sudo gem gollum 一直报错:
$gem install gollum
ERROR: Could not find a valid gem 'gollum-rjgit_adapter' (~> 0.3) in any repository
ERROR: Possible alternatives: gollum-grit_adapter, gollum-rugged_adapter, dm-redis-adapter, blade-qunit_adapter, postgis_adapter
后来这样解决的
rvm install jruby
rvm use jruby
sudo gem install gollum