Skip to content

Instantly share code, notes, and snippets.

View lbrito1's full-sized avatar

Leonardo Brito lbrito1

  • frdm.co
  • Coquitlam, BC
  • 03:19 (UTC -07:00)
View GitHub Profile
@janklimo
janklimo / benchmark.rb
Last active February 22, 2024 08:59
Comparison of memory usage: AXLSX vs. rubyXL
# frozen_string_literal: true
require 'axlsx'
require 'rubyXL'
require 'rubyXL/convenience_methods/worksheet'
require 'memory_profiler'
rows = 1_000
columns = 20
@CMCDragonkai
CMCDragonkai / memory_layout.md
Last active May 9, 2024 14:12
Linux: Understanding the Memory Layout of Linux Executables

Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

  • hexdump
  • objdump
  • readelf
  • xxd
  • gcore
@rpanachi
rpanachi / db.rake
Created April 10, 2016 21:26
Rakefile for Sequel database operations
namespace :db do
require 'sequel'
Sequel.extension(:migration)
MIGRATIONS_PATH = 'db/migrations'
def db_conn_env
ENV["BOOKSHELF_DATABASE_URL"]
end
@ricardo-rossi
ricardo-rossi / ElasticSearch.sh
Last active December 1, 2023 04:55
Installing ElasticSearch on Ubuntu 14.04
#!/bin/bash
### USAGE
###
### ./ElasticSearch.sh 1.7 will install Elasticsearch 1.7
### ./ElasticSearch.sh will fail because no version was specified (exit code 1)
###
### CLI options Contributed by @janpieper
### Check http://www.elasticsearch.org/download/ for latest version of ElasticSearch
@abtrout
abtrout / pass.md
Created July 8, 2014 14:51
Using password-store with git repository synching

Password-store keeps your passwords (or any other sensitive information) saved in GnuPG encrypted files organized in ~/.password-store. For more information about GPG, consult the GNU Privacy Handbook.

Getting started

To get started, install pass and generate a keypair.

$ brew install pass
$ gpg --gen-key
$ gpg --list-keys
@nhocki
nhocki / colors.rb
Created November 30, 2011 20:05
Colorize the output of your ruby rake tasks
module Colors
def colorize(text, color_code)
"\033[#{color_code}m#{text}\033[0m"
end
{
:black => 30,
:red => 31,
:green => 32,
:yellow => 33,
@olvado
olvado / getAverageColourAsRGB.js
Created June 27, 2011 10:19
Get the average colour of an image in javascript using getImageData in CANVAS
function getAverageColourAsRGB (img) {
var canvas = document.createElement('canvas'),
context = canvas.getContext && canvas.getContext('2d'),
rgb = {r:102,g:102,b:102}, // Set a base colour as a fallback for non-compliant browsers
pixelInterval = 5, // Rather than inspect every single pixel in the image inspect every 5th pixel
count = 0,
i = -4,
data, length;
// return the base colour for non-compliant browsers