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# Redmine - project management software

# Copyright (C) 2006-2012  Jean-Philippe Lang

#

# 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/bazaar_adapter'

class Repository::Bazaar < Repository

  attr_protected :root_url

  validates_presence_of :url, :log_encoding

  def self.human_attribute_name(attribute_key_name, *args)

    attr_name = attribute_key_name.to_s

    if attr_name == "url"

      attr_name = "path_to_repository"

    end

    super(attr_name, *args)

  end

  def self.scm_adapter_class

    Redmine::Scm::Adapters::BazaarAdapter

  end

  def self.scm_name

    'Bazaar'

  end

  def entry(path=nil, identifier=nil)

    scm.bzr_path_encodig = log_encoding

    scm.entry(path, identifier)

  end

  def cat(path, identifier=nil)

    scm.bzr_path_encodig = log_encoding

    scm.cat(path, identifier)

  end

  def annotate(path, identifier=nil)

    scm.bzr_path_encodig = log_encoding

    scm.annotate(path, identifier)

  end

  def diff(path, rev, rev_to)

    scm.bzr_path_encodig = log_encoding

    scm.diff(path, rev, rev_to)

  end

  def entries(path=nil, identifier=nil)

    scm.bzr_path_encodig = log_encoding

    entries = scm.entries(path, identifier)

    if entries

      entries.each do |e|

        next if e.lastrev.revision.blank?

        # Set the filesize unless browsing a specific revision

        if identifier.nil? && e.is_file?

          full_path = File.join(root_url, e.path)

          e.size = File.stat(full_path).size if File.file?(full_path)

        end

        c = Change.find(

               :first,

               :include    => :changeset,

               :conditions => [

                   "#{Change.table_name}.revision = ? and #{Changeset.table_name}.repository_id = ?",

                   e.lastrev.revision,

                   id

                   ],

               :order => "#{Changeset.table_name}.revision DESC")

        if c

          e.lastrev.identifier = c.changeset.revision

          e.lastrev.name       = c.changeset.revision

          e.lastrev.author     = c.changeset.committer

        end

      end

    end

    load_entries_changesets(entries)

    entries

  end

  def fetch_changesets

    scm.bzr_path_encodig = log_encoding

    scm_info = scm.info

    if scm_info

      # latest revision found in database

      db_revision = latest_changeset ? latest_changeset.revision.to_i : 0

      # latest revision in the repository

      scm_revision = scm_info.lastrev.identifier.to_i

      if db_revision < scm_revision

        logger.debug "Fetching changesets for repository #{url}" if logger && logger.debug?

        identifier_from = db_revision + 1

        while (identifier_from <= scm_revision)

          # loads changesets by batches of 200

          identifier_to = [identifier_from + 199, scm_revision].min

          revisions = scm.revisions('', identifier_to, identifier_from)

          transaction do

            revisions.reverse_each do |revision|

              changeset = Changeset.create(:repository   => self,

                                           :revision     => revision.identifier,

                                           :committer    => revision.author,

                                           :committed_on => revision.time,

                                           :scmid        => revision.scmid,

                                           :comments     => revision.message)

              revision.paths.each do |change|

                Change.create(:changeset => changeset,

                              :action    => change[:action],

                              :path      => change[:path],

                              :revision  => change[:revision])

              end

            end

          end unless revisions.nil?

          identifier_from = identifier_to + 1

        end

      end

    end

  end

end