Sakura VPSのubuntu12.04上にgollumを入れる ref: http://qiita.com/mountcedar/items/a59ef90a0bf3e98672bd

auth.rb

module Precious
  class App < Sinatra::Base
    use Rack::Auth::Basic, "This is private wiki" do |username, password|
      [username, password] == ['yukke', 'passwd']
    end
  end
end

file0.txt

$ sudo apt-get -yV install ruby1.9.3 rubygems
$ sudo update-alternatives --install /usr/bin/ruby ruby /usr/bin/ruby1.9.3 500
$ sudo update-alternatives --install /usr/bin/gem gem /usr/bin/gem1.9.3 500
$ sudo gem install rubygems-update
$ sudo gem update
$ sudo apt-get install libxslt-dev libxml2-dev
$ sudo apt-get install -yV lib32z1-dev
$ sudo apt-get install libicu-dev
$ sudo gem install nokogiri
$ sudo gem install gollum

file1.txt

$ mkdir notes
$ cd notes
$ git init
$ gollum —mathjax

file2.txt

$ cd notes
$ gollum —mathjax

file4.txt

$ cd notes
$ gollum —mathjax —config auth.rb

file5.txt

$ cd notes
$ gollum —mathjax —config auth.rb —allow-uploads