Andre Castoldi avcastoldi

gpg-agent setup

Need to setup gpg-agent first, on OSX I use keychain (it also does ssh-agent)

$ brew info keychain
keychain: stable 2.8.5
User-friendly front-end to ssh-agent(1)
https://www.funtoo.org/Keychain
/usr/local/Cellar/keychain/2.8.5 (7 files, 108.5KB) *

Minitest and Database Cleaner

test_helper.rb

require 'database_cleaner'
require 'database_cleaner_support'

DatabaseCleaner.clean_with :truncation
DatabaseCleaner.strategy = :transaction

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

Github : Signing commits using GPG (Ubuntu/Mac) 🔐

Do you have an Github account ? If not create one.
Install required tools
Latest Git Client
gpg tools

# Ubuntu
sudo apt-get install gpa seahorse
# MacOS with https://brew.sh/

Install a new Ruby with rbenv on Mac OS (and make yourself a superhero)

If you're doing stuff with Ruby on a Mac, e.g. installling Jekyll or something, by default you'll end up having to use the sudo command to do stuff, since the permission to modify the default config is not available to your user account.

This sucks and should be avoided. Here's how to fix that.

Installing a new Ruby

To make this better, we are going install a new, custom Ruby. This used to be a big, scary thing, but thanks to the awesome tools Homebrew and rbenv, it's a snap.*

A word of warning: you will have to use Terminal to install this stuff. If you are uncomfortable with text, words, and doing stuff with your computer beyond pointing and hoping, this may not work well for you. But if that's the case, I'm not sure why you were trying to use Ruby in the first place.

Pry Cheat Sheet

Youtube Tutorial 2013

Command Line

pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
pry -r ./config/environment.rb - load your rails into a pry session

Debugger

	For troubleshooting, two things to first try:

	run `git config --global gpg.program gpg2`, to make sure git uses gpg2 and not gpg
	run `echo "test" \| gpg2 --clearsign`, to make sure gpg2 itself is working
	If that all looks all right, one next thing to try:

	run `brew install pinentry` to ensure you have a good tool installed for passphrase entry
	If after that install and you re-try git commit and still get the "failed to sign the data" error:

	run `gpgconf --kill gpg-agent` to kill any running agent that might be hung

	// A Declarative Pipeline is defined within a 'pipeline' block.
	pipeline {

	// agent defines where the pipeline will run.
	agent {
	// This also could have been 'agent any' - that has the same meaning.
	label ""
	// Other possible built-in agent types are 'agent none', for not running the
	// top-level on any agent (which results in you needing to specify agents on
	// each stage and do explicit checkouts of scm in those stages), 'docker',

	### Example #1 ###
	$ docker ps -a
	CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
	2e23d01384ac iperf-v1:latest "/usr/bin/iperf -s" 10 minutes ago Up 10 minutes 5001/tcp, 0.0.0.0:32768->5201/tcp compassionate_goodall
	# Append the container ID (CID) to the end of an inspect
	$ docker inspect --format '{{ .NetworkSettings.IPAddress }}' 2e23d01384ac
	172.17.0.1

	### Example #2 ###
	# Add -q to automatically parse and return the last CID created.

	HTTP status code symbols for Rails

	Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

	Status Code Symbol
	1xx Informational
	100 :continue
	101 :switching_protocols
	102 :processing