从零写一个GEM.PDFVIP

从零写⼀个GEM 李亚⻜ ruby-china ID: @lyfi2003 github ID: @windy SZRuby 2014.6 活动 • 什么是 GEM ( 作⽤, 名字来由 ) • 脚⼿架 • 模块与依赖 • 带命令⾏的 GEM • 测试 • 发布你的 GEM 什么是 GEM Ruby: 红宝⽯ GEM: 宝⽯碎⽚, 点缀 解释: GEM 就像它的含义那样, 作为 Ruby 的独⽴库存 在. GEM 的⽤法 安装( 以 watir-webdriver 为例 ): gem install watir-webdriver 使⽤: require ‘watir-webdriver’ browser = Watir::Browser.new :safari browser.goto(“”) browser.text_field(:id, “kw1”).set(“123”) GEM 的⽤法 安装( 以 Rails 为例, ⽀持命令⾏⼯具 ): gem install rails 使⽤: rails new wblog bundle install balabala… GEM 的⺫录结构 |-- CHANGES.md |-- Gemfile |-- LICENSE |-- README.md |-- Rakefile |-- lib | |-- watir-webdriver | |-- watir-webdriver.rb | `-- yard |-- spec | |-- browser_spec.rb | |-- click_spec.rb | |-- container_spec.rb | `-- wait_spec.rb |-- support | |-- travis.sh | `-- version_differ.rb `-- watir-webdriver.gemspec 开始写 GEM 我们要⼿动创建⺫录吗? NO, 不需要: $ bundle gem a # output like this directory: `-- a |-- Gemfile |-- LICENSE.txt |-- README.md |-- Rakefile |-- a.gemspec `-- lib |-- a | `-- version.rb `-- a.rb 测试⼀下 $ gem build a.gemspec $ gem install a-0.0.1.gem -l $ irb require ‘a’ puts A::VERSION 添加依赖 Gem::Specification.new do |spec| = a spec.version = A::VERSION spec.authors = [yafeilee] spec.email = [lyfi2003@] spec.summary = %q{This is my first gem.} spec.description = %q{This is my first gem.} spec.homepage = spec.license = MIT spec.files = `git ls-files -z`.split(\x