shadowmaru

• Alda Rocha: Mulheres que falam e palestram
• Alex Braha Stoll: Ruby + Rust
• Anderson Dias: 3B de jobs no Sidekiq
• Andre Luis Anastacio: Effective Rails Instrumentation
• Artur Caliendo Prado: Grafana, StatsD e InfluxDB
• Bruno Alves: Arquitetura de micro serviços
• Camila Campos: Como não escrever seus testes
• Charlotte Lorelei Oliveira: [Tolerância a falhas com supervisor trees em Elixir](https://docs.google.com/presentation/d/e/2PACX-1vT8eAiVAgK5_aHBduO-P2Cb1QbeaX4DyvHAsDbgfKOt0lDVBEl4Qm_KeCx7mNGn7PS16gMgZ-ffLkrO/pub?start=false&loop=fa

ahmadhasankhan

Please visit https://asistencia.in/blogs/1-mysql-5-5-installation-guide

Thank you

eladnava

#!/bin/sh

# Make sure to:
# 1) Name this file `backup.sh` and place it in /home/ubuntu
# 2) Run sudo apt-get install awscli to install the AWSCLI
# 3) Run aws configure (enter s3-authorized IAM user and specify region)
# 4) Fill in DB host + name
# 5) Create S3 bucket for the backups and fill it in below (set a lifecycle rule to expire files older than X days in the bucket)
# 6) Run chmod +x backup.sh
# 7) Test it out via ./backup.sh

haskellcamargo

module Mortivacional where
import System.Console.ANSI

drawLine :: IO ()
drawLine = putStrLn $ replicate 23 '-'

turnRed :: IO ()
turnRed = setSGR [ SetConsoleIntensity BoldIntensity
                 , SetColor Foreground Vivid Red
                 ]

pixeltrix

When should you use DateTime and when should you use Time?

It's a common misconception that [William Shakespeare][1] and [Miguel de Cervantes][2] died on the same day in history - so much so that UNESCO named April 23 as [World Book Day because of this fact][3]. However because England hadn't yet adopted [Gregorian Calendar Reform][4] (and wouldn't until [1752][5]) their deaths are actually 10 days apart. Since Ruby's Time class implements a [proleptic Gregorian calendar][6] and has no concept of calendar reform then there's no way to express this. This is where DateTime steps in:

>> shakespeare = DateTime.iso8601('1616-04-23', Date::ENGLAND)
=> Tue, 23 Apr 1616 00:00:00 +0000
>> cervantes = DateTime.iso8601('1616-04-23', Date::ITALY)
=> Sat, 23 Apr 1616 00:00:00 +0000

tamoyal

# Be sure to save your config files. Optional but I do:
sudo cp /etc/postgresql/9.3/main/postgresql.conf ~
sudo cp /etc/postgresql/9.3/main/pg_hba.conf ~

# Package repo (for apt-get)
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" >> /etc/apt/sources.list.d/postgresql.list'

# Also probably optional but I like to update sources and upgrade
sudo apt-get update

mlanett

HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing

robotlolita

Objeto é a noção de uma entidade que é definida inteiramente pelo seu comportamento. E esse comportamento é dinâmicamente selecionado. Em outras palavras, eu "peço" um objeto para "andar," e como ele vai fazer isso é inteiramente definido pelo objeto.

O exemplo:

objeto.anda()

Captura bem essa idéia. Eu tenho uma mensagem "anda," mas eu não consigo dizer o que essa função faz direto do meu código, porque isso depende no comportamento dinâmico da execução do programa (em uma linguagem estáticamente tipada você consegue optimizar isso, mas o raciocínio do código continua o mesmo).

0xabad1dea

Abadidea's Index of Weird Machines in Video Games

A "weird machine" is when user-supplied input is able to create an arbitrary new program running within an existing program due to Turing-completeness being exposed. Sometimes such functionality was deliberately included but it is often the result of exploitation of memory corruption. You can learn more at the langsec site. There is a good argument for weird machines being inherently dangerous, but this index is just for fun.

It is broken into two categories: intentional gameplay features which may be used as weird machines, and exploit-based machines which can be triggered by ordinary player input (tool-assisted for speed and precision is acceptable). Games with the sole purpose of programming (such as Core Wars) are not eligible and plugin APIs don't count. If you know of more, feel free to add a comment to this gist.

Intentional Gameplay Mechanics

julionc

How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev