franzwong

Start VM with QEMU on MacOS

1. Install qemu

brew install qemu

2. Download QEMU_EFI.fd

michelson

class AsyncMethodJob < ApplicationJob
  queue_as :default

  def perform(target:, method_name:, args:, queue_name: :default)
    self.class.queue_as(queue_name)
    # `target` could be either an instance or a class
    target = target.constantize if target.is_a?(String)  # Convert class name to class object if needed
    target.send(method_name, *args)
  end
end

nikokozak

defmodule Lector.Template do
  @moduledoc """
  Defines helper functions for rendering Templates.

  What this allows is a naive re-implementation of how Phoenix handles views/templates. 

  When 'using' `Lector.Template`, files sharing the same module name as the view being used get pre-compiled
  into named render functions. In other words, `Lector.Templates.Home` will pre-compile a `home.html.eex` file
  in the same folder into a function of the same name (`Lector.Templates.Home.home(assigns)`), which renders 
  the template.

dlederle

defmodule Acme.Repo do
  use Ecto.Repo,
    otp_app: :acme,
    adapter: Ecto.Adapters.Postgres

  def with_prefix(prefix) do
    module_atom = Module.concat([Acme, Repo, WithPrefix, Macro.camelize(prefix)])

    # We could not find a better way to see if this module already existed
    if !Kernel.function_exported?(module_atom, :prefix, 0) do

elpescador-nl

Based on Self hosting WordPress securely in 2018 on FreeBSD with nginx, PHP 7.2, ModSecurity, brotli, Let's Encrypt SSL

First install all required packages:

pkg install git-lite libtool automake autoconf curl

Set up the building blocks:

dsazup

<?php

namespace App\Providers;

use Illuminate\Routing\ResponseFactory;
use Illuminate\Support\ServiceProvider;
use Illuminate\Contracts\Support\Responsable;

use Illuminate\Contracts\View\Factory as ViewFactoryContract;
use Illuminate\Contracts\Routing\ResponseFactory as ResponseFactoryContract;

dsabanin

defaults write com.apple.dt.Xcode ShowDVTDebugMenu -bool YES
sudo mkdir -p /Applications/Xcode.app/Contents/Developer/AppleInternal/Library/Xcode
sudo touch /Applications/Xcode.app/Contents/Developer/AppleInternal/Library/Xcode/AppleInternal.plist

# Don't forget to restart Xcode

fabiotatsuo

1. Install rust

   jail-app is name of jail.

   $ jexec jail-app
   $ pkg install curl
   

   Download and install rustup
   $ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

absyah

A memory-saving ActiveRecord setting has been used by just one application ever, according to GitHub
There's a common performance problem in many Rails background jobs.

Background jobs often do operations across large sets of data. Basically, they do silly things like User.all.each(&:send_daily_newsletter).

So, there's a problem with that query. In development and test environments, User.all will probably return a few rows, maybe a dozen at most. Most developers have extremely limited seed data on their local machines.

In production, however, User.all will probably return quite a few rows. Depending on the app you work on, maybe a few hundred thousand.

There's a tiiiiiny issue with a result set that returns 100,000 rows, and it's not just that the SQL query will take a long time to return. It will have irreversible effects on your Ruby app too!

supairish

# spec/support/capybara.rb
require 'capybara/rails'
require 'capybara/rspec'

# port and url to webpack server
WEB_TEST_PORT = '5005'.freeze
WEB_TEST_URL = "http://localhost:#{WEB_TEST_PORT}".freeze

def capybara_wait_for_webpack_server
  10.times.each do |_|