Chris LoPresto chrislopresto

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

Hello, visitors! If you want an updated version of this styleguide in repo form with tons of real-life examples… check out Trellisheets! https://github.com/trello/trellisheets

Trello CSS Guide

“I perfectly understand our CSS. I never have any issues with cascading rules. I never have to use !important or inline styles. Even though somebody else wrote this bit of CSS, I know exactly how it works and how to extend it. Fixes are easy! I have a hard time breaking our CSS. I know exactly where to put new CSS. We use all of our CSS and it’s pretty small overall. When I delete a template, I know the exact corresponding CSS file and I can delete it all at once. Nothing gets left behind.”

You often hear updog saying stuff like this. Who’s updog? Not much, who is up with you?

	require 'net/http'
	module Net
	class HTTP
	def self.enable_debug!
	raise "You don't want to do this in anything but development mode!" unless Rails.env == 'development'
	class << self
	alias_method :__new__, :new
	def new(*args, &blk)
	instance = __new__(*args, &blk)
	instance.set_debug_output($stderr)

	class Avatar < ActiveRecord::Base

	attr_accessor :content_type, :original_filename, :image_data
	before_save :decode_base64_image

	has_attached_file :image,
	PAPERCLIP_CONFIG.merge(
	:styles => {
	:thumb => '32x32#',
	:medium => '64x64#',

	function get_avatar_from_service(service, userid, size) {
	// this return the url that redirects to the according user image/avatar/profile picture
	// implemented services: google profiles, facebook, gravatar, twitter, tumblr, default fallback
	// for google use get_avatar_from_service('google', profile-name or user-id , size-in-px )
	// for facebook use get_avatar_from_service('facebook', vanity url or user-id , size-in-px or size-as-word )
	// for gravatar use get_avatar_from_service('gravatar', md5 hash email@adress, size-in-px )
	// for twitter use get_avatar_from_service('twitter', username, size-in-px or size-as-word )
	// for tumblr use get_avatar_from_service('tumblr', blog-url, size-in-px )
	// everything else will go to the fallback
	// google and gravatar scale the avatar to any site, others will guided to the next best version

	# 0 is too far from ` ;)
	set -g base-index 1

	# Automatically set window title
	set-window-option -g automatic-rename on
	set-option -g set-titles on

	#set -g default-terminal screen-256color
	set -g status-keys vi
	set -g history-limit 10000

	Your name and email address were configured automatically based
	on your username and hostname. Please check that they are accurate.
	You can suppress this message by setting them explicitly:

	git config --global user.name "Your Name"
	git config --global user.email [email protected]

	After doing this, you may fix the identity used for this commit with:

	git commit --amend --reset-author

	# SSL self signed localhost for rails start to finish, no red warnings.

	# 1) Create your private key (any password will do, we remove it below)

	$ openssl genrsa -des3 -out server.orig.key 2048


	# 2) Remove the password

	$ openssl rsa -in server.orig.key -out server.key

	root_DN = /CN=Esotericsystems Root Authority/C=AT/
	issuing_DN = /CN=Esotericsystems Issuing Authority/C=AT/

	passphrase:
	echo -n changeme > $@

	#
	# Create param files, keys and Self-Signed Certificate for the Root CA
	#
	root-ca-dsa.param: passphrase

	spec_paths = Dir.glob(File.join("cookbooks", "devops_**", "spec"))

	guard :rspec,
	:spec_paths => spec_paths,
	:cli => "--color --format nested --fail-fast",
	all_on_start: false do


	# If a spec changes, run it
	watch(%r{^cookbooks/devops.*/spec/.+_spec\.rb$})