GPG-signed commits throws NoMethodError

[kevinoconnor7]

This is a recreation of issue mojombo#141.

Long story short, when signing commits with GPG grit has trouble parsing around the GPG signature in the commit and throws NoMethodError. On gitlab 5.0 this means that repos that have GPG signed commits cannot be viewed.

User alexdo wrote a patch to resolve the issue by stripping out the GPG signature from the commit.

Here's the relevant section of the traceback:

undefined method `match' for nil:NilClass
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/grit-2.5.0/lib/grit/commit.rb:286:in `actor'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/grit-2.5.0/lib/grit/commit.rb:158:in `list_from_string'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/grit-2.5.0/lib/grit/commit.rb:125:in `find_all'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/grit-2.5.0/lib/grit/repo.rb:381:in `commits'