JonathanWThom

#!/bin/sh

# Add or `ln -s` this into `/usr/local/bin/`

echo "Updating everything..."

echo "Updating Homebrew and all Homebrew packages"
brew update && brew upgrade && brew cleanup && brew doctor

echo "Updating all programming languages"

JonathanWThom

# https://thomasleecopeland.com/2017/04/20/shadowing-bug-in-the-wild.html
# https://docs.ruby-lang.org/en/2.4.0/syntax/assignment_rdoc.html#label-Local+Variables+and+Methods
# https://www.codinginthecrease.com/news_article/show/307337

class Okay
  def yep
    "yep"
  end
  
  def nope

JonathanWThom

docker stop $(docker ps -qa); docker rm $(docker ps -qa); docker rmi -f $(docker images -qa); docker volume rm $(docker volume ls -q); docker network rm $(docker network ls -q)

JonathanWThom

#!/bin/zsh
# Backup a folder to a remote address using borg.
# To restore: borg extract $BORG_REPO::computer-and-date

set -eu

# Will need a remote server setup with Borg, and a Borg repo first.
export BORG_REPO="<user>@<host>:<borg-repo>"

# Assuming you've installed Borg with Homebrew

JonathanWThom

# Based on https://en.wikipedia.org/wiki/Diffie%E2%80%93Hellman_key_exchange

require "prime"
require "openssl"

class Client
  def initialize
    @private_key = rand(1..100000)
    @clients = {}
  end

JonathanWThom

(1..100).each do |i|
  [3, 5].each do |num|
    define_method("klass_#{num}") do
      Class.new do
        if i % num == 0
          define_method("#{i}") do
            call
          end
        end

JonathanWThom

$styles: margin padding;
$directions: left right top bottom;

@each $style in $styles {
  @for $i from 0 through 50 {
    .#{$style}-#{$i} { #{$style}: #{$i}px; }
    @each $direction in $directions {
      .#{$style}-#{$direction}-#{$i} { #{$style}-#{$direction}: #{$i}px }
    }
  }

JonathanWThom

# You'll probably want to Ctrl+C out of this one pretty quickly.

File.open($0, "r+") do |f|
  content = f.read
  puts content
  f << content
  f.close
  sleep 5

  system "ruby", $0

JonathanWThom

## rails g migration add_timestamps
## Insert the following, with whatever version of ActiveRecord you're using.

class AddTimestamps < ActiveRecord::Migration[5.0]
  def change
    ActiveRecord::Base.connection.tables.each do |table_name|
      columns = ActiveRecord::Base.connection.columns(table_name).map { |c| c.name }
      ["created_at", "updated_at"].each do |timestamp|
        unless columns.include?(timestamp)
          add_column table_name, timestamp, :datetime