Ruby Specification.required_ruby_version=用法及代码示例

本文简要介绍ruby语言中 Gem::Specification.required_ruby_version= 的用法。

用法

required_ruby_version=(req)

此 gem 所需的 Ruby 版本。 ruby 版本可以指定给patch-level：

$ ruby -v -e 'p Gem.ruby_version'
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.4.0]
#<Gem::Version "2.0.0.247">

也可以指定预发布。

用法：

# This gem will work with 1.8.6 or greater...
spec.required_ruby_version = '>= 1.8.6'

# Only with final releases of major version 2 where minor version is at least 3
spec.required_ruby_version = '~> 2.3'

# Only prereleases or final releases after 2.6.0.preview2
spec.required_ruby_version = '> 2.6.0.preview2'

# This gem will work with 2.3.0 or greater, including major version 3, but lesser than 4.0.0
spec.required_ruby_version = '>= 2.3', '< 4'

相关用法

注：本文由纯净天空筛选整理自ruby-lang.org大神的英文原创作品 Specification.required_ruby_version=。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。