Randall Reed, Jr. randallreedjr

To copy a Heroku ENV variable from one application to another, from a bash shell, run

heroku config:set MY_VAR="$(heroku config:get MY_VAR --app old-app-name)" --app new-app-name

Prerequisites

Verify latest Ruby version

Ruby downloads

Check local Ruby version (CLI)

$ ruby -v

If necessary, upgrade Ruby (CLI)

$ rvm get stable

Jekyll & Liquid Cheatsheet

A list of the most common functionalities in Jekyll (Liquid). You can use Jekyll with GitHub Pages, just make sure you are using the proper version.

Running

Running a local server for testing purposes:

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

	# Ruby CircleCI 2.0 configuration file
	#
	# Check https://circleci.com/docs/2.0/language-ruby/ for more details
	#
	version: 2
	jobs:
	build:
	docker:
	# specify the version you desire here
	- image: circleci/ruby:2.5.1-node-browsers

	require 'rails_helper'

	RSpec.describe HomeController, :type => :controller do

	describe "GET index" do

	it "renders the :index template" do
	expect(get: root_url(subdomain: nil)).to route_to(
	controller: "home",
	action: "index")

	class Product
	include Mongoid::Document

	field :price, type: Money
	end

	Money.class_eval do

	# Converts an object of this instance into a database friendly value.
	def mongoize