Owain Lewis owainlewis

Overview

This gist is based on the information available at golang/dep, only slightly more terse and annotated with a few notes and links primarily for my own personal benefit. It's public in case this information is helpful to anyone else as well.

I initially advocated Glide for my team and then, more recently, vndr. I've also taken the approach of exerting direct control over what goes into vendor/ in my Dockerfiles, and also work from isolated GOPATH environments on my system per project to ensure that dependencies are explicitly found under vendor/.

At the end of the day, vendoring (and committing vendor/) is about being in control of your dependencies and being able to achieve reproducible builds. While you can achieve this manually, things that are nice to have in a vendoring tool include:

Designing Systems and Applications

This is a short document of tips and notes I've accumulated while learning more about designing distributed systems and building concurrent applications. It is by no means definitive and merely scratches the surface of what is needed to be considered when designing an architecture expected to handle large scale traffic.

Distributed Systems

Scale out, not up

There reaches a point in your application's design where by merely throwing more hardware at the problem (i.e. "scaling up") will fail to resolve the scalability issues you're encountering.

The Learning Haskell guide has been moved to a git repo to enable outside contribution

Find it here: https://github.com/bitemyapp/learnhaskell

Deploy Rails 4 app with Dokku on DigitalOcean

Install dokku

First create a Ubuntu 13.04 x64 droplet on DigitalOcean Control Panel

Then ssh with root account, run this in termianl:

$ wget -qO- https://raw.github.com/progrium/dokku/master/bootstrap.sh | sudo bash

Deploy Rails app to digitalocean with nginx, unicorn, capistrano & postgres

Create droplet of your liking (ubuntu 12.10 x32)

ssh to root in terminal with your server ip

ssh [email protected]

Add ssh fingerprint and enter password provided in email

	import org.ensime.json.FamilyFormats
	import spray.json._

	object MainApp extends App {

	case class Foo(blah: String, blah2: Option[String])
	case class Bar(boo: List[Foo])

	val wat = Bar(Foo("dfsdf", Some("dsfd")) :: Foo("feefef", None) :: Nil)

	/*

	Overview
	--------

	To run a query using anorm you need to do three things:

	1. Connect to the database (with or without a transaction)
	2. Create an instance of `anorm.SqlQuery` using the `SQL` string interpolator
	3. Call one of the methods on `SqlQuery` to actually run the query

	//
	// API.swift
	//
	// Created by Taro Minowa on 6/10/14.
	// Copyright (c) 2014 Higepon Taro Minowa. All rights reserved.
	//

	import Foundation

	typealias JSONDictionary = Dictionary<String, AnyObject>

	package main

	import (
	"fmt"
	"github.com/gorilla/mux"
	"github.com/gorilla/securecookie"
	"net/http"
	)

	// cookie handling

	# coding=UTF-8
	from __future__ import division
	import re

	# This is a naive text summarization algorithm
	# Created by Shlomi Babluki
	# April, 2013


	class SummaryTool(object):