Pat Collins patcoll

Use yarn with Greenkeeper

When using yarn, it will create a yarn.lock lockfile which holds data on your used dependencies. This file also includes hard-typed versions, so should you update your dependencies, the yarn.lock file is basically outdated and needs to be regenerated. While yarn does this automatically, Greenkeeper pull requests that update dependencies as of right now do not do this regeneration, which means you would have to do it manually.

This gist shows you a way how to automatise this step using a Travis CI script.

Prerequisites

You use Travis CI and have it build Pull Requests (default behaviour)
You have a yarn.lock file in your repository for Travis CI to automatically install yarn (yarn will be added to their default images soon)

Getting started

Background

Solutions I've tried

Git repo directly checked out in home directory
- Noisy
- Have to ignore *, everything is a --force
- Juggling machine variations is a pain
Homesick / Homeshick

Don't use VPN services.

No, seriously, don't. You're probably reading this because you've asked what VPN service to use, and this is the answer.

Note: The content in this post does not apply to using VPN for their intended purpose; that is, as a virtual private (internal) network. It only applies to using it as a glorified proxy, which is what every third-party "VPN provider" does.

A Russian translation of this article can be found here, contributed by Timur Demin.
A Turkish translation can be found here, contributed by agyild.
There's also this article about VPN services, which is honestly better written (and has more cat pictures!) than my article.

	#!/bin/bash

	set -ex

	google-chrome --version
	wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub \| sudo apt-key add -
	sudo sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
	sudo apt-get update
	sudo apt-get --only-upgrade install google-chrome-stable
	google-chrome --version

	// @flow weak

	import raven from 'raven-js';
	import config from 'config';

	const SENTRY_DSN = 'https://[email protected]/YYYY';

	function sendQueue() {
	const sentryOffline = JSON.parse(window.localStorage.sentryOffline);

	# This makes sure Chrome is always up to date in your test suite
	# On average this adds about 10 seconds to your build suite
	# Be sure to use Ubuntu 14.04 (Trusty) in the CircleCI's OS setting (Settings > Build Environment)
	dependencies:
	pre:
	- curl -L -o google-chrome.deb https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
	- sudo dpkg -i google-chrome.deb
	- sudo sed -i 's\|HERE/chrome\"\|HERE/chrome\" --disable-setuid-sandbox\|g' /opt/google/chrome/google-chrome
	- rm google-chrome.deb

	'''
	http://www.fogcreek.com/jobs/dev

	Find a 9 letter string of characters that contains only letters from: acdegilmnoprstuw

	such that the hash(the_string) is: 945924806726376

	if hash is defined by the following pseudo-code:

	Int64 hash (String s) {

	# Get ISO and verify signature
	# - https://wiki.archlinux.org/index.php/Installation_guide#Verify_signature
	# ============================

	# https://www.archlinux.org/download/
	gpg --keyserver-options auto-key-retrieve --verify archlinux-version-x86_64.iso.sig

	# Preparing bootable USB
	# - https://wiki.archlinux.org/index.php/USB_flash_installation_medium#Using_basic_command_line_utilities
	# ======================

	import Ember from 'ember';
	import { all, task, timeout } from 'ember-concurrency';

	export default Ember.Route.extend({

	serverStatusLoopTask: task(function *() {
	let { servers } = this.modelFor('servers');
	while (true) {
	yield timeout(5 * 1000);
	yield all(servers.map(::(this.get('fetchServerStatusTask')).perform));

	// ...
	var app = new EmberApp(defaults, {
	hinting: false,

	babel: {
	includePolyfill: true,
	optional: [
	"es7.decorators",
	"es7.classProperties",
	"es7.asyncFunctions"