Chris@0: # redMine - project management software
Chris@0: # Copyright (C) 2006-2007  Jean-Philippe Lang
Chris@0: #
Chris@0: # This program is free software; you can redistribute it and/or
Chris@0: # modify it under the terms of the GNU General Public License
Chris@0: # as published by the Free Software Foundation; either version 2
Chris@0: # of the License, or (at your option) any later version.
Chris@0: # 
Chris@0: # This program is distributed in the hope that it will be useful,
Chris@0: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0: # GNU General Public License for more details.
Chris@0: # 
Chris@0: # You should have received a copy of the GNU General Public License
Chris@0: # along with this program; if not, write to the Free Software
Chris@0: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@0: 
Chris@0: class Repository < ActiveRecord::Base
Chris@0:   belongs_to :project
Chris@0:   has_many :changesets, :order => "#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC"
Chris@0:   has_many :changes, :through => :changesets
Chris@0:   
Chris@0:   # Raw SQL to delete changesets and changes in the database
Chris@0:   # has_many :changesets, :dependent => :destroy is too slow for big repositories
Chris@0:   before_destroy :clear_changesets
Chris@0:   
Chris@0:   # Checks if the SCM is enabled when creating a repository
Chris@0:   validate_on_create { |r| r.errors.add(:type, :invalid) unless Setting.enabled_scm.include?(r.class.name.demodulize) }
Chris@0:   
Chris@0:   # Removes leading and trailing whitespace
Chris@0:   def url=(arg)
Chris@0:     write_attribute(:url, arg ? arg.to_s.strip : nil)
Chris@0:   end
Chris@0:   
Chris@0:   # Removes leading and trailing whitespace
Chris@0:   def root_url=(arg)
Chris@0:     write_attribute(:root_url, arg ? arg.to_s.strip : nil)
Chris@0:   end
Chris@0: 
Chris@0:   def scm
Chris@0:     @scm ||= self.scm_adapter.new url, root_url, login, password
Chris@0:     update_attribute(:root_url, @scm.root_url) if root_url.blank?
Chris@0:     @scm
Chris@0:   end
Chris@0:   
Chris@0:   def scm_name
Chris@0:     self.class.scm_name
Chris@0:   end
Chris@0:   
Chris@0:   def supports_cat?
Chris@0:     scm.supports_cat?
Chris@0:   end
Chris@0: 
Chris@0:   def supports_annotate?
Chris@0:     scm.supports_annotate?
Chris@0:   end
Chris@0:   
Chris@0:   def entry(path=nil, identifier=nil)
Chris@0:     scm.entry(path, identifier)
Chris@0:   end
Chris@0:   
Chris@0:   def entries(path=nil, identifier=nil)
Chris@0:     scm.entries(path, identifier)
Chris@0:   end
Chris@0: 
Chris@0:   def branches
Chris@0:     scm.branches
Chris@0:   end
Chris@0: 
Chris@0:   def tags
Chris@0:     scm.tags
Chris@0:   end
Chris@0: 
Chris@0:   def default_branch
Chris@0:     scm.default_branch
Chris@0:   end
Chris@0:   
Chris@0:   def properties(path, identifier=nil)
Chris@0:     scm.properties(path, identifier)
Chris@0:   end
Chris@0:   
Chris@0:   def cat(path, identifier=nil)
Chris@0:     scm.cat(path, identifier)
Chris@0:   end
Chris@0:   
Chris@0:   def diff(path, rev, rev_to)
Chris@0:     scm.diff(path, rev, rev_to)
Chris@0:   end
Chris@0:   
Chris@0:   # Returns a path relative to the url of the repository
Chris@0:   def relative_path(path)
Chris@0:     path
Chris@0:   end
Chris@0:   
Chris@0:   # Finds and returns a revision with a number or the beginning of a hash
Chris@0:   def find_changeset_by_name(name)
Chris@117:     return nil if name.nil? || name.empty?
Chris@0:     changesets.find(:first, :conditions => (name.match(/^\d*$/) ? ["revision = ?", name.to_s] : ["revision LIKE ?", name + '%']))
Chris@0:   end
Chris@0:   
Chris@0:   def latest_changeset
Chris@0:     @latest_changeset ||= changesets.find(:first)
Chris@0:   end
Chris@0: 
Chris@0:   # Returns the latest changesets for +path+
Chris@0:   # Default behaviour is to search in cached changesets
Chris@0:   def latest_changesets(path, rev, limit=10)
Chris@0:     if path.blank?
Chris@0:       changesets.find(:all, :include => :user,
Chris@0:                             :order => "#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC",
Chris@0:                             :limit => limit)
Chris@0:     else
Chris@0:       changes.find(:all, :include => {:changeset => :user}, 
Chris@0:                          :conditions => ["path = ?", path.with_leading_slash],
Chris@0:                          :order => "#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC",
Chris@0:                          :limit => limit).collect(&:changeset)
Chris@0:     end
Chris@0:   end
Chris@0:     
Chris@0:   def scan_changesets_for_issue_ids
Chris@0:     self.changesets.each(&:scan_comment_for_issue_ids)
Chris@0:   end
Chris@0: 
Chris@0:   # Returns an array of committers usernames and associated user_id
Chris@0:   def committers
Chris@0:     @committers ||= Changeset.connection.select_rows("SELECT DISTINCT committer, user_id FROM #{Changeset.table_name} WHERE repository_id = #{id}")
Chris@0:   end
Chris@0:   
Chris@0:   # Maps committers username to a user ids
Chris@0:   def committer_ids=(h)
Chris@0:     if h.is_a?(Hash)
Chris@0:       committers.each do |committer, user_id|
Chris@0:         new_user_id = h[committer]
Chris@0:         if new_user_id && (new_user_id.to_i != user_id.to_i)
Chris@0:           new_user_id = (new_user_id.to_i > 0 ? new_user_id.to_i : nil)
Chris@0:           Changeset.update_all("user_id = #{ new_user_id.nil? ? 'NULL' : new_user_id }", ["repository_id = ? AND committer = ?", id, committer])
Chris@0:         end
Chris@0:       end
Chris@0:       @committers = nil
Chris@0:       @found_committer_users = nil
Chris@0:       true
Chris@0:     else
Chris@0:       false
Chris@0:     end
Chris@0:   end
Chris@0:   
Chris@0:   # Returns the Redmine User corresponding to the given +committer+
Chris@0:   # It will return nil if the committer is not yet mapped and if no User
Chris@0:   # with the same username or email was found
Chris@0:   def find_committer_user(committer)
Chris@0:     unless committer.blank?
Chris@0:       @found_committer_users ||= {}
Chris@0:       return @found_committer_users[committer] if @found_committer_users.has_key?(committer)
Chris@0:       
Chris@0:       user = nil
Chris@0:       c = changesets.find(:first, :conditions => {:committer => committer}, :include => :user)
Chris@0:       if c && c.user
Chris@0:         user = c.user
Chris@0:       elsif committer.strip =~ /^([^<]+)(<(.*)>)?$/
Chris@0:         username, email = $1.strip, $3
Chris@0:         u = User.find_by_login(username)
Chris@0:         u ||= User.find_by_mail(email) unless email.blank?
Chris@0:         user = u
Chris@0:       end
Chris@0:       @found_committer_users[committer] = user
Chris@0:       user
Chris@0:     end
Chris@0:   end
Chris@0:   
Chris@0:   # Fetches new changesets for all repositories of active projects
Chris@0:   # Can be called periodically by an external script
Chris@0:   # eg. ruby script/runner "Repository.fetch_changesets"
Chris@0:   def self.fetch_changesets
Chris@0:     Project.active.has_module(:repository).find(:all, :include => :repository).each do |project|
Chris@0:       if project.repository
Chris@0:         project.repository.fetch_changesets
Chris@0:       end
Chris@0:     end
Chris@0:   end
Chris@0:   
Chris@0:   # scan changeset comments to find related and fixed issues for all repositories
Chris@0:   def self.scan_changesets_for_issue_ids
Chris@0:     find(:all).each(&:scan_changesets_for_issue_ids)
Chris@0:   end
Chris@0: 
Chris@0:   def self.scm_name
Chris@0:     'Abstract'
Chris@0:   end
Chris@0:   
Chris@0:   def self.available_scm
Chris@0:     subclasses.collect {|klass| [klass.scm_name, klass.name]}
Chris@0:   end
Chris@0:   
Chris@0:   def self.factory(klass_name, *args)
Chris@0:     klass = "Repository::#{klass_name}".constantize
Chris@0:     klass.new(*args)
Chris@0:   rescue
Chris@0:     nil
Chris@0:   end
Chris@0:   
Chris@0:   private
Chris@0:   
Chris@0:   def before_save
Chris@0:     # Strips url and root_url
Chris@0:     url.strip!
Chris@0:     root_url.strip!
Chris@0:     true
Chris@0:   end
Chris@0:   
Chris@0:   def clear_changesets
Chris@0:     cs, ch, ci = Changeset.table_name, Change.table_name, "#{table_name_prefix}changesets_issues#{table_name_suffix}"
Chris@0:     connection.delete("DELETE FROM #{ch} WHERE #{ch}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
Chris@0:     connection.delete("DELETE FROM #{ci} WHERE #{ci}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
Chris@0:     connection.delete("DELETE FROM #{cs} WHERE #{cs}.repository_id = #{id}")
Chris@0:   end
Chris@0: end