obsolete.ChilliProject/lib/tasks/migrate_from_trac.rake

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# redMine - project management software
# Copyright (C) 2006-2007 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 'active_record'
require 'iconv'
require 'pp'
namespace :redmine do
desc 'Trac migration script'
task :migrate_from_trac => :environment do
module TracMigrate
TICKET_MAP = []
DEFAULT_STATUS = IssueStatus.default
assigned_status = IssueStatus.find_by_position(2)
resolved_status = IssueStatus.find_by_position(3)
feedback_status = IssueStatus.find_by_position(4)
closed_status = IssueStatus.find :first, :conditions => { :is_closed => true }
STATUS_MAPPING = {'new' => DEFAULT_STATUS,
'reopened' => feedback_status,
'assigned' => assigned_status,
'closed' => closed_status
}
priorities = Enumeration.get_values('IPRI')
DEFAULT_PRIORITY = priorities[0]
PRIORITY_MAPPING = {'lowest' => priorities[0],
'low' => priorities[0],
'normal' => priorities[1],
'high' => priorities[2],
'highest' => priorities[3]
}
TRACKER_BUG = Tracker.find_by_position(1)
TRACKER_FEATURE = Tracker.find_by_position(2)
DEFAULT_TRACKER = TRACKER_BUG
TRACKER_MAPPING = {'defect' => TRACKER_BUG,
'enhancement' => TRACKER_FEATURE,
'task' => TRACKER_FEATURE,
'patch' =>TRACKER_FEATURE
}
roles = Role.find(:all, :conditions => {:builtin => 0}, :order => 'position ASC')
manager_role = roles[0]
developer_role = roles[1]
DEFAULT_ROLE = roles.last
ROLE_MAPPING = {'admin' => manager_role,
'developer' => developer_role
}
class TracComponent < ActiveRecord::Base
set_table_name :component
end
class TracMilestone < ActiveRecord::Base
set_table_name :milestone
def due
if read_attribute(:due) > 0
Time.at(read_attribute(:due)).to_date
else
nil
end
end
end
class TracTicketCustom < ActiveRecord::Base
set_table_name :ticket_custom
end
class TracAttachment < ActiveRecord::Base
set_table_name :attachment
set_inheritance_column :none
def time; Time.at(read_attribute(:time)) end
def original_filename
filename
end
def content_type
Redmine::MimeType.of(filename) || ''
end
def exist?
File.file? trac_fullpath
end
def read
File.open("#{trac_fullpath}", 'rb').read
end
private
def trac_fullpath
attachment_type = read_attribute(:type)
trac_file = filename.gsub( /[^a-zA-Z0-9\-_\.!~*']/n ) {|x| sprintf('%%%02x', x[0]) }
"#{TracMigrate.trac_attachments_directory}/#{attachment_type}/#{id}/#{trac_file}"
end
end
class TracTicket < ActiveRecord::Base
set_table_name :ticket
set_inheritance_column :none
# ticket changes: only migrate status changes and comments
has_many :changes, :class_name => "TracTicketChange", :foreign_key => :ticket
has_many :attachments, :class_name => "TracAttachment", :foreign_key => :id, :conditions => "#{TracMigrate::TracAttachment.table_name}.type = 'ticket'"
has_many :customs, :class_name => "TracTicketCustom", :foreign_key => :ticket
def ticket_type
read_attribute(:type)
end
def summary
read_attribute(:summary).blank? ? "(no subject)" : read_attribute(:summary)
end
def description
read_attribute(:description).blank? ? summary : read_attribute(:description)
end
def time; Time.at(read_attribute(:time)) end
end
class TracTicketChange < ActiveRecord::Base
set_table_name :ticket_change
def time; Time.at(read_attribute(:time)) end
end
class TracWikiPage < ActiveRecord::Base
set_table_name :wiki
def self.columns
# Hides readonly Trac field to prevent clash with AR readonly? method (Rails 2.0)
super.select {|column| column.name.to_s != 'readonly'}
end
end
class TracPermission < ActiveRecord::Base
set_table_name :permission
end
def self.find_or_create_user(username, project_member = false)
u = User.find_by_login(username)
if !u
# Create a new user if not found
mail = username[0,limit_for(User, 'mail')]
mail = "#{mail}@foo.bar" unless mail.include?("@")
u = User.new :firstname => username[0,limit_for(User, 'firstname')].gsub(/[^\w\s\'\-]/i, '-'),
:lastname => '-',
:mail => mail.gsub(/[^-@a-z0-9\.]/i, '-')
u.login = username[0,limit_for(User, 'login')].gsub(/[^a-z0-9_\-@\.]/i, '-')
u.password = 'trac'
u.admin = true if TracPermission.find_by_username_and_action(username, 'admin')
# finally, a default user is used if the new user is not valid
u = User.find(:first) unless u.save
end
# Make sure he is a member of the project
if project_member && !u.member_of?(@target_project)
role = DEFAULT_ROLE
if u.admin
role = ROLE_MAPPING['admin']
elsif TracPermission.find_by_username_and_action(username, 'developer')
role = ROLE_MAPPING['developer']
end
Member.create(:user => u, :project => @target_project, :role => role)
u.reload
end
u
end
# Basic wiki syntax conversion
def self.convert_wiki_text(text)
# Titles
text = text.gsub(/^(\=+)\s(.+)\s(\=+)/) {|s| "\nh#{$1.length}. #{$2}\n"}
# External Links
text = text.gsub(/\[(http[^\s]+)\s+([^\]]+)\]/) {|s| "\"#{$2}\":#{$1}"}
# Internal Links
text = text.gsub(/\[\[BR\]\]/, "\n") # This has to go before the rules below
text = text.gsub(/\[\"(.+)\".*\]/) {|s| "[[#{$1.delete(',./?;|:')}]]"}
text = text.gsub(/\[wiki:\"(.+)\".*\]/) {|s| "[[#{$1.delete(',./?;|:')}]]"}
text = text.gsub(/\[wiki:\"(.+)\".*\]/) {|s| "[[#{$1.delete(',./?;|:')}]]"}
text = text.gsub(/\[wiki:([^\s\]]+).*\]/) {|s| "[[#{$1.delete(',./?;|:')}]]"}
# Revisions links
text = text.gsub(/\[(\d+)\]/, 'r\1')
# Ticket number re-writing
text = text.gsub(/#(\d+)/) do |s|
TICKET_MAP[$1.to_i] ||= $1
"\##{TICKET_MAP[$1.to_i] || $1}"
end
# Preformatted blocks
text = text.gsub(/\{\{\{/, '<pre>')
text = text.gsub(/\}\}\}/, '</pre>')
# Highlighting
text = text.gsub(/'''''([^\s])/, '_*\1')
text = text.gsub(/([^\s])'''''/, '\1*_')
text = text.gsub(/'''/, '*')
text = text.gsub(/''/, '_')
text = text.gsub(/__/, '+')
text = text.gsub(/~~/, '-')
text = text.gsub(/`/, '@')
text = text.gsub(/,,/, '~')
# Lists
text = text.gsub(/^([ ]+)\* /) {|s| '*' * $1.length + " "}
text
end
def self.migrate
establish_connection
# Quick database test
TracComponent.count
migrated_components = 0
migrated_milestones = 0
migrated_tickets = 0
migrated_custom_values = 0
migrated_ticket_attachments = 0
migrated_wiki_edits = 0
# Components
print "Migrating components"
issues_category_map = {}
TracComponent.find(:all).each do |component|
print '.'
STDOUT.flush
c = IssueCategory.new :project => @target_project,
:name => encode(component.name[0, limit_for(IssueCategory, 'name')])
next unless c.save
issues_category_map[component.name] = c
migrated_components += 1
end
puts
# Milestones
print "Migrating milestones"
version_map = {}
TracMilestone.find(:all).each do |milestone|
print '.'
STDOUT.flush
v = Version.new :project => @target_project,
:name => encode(milestone.name[0, limit_for(Version, 'name')]),
:description => encode(milestone.description.to_s[0, limit_for(Version, 'description')]),
:effective_date => milestone.due
next unless v.save
version_map[milestone.name] = v
migrated_milestones += 1
end
puts
# Custom fields
# TODO: read trac.ini instead
print "Migrating custom fields"
custom_field_map = {}
TracTicketCustom.find_by_sql("SELECT DISTINCT name FROM #{TracTicketCustom.table_name}").each do |field|
print '.'
STDOUT.flush
# Redmine custom field name
field_name = encode(field.name[0, limit_for(IssueCustomField, 'name')]).humanize
# Find if the custom already exists in Redmine
f = IssueCustomField.find_by_name(field_name)
# Or create a new one
f ||= IssueCustomField.create(:name => encode(field.name[0, limit_for(IssueCustomField, 'name')]).humanize,
:field_format => 'string')
next if f.new_record?
f.trackers = Tracker.find(:all)
f.projects << @target_project
custom_field_map[field.name] = f
end
puts
# Trac 'resolution' field as a Redmine custom field
r = IssueCustomField.find(:first, :conditions => { :name => "Resolution" })
r = IssueCustomField.new(:name => 'Resolution',
:field_format => 'list',
:is_filter => true) if r.nil?
r.trackers = Tracker.find(:all)
r.projects << @target_project
r.possible_values = %w(fixed invalid wontfix duplicate worksforme)
custom_field_map['resolution'] = r if r.save
# Tickets
print "Migrating tickets"
TracTicket.find(:all, :order => 'id ASC').each do |ticket|
print '.'
STDOUT.flush
i = Issue.new :project => @target_project,
:subject => encode(ticket.summary[0, limit_for(Issue, 'subject')]),
:description => convert_wiki_text(encode(ticket.description)),
:priority => PRIORITY_MAPPING[ticket.priority] || DEFAULT_PRIORITY,
:created_on => ticket.time
i.author = find_or_create_user(ticket.reporter)
i.category = issues_category_map[ticket.component] unless ticket.component.blank?
i.fixed_version = version_map[ticket.milestone] unless ticket.milestone.blank?
i.status = STATUS_MAPPING[ticket.status] || DEFAULT_STATUS
i.tracker = TRACKER_MAPPING[ticket.ticket_type] || DEFAULT_TRACKER
i.custom_values << CustomValue.new(:custom_field => custom_field_map['resolution'], :value => ticket.resolution) unless ticket.resolution.blank?
i.id = ticket.id unless Issue.exists?(ticket.id)
next unless i.save
TICKET_MAP[ticket.id] = i.id
migrated_tickets += 1
# Owner
unless ticket.owner.blank?
i.assigned_to = find_or_create_user(ticket.owner, true)
i.save
end
# Comments and status/resolution changes
ticket.changes.group_by(&:time).each do |time, changeset|
status_change = changeset.select {|change| change.field == 'status'}.first
resolution_change = changeset.select {|change| change.field == 'resolution'}.first
comment_change = changeset.select {|change| change.field == 'comment'}.first
n = Journal.new :notes => (comment_change ? convert_wiki_text(encode(comment_change.newvalue)) : ''),
:created_on => time
n.user = find_or_create_user(changeset.first.author)
n.journalized = i
if status_change &&
STATUS_MAPPING[status_change.oldvalue] &&
STATUS_MAPPING[status_change.newvalue] &&
(STATUS_MAPPING[status_change.oldvalue] != STATUS_MAPPING[status_change.newvalue])
n.details << JournalDetail.new(:property => 'attr',
:prop_key => 'status_id',
:old_value => STATUS_MAPPING[status_change.oldvalue].id,
:value => STATUS_MAPPING[status_change.newvalue].id)
end
if resolution_change
n.details << JournalDetail.new(:property => 'cf',
:prop_key => custom_field_map['resolution'].id,
:old_value => resolution_change.oldvalue,
:value => resolution_change.newvalue)
end
n.save unless n.details.empty? && n.notes.blank?
end
# Attachments
ticket.attachments.each do |attachment|
next unless attachment.exist?
a = Attachment.new :created_on => attachment.time
a.file = attachment
a.author = find_or_create_user(attachment.author)
a.container = i
migrated_ticket_attachments += 1 if a.save
end
# Custom fields
ticket.customs.each do |custom|
next if custom_field_map[custom.name].nil?
v = CustomValue.new :custom_field => custom_field_map[custom.name],
:value => custom.value
v.customized = i
next unless v.save
migrated_custom_values += 1
end
end
puts
# Wiki
print "Migrating wiki"
@target_project.wiki.destroy if @target_project.wiki
@target_project.reload
wiki = Wiki.new(:project => @target_project, :start_page => 'WikiStart')
if wiki.save
TracWikiPage.find(:all, :order => 'name, version').each do |page|
print '.'
STDOUT.flush
p = wiki.find_or_new_page(page.name)
p.content = WikiContent.new(:page => p) if p.new_record?
p.content.text = page.text
p.content.author = find_or_create_user(page.author) unless page.author.blank? || page.author == 'trac'
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