Hermes 开源项目教程

项目的目录结构及介绍

Hermes 项目的目录结构如下：

hermes/
├── README.md
├── app
│   ├── controllers
│   ├── models
│   ├── views
│   └── helpers
├── config
│   ├── environment
│   ├── initializers
│   └── application.rb
├── db
│   ├── migrate
│   └── seeds.rb
├── lib
│   └── tasks
├── public
│   ├── images
│   ├── javascripts
│   └── stylesheets
├── spec
│   ├── controllers
│   ├── models
│   ├── views
│   └── helpers
└── Gemfile

目录介绍

• app: 包含应用程序的主要代码，包括控制器、模型、视图和辅助方法。
• config: 包含应用程序的配置文件，如环境配置和初始化文件。
• db: 包含数据库相关的文件，如迁移文件和种子数据。
• lib: 包含自定义库和任务。
• public: 包含公共资源，如图片、JavaScript 文件和样式表。
• spec: 包含测试代码，如控制器、模型、视图和辅助方法的测试。
• Gemfile: 定义项目所需的 RubyGems。

项目的启动文件介绍

Hermes 项目的启动文件是 config/application.rb。这个文件负责加载应用程序的基本配置和依赖项。

require_relative "boot"

require "rails"
# Pick the frameworks you want:
require "active_model/railtie"
require "active_job/railtie"
require "active_record/railtie"
require "active_storage/engine"
require "action_controller/railtie"
require "action_mailer/railtie"
require "action_mailbox/engine"
require "action_text/engine"
require "action_view/railtie"
require "action_cable/engine"
# require "rails/test_unit/railtie"

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module Hermes
  class Application < Rails::Application
    # Initialize configuration defaults for originally generated Rails version.
    config.load_defaults 6.1

    # Configuration for the application, engines, and railties goes here.
    #
    # These settings can be overridden in specific environments using the files
    # in config/environments, which are processed later.
    #
    # config.time_zone = "Central Time (US & Canada)"
    # config.eager_load_paths << Rails.root.join("extras")
  end
end

项目的配置文件介绍

Hermes 项目的配置文件主要位于 config 目录下，包括以下几个重要的配置文件：

application.rb

如上所述，config/application.rb 是主要的配置文件，负责加载应用程序的基本配置和依赖项。

environment 文件夹

config/environment 文件夹包含不同环境的配置文件，如 development.rb, test.rb, 和 production.rb。

# config/environments/development.rb
Rails.application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

  # In the development environment your application's code is reloaded on
  # every request. This slows down response time but is perfect for development
  # since you don't have to restart the web server when you make code changes.
  config.cache_classes = false

  # Do not eager load code on boot.
  config.eager_load = false

  # Show full error reports.
  config.consider_all_requests_local = true

  # Enable/disable caching. By default caching is disabled.
  # Run rails dev:cache to toggle caching.
  if Rails.root.join('tmp', 'caching-dev.txt').exist?
    config.action_controller.perform_caching = true
    config.action_controller.enable_fragment_cache_logging = true

    config.cache_store = :memory_store
    config.public_file_server.headers = {
      'Cache-Control' => "public, max-age=#{2.days.to