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# redMine - project management software
# Copyright (C) 2006-2007  Jean-Philippe Lang
# Copyright (C) 2007  Patrick Aljord patcito@ŋmail.com
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require 'redmine/scm/adapters/git_adapter'

class Repository::Git < Repository
  attr_protected :root_url
  validates_presence_of :url

  def scm_adapter
    Redmine::Scm::Adapters::GitAdapter
  end
  
  def self.scm_name
    'Git'
  end

  def changesets_for_path(path)
    Change.find(:all, :include => :changeset, 
                :conditions => ["repository_id = ? AND path = ?", id, path],
                :order => "committed_on DESC, #{Changeset.table_name}.revision DESC").collect(&:changeset)
  end

  def fetch_changesets
    scm_info = scm.info
    if scm_info
      # latest revision found in database
      db_revision = latest_changeset ? latest_changeset.revision : nil
      # latest revision in the repository
      scm_revision = scm_info.lastrev.scmid

      unless changesets.find_by_scmid(scm_revision)

        revisions = scm.revisions('', db_revision, nil)
        transaction do
          revisions.reverse_each do |revision|
            changeset = Changeset.create(:repository => self,
                                         :revision => revision.identifier,
                                         :scmid => revision.scmid,
                                         :committer => revision.author, 
                                         :committed_on => revision.time,
                                         :comments => revision.message)
            
            revision.paths.each do |change|
              Change.create(:changeset => changeset,
                            :action => change[:action],
                            :path => change[:path],
                            :from_path => change[:from_path],
                            :from_revision => change[:from_revision])
            end
          end
        end
      end
    end
  end
end