Michael Coyne mjc-gh

GPG - SSH setup

Generating the master key

Here we create the master key. We want only Certify capability: we use the master key only to create the subkeys, Sign - Encrypt - Authenticate capabilities will be assigned to the subkeys.

Run the following command to start the master key generation process. Select the set your own capabilities creation process (type 8)

  ▶ gpg --full-generate-key --expert

EVENT HANDLING

First source file you should be reading when trying to understand React Event System is ReactBrowserEventEmitter.js.

ReactEventListener

First the event is captured at the top-level ReactEventListener.

in the main thread

API

There are three easy to make mistakes in go. I present them here in the way they are often found in the wild, not in the way that is easiest to understand.

All three of these mistakes have been made in Kubernetes code, getting past code review at least once each that I know of.

Loop variables are scoped outside the loop.

What do these lines do? Make predictions and then scroll down.

func print(pi *int) { fmt.Println(*pi) }

Rails secrets management with Figaro and Capistrano

Use of figaro gem (or something like dotenv) in all environments.

The Figaro config/application.yml file with all the secrets will be git-ignored. So on every deployment server I had to manually add the file shared/config/application.yml and then linked automatically on each deployment to the current version of the app by adding in config/deploy.rb:

set :linked_files, %w{config/application.yml}

For development config/application.yml is something like the following:

Updated for Rails 4.0.0+

Bower

Set up the bower gem.
Follow the Bower instructions and list your dependencies in your bower.json, e.g.
```
// bower.json
```

{

	#!/usr/bin/env ruby

	ENV["RAILS_ENV"] = "test"
	require_relative "../config/environment"

	ResetsFixtures.new.call

	<style>
	body { display: flex; align-items: center; justify-content: center; }
	h1 { font-size: 60px; font-family: Helvetica; }
	</style>

	<script type="module">
	import { innerHTML, html, use } from 'https://diffhtml.org/master/diffhtml';
	import createLogger from 'https://diffhtml.org/master/diffhtml-middleware-logger';
	import inlineTransitions from 'https://diffhtml.org/master/diffhtml-middleware-inline-transitions';

	#!/usr/bin/env python

	"""
	Find host - decode hashed known_hosts files

	Using an unhashed known_hosts file as reference, compare by host
	key.
	"""

	import logging

	import angular from 'angular';
	import MyService from './myService';
	import myDirective from './myDirective';

	angular.module('myApp', [])
	.service('myService', MyService)
	.directive('myDirective', myDirective);

	require 'minitest/autorun'

	class Minitest::Test
	def self.test(name, &block)
	define_method "test_#{name.gsub(/\s+/, '_')}", &block
	end

	def self.setup(&block)
	define_method :setup, &block
	end