| # .pryrc | |
| require 'rails/application/route_inspector' | |
| def display_routes | |
| Rails.application.reload_routes! | |
| routes = Rails.application.routes.routes | |
| inspector = Rails::Application::RouteInspector.new | |
| puts inspector.format(routes, ENV['CONTROLLER']).join("\n") | |
| end |
This guide enables you to install (ruby-build) and use (rbenv) multiple versions of ruby, isolate project gems (gemsets and/or bundler), and automatically use appropriate combinations of rubies and gems.
# Ensure system is in ship-shape.
aptitude install git zsh libssl-dev zlib1g-dev libreadline-dev libyaml-dev
My largest Sidekiq application had a memory leak and I was able to find and fix it in just few hours spent on analyzing Ruby's heap. In this post I'll show my profiling setup.
As you might know Ruby 2.1 introduced a few great changes to ObjectSpace, so now it's much easier to find a line of code that is allocating too many objects. Here is great post explaining how it's working.
I was too lazy to set up some seeding and run it locally, so I checked that test suite passes when profiling is enabled and pushed debugging to production. Production environment also suited me better since my jobs data can't be fully random generated.
So, in order to profile your worker, add this to your Sidekiq configuration:
if ENV["PROFILE"]
| #!/bin/sh | |
| RESTORE=$(echo '\033[0m') | |
| BOLD=$(echo '\033[1m') | |
| GREEN=$(echo '\033[1;32m') | |
| echo | |
| echo ${GREEN} | |
| echo "------------------------------" | |
| echo " Installing prerequisites " | |
| echo "------------------------------" | |
| echo |
| def tickets | |
| case | |
| when filters.excel | |
| range_tickets | |
| when filters.avia_offset.present? == false | |
| range_tickets[0..24] | |
| when filters.from_postsale | |
| range_tickets[0...filters.avia_offset] | |
| else | |
| range_tickets[filters.avia_offset..filters.avia_offset + 9] || [] |
| reversible do |dir| | |
| dir.up { change_column :posts, :name, :text } | |
| dir.down { change_column :posts, :name, :string } | |
| end | |
| require 'open-uri' | |
| require 'nokogiri' | |
| def words | |
| uri = 'http://www.languagedaily.com/learn-german/vocabulary/common-german-words' | |
| html = open(uri) | |
| doc = Nokogiri::HTML(html) | |
| germans = doc.css('td.bigLetter') |
| def ticket_issued | |
| case | |
| when avia? | |
| "#{user_name} выписал(а) авиабилет #{ticket_number}" | |
| when railway? | |
| "#{user_name} выписал(а) ж/д билет #{ticket_number}" | |
| when bus? | |
| "#{user_name} выписал(а) автобусный билет #{ticket_number}" | |
| end | |
| end |
| { | |
| "request": { | |
| "airline": { | |
| "requestedCode": "PS", | |
| "fsCode": "PS" | |
| }, | |
| "flight": { | |
| "requested": "777", | |
| "interpreted": "777" | |
| }, |
| class TicketsController < ApplicationController | |
| respond_to? :js | |
| def index | |
| form = TicketFormValidator.new(form_params) | |
| if form.valid? | |
| @ticket = ticket_service(form.pnr_number) | |
| @pnr = form.pnr_number | |
| if @ticket.is_a? String | |
| flash.now[:error] = @ticket |