benjamintanweihao

import Enum

defmodule FibSolver do
  def fib(scheduler) do
    # This will send to the scheduler a ready message
    # once its done calculating. Notice the call to
    # fib(scheduler) which will invoke this line of 
    # code again.
    scheduler <- { :ready, self }

benjamintanweihao

require 'bundler/capistrano'
require 'capistrano-unicorn'
require 'sidekiq/capistrano'
require 'whenever/capistrano'
load 'config/recipes/base'
load 'config/recipes/cache'
load 'config/recipes/postgresql'
load 'config/recipes/redis'
load 'config/recipes/rails'
load 'config/recipes/seed'

benjamintanweihao

require "redis"

root = "/home/deployer/apps/qs/current"
working_directory root
pid "#{root}/tmp/pids/unicorn.pid"
stderr_path "#{root}/log/unicorn.log"
stdout_path "#{root}/log/unicorn.log"

listen "/tmp/unicorn.qs.sock"
worker_processes 7

benjamintanweihao

  command finished in 60385ms
  * executing "ls -1 /home/deployer/apps/qs/shared/assets/manifest* | wc -l"
    servers: ["xx.xx.xx.xx"]
    [xx.xx.xx.xx] executing command
    command finished in 941ms
  * executing "ls /home/deployer/apps/qs/shared/assets/manifest*"
    servers: ["xx.xx.xx.xx"]
    [xx.xx.xx.xx] executing command
    command finished in 1413ms
  * executing "ls -x /home/deployer/apps/qs/releases"

benjamintanweihao

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 root@123.123.123.123

Add ssh fingerprint and enter password provided in email

benjamintanweihao

defmodule Chat.Client do
  # In all of the following functions 'server' stands for the server's pid
  def join(server) do
    send server, :join
  end

  def say(server, message) do
    send server, { :say, message }
  end

benjamintanweihao

-module(download).
-compile(export_all).

%%
%% Include files
%%

%%
%% Exported Functions
%%

benjamintanweihao

#!/bin/bash

set -ex

BUILD_ENV=$1

rm -Rf public
mkdir -p public/styles

function bower_components() {

benjamintanweihao

init([]) ->
    Element = {sc_element, {sc_element, start_link, []},
               temporary, brutal_kill, worker, [sc_element]},
    Children = [Element],
    RestartStrategy = {simple_one_for_one, 0, 1},
    {ok, {RestartStrategy, Children}}.

benjamintanweihao

defmodule Ring do
  def run(member_count, loop_count, message) do
    log(:ringleader, "building ring with #{ member_count - 1 } more nodes...")
    next_pid = spawn_link(__MODULE__, :build_ring, [member_count - 2, self])

    log(:ringleader, "sending initial message to #{ inspect(next_pid) }...")
    next_pid <- {:message, message, loop_count}

    message_loop(next_pid)
  end