Rodolfo Spalenza spalenza

Installing and configuring Powerline-style command line tools for developers (OSX)

Intro:

For every developer, terminal is their weapon, so why don't you customize it to become a powerful, and a beautiful weapon?

Powerline style refers to a terminal style that helps developer to keep track of their workflow easily, allows them to have perfect visual on current directories and new changes. It is also git recognizable, and failure detector that will help your development process becomes more interact and much faster.

In this guideline, I will introduce you with 2 smart shells: Zsh and Fishshell. Both are perfect for the development jobs due to its rich of resources, and user-friendly.

Note:

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

Validação para cartão de crédito.

Bin e padrões para validação de cartão de crédito.

Bandeira	Começa com	Máximo de número	Máximo de número cvc
Visa	4	13,16	3
Mastercard	5	16	3

	#!/usr/bin/env ruby

	require_relative 'config/environment'

	path = ARGV.shift \|\| raise("specify migration as first argument")

	require_relative path

	filename = File.basename(path, ".rb")
	timestamp, name = filename.split("_", 2)

	if defined?(ActiveRecord::Base) && defined?(Authlogic)
	controller = ApplicationController.new
	require 'action_controller/test_case'
	controller.instance_variable_set(:@_request, ActionController::TestRequest.new)
	controller.instance_variable_set(:@_response, ActionController::TestResponse.new)
	Authlogic::Session::Base.controller = Authlogic::ControllerAdapters::RailsAdapter.new(controller)
	end

	UserSession.new( User.first )

	#!/usr/bin/env ruby

	# A sneaky wrapper around Rubocop that allows you to run it only against
	# the recent changes, as opposed to the whole project. It lets you
	# enforce the style guide for new/modified code only, as opposed to
	# having to restyle everything or adding cops incrementally. It relies
	# on git to figure out which files to check.
	#
	# Here are some options you can pass in addition to the ones in rubocop:
	#

	#Overrides the default way how rails marks form fields with errors.
	#In this version, it only adds the class 'error' to label and element

	ActionView::Base.field_error_proc = Proc.new do \|html_tag, instance\|
	if html_tag =~ /<(input\|label\|textarea\|select)/
	html_field = Nokogiri::HTML::DocumentFragment.parse(html_tag)
	html_field.children.add_class 'error'
	html_field.to_s
	else
	html_tag

	// Copyright (c) 2015, Brad Conte (http://bradconte.com)
	// All rights reserved.
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are met:
	// * Redistributions of source code must retain the above copyright
	// notice, this list of conditions and the following disclaimer.
	// * Redistributions in binary form must reproduce the above copyright
	// notice, this list of conditions and the following disclaimer in the
	// documentation and/or other materials provided with the distribution.

	class Medium < ActiveRecord::Base
	serialize :payload, JSON
	end

	#!/bin/bash

	if [ -z $1 ] ; then
	SQL="
	SELECT
	CONCAT(table_schema, '.', table_name) 'Table',
	CONCAT(ROUND(( data_length + index_length ) / ( 1024 * 1024 * 1024 ), 2), 'G') 'Tot Size',
	CONCAT(ROUND(table_rows / 1000000, 2), 'M') 'Rows',
	CONCAT(ROUND(data_length / ( 1024 * 1024 * 1024 ), 2), 'G') 'Data',
	CONCAT(ROUND(index_length / ( 1024 * 1024 * 1024 ), 2), 'G') 'Idx',