一、bundler 一個gem架構(gòu)

bundler gem dmy_test_gem

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二、寫lib 和 gemspec 內(nèi)容

lib 里面是gem 的核心功能

# lib/dmy_test_gem.rb

require "dmy_test_gem/version"
require 'time'

# 寫一個將當前日期轉(zhuǎn)換為 星期的方法
module DmyTestGem
  def self.current_weekday
    DateTime.now.strftime("%A")
  end
end

gemspec 主要是gem的配置和描述信息

# dmy_test_gem.gemspec

Gem::Specification.new do |spec|
  spec.name          = "dmy_test_gem"
  spec.version       = DmyTestGem::VERSION
  spec.authors       = ["dongmy54"]
  spec.email         = ["615760433@qq.com"]

  spec.summary       = %q{學習的gem測試使用}
  spec.description   = %q{功能：將當前時間轉(zhuǎn)化為星期}
  # 首頁地址
  spec.homepage      = "https://github.com/ruby/dmy_test_gem" 
  spec.license       = "MIT"
  
  #注釋掉的目的時，允許推到所有host
  # if spec.respond_to?(:metadata)
  #   spec.metadata["allowed_push_host"] = "TODO: Set to 'http://mygemserver.com'"
  # else
  #   raise "RubyGems 2.0 or newer is required to protect against " \
  #     "public gem pushes."
  # end

  # `git ls-files -z`命令會列出當前文件 所有目錄
  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
    f.match(%r{^(test|spec|features)/})
  end
  spec.bindir        = "exe"
  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
  spec.require_paths = ["lib"]

  spec.add_development_dependency "bundler", "~> 1.16"
  spec.add_development_dependency "rake", "~> 10.0"
  spec.add_development_dependency "rspec", "~> 3.0"
end

三、本地測試這個gem 并推到github倉庫

rake build
rake install

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四、發(fā)布到rubygems

這步需要有rubygems的賬號,并且發(fā)布之前一定要先推到github

rake release

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PS: 這里rake release后。顯示到Tag v0.1.0 ... 就不動了。
其實這時是依次輸入：rubygems 的郵箱 然后換行輸入密碼就ok 了

到github搜搜自己的gem，存在說明成功了

成