init.rb

require 'redmine'
require 'user'

require_dependency 'gitosis'
require_dependency 'gitosis/patches/repositories_controller_patch'
require_dependency 'gitosis/patches/repositories_helper_patch'

Redmine::Plugin.register :redmine_gitosis do
  name 'Redmine Gitosis plugin'
  author 'Jan Schulz-Hofen'
  description 'Enables Redmine to update a gitosis server.'
  version '0.0.4'
  settings :default => {
    'gitosisUrl' => 'git@localhost:gitosis-admin.git', 
    'gitosisIdentityFile' => '/opt/redmine/.ssh/id_rsa',
    'developerBaseUrl' => 'git@localhost:',
    'basePath' => '/opt/git/repositories/' }, :partial => 'redmine_gitosis'
end

# initialize hook
class GitosisPublicKeyHook < Redmine::Hook::ViewListener
  render_on :view_my_account_contextual, :inline => "| <%= link_to(l(:label_public_keys), public_keys_path) %>" 
end

class GitosisProjectShowHook < Redmine::Hook::ViewListener
  render_on :view_projects_show_left, :partial => 'redmine_gitosis'
end

# initialize association from user -> public keys
User.send(:has_many, :gitosis_public_keys, :dependent => :destroy)

# initialize observer
ActiveRecord::Base.observers = ActiveRecord::Base.observers << GitosisObserver