如何从 gemspec 文件中获取版本?

问题描述

有没有一种干净的方法可以从 .gemspec 文件中提取版本字符串?(gem 还没有安装)

Is there a clean way to extract the version string from a .gemspec file? (The gem is not yet installed)

例如somethingcool.gemspec 是

e.g. somethingcool.gemspec is

Gem::Specification.new do |s|
  s.name = "somethingcool"
  s.version = "1.2.3"
  ... etc ...
end

我想提取1.2.3".

I want to extract "1.2.3".

我可以解决它，但一定有更好的方法.

I could grep it out but there must be a better way.

推荐答案

require "rubygems"

spec = Gem::Specification::load("example.gemspec")
puts spec.version

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