Update to ruby-mime-types breaks git-up

[jebaum]

Arch just updated the ruby-mime-types package from 1.25 to 2.0

https://www.archlinux.org/packages/community/any/ruby-mime-types/

After upgrading, 'git up' fails with this message:

/usr/lib/ruby/2.0.0/rubygems/dependency.rb:296:into_specs': Could not find 'mime-types' (~> 1.15) - did find: mime-types-2.0
from /usr/lib/ruby/2.0.0/rubygems/specification.rb:1196:in block in activate_dependencies' from /usr/lib/ruby/2.0.0/rubygems/specification.rb:1185:ineach'
from /usr/lib/ruby/2.0.0/rubygems/specification.rb:1185:in activate_dependencies' from /usr/lib/ruby/2.0.0/rubygems/specification.rb:1167:inactivate'
from /usr/lib/ruby/2.0.0/rubygems/specification.rb:1199:in block in activate_dependencies' from /usr/lib/ruby/2.0.0/rubygems/specification.rb:1185:ineach'
from /usr/lib/ruby/2.0.0/rubygems/specification.rb:1185:in activate_dependencies' from /usr/lib/ruby/2.0.0/rubygems/specification.rb:1167:inactivate'
from /usr/lib/ruby/2.0.0/rubygems.rb:181:in rescue in try_activate' from /usr/lib/ruby/2.0.0/rubygems.rb:178:intry_activate'
from /usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:109:in rescue in require' from /usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:35:inrequire'
from ./bin/git-up:3:in <main>'

Edit: it seems this is actually a problem with grit, which is depending on ~> 1.15 instead of >= 1.15. Changing this manually in the grit gemspec fixed the problem, sorry for false issue.

[aanand]

Actually, a >= dependency is almost always a bad idea - grit is probably doing the right thing. But surely this can be fixed by manually installing the older version again, i.e. gem install ruby-mime-types -v 1.25? Both versions should be able to coexist.