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a momentary diversion on the road to the grave

Murray Steele h-lame

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a momentary diversion on the road to the grave
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h-lame / Benchmark semver ordering in Postgresql.rb
Last active March 16, 2024 16:44 — forked from Bodacious/Benchmark semver ordering in Postgresql.rb
Benchmarking different SEMVER ordering strategies in PostgreSQL
require 'bundler/inline'
##
# Get dependencies
gemfile do
source 'https://rubygems.org'
gem 'pg'
gem 'activerecord', require: 'active_record'
gem 'benchmark-ips'
gem 'pry'
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h-lame / benchmark.rb
Created July 20, 2017 13:55
Benchmarking some alternate implementations for checking if a BOM is present in a string and removing it.
require 'benchmark'
# you'll want this to be a largeish file that is representative of the kinds
# of CSS files you'll be using this on in the real world. I used a compiled
# version of application.css from https://github.com/alphagov/government-frontend
css = File.binread "bom.css"
class BomBench
def remove_bom_force_encoding_slice!(input)
input.force_encoding('UTF-8').slice!(0)
@h-lame
h-lame / bom-removal.rake
Created June 30, 2017 12:12
Rake task to hook into assets:precompile in a rails app and remove any BOMs that are inserted by sprockets/sass in CSS files (and their gzipped siblings)
namespace :assets do
task :remove_bom => :environment do
require 'sprockets/utils/gzip'
# object that has enough of the Sprockets::Asset API to be
# used in the Sprockets::Utils::Gzip class without us needing
# to use the real class which needs more data
class DeBOMedCSSAsset < Struct.new(:file_name)
def content_type
'text/css'
@h-lame
h-lame / Slide 13: The simplest shoes app - code.rb
Last active April 2, 2017 19:14
Tying your shoes - code snippets from slides - see: http://h-lame.com/talks/tying-your-shoes/
Shoes.app do
end
@h-lame
h-lame / Slide 11: my first ruby.diff
Last active November 8, 2016 23:25
My First Ruby - code snippets from slides - see: http://h-lame.com/talks/my-first-ruby/
@ -24,8 +24,8 @@ class Config < Hash
}
end
- def initialize(name)
- self[Config::Name] = name
+ def initialize(name=nil)
+ self[Config::Name] = name if name != nil
end
@h-lame
h-lame / gist:8fb54e83aa514bb78f77
Last active August 29, 2015 14:19
*OFFER CLOSED* [LRUG] [GIVEAWAY] Copies of "The Well Grounded Rubyist (2nd Edition)" to give away
From: Murray Steele <murray.steele@lrug.org>
To: London Ruby Users Group <chat@lrug.org>
Subject: [LRUG] [GIVEAWAY] Copies of "The Well Grounded Rubyist (2nd Edition)" to give away
Hi all,
As announced at the start of the meeting on Monday the nice folks at
Infinitium Global have decided to give a little back to the community in
some way. One thing they were keen for is that they were giving back to
the community in a way that would help it grow and encourage folk just
@h-lame
h-lame / after.rb
Created February 20, 2015 10:42
Refactoring?
def find_previous_table_for(element)
find_previous_sibling_of_type(element, 'table')
end
def find_previous_sibling_of_type(element, element_type_to_find)
previous_siblings(element).find do |previous_element|
previous_element.node_name == element_type_to_find
end
end
@h-lame
h-lame / bwt.rb
Last active August 29, 2015 14:05
Implementation of a Burrows-Wheeler Transform, as guided by https://github.com/zetter/burrows-wheeler-transform
class BWT
def encode(string)
chars = "#{string}$".chars
rotations = []
chars.length.times.
inject(chars) do |new_chars, _|
rotations << new_chars
new_chars.rotate
end
@h-lame
h-lame / keybase.md
Created March 17, 2014 16:52

Keybase proof

I hereby claim:

  • I am h-lame on github.
  • I am hlame (https://keybase.io/hlame) on keybase.
  • I have a public key whose fingerprint is 39B4 6B57 2042 0DED F0F4 8D1C 770E BCE3 52EA C8EA

To claim this, I am signing this object:

@h-lame
h-lame / showterm-replacement.html
Created March 11, 2014 12:31
<html>
<head>
<style>
pre.terminal {
display: block;
background-color: black;
color: white;
font-family: monospace;
height: 480px;
width: 640px;