Auto merge of #4765 - mistydemeo:linkage, r=indirect

WIP: add command to check dynamic library linkage

This new command, linkage, checks for broken dynamic library links in C extensions.

I'd heard there was some interest in adding this functionality, so I thought I'd submit a preliminary PR for discussion. In my experience, broken dylib linkage is a common issue with C extensions, so I think having a good way to diagnose it would be valuable.

This command scans all of the specifications in the bundle for .bundle files in C extensions. If any of the dynamic libraries linked against no longer exist, bundler will report a message to the console and exit non-0.

TODOs:
* Add support for non-Darwin OSs
* Improve tests

A few questions:

* Is there a good way to mock functionality in the tests? Doing it in the standard rspec way isn't working since `bundle :command` runs in a subprocess. I'd like to be able to stub out stuff that actually checks dylibs and the like.
* Is making this a new command the right approach? I assumed this wouldn't be ideal to include in, say, `check` because it would slow it down.

0 files changed, 0 insertions, 0 deletions