copiousfreetime

require 'benchmark/ips'

# This is a quick bemchmark to compare the performance of ways to convert
# an integer to a base32 string, we want to comare a low-level way to do it
# that uses bit shifting and a high-level way that uses the Integer#digits
#
# Turns out using the digits(32) method is faster than using bit shifting...
# unless you turn on --yjit in which case the bit shifting loop is better
#
# Here are the results on my machine:

copiousfreetime

module Searchable
  extend ActiveSupport::Concern

  included do
    include PgSearch::Model
    class_attribute :searchable_attributes, default: []
    class_attribute :searchable_internal_attributes, default: []
    multisearchable against: [
      :searchable_attributes_text,
      :custom_searchable_text

copiousfreetime

#!/usr/bin/env ruby

# Run this program on the commandline as:
#
#   ruby day-1.rb <filename of csv>
#
# The output will be a prettified JSON representation of the result
#

require 'csv'

copiousfreetime

How to deal with missing Heroku CI/CD and Review Apps

The reason for this

• https://status.heroku.com/incidents/2413

In particular the update from 2022-04-26 23:54:00 UTC

For the protection of our customers, we will not be reconnecting to GitHub until we are certain that we can do so safely, **which may take some time

copiousfreetime

#!/usr/bin/env ruby

require 'optimist'
require 'thread'
require 'socket'

opts = Optimist::options do 
  opt :host, "Hostname to connect to", default: "127.0.0.1"
  opt :port, "Port to connect to", default: 4332
  opt :timeout, "Connection timeout", type: :integer

copiousfreetime

This is code associated with the blog post ...

copiousfreetime

 % bundle exec ./send-bench.rb
Warming up --------------------------------------
              native   973.581k i/100ms
              symbol   476.433k i/100ms
              string   355.763k i/100ms
              frozen   417.573k i/100ms
     constant-frozen   356.666k i/100ms
       instance_eval   738.433k i/100ms
    singleton_method   468.459k i/100ms
            subclass   794.878k i/100ms

copiousfreetime

#!/usr/bin/env ruby

line_number    = 0
unique_counts  = Hash.new(0)
filename       = ARGV.shift
abort "filename needed" unless filename

File.open(filename) do |f|

  header          = f.readline.strip

copiousfreetime

class CreatePgSearchDocuments < ActiveRecord::Migration[6.0]
  def self.up
    create_table :pg_search_documents do |t|
      t.text   :content
      t.string :searchable_type
      t.uuid   :searchable_id
      t.tsvector :content_tsvector
      t.timestamps null: false
    end

copiousfreetime

require 'logger'

class LogFormatter
  MSG_FORMAT       = "%s -- %5s : %s\n".freeze
  DATE_TIME_FORMAT = "%Y-%m-%dT%H:%M:%S.%3N".freeze

  attr_accessor :datetime_format

  def initialize
    @datetime_format = nil