danielalvarenga

# Add in ~/.bashrc or ~/.bash_profile
function parse_git_branch () {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
 
RED="\[\033[01;31m\]"
YELLOW="\[\033[01;33m\]"
GREEN="\[\033[01;32m\]"
BLUE="\[\033[01;34m\]"
NO_COLOR="\[\033[00m\]"

danielalvarenga

#!/bin/bash

# Author: Daniel Alvarenga Lima
# Ubuntu version supported: 18.04 LTS 64Bit

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

#INSTRUCTIONS

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

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

# Puma can serve each request in a thread from an internal thread pool.
# The `threads` method setting takes two numbers: a minimum and maximum.
# Any libraries that use thread pools should be configured to match
# the maximum value specified for Puma. Default is set to 5 threads for minimum
# and maximum; this matches the default thread size of Active Record.
# More: https://devcenter.heroku.com/articles/deploying-rails-applications-with-the-puma-web-server#threads
#
threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
threads threads_count, threads_count

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

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)