danielalvarenga

package fileline

import (
	"fmt"
	"os"
	"runtime"
	"strings"
)

//Location returns an absolute path of the caller file and the line number.

danielalvarenga

Docker fast start containeres

Start a MySQL DB:

docker run -d --name local-mysql -v mysql:/var/lib/mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=root mysql:5.7

Start a PostgresSQL DB:

danielalvarenga

Golang tests commands

Run tests:

go test

Run verbose tests:

danielalvarenga

Go (Golang) GOOS and GOARCH

All of the following information is based on go version go1.14.7 darwin/amd64.

A list of valid GOOS values

(Bold = supported by go out of the box, ie. without the help of a C compiler, etc.)

• aix
• android

danielalvarenga

mysql2 gem + mariadb + Alpine Linux

tl;dr Use mariadb-dev. In case of Alpine Linux 3.8, 3.9, use mysql2 >= 0.4.10.

Starting with Alpine Linux 3.8 there are basically 2 options to install the mysql2 gem:

1.sh:

danielalvarenga

#!/bin/bash

# Author: Daniel Alvarenga Lima
# Ubuntu version supported: 20.04 LTS amd64

# EXECUTE
# sudo chmod +x script-configure-ubuntu18.94-amd64.sh
# ./script-configure-ubuntu20.04-amd64.sh

#INSTRUCTIONS

danielalvarenga

Binary UUIDs are much more efficient in space and lookups compared to VARCHAR or CHAR UUIDs. To better exmplain how they work I have a few examples of raw sql and how that translates in a programming language like Ruby using the UUID tools module. All examples will reference the following database table and schema.

Table name: users

 id          :uuid(16)
 first_name  :string(255)
 last_name :string(255)

danielalvarenga

# Simple approach to sending email from the Rails console
# Implementation idea courtesy of Steve Klabnik
# http://blog.steveklabnik.com/posts/2012-09-09-random-ruby-tricks--class-new

# Create the mailer class with a block and assign to a variable
mailer = Class.new(ActionMailer::Base) do
  def example_message
    mail(to: "test@test.com", from: "test@test.com", subject: "Example Message") do |format|
      format.text { render text: "Example message body" }
    end

danielalvarenga

#!/usr/bin/env bash
# https://developers.supportbee.com/blog/setting-up-cucumber-to-run-with-Chrome-on-Linux/
# https://gist.github.com/curtismcmullan/7be1a8c1c841a9d8db2c
# http://stackoverflow.com/questions/10792403/how-do-i-get-chrome-working-with-selenium-using-php-webdriver
# http://stackoverflow.com/questions/26133486/how-to-specify-binary-path-for-remote-chromedriver-in-codeception
# http://stackoverflow.com/questions/40262682/how-to-run-selenium-3-x-with-chrome-driver-through-terminal
# http://askubuntu.com/questions/760085/how-do-you-install-google-chrome-on-ubuntu-16-04

# Versions
CHROME_DRIVER_VERSION=`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`

danielalvarenga

#!/usr/bin/env ruby
require 'benchmark'

MAX = 100000
results = {}


def if_return(attempt)
    if attempt == 'primeira'
        return 'primeira'