pgeraghty’s gists

pgeraghty / gist:bd3cd6ac42c5cf7d9e06

Created February 2, 2015 01:57

Test HTML embed

pgeraghty / format_compact_duration.rb

Created February 24, 2015 01:42

format compact duration as days, hours, minutes, seconds e.g. 3d23h10s

	# seconds = duration in seconds as integer i.e. time.to_i
	[
	seconds / (606024), # days
	seconds % (606024) / (60*60), # hours
	seconds % (60*60) / 60, # minutes
	seconds % 60 # seconds
	].zip(%w(d h m s)).map { \|u\| u.join unless u.first.zero? }.compact.tap { \|a\| a << '<1s' if a.none? }.join
	# Uses Object#tap rather than Rails Object enhancements like Object#presence

pgeraghty / gfw.js

Last active August 29, 2015 14:16

W2V example script - Global Forest Watch

	// W2V script intended for http://www.globalforestwatch.org/map/3/15.00/27.00/ALL/grayscale/loss,forestgain?begin=2001-01-01&end=2013-01-01&threshold=30

	w2v.info("Injecting polyfill");

	// Inject W2V polyfill so that this script will run in normal browsers without errors
	(function(d, s, id){
	var js, fjs = d.getElementsByTagName(s)[0];
	if (d.getElementById(id)){ return; }
	js = d.createElement(s); js.id = id;
	js.onload = function(){

pgeraghty / application.rb

Created March 15, 2015 10:13

Memory profiling for requires - Ruby

	if ENV['MEMORY_PROFILING']
	require 'benchmark'

	def require(file)
	puts `pmap #{Process.pid} \| grep 'total'`
	puts Benchmark.measure('') { super }.format("%t require #{file}")
	end
	end

pgeraghty / static_input.rb

Created September 4, 2015 19:48

Simple Form static input as used by Bootstrap 3+ to have correct alignment in forms

	module SimpleForm
	module Inputs
	class StaticInput < SimpleForm::Inputs::StringInput
	def input
	template.content_tag(:p, object.send(attribute_name), class: 'form-control-static')
	end
	end
	end
	end

pgeraghty / float_alternatives.rb

Last active July 21, 2016 19:40

Benchmark Rational vs. BigDecimal

	require 'benchmark/ips'
	require 'bigdecimal'

	Benchmark.ips do \|x\|
	x.report('Rational from String') { '214.04'.to_r - '74.79'.to_r + '74.79'.to_r > '214.04'.to_r }

	x.report('Rational from Float') { 214.04.to_r - 74.79.to_r + 74.79.to_r > 214.04.to_r }


	x.report('BigDecimal from String') { BigDecimal.new('214.04') - BigDecimal.new('74.79') + BigDecimal.new('74.79') > BigDecimal.new('214.04') }

pgeraghty / redis-monitor.log

Created July 26, 2019 23:29

Redis standalone MONITOR log

	# RUBY

	1564181439.071863 [0 99.99.99.99:43608] "multi"
	1564181439.131934 [0 99.99.99.99:43608] "sadd" "queues" "from_sk_ruby"
	1564181439.131955 [0 99.99.99.99:43608] "lpush" "queue:from_sk_ruby" "{\"queue\":\"from_sk_ruby\",\"class\":\"Sample::MyWorker\",\"args\":[{\"test\":\"payload\",\"activity_id\":15838549}],\"retry\":true,\"jid\":\"ab8ed2a13e41756c5a4dde89\",\"created_at\":1564181430.3014073,\"enqueued_at\":1564181439.043673}"
	1564181439.132031 [0 99.99.99.99:43608] "exec"

	1564181439.180776 [0 99.99.99.99:43608] "multi"
	1564181439.223040 [0 99.99.99.99:43608] "sadd" "queues" "from_sk_ruby"
	1564181439.223064 [0 99.99.99.99:43608] "lpush" "queue:from_sk_ruby" "{\"queue\":\"from_sk_ruby\",\"class\":\"Sample::MyWorker\",\"args\":[{\"test\":\"payload\",\"activity_id\":15838549}],\"retry\":true,\"jid\":\"ab8ed2a13e41756c5a4dde89\",\"created_at\":1564181430.3014073,\"enqueued_at\":1564181439.1471574}"

pgeraghty / sidekiq-client-benchmark-output.txt

Created July 27, 2019 00:33

Sidekiq::Client.push benchmark output

pgeraghty / alpine_crystal_static_compilation.cr

Last active August 30, 2019 21:36

Allow compilation of statically-linked binary for Crystal Lang on Alpine

	# Hack to avoid segfault during compilation of statically-linked binary on Alpine
	{% if flag?(:static) %}
	require "llvm/lib_llvm"
	require "llvm/enums"
	{% end %}

pgeraghty / Dockerfile

Created March 16, 2020 17:53

Basic Dockerfile for multi-stage build of statically-linked binary via Crystal shards

	FROM crystallang/crystal:0.33.0-alpine-build as builder
	WORKDIR /app
	COPY . /app
	RUN shards build --static --release --no-debug

	FROM scratch
	WORKDIR /app
	COPY --from=builder /app/bin /bin
	ENTRYPOINT ["/bin/<YOUR_BINARY_NAME"]

Paul Geraghty pgeraghty