KefDS

require 'pg' # gem install pg

# Wraps pg library calls
# Version: 1.2
# Use:
# 1) Methods of the class 
#   Example: postgres_connection.execute_query(sql_statement)
#
# 2) Use a pg library call with `interact` method and `connection` instance variable
#   Example: postgres_connection.interact { postgres_connection.connection.pg_method }

KefDS

Pequeña referencia acerca de Git y GitHub

Configurar Git

Configuración básica

	git config --global user.name "Usuario"				# Nombre de usuario
	git config --global user.email ejemplo@ejemplo.com 		# e-mail

KefDS

Notas sobre Ruby

Intérprete

Revisar errores de sintaxis

ruby -cw ej.rb

---

KefDS

Ruby on Rails

Inicio de un proyecto

1. $ rails new MySite this command created a new Rails app named MySite. It generated a number of files and folders that we will use to build the app.

2. $ bundle install This command installed all the software packages needed by the new Rails app. These software packages are called gems and they are listed in the file Gemfile.

3. $ rails server command started the Rails development server so that we could preview the app in the browser by visiting http://localhost:8000 or http://localhost:3000. This development server is called WEBrick.

KefDS

# Gem dependecies
gem install rubocop
gem install scss-lint
gem install coffee-script
npm install -g coffeelint
rbenv rehash

# Atom packages

# General

KefDS

#!/bin/bash -x
# Script for install Ruby and Rails (rbenv).
# Notes:
#   * Do not run with sudo because the rbenv directory will belong to root
#   * Change Ruby version and Rails if you wish.
#   * After the instalation, close and open again the terminal
# Created: 16/3/16

# rbenv dependencies
sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev -y

KefDS

Referrencia SSH

Pasar archivos por ssh

Local -> Server

scp /path/ user@SERVER_IP_ADDRESS:/path/

Server -> Local

KefDS

# Links:  https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-14-04
#         https://www.digitalocean.com/community/tutorials/additional-recommended-steps-for-new-ubuntu-14-04-servers

# Autenticarse como root
ssh root@SERVER_IP_ADDRESS

# Añadir usuario
adduser user

# Agregar el usuario al grupo suders

KefDS

#!/bin/bash
# Script that installs some packages for ubuntu-gnome
# Tested in Ubuntu 16.04

# Arc theme
sudo sh -c "echo 'deb http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04/ /' >> /etc/apt/sources.list.d/arc-theme.list"
wget http://download.opensuse.org/repositories/home:Horst3180/xUbuntu_16.04/Release.key
sudo apt-key add - < Release.key
rm Release.key
sudo apt-get update

KefDS

Bash function

Función para omitir escribir docker-compose exec --user "$(id -u):$(id -g). En .bashrc:

# Funcion para correr comandos en comandos en docker-compose
run() { docker-compose exec --user "$(id -u):$(id -g)" $1; }

Ejemplo de uso

run app rake db:create