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dhh /
Last active April 18, 2024 14:12
sudo apt update -y
sudo apt install -y \
git curl \
build-essential pkg-config autoconf bison rustc cargo clang \
libssl-dev libreadline-dev zlib1g-dev libyaml-dev libreadline-dev libncurses5-dev libffi-dev libgdbm-dev libjemalloc2 \
libvips imagemagick libmagickwand-dev \
redis-tools sqlite3 libsqlite3-0 libmysqlclient-dev \
rbenv apache2-utils
dhh / pagination_controller.js
Last active March 18, 2024 00:00
HEY's Stimulus Pagination Controller
ERB template chunk from The Feed's display of emails:
<section class="postings postings--feed-style" id="postings"
data-controller="pagination" data-pagination-root-margin-value="40px">
<%= render partial: "postings/snippet", collection: @page.records, as: :posting, cached: true %>
<%= link_to(spinner_tag, url_for(page: @page.next_param),
class: "pagination-link", data: { pagination_target: "nextPageLink", preload: @page.first? }) unless @page.last? %>
dhh / Gemfile
Created June 24, 2020 22:23
HEY's Gemfile
ruby '2.7.1'
gem 'rails', github: 'rails/rails'
gem 'tzinfo-data', '>= 1.2016.7' # Don't rely on OSX/Linux timezone data
# Action Text
gem 'actiontext', github: 'basecamp/actiontext', ref: 'okra'
gem 'okra', github: 'basecamp/okra'
# Drivers
dhh / tracker_blocking.rb
Last active July 27, 2023 14:19
Current list of spy pixels named'n'shamed in HEY, as of April 23, 2020
module Entry::TrackerBlocking
extend ActiveSupport::Concern
included do
has_many :blocked_trackers
email_service_blockers = {
"ActiveCampaign" => /lt\.php(.*)?l\=open/,
"AWeber" => "",
#!/usr/bin/env node
// Results from MacBook (Retina, 12-inch, Early 2016), 1.3 GHz Intel Core m7, macOS 10.12.3, Node 7.6.0
// let a = { z: 1 }
// human-friendly x 85,821,153 ops/sec ±1.81% (87 runs sampled)
// machine-friendly x 92,613,579 ops/sec ±1.89% (85 runs sampled)
// Fastest is machine-friendly
// let a = undefined
#!/usr/bin/env ruby
# Requires that you have ./bin/dcpTool from
require 'rubygems'
require 'bundler/setup'
require 'nokogiri'
input_camera_model = ARGV[0] || "LEICA Q (Typ 116)"
output_camera_model = ARGV[1] || "LEICA M10"
This is Neela, recruiter from Kellton Tech Solutions (Formerly Prosoft Technology Group, Inc)
We are an Information Technology and Business Consulting firm specializing in Project-based Solutions
and Professional Staffing Services. I just tried reaching you today as your profile has been one of
the best matches for an immediate job opportunity I have with my client. So, please have a look at
the job description and let me know your interest ASAP. I would really appreciate if you could send
me your most updated resume also.
Please Note:
dhh / comments_channel.rb
Last active December 16, 2020 14:24
On-boarding a specialized broadcast method in the channel itself
# Channel
class CommentsChannel < ApplicationCable::Channel
def self.broadcast_comment(comment)
broadcast_to comment.message, comment: CommentsController.render(
partial: 'comments/comment', locals: { comment: comment }
def follow(data)
module YourApp
class Application < Rails::Application
# Convenience for loading config/foo.yml for the current Rails env.
# Example:
# config/cleversafe.yml:
# production:
# url:
dhh / test_induced_design_damage.rb
Last active June 22, 2023 06:18
This is an extraction from Jim Weirich's "Decoupling from Rails" talk, which explained how to apply the hexagonal design pattern to make every layer of your application easily unit testable (without touching the database etc). It only seeks to extract a single method, the EmployeesController#create method, to illustrate the design damage that's …
# Original Rails controller and action
class EmployeesController < ApplicationController
def create
@employee =
redirect_to @employee, notice: "Employee #{} created"
render :new