOST_IP:8080/test-runs/$TEST_RUN_ID) ; do
	echo "Still waiting for Schema Registry to become available";
	sleep 5;
	done;

colinfwren / polling_kafka_queue_for_messages.js

Created February 10, 2019 22:27

A recursive function to check that a Kafka queue has got a message

	/**
	* Sleep for the specified number of seconds
	*
	* @param {number} seconds - Number of seconds to sleep for
	* @returns {Promise}
	*/
	const sleep = async (seconds) => {
	return new Promise(resolve => {
	setTimeout(resolve, (seconds * 1000));
	});

colinfwren / Makefile

Created February 10, 2019 22:32

Getting the host's IP in a Makefile to populate into a docker-compose file

	#!/usr/bin/make

	run:
	HOST_IP=$(shell ifconfig en0 \| grep inet \| grep -v inet6 \| awk '{print $$2}') docker-compose -f confluent.yml up -d

	# In your docker-compose file you can use something like:
	# version: '3'
	# services:
	# zookeeper:
	# image: confluentinc/cp-zookeeper:5.1.0

colinfwren / using_kafka_mirror_maker.sh

Created February 10, 2019 23:13

Using Kafka Mirror Maker

	# Example contents of consumer.config
	bootstrap-servers=[KAFKA HOST]
	exclude.internal.topics=true
	group.id=mirror-maker
	auto.offset.reset=latest

	# Example contents of producer.config
	bootstrap-servers=[KAFKA HOST]
	acks=-1
	batch.size=100

colinfwren / mockingElectronStore.js

Created February 28, 2019 20:39

	export const setMock = jest.fn();
	export const getMock = jest.fn();

	const mock = jest.fn().mockImplementation(() => {
	return {
	set: setMock,
	get: getMock
	};
	});

colinfwren / settingUpTestReporter

Last active March 6, 2019 21:04