ruby-on-rails - 我如何找出哪个 gem 具有特定的依赖性？

Question

我注释掉了一个 gem，但“bundle install”仍然无法运行。我如何找出哪个 gem 依赖于 sys-proctable？

$ bundle install
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Could not find sys-proctable-0.9.2 in any of the sources

$ grep proctable Gemfile
  #gem 'sys-proctable', '0.9.2', :path => "vendor/gems"

$ bundle list
Resolving dependencies...
Could not find gem 'rspec-rails (= 2.11.0) ruby' in the gems available on this machine.

$ bundle viz
Resolving dependencies...
Could not find gem 'rspec-rails (= 2.11.0) ruby' in the gems available on this machine.

$ bundle -v
Bundler version 1.3.0

$ ruby -v
ruby 1.9.3p385 (2013-02-06 revision 39114) [i386-cygwin]

gem 文件:http://pastebin.com/9WWMfKtv

我已经尝试过这些故障排除步骤:https://github.com/carlhuda/bundler/blob/1-2-stable/ISSUES.md

Answer 1

在 bash shell 中你可以做:

gem 依赖项 name_of_the_gem --reverse-dependencies

例如:

$ gem dependency activesupport --reverse-dependencies                        
Gem activesupport-2.3.14
Used by
actionpack-2.3.14 (activesupport (= 2.3.14))
activerecord-2.3.14 (activesupport (= 2.3.14))
activeresource-2.3.14 (activesupport (= 2.3.14))