johnbintz

# be sure to comment out the require 'capistrano/deploy' line in your Capfile!

# config valid only for Capistrano 3.1
lock '3.2.1'

set :application, 'my-cool-application'

# the base docker repo reference
set :name, "johns-stuff/#{fetch(:application)}"

henrik

Yosemite upgrade notes

From a (mostly) Ruby on Rails developer.

After doing the below everything seems to work (some of it worked before doing anything), including Ruby, Gems, RVM, Homebrew, VirtualBox/Vagrant VMs, Pow, tmux, git, vim.

0. Did a full-disk backup that I can restore from
1. Moved out /usr/local to avoid super slow install, per option 1 in https://jimlindley.com/blog/yosemite-upgrade-homebrew-tips/: sudo mv /usr/local ~/local
2. Upgraded to Yosemite
3. Restored /usr/local, per option 1 in https://jimlindley.com/blog/yosemite-upgrade-homebrew-tips/: sudo mv ~/local /usr

henrik

# Note: upper bound is 12:01:59 (you could use second precision to get around this, e.g. "12:01:00")

time = Time.mktime(2014, 10, 14,  12, 1)

allowed_ranges = [
  "11:59".."12:01",
]
formatted_time = time.strftime("%H:%M")
p allowed_ranges.any? { |range| range.cover?(formatted_time) }

underhilllabs

There are a few additional steps I noticed to setting up a Sinatra app to work on Dokku. (These are probably also required for deploying an app to Heroku.)

original app.rb

require 'sinatra'

get '/' do
  "Your Sinatra app is not quite Dokku-fied!"
end

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

zenhob

#
# This module is a starter Ruby client for your REST API, based on Faraday:
# https://github.com/lostisland/faraday/
#
# It supports HTTP basic authentication, sending and recieving JSON, and simple error reporting.
# I use this as a basis for building API clients in most of my Ruby projects.
#
# Use it like this:
#
#     http = GenericApi.connect('http://localhost:3000/', 'myname', 'secret')

adamico

#app/inputs/collection_check_boxes_input.rb
class CollectionCheckBoxesInput < SimpleForm::Inputs::CollectionCheckBoxesInput
  def item_wrapper_class
    "checkbox-inline"
  end
end

damiann

Let’s Get Started

Our box is freshly hatched, virgin pixels at the prompt. I favor Ubuntu; if you use another version of linux, your commands may vary. Five minutes to go:

passwd

Change the root password to something long and complex. You won’t need to remember it, just store it somewhere secure - this password will only be needed if you lose the ability to log in over ssh or lose your sudo password.

apt-get update
apt-get upgrade

bantic

  class RouteRecognizer
    attr_reader :paths
    
    # To use this inside your app, call:
    # `RouteRecognizer.new.initial_path_segments`
    # This returns an array, e.g.: ['assets','blog','team','faq','users']

    INITIAL_SEGMENT_REGEX = %r{^\/([^\/\(:]+)}

    def initialize

jstorimer

This is a proof-of-concept of a couple of concurrent data structures written in Ruby.

The implementations are heavily commented for those interested. There are benchmarks (with results) included below. The results are interesting, but, as always, take with a grain of salt.

Data structures

AtomicLinkedQueue is a lock-free queue, built on atomic CAS operations.