floehopper

def valid?(method, ...)
  signature = method.inspect
  pattern = %r{(?:\.|#)#{method.name}\(([^\)]*)\)}
  params = signature.match(pattern)[1]
  params_with_nil_default_values = params.gsub('...', 'nil')
  klass = Class.new
  klass.class_eval "def self.#{method.name}(#{params_with_nil_default_values})\nend\n"
  klass.public_send(method.name, ...)
  true
rescue ArgumentError => e

floehopper

def row_counts
  Hash[*ApplicationRecord.connection.execute(%{
    ANALYZE;
    SELECT
      pgClass.relname   AS tableName,
      pgClass.reltuples AS rowCount
    FROM
      pg_class pgClass
    INNER JOIN
      pg_namespace pgNamespace ON (pgNamespace.oid = pgClass.relnamespace)

floehopper

#!/usr/bin/env ruby

require 'pathname'
require 'fileutils'

pwd = Pathname.pwd

begin
  source = Pathname.new(ARGV[0].nil? ? pwd : ARGV[0]).realpath
  destination = Pathname.new(ARGV[1].nil? ? pwd: ARGV[1]).realpath

floehopper

10 REM 000000000000
20 POKE 16514, 1
30 POKE 16515, 141
40 POKE 16516, 64
50 POKE 16517, 17
60 POKE 16518, 2
70 POKE 16519, 0
80 POKE 16520, 205
90 POKE 16521, 107
100 POKE 16522, 11

floehopper

See https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html

curl http://169.254.169.254/latest/meta-data/iam/security-credentials/$EC2_MACHINE_NAME

{
  "Code" : "Success",
 "LastUpdated" : "2020-11-04T19:38:27Z",

floehopper

• Rake Part 1: Files and Rules
• Rake Part 2: File Lists
• Rake Part 3: Rules
• Rake Part 4: Pathmap
• Rake Part 5: File Operations
• Rake Part 6: Clean and Clobber
• Rake Part 7: MultiTask

floehopper

List & install software updates

softwareupdate --list
sudo softwareupdate --verbose --install --all

Set computer name

COMPUTER_NAME="<computer-name>"
sudo scutil --set ComputerName $COMPUTER_NAME

floehopper

PROVISION_SYSTEM = <<~EOS
  set -e
  apt-get update --yes
  apt-get install --yes gcc
  apt-get install --yes make
EOS

PROVISION_USER = <<~EOS
  set -e
  mkdir -p ~/.rbenv

floehopper

require 'rails_helper'

RSpec.describe MyController do
  describe 'GET #any_action' do
    controller do
      def any_action
        head :ok
      end
    end

floehopper

FILTER_BRANCH_SQUELCH_WARNING=1 git filter-branch --env-filter 'export GIT_COMMITTER_DATE="$(date)"; export GIT_AUTHOR_DATE="$(date)"; sleep 1' main..HEAD