IFilonov

== profile by cpu
require 'stackprof'

profile = StackProf.run(mode: :wall, raw: true) do
  process(period: period, search_query: ['toDate(created_at) BETWEEN ? AND ?', period&.begin, period&.end])
end

File.write('stackprof.json', JSON.generate(profile))
 
# Go to https://www.speedscope.app/

IFilonov

db:migrate runs (single) migrations that have not run yet.

db:create creates the database

db:drop deletes the database

db:schema:load creates tables and columns within the existing database following schema.rb. This will delete existing data.

db:setup does db:create, db:schema:load, db:seed

IFilonov

Ubuntu 
  sudo apt-get install language-pack-ru --установка русской локали
  sudo apt-get install firefox-locale-ru -- русский для firefox
  sudo apt install numix-gtk-theme numix-icon-theme --установка темы Numix
  sudo apt install unity-tweak-tool --для управления темой и расширенными настройками
  
  -- Установка расширения VirtualBox GuestAddtion
  sudo apt-get install virtualbox-guest-additions-iso
  
    --environment variables --

IFilonov

Rspec example:

describe Class, type: :service do
   let(a) { build(:a) }
   let!(b) { build_stubbed(:b) }
   let!(c) { create(:c) }
   
   before do
     VCR.turn_off!
     WebMock.enable!

IFilonov

anc_desc= {}
ObjectSpace.each_object(Class).select{ |x| x < Object }.each{ |c| anc_desc[c.name] = c.superclass.name if c.name && c.superclass.name }
File.open'result.dot', 'w' do |file|
  file.puts %Q(digraph "Ruby#{RUBY_VERSION}" {\n)
  file.puts %Q(node [shape=box];\n edge [arrowtail="empty", dir=back];\n)
  anc_desc.each.sort_by { |desc, anc| anc + desc }.each{ |desc, anc| file.puts %Q("#{anc}" -> "#{desc}";\n)}
  #anc_desc.each{|desc, anc|file.puts%Q("#{anc}" -> "#{desc}";\n)}
  file.puts'}';
end
system 'dot -Tsvg result.dot -o ruby.svg'

IFilonov

# frozen_string_literal: true

namespace :routes do
  desc 'Поиск неприкрытых авторизацией роутов'
  task list_all_routes: :environment do
    controllers_actions = []
    controllers_actions << { controller: 'Контроллер',
                             action: 'Метод',
                             verb: 'Глагол',
                             path: 'Путь',