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	git-svn-id: http://redmine.rubyforge.org/svn/trunk@995 e93f8b46-1217-0410-a6f0-8f06a7374b81
		
			
				
	
	
		
			556 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			556 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# redMine - project management software
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# Copyright (C) 2006-2007  Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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# 
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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# 
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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require 'active_record'
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require 'iconv'
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require 'pp'
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namespace :redmine do
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  desc 'Trac migration script'
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  task :migrate_from_trac => :environment do
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    module TracMigrate
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        TICKET_MAP = []
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        DEFAULT_STATUS = IssueStatus.default
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        assigned_status = IssueStatus.find_by_position(2)
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        resolved_status = IssueStatus.find_by_position(3)
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        feedback_status = IssueStatus.find_by_position(4)
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        closed_status = IssueStatus.find :first, :conditions => { :is_closed => true }
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        STATUS_MAPPING = {'new' => DEFAULT_STATUS,
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                          'reopened' => feedback_status,
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                          'assigned' => assigned_status,
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                          'closed' => closed_status
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                          }
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        priorities = Enumeration.get_values('IPRI')
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        DEFAULT_PRIORITY = priorities[0]
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        PRIORITY_MAPPING = {'lowest' => priorities[0],
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                            'low' => priorities[0],
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                            'normal' => priorities[1],
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                            'high' => priorities[2],
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                            'highest' => priorities[3]
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                            }
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        TRACKER_BUG = Tracker.find_by_position(1)
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        TRACKER_FEATURE = Tracker.find_by_position(2)
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        DEFAULT_TRACKER = TRACKER_BUG
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        TRACKER_MAPPING = {'defect' => TRACKER_BUG,
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                           'enhancement' => TRACKER_FEATURE,
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                           'task' => TRACKER_FEATURE,
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                           'patch' =>TRACKER_FEATURE
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                           }
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        roles = Role.find(:all, :conditions => {:builtin => 0}, :order => 'position ASC')
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        manager_role = roles[0]
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        developer_role = roles[1]
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        DEFAULT_ROLE = roles.last
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        ROLE_MAPPING = {'admin' => manager_role,
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                        'developer' => developer_role
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                        }
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      class TracComponent < ActiveRecord::Base
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        set_table_name :component
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      end
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      class TracMilestone < ActiveRecord::Base
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        set_table_name :milestone
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        def due
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          if read_attribute(:due) > 0
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            Time.at(read_attribute(:due)).to_date
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          else
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            nil
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          end
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        end
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      end
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      class TracTicketCustom < ActiveRecord::Base
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        set_table_name :ticket_custom
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      end
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      class TracAttachment < ActiveRecord::Base
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        set_table_name :attachment
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        set_inheritance_column :none
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        def time; Time.at(read_attribute(:time)) end
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        def original_filename
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          filename
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        end
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        def content_type
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          Redmine::MimeType.of(filename) || ''
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        end
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        def exist?
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          File.file? trac_fullpath
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        end
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        def read
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          File.open("#{trac_fullpath}", 'rb').read
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        end
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      private
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        def trac_fullpath
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          attachment_type = read_attribute(:type)
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          trac_file = filename.gsub( /[^a-zA-Z0-9\-_\.!~*']/n ) {|x| sprintf('%%%02x', x[0]) }
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          "#{TracMigrate.trac_attachments_directory}/#{attachment_type}/#{id}/#{trac_file}"
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        end
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      end
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      class TracTicket < ActiveRecord::Base
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        set_table_name :ticket
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        set_inheritance_column :none
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        # ticket changes: only migrate status changes and comments
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        has_many :changes, :class_name => "TracTicketChange", :foreign_key => :ticket
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        has_many :attachments, :class_name => "TracAttachment", :foreign_key => :id, :conditions => "#{TracMigrate::TracAttachment.table_name}.type = 'ticket'"
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        has_many :customs, :class_name => "TracTicketCustom", :foreign_key => :ticket
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        def ticket_type
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          read_attribute(:type)
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        end
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        def summary
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          read_attribute(:summary).blank? ? "(no subject)" : read_attribute(:summary)
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        end
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        def description
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          read_attribute(:description).blank? ? summary : read_attribute(:description)
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        end
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        def time; Time.at(read_attribute(:time)) end
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      end
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      class TracTicketChange < ActiveRecord::Base
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        set_table_name :ticket_change
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        def time; Time.at(read_attribute(:time)) end
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      end
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      class TracWikiPage < ActiveRecord::Base
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        set_table_name :wiki  
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        def self.columns
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          # Hides readonly Trac field to prevent clash with AR readonly? method (Rails 2.0)
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          super.select {|column| column.name.to_s != 'readonly'}
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        end
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      end
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      class TracPermission < ActiveRecord::Base
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        set_table_name :permission  
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      end
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      def self.find_or_create_user(username, project_member = false)
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        u = User.find_by_login(username)
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        if !u
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          # Create a new user if not found
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          mail = username[0,limit_for(User, 'mail')]
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          mail = "#{mail}@foo.bar" unless mail.include?("@")
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          u = User.new :firstname => username[0,limit_for(User, 'firstname')].gsub(/[^\w\s\'\-]/i, '-'),
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                       :lastname => '-',
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                       :mail => mail.gsub(/[^-@a-z0-9\.]/i, '-')
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          u.login = username[0,limit_for(User, 'login')].gsub(/[^a-z0-9_\-@\.]/i, '-')
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          u.password = 'trac'
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          u.admin = true if TracPermission.find_by_username_and_action(username, 'admin')
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          # finally, a default user is used if the new user is not valid
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          u = User.find(:first) unless u.save
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        end
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        # Make sure he is a member of the project
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        if project_member && !u.member_of?(@target_project)
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          role = DEFAULT_ROLE
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          if u.admin
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            role = ROLE_MAPPING['admin']
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          elsif TracPermission.find_by_username_and_action(username, 'developer')
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            role = ROLE_MAPPING['developer']
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          end
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          Member.create(:user => u, :project => @target_project, :role => role)
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          u.reload
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        end
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        u
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      end
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      # Basic wiki syntax conversion
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      def self.convert_wiki_text(text)
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        # Titles
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        text = text.gsub(/^(\=+)\s(.+)\s(\=+)/) {|s| "\nh#{$1.length}. #{$2}\n"}
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        # External Links
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        text = text.gsub(/\[(http[^\s]+)\s+([^\]]+)\]/) {|s| "\"#{$2}\":#{$1}"}
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        # Internal Links
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        text = text.gsub(/\[\[BR\]\]/, "\n") # This has to go before the rules below
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        text = text.gsub(/\[\"(.+)\".*\]/) {|s| "[[#{$1.delete(',./?;|:')}]]"}
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        text = text.gsub(/\[wiki:\"(.+)\".*\]/) {|s| "[[#{$1.delete(',./?;|:')}]]"}
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        text = text.gsub(/\[wiki:\"(.+)\".*\]/) {|s| "[[#{$1.delete(',./?;|:')}]]"}
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        text = text.gsub(/\[wiki:([^\s\]]+).*\]/) {|s| "[[#{$1.delete(',./?;|:')}]]"}
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        # Revisions links
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        text = text.gsub(/\[(\d+)\]/, 'r\1')
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        # Ticket number re-writing
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        text = text.gsub(/#(\d+)/) do |s|
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          TICKET_MAP[$1.to_i] ||= $1
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          "\##{TICKET_MAP[$1.to_i] || $1}"
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        end
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        # Preformatted blocks
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        text = text.gsub(/\{\{\{/, '<pre>')
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        text = text.gsub(/\}\}\}/, '</pre>')          
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        # Highlighting
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        text = text.gsub(/'''''([^\s])/, '_*\1')
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        text = text.gsub(/([^\s])'''''/, '\1*_')
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        text = text.gsub(/'''/, '*')
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        text = text.gsub(/''/, '_')
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        text = text.gsub(/__/, '+')
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        text = text.gsub(/~~/, '-')
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        text = text.gsub(/`/, '@')
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        text = text.gsub(/,,/, '~')        
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        # Lists
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        text = text.gsub(/^([ ]+)\* /) {|s| '*' * $1.length + " "}
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        text
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      end
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      def self.migrate
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        establish_connection
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        # Quick database test
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        TracComponent.count
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        migrated_components = 0
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        migrated_milestones = 0
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        migrated_tickets = 0
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        migrated_custom_values = 0
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        migrated_ticket_attachments = 0
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        migrated_wiki_edits = 0      
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        # Components
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        print "Migrating components"
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        issues_category_map = {}
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        TracComponent.find(:all).each do |component|
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      	print '.'
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      	STDOUT.flush
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          c = IssueCategory.new :project => @target_project,
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                                :name => encode(component.name[0, limit_for(IssueCategory, 'name')])
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      	next unless c.save
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      	issues_category_map[component.name] = c
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      	migrated_components += 1
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        end
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        puts
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        # Milestones
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        print "Migrating milestones"
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        version_map = {}
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        TracMilestone.find(:all).each do |milestone|
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          print '.'
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          STDOUT.flush
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          v = Version.new :project => @target_project,
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                          :name => encode(milestone.name[0, limit_for(Version, 'name')]),
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                          :description => encode(milestone.description.to_s[0, limit_for(Version, 'description')]),
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                          :effective_date => milestone.due
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          next unless v.save
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          version_map[milestone.name] = v
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          migrated_milestones += 1
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        end
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        puts
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        # Custom fields
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        # TODO: read trac.ini instead
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        print "Migrating custom fields"
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        custom_field_map = {}
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        TracTicketCustom.find_by_sql("SELECT DISTINCT name FROM #{TracTicketCustom.table_name}").each do |field|
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          print '.'
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          STDOUT.flush
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          # Redmine custom field name
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          field_name = encode(field.name[0, limit_for(IssueCustomField, 'name')]).humanize
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          # Find if the custom already exists in Redmine
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          f = IssueCustomField.find_by_name(field_name)
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          # Or create a new one
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          f ||= IssueCustomField.create(:name => encode(field.name[0, limit_for(IssueCustomField, 'name')]).humanize,
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                                        :field_format => 'string')
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          next if f.new_record?
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          f.trackers = Tracker.find(:all)
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          f.projects << @target_project
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          custom_field_map[field.name] = f
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        end
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        puts
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        # Trac 'resolution' field as a Redmine custom field
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        r = IssueCustomField.find(:first, :conditions => { :name => "Resolution" })
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        r = IssueCustomField.new(:name => 'Resolution',
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                                 :field_format => 'list',
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                                 :is_filter => true) if r.nil?
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        r.trackers = Tracker.find(:all)
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        r.projects << @target_project
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        r.possible_values = %w(fixed invalid wontfix duplicate worksforme)
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        custom_field_map['resolution'] = r if r.save
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        # Tickets
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        print "Migrating tickets"
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          TracTicket.find(:all, :order => 'id ASC').each do |ticket|
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        	print '.'
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        	STDOUT.flush
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        	i = Issue.new :project => @target_project, 
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                          :subject => encode(ticket.summary[0, limit_for(Issue, 'subject')]),
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                          :description => convert_wiki_text(encode(ticket.description)),
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                          :priority => PRIORITY_MAPPING[ticket.priority] || DEFAULT_PRIORITY,
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                          :created_on => ticket.time
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        	i.author = find_or_create_user(ticket.reporter)    	
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        	i.category = issues_category_map[ticket.component] unless ticket.component.blank?
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        	i.fixed_version = version_map[ticket.milestone] unless ticket.milestone.blank?
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        	i.status = STATUS_MAPPING[ticket.status] || DEFAULT_STATUS
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        	i.tracker = TRACKER_MAPPING[ticket.ticket_type] || DEFAULT_TRACKER
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        	i.custom_values << CustomValue.new(:custom_field => custom_field_map['resolution'], :value => ticket.resolution) unless ticket.resolution.blank?
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        	i.id = ticket.id unless Issue.exists?(ticket.id)
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        	next unless i.save
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        	TICKET_MAP[ticket.id] = i.id
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        	migrated_tickets += 1
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        	# Owner
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            unless ticket.owner.blank?
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              i.assigned_to = find_or_create_user(ticket.owner, true)
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              i.save
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            end
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        	# Comments and status/resolution changes
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        	ticket.changes.group_by(&:time).each do |time, changeset|
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              status_change = changeset.select {|change| change.field == 'status'}.first
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              resolution_change = changeset.select {|change| change.field == 'resolution'}.first
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              comment_change = changeset.select {|change| change.field == 'comment'}.first
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              n = Journal.new :notes => (comment_change ? convert_wiki_text(encode(comment_change.newvalue)) : ''),
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                              :created_on => time
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              n.user = find_or_create_user(changeset.first.author)
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              n.journalized = i
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              if status_change && 
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                   STATUS_MAPPING[status_change.oldvalue] &&
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                   STATUS_MAPPING[status_change.newvalue] &&
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                   (STATUS_MAPPING[status_change.oldvalue] != STATUS_MAPPING[status_change.newvalue])
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                n.details << JournalDetail.new(:property => 'attr',
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                                               :prop_key => 'status_id',
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                                               :old_value => STATUS_MAPPING[status_change.oldvalue].id,
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                                               :value => STATUS_MAPPING[status_change.newvalue].id)
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              end
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              if resolution_change
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                n.details << JournalDetail.new(:property => 'cf',
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                                               :prop_key => custom_field_map['resolution'].id,
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                                               :old_value => resolution_change.oldvalue,
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                                               :value => resolution_change.newvalue)
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              end
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              n.save unless n.details.empty? && n.notes.blank?
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        	end
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        	# Attachments
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        	ticket.attachments.each do |attachment|
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        	  next unless attachment.exist?
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              a = Attachment.new :created_on => attachment.time
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              a.file = attachment
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              a.author = find_or_create_user(attachment.author)
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              a.container = i
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              migrated_ticket_attachments += 1 if a.save
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        	end
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        	# Custom fields
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        	ticket.customs.each do |custom|
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        	  next if custom_field_map[custom.name].nil?
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              v = CustomValue.new :custom_field => custom_field_map[custom.name],
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                                  :value => custom.value
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              v.customized = i
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              next unless v.save
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              migrated_custom_values += 1
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        	end
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        end
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        puts
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        # Wiki      
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        print "Migrating wiki"
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        @target_project.wiki.destroy if @target_project.wiki
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        @target_project.reload
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        wiki = Wiki.new(:project => @target_project, :start_page => 'WikiStart')
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        if wiki.save
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          TracWikiPage.find(:all, :order => 'name, version').each do |page|
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            print '.'
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            STDOUT.flush
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            p = wiki.find_or_new_page(page.name)
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            p.content = WikiContent.new(:page => p) if p.new_record?
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            p.content.text = page.text
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            p.content.author = find_or_create_user(page.author) unless page.author.blank? || page.author == 'trac'
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            p.content.comments = page.comment
 | 
						|
            p.new_record? ? p.save : p.content.save
 | 
						|
            migrated_wiki_edits += 1 unless p.content.new_record?
 | 
						|
          end
 | 
						|
          
 | 
						|
          wiki.reload
 | 
						|
          wiki.pages.each do |page|
 | 
						|
            page.content.text = convert_wiki_text(page.content.text)
 | 
						|
            page.content.save
 | 
						|
          end
 | 
						|
        end
 | 
						|
        puts
 | 
						|
        
 | 
						|
        puts
 | 
						|
        puts "Components:      #{migrated_components}/#{TracComponent.count}"
 | 
						|
        puts "Milestones:      #{migrated_milestones}/#{TracMilestone.count}"
 | 
						|
        puts "Tickets:         #{migrated_tickets}/#{TracTicket.count}"
 | 
						|
        puts "Ticket files:    #{migrated_ticket_attachments}/" + TracAttachment.count("type = 'ticket'").to_s
 | 
						|
        puts "Custom values:   #{migrated_custom_values}/#{TracTicketCustom.count}"
 | 
						|
        puts "Wiki edits:      #{migrated_wiki_edits}/#{TracWikiPage.count}"
 | 
						|
      end
 | 
						|
      
 | 
						|
      def self.limit_for(klass, attribute)
 | 
						|
        klass.columns_hash[attribute.to_s].limit
 | 
						|
      end
 | 
						|
      
 | 
						|
      def self.encoding(charset)
 | 
						|
        @ic = Iconv.new('UTF-8', charset)
 | 
						|
      rescue Iconv::InvalidEncoding
 | 
						|
        puts "Invalid encoding!"
 | 
						|
        return false
 | 
						|
      end
 | 
						|
      
 | 
						|
      def self.set_trac_directory(path)
 | 
						|
        @@trac_directory = path
 | 
						|
        raise "This directory doesn't exist!" unless File.directory?(path)
 | 
						|
        raise "#{trac_attachments_directory} doesn't exist!" unless File.directory?(trac_attachments_directory)
 | 
						|
        @@trac_directory
 | 
						|
      rescue Exception => e
 | 
						|
        puts e
 | 
						|
        return false
 | 
						|
      end
 | 
						|
 | 
						|
      def self.trac_directory
 | 
						|
        @@trac_directory
 | 
						|
      end
 | 
						|
 | 
						|
      def self.set_trac_adapter(adapter)
 | 
						|
        return false if adapter.blank?
 | 
						|
        raise "Unknown adapter: #{adapter}!" unless %w(sqlite sqlite3 mysql postgresql).include?(adapter)
 | 
						|
        # If adapter is sqlite or sqlite3, make sure that trac.db exists
 | 
						|
        raise "#{trac_db_path} doesn't exist!" if %w(sqlite sqlite3).include?(adapter) && !File.exist?(trac_db_path)
 | 
						|
        @@trac_adapter = adapter
 | 
						|
      rescue Exception => e
 | 
						|
        puts e
 | 
						|
        return false
 | 
						|
      end
 | 
						|
      
 | 
						|
      def self.set_trac_db_host(host)
 | 
						|
        return nil if host.blank?
 | 
						|
        @@trac_db_host = host
 | 
						|
      end
 | 
						|
 | 
						|
      def self.set_trac_db_port(port)
 | 
						|
        return nil if port.to_i == 0
 | 
						|
        @@trac_db_port = port.to_i
 | 
						|
      end
 | 
						|
      
 | 
						|
      def self.set_trac_db_name(name)
 | 
						|
        return nil if name.blank?
 | 
						|
        @@trac_db_name = name
 | 
						|
      end
 | 
						|
 | 
						|
      def self.set_trac_db_username(username)
 | 
						|
        @@trac_db_username = username
 | 
						|
      end
 | 
						|
      
 | 
						|
      def self.set_trac_db_password(password)
 | 
						|
        @@trac_db_password = password
 | 
						|
      end
 | 
						|
      
 | 
						|
      mattr_reader :trac_directory, :trac_adapter, :trac_db_host, :trac_db_port, :trac_db_name, :trac_db_username, :trac_db_password
 | 
						|
      
 | 
						|
      def self.trac_db_path; "#{trac_directory}/db/trac.db" end
 | 
						|
      def self.trac_attachments_directory; "#{trac_directory}/attachments" end
 | 
						|
      
 | 
						|
      def self.target_project_identifier(identifier)
 | 
						|
        project = Project.find_by_identifier(identifier)        
 | 
						|
        if !project
 | 
						|
          # create the target project
 | 
						|
          project = Project.new :name => identifier.humanize,
 | 
						|
                                :description => identifier.humanize
 | 
						|
          project.identifier = identifier
 | 
						|
          puts "Unable to create a project with identifier '#{identifier}'!" unless project.save
 | 
						|
          # enable issues and wiki for the created project
 | 
						|
          project.enabled_module_names = ['issue_tracking', 'wiki']
 | 
						|
        end        
 | 
						|
        project.trackers << TRACKER_BUG
 | 
						|
        project.trackers << TRACKER_FEATURE          
 | 
						|
        @target_project = project.new_record? ? nil : project
 | 
						|
      end
 | 
						|
      
 | 
						|
      def self.connection_params
 | 
						|
        if %w(sqlite sqlite3).include?(trac_adapter)
 | 
						|
          {:adapter => trac_adapter, 
 | 
						|
           :database => trac_db_path}
 | 
						|
        else
 | 
						|
          {:adapter => trac_adapter,
 | 
						|
           :database => trac_db_name,
 | 
						|
           :host => trac_db_host,
 | 
						|
           :port => trac_db_port,
 | 
						|
           :username => trac_db_username,
 | 
						|
           :password => trac_db_password}
 | 
						|
        end
 | 
						|
      end
 | 
						|
      
 | 
						|
      def self.establish_connection
 | 
						|
        constants.each do |const|
 | 
						|
          klass = const_get(const)
 | 
						|
          next unless klass.respond_to? 'establish_connection'
 | 
						|
          klass.establish_connection connection_params
 | 
						|
        end
 | 
						|
      end
 | 
						|
      
 | 
						|
    private
 | 
						|
      def self.encode(text)
 | 
						|
        @ic.iconv text
 | 
						|
      rescue
 | 
						|
        text
 | 
						|
      end
 | 
						|
    end
 | 
						|
    
 | 
						|
    puts
 | 
						|
    puts "WARNING: a new project will be added to Redmine during this process."
 | 
						|
    print "Are you sure you want to continue ? [y/N] "
 | 
						|
    break unless STDIN.gets.match(/^y$/i)  
 | 
						|
    puts
 | 
						|
 | 
						|
    def prompt(text, options = {}, &block)
 | 
						|
      default = options[:default] || ''
 | 
						|
      while true
 | 
						|
        print "#{text} [#{default}]: "
 | 
						|
        value = STDIN.gets.chomp!
 | 
						|
        value = default if value.blank?
 | 
						|
        break if yield value
 | 
						|
      end
 | 
						|
    end
 | 
						|
    
 | 
						|
    DEFAULT_PORTS = {'mysql' => 3306, 'postgresl' => 5432}
 | 
						|
    
 | 
						|
    prompt('Trac directory') {|directory| TracMigrate.set_trac_directory directory}
 | 
						|
    prompt('Trac database adapter (sqlite, sqlite3, mysql, postgresql)', :default => 'sqlite') {|adapter| TracMigrate.set_trac_adapter adapter}
 | 
						|
    unless %w(sqlite sqlite3).include?(TracMigrate.trac_adapter)
 | 
						|
      prompt('Trac database host', :default => 'localhost') {|host| TracMigrate.set_trac_db_host host}
 | 
						|
      prompt('Trac database port', :default => DEFAULT_PORTS[TracMigrate.trac_adapter]) {|port| TracMigrate.set_trac_db_port port}
 | 
						|
      prompt('Trac database name') {|name| TracMigrate.set_trac_db_name name}
 | 
						|
      prompt('Trac database username') {|username| TracMigrate.set_trac_db_username username}
 | 
						|
      prompt('Trac database password') {|password| TracMigrate.set_trac_db_password password}
 | 
						|
    end
 | 
						|
    prompt('Trac database encoding', :default => 'UTF-8') {|encoding| TracMigrate.encoding encoding}
 | 
						|
    prompt('Target project identifier') {|identifier| TracMigrate.target_project_identifier identifier}
 | 
						|
    puts
 | 
						|
    
 | 
						|
    TracMigrate.migrate
 | 
						|
  end
 | 
						|
end
 |