iain

require 'logger'
$logger = Logger.new(STDOUT)

require 'active_support/cache'
$cache = ActiveSupport::Cache.lookup_store(:memory_store)
$cache.logger = $logger
$cache.clear

class EtagMiddleware

paulmillr

Most active GitHub users (git.io/top)

The count of contributions (summary of Pull Requests, opened issues and commits) to public repos at GitHub.com from Wed, 21 Sep 2022 till Thu, 21 Sep 2023.

Only first 1000 GitHub users according to the count of followers are taken. This is because of limitations of GitHub search. Sorting algo in pseudocode:

githubUsers
 .filter(user => user.followers > 1000)

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

ptaoussanis

(def ^:private gc-sm-cache!                                                                                                                                                          
  "Maintains maximum cache size by intelligently pruning less valuable items."
  (let [gc-running? (atom false)]                                                                                                                                                 
    (fn [cache ttl max-items now]                                                                                                                                                  
      (when-not @gc-running?                                                                                                                                                      
        (reset! gc-running? true)                                                                                                                                                 
        (let [snapshot @cache                 

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

bastien

# Model using the ghostscript processor
class Content < ActiveRecord::Base
  
  has_attached_file :resource,
                    :styles => { :preview => ["725x1200>", :jpg], :thumb => ["100x140>", :jpg] },
                    :processors => [:ghostscript, :thumbnail],
                    :convert_options => { :all => '-colorspace RGB -flatten -density 300 -quality 100' }, 
                    :path => ":page_path/:class/:id/:resource_token/:style/:filename"
end

xdite

1. Get You a Hug, Every Friday

FridayHug.com http://fridayhug.com

2. Run From a Single File

The Smallest Rails App http://thesmallestrailsapp.com

%w(action_controller/railtie coderay).each &method(:require)

jeroenr

source 'https://rubygems.org'

gem 'rails', '3.2.3'

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
  # See https://github.com/sstephenson/execjs#readme for more supported runtimes

piscisaureus

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

pmarreck

# Some code that lets you quickly erect objects and their attributes with a params hash

class InvalidAutoInitializeParamError < StandardError; end

class Object
  class << self
    alias new_without_auto_initialize new
    def new_with_auto_initialize(*args,&block)
      a1 = args.first