[PROTON-1660] The gemspec dependency on "json ~> 0" breaks anyone dependning on a recent version of json

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: proton-c-0.18.1
• Component/s: ruby-binding
• Assignee: Alan Conway
• Reporter: Greg Blomquist
• Created: 27/Oct/17 14:28
• Updated: 15/Nov/17 21:05
• Resolved: 30/Oct/17 16:04

Description

https://github.com/apache/qpid-proton/blob/0790bb99fabc4a6d7c1c12fb09c0ff76a3594f5a/proton-c/bindings/ruby/qpid_proton.gemspec.in#L31

This line was recently changed in qpid-proton master. It causes any project that depends on a recent version of json to break when pulling together dependencies. The pessimistic style of version constraint means that qpid-proton requires a json version of >= 0.0, but < 1.

For instance, our project has a dependency on json 2.x. And, we see this error when bundling with qpid-proton:

 
Bundler could not find compatible versions for gem "json": 
  In Gemfile: manageiq-providers-azure was resolved to 0.1.0, 
  which depends on azure-armrest (~> 0.9.1) was resolved to 0.9.1, which depends on json (~> 2.0.1) 
  qpid_proton (~> 0.18) was resolved to 0.18.0, which depends on json (~> 0)