Ruby on Rails项目往往用到大量第三方的gems,在项目有新成员加入，或配置新的开发系统时，一个个的安装是件很繁琐的事情。
我用的办法就是写一个自己的gem,让它依赖于项目里用到的其他gems。这样的话，安装这个gem的时候，就会顺带把其他gems安装了。
代码非常简单：
>cat install-gems.gemspec
#
#Usage:
#gem build install-gems.gemspec
#gem install install-gems.0.0.1.gem
#gem uninstall install-gems (optional, remove this useless gem)
#
spec = Gem::Specification.new do |s|
s.name = "install-gems"
s.version = "0.0.1"
s.author = "yawl"
s.email = "[email protected]"
s.homepage = "http://xruby.iteye.com"
s.platform = Gem::Platform::RUBY
s.summary = "This gem has no content in itself, it helps to install all the gems we depend on"
s.add_dependency('actionmailer', '>=2.0.2')
s.add_dependency('actionpack', '>=2.0.2')
s.add_dependency('activerecord', '>=2.0.2')
s.add_dependency('activeresource', '>=2.0.2')
s.add_dependency('activesupport', '>=2.0.2')
s.add_dependency('acts_as_ferret', '>=0.4.3')
s.add_dependency('capistrano', '>=2.1.0')
s.add_dependency('mysql', '>=2.7')
s.add_dependency('rails', '>=2.0.2')
s.add_dependency('rake', '>=0.8.1')
# add more here
end