创建并发布自己的gem

一、bundler 一个gem架构

bundler gem dmy_test_gem

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二、写lib 和 gemspec 内容

lib 里面是gem 的核心功能

# lib/dmy_test_gem.rb

require "dmy_test_gem/version"
require 'time'

# 写一个将当前日期转换为 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{学习的gem测试使用}
  spec.description   = %q{功能：将当前时间转化为星期}
  # 首页地址
  spec.homepage      = "https://github.com/ruby/dmy_test_gem" 
  spec.license       = "MIT"
  
  #注释掉的目的时，允许推到所有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`命令会列出当前文件 所有目录
  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