常用的几个 Ruby 版本管理工具有：rvm，rbenv，ry，rbfu。rvm 应该是最早出现、使用最多的，因为过于强大以至于违背了某个 Linux 软件开发原则，所以出现了很多轻便的替代者，其中来自 37signals 的 rbenv 就很受欢迎。ry 和 rbfu 看上去更轻便，不过使用不广泛。之前使用过rvm, 这次尝试下rbenv。
我的环境是 Ubuntu14.04
rbenv的源代码托管在github，在终端中，从 github 上将 rbenv 源码 clone 到本地，然后设置 $PATH。
git clone git://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
| value = :initial | |
| catch :redo do | |
| case value | |
| when :initial | |
| puts 'initial' | |
| value = :changed | |
| redo | |
| when :changed | |
| puts 'changed' |
| # config/routes.rb | |
| resources :documents do | |
| scope module: 'documents' do | |
| resources :versions do | |
| post :restore, on: :member | |
| end | |
| resource :lock | |
| end | |
| end |
| # Call scopes directly from your URL params: | |
| # | |
| # @products = Product.filter(params.slice(:status, :location, :starts_with)) | |
| module Filterable | |
| extend ActiveSupport::Concern | |
| module ClassMethods | |
| # Call the class methods with names based on the keys in <tt>filtering_params</tt> | |
| # with their associated values. For example, "{ status: 'delayed' }" would call |
For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.
Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.
You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.
| # This is a skeleton for testing models including examples of validations, callbacks, | |
| # scopes, instance & class methods, associations, and more. | |
| # Pick and choose what you want, as all models don't NEED to be tested at this depth. | |
| # | |
| # I'm always eager to hear new tips & suggestions as I'm still new to testing, | |
| # so if you have any, please share! | |
| # | |
| # @kyletcarlson | |
| # | |
| # This skeleton also assumes you're using the following gems: |
| #! usr/bin/ruby | |
| require 'uri' | |
| require 'net/http' | |
| require 'json' | |
| def getRequest(url) | |
| uri = URI.parse(url) | |
| http = Net::HTTP.new(uri.host, uri.port) | |
| request = Net::HTTP::Get.new(uri.request_uri) | |
| request["Accept"] = "application/json" |
You probably don't want Google crawling your development staging app. Here's how to fix that.
$ mv public/robots.txt config/robots.production.txt
$ cp config/robots.production.txt config/robots.development.txt
Now edit config/routes.rb to add a route for /robots.txt, and add the controller code.
| class Object | |
| def try_all(*methods) | |
| values = [self] | |
| methods.each do |method| | |
| value = values.last.try(method) | |
| return nil if value.nil? | |
| values << value | |
| end | |
| values.last |
| module A | |
| def self.included(target) | |
| v = target.instance_methods.include?(:method_name) | |
| puts "in included: #{v}" | |
| end | |
| def self.append_features(target) | |
| v = target.instance_methods.include?(:method_name) | |
| puts "in append features before: #{v}" | |
| super |