如何查找所有对某个gem具有运行时依赖性的gem

Question

如何找到对某个gem有运行依赖性的所有gem。

e.g. How do I find all gems which are dependent on mongoid gem version 2.3.4

Answer 1

您将-R（大写R）开关与gem dependency：

一起使用

gem dependency mongoid -v '2.3.4' -R 

输出：

Gem mongoid-2.3.4
  activemodel (~> 3.1)
  bson_ext (~> 1.3, development)
  mocha (~> 0.9.12, development)
  mongo (~> 1.3)
  rdoc (~> 3.5.0, development)
  rspec (~> 2.6, development)
  tzinfo (~> 0.3.22)
  watchr (~> 0.6, development)

Answer 2

gem dependency mongoid -v 2.3.4

此处的文档http://docs.rubygems.org/read/chapter/10#page78