searls

Organizing your codes

A few notes on how I organize my code lately. It's not the sexiest topic in the world but it matters, especially given that I keep about 160 repos cloned on my system at any given time.

Directory Layout

I've spent a couple years now trying to avoid the urge to mirror my personal code working space after github repo pathnames, but I'm a weak man and have given in.

When I want to clone a repo, I'll give it a directory matching the pattern ~/code/<owner>/<repo>.

branneman

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

xpepper

# username = "my_username"
# pwd = "my_password"        
# target_path = "my_target_path"
 
# saving auth cookie
system %Q{wget --save-cookies /tmp/cookie.txt --keep-session-cookies --post-data "username=#{username}&password=#{pwd}" -O - \
https://rubytapas.dpdcart.com/subscriber/login?__dpd_cart=d08391e6-5fe2-4400-8b27-2dc17b413027}
 
 
(25..600).each do |i|

bf4

# use inverse_of to 'just work'
class User < ActiveRecord::Base
  has_many :contributions, inverse_of: :user
  has_many :posts, through: :contributions
end

class Post < ActiveRecord::Base
  has_many :contributions, inverse_of: :post
  has_many :contributors, through: :contributions,
    source: :user

skwp

class Reverb::Actions::WatchListing
  def self.watch(user, product, listener)
    if product.owner?(user)
      listener.failure(I18n.t('flash.watchlist.error_own'))
    else
      Reverb::Analytics.track(user, :watch_product) # FIXME, this doesn't belong here
      user.user_watch_products.create(:product_id => product.id)
      listener.success
    end
  end

bkeepers

[alias]
  fixup = !sh -c 'REV=$(git rev-parse $1) && git commit --fixup $@ && git rebase -i --autosquash $REV^' -
  squash = !sh -c 'REV=$(git rev-parse $1) && git commit --squash $@ && git rebase -i --autosquash $REV^' -

mguterl

class TripsController < ApplicationController
  class Action < ApplicationController::Action
  end

  class New < Action
    expose(:trip) { Trip.new(params[:trip]) }
  end

  class Create < New
    def call

afeld

This list has been superseded by Public APIs. Check there for APIs with Auth: No, HTTPS and CORS Yes.

---

List of data APIs that require no server-side auth or private credentials, and are thus good for small browser-only JS projects.

• 3taps (information)
• Adobe Creative SDK (image editing)
• App.net
• Bing Maps

krisleech

class TripsController < ApplicationController
  class Action < ApplicationController::Action
  end

  class New < Action
    expose(:trip) { Trip.new(params[:trip]) }
  end

  class Create < New
    def call

mguterl

Latency Comparison Numbers
--------------------------
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
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms
Read 4K randomly from SSD*              150,000   ns    0.15 ms