krisleech

Sign Commits

You can use your existing GPG key, or generate a new one.

Make sure you have a backup of the private key.

Publish the public key to the internet so it can be downloaded. This could be your own website, a gist, keybase.io or a GPG server.

Link to the URL of the public key in the README.

krisleech

tap

'a'.tap { |it| it << 'b' } # => 'ab'

We can't use += as this is assignment and creates a new object which is not returned:

'a'.tap { |it| it += 'b' } # => 'a'

krisleech

• Detach boot disk from problematic instance
• Create new instance (on free tier)
• Attach boot disk to instance
• ssh in to new instance and mount disk

lsblk
sudo mkdir /vol_1

krisleech

Install Java 8

To install without clobbering your existing version use sdkman.

export SDKMAN_DIR="$HOME/bin/sdkman"
curl -s "https://get.sdkman.io" | bash
exec $SHELL

krisleech

add_column :recipients, :rejection_cause_id, :string

class Recipient < ActiveRecord::Base
  def rejection_cause
    RejectionCauses.find(rejection_cause_id)
  end
end

krisleech

I need some methods to return true/false if a attribute had a value. So we have a date attribute #invited_on and I want an #invited? method to return true if the date is present.

There are a few dates for which I need this. My first attempt:

%w(invited_on selected_on confirmed_on ready).each do |attr|
  define_method attr.gsub('_on', '') + '?' do
    send(attr).present?
  end
end

krisleech

class EventBus
  def initialize
    @publisher = Class.new do
      include Wisper::Publisher
      public :broadcast
    end.new
  end

  def subscribe(listener, options = {})
    @publisher.subscribe(listener, options)

krisleech

model

class Study < ActiveRecord::Base
  def site
    @site ||= PrefixedSites.find(site_identifier)
  end

  def site=(new_site)
    @site = new_site

krisleech

Size of directory:

du -h --summarize /archive/production/files/document_store/2019.07.02.11.58.28

92GB

Archive and compress:

krisleech

class Script {
    process_incoming_request({ request }) {
        if(request.content.event.request == undefined) { url = 'n/a' } else { url = request.content.event.request.url }
      
        return {
            content:{
                text: "[" + request.content.message + "](" + request.content.url + ")",
                attachments: [
                    {
                        collapsed: false,