jro_apps/redmine Commit - r12118:765ee4c62d22

Merged r12273 from trunk to 2.3-stable....

Toshi MARUYAMA -

r12118:765ee4c62d22

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r12118:765ee4c62d22

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lib/redmine/scm/adapters.rb created 644 +25 0

@@ -0,0 +1,25
	1	# Redmine - project management software
	2	# Copyright (C) 2006-2013 Jean-Philippe Lang
	3	#
	4	# This program is free software; you can redistribute it and/or
	5	# modify it under the terms of the GNU General Public License
	6	# as published by the Free Software Foundation; either version 2
	7	# of the License, or (at your option) any later version.
	8	#
	9	# This program is distributed in the hope that it will be useful,
	10	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	# GNU General Public License for more details.
	13	#
	14	# You should have received a copy of the GNU General Public License
	15	# along with this program; if not, write to the Free Software
	16	# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	17
	18	module Redmine
	19	module Scm
	20	module Adapters
	21	class CommandFailed < StandardError #:nodoc:
	22	end
	23	end
	24	end
	25	end

app/controllers/repositories_controller.rb +1 -1

             # Redmine - project management software
             # Copyright (C) 2006-2013  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 'SVG/Graph/Bar'
             require 'SVG/Graph/BarHorizontal'
             require 'digest/sha1'
-            require 'redmine/scm/adapters/abstract_adapter'
+            require 'redmine/scm/adapters'
             class ChangesetNotFound < Exception; end
             class InvalidRevisionParam < Exception; end
             class RepositoriesController < ApplicationController
               menu_item :repository
               menu_item :settings, :only => [:new, :create, :edit, :update, :destroy, :committers]
               default_search_scope :changesets
               before_filter :find_project_by_project_id, :only => [:new, :create]
               before_filter :find_repository, :only => [:edit, :update, :destroy, :committers]
               before_filter :find_project_repository, :except => [:new, :create, :edit, :update, :destroy, :committers]
               before_filter :find_changeset, :only => [:revision, :add_related_issue, :remove_related_issue]
               before_filter :authorize
               accept_rss_auth :revisions
               rescue_from Redmine::Scm::Adapters::CommandFailed, :with => :show_error_command_failed
               def new
                 scm = params[:repository_scm] || (Redmine::Scm::Base.all & Setting.enabled_scm).first
                 @repository = Repository.factory(scm)
                 @repository.is_default = @project.repository.nil?
                 @repository.project = @project
               end
               def create
                 attrs = pickup_extra_info
                 @repository = Repository.factory(params[:repository_scm])
                 @repository.safe_attributes = params[:repository]
                 if attrs[:attrs_extra].keys.any?
                   @repository.merge_extra_info(attrs[:attrs_extra])
                 end
                 @repository.project = @project
                 if request.post? && @repository.save
                   redirect_to settings_project_path(@project, :tab => 'repositories')
                 else
                   render :action => 'new'
                 end
               end
               def edit
               end
               def update
                 attrs = pickup_extra_info
                 @repository.safe_attributes = attrs[:attrs]
                 if attrs[:attrs_extra].keys.any?
                   @repository.merge_extra_info(attrs[:attrs_extra])
                 end
                 @repository.project = @project
                 if request.put? && @repository.save
                   redirect_to settings_project_path(@project, :tab => 'repositories')
                 else
                   render :action => 'edit'
                 end
               end
               def pickup_extra_info
                 p       = {}
                 p_extra = {}
                 params[:repository].each do |k, v|
                   if k =~ /^extra_/
                     p_extra[k] = v
                   else
                     p[k] = v
                   end
                 end
                 {:attrs => p, :attrs_extra => p_extra}
               end
               private :pickup_extra_info
               def committers
                 @committers = @repository.committers
                 @users = @project.users
                 additional_user_ids = @committers.collect(&:last).collect(&:to_i) - @users.collect(&:id)
                 @users += User.find_all_by_id(additional_user_ids) unless additional_user_ids.empty?
                 @users.compact!
                 @users.sort!
                 if request.post? && params[:committers].is_a?(Hash)
                   # Build a hash with repository usernames as keys and corresponding user ids as values
                   @repository.committer_ids = params[:committers].values.inject({}) {|h, c| h[c.first] = c.last; h}
                   flash[:notice] = l(:notice_successful_update)
                   redirect_to settings_project_path(@project, :tab => 'repositories')
                 end
               end
               def destroy
                 @repository.destroy if request.delete?
                 redirect_to settings_project_path(@project, :tab => 'repositories')
               end
               def show
                 @repository.fetch_changesets if Setting.autofetch_changesets? && @path.empty?
                 @entries = @repository.entries(@path, @rev)
                 @changeset = @repository.find_changeset_by_name(@rev)
                 if request.xhr?
                   @entries ? render(:partial => 'dir_list_content') : render(:nothing => true)
                 else
                   (show_error_not_found; return) unless @entries
                   @changesets = @repository.latest_changesets(@path, @rev)
                   @properties = @repository.properties(@path, @rev)
                   @repositories = @project.repositories
                   render :action => 'show'
                 end
               end
               alias_method :browse, :show
               def changes
                 @entry = @repository.entry(@path, @rev)
                 (show_error_not_found; return) unless @entry
                 @changesets = @repository.latest_changesets(@path, @rev, Setting.repository_log_display_limit.to_i)
                 @properties = @repository.properties(@path, @rev)
                 @changeset = @repository.find_changeset_by_name(@rev)
               end
               def revisions
                 @changeset_count = @repository.changesets.count
                 @changeset_pages = Paginator.new @changeset_count,
                                                  per_page_option,
                                                  params['page']
                 @changesets = @repository.changesets.
                   limit(@changeset_pages.per_page).
                   offset(@changeset_pages.offset).
                   includes(:user, :repository, :parents).
                   all
                 respond_to do |format|
                   format.html { render :layout => false if request.xhr? }
                   format.atom { render_feed(@changesets, :title => "#{@project.name}: #{l(:label_revision_plural)}") }
                 end
               end
               def raw
                 entry_and_raw(true)
               end
               def entry
                 entry_and_raw(false)
               end
               def entry_and_raw(is_raw)
                 @entry = @repository.entry(@path, @rev)
                 (show_error_not_found; return) unless @entry
                 # If the entry is a dir, show the browser
                 (show; return) if @entry.is_dir?
                 @content = @repository.cat(@path, @rev)
                 (show_error_not_found; return) unless @content
                 if is_raw ||
                      (@content.size && @content.size > Setting.file_max_size_displayed.to_i.kilobyte) ||
                      ! is_entry_text_data?(@content, @path)
                   # Force the download
                   send_opt = { :filename => filename_for_content_disposition(@path.split('/').last) }
                   send_type = Redmine::MimeType.of(@path)
                   send_opt[:type] = send_type.to_s if send_type
                   send_opt[:disposition] = (Redmine::MimeType.is_type?('image', @path) && !is_raw ? 'inline' : 'attachment')
                   send_data @content, send_opt
                 else
                   # Prevent empty lines when displaying a file with Windows style eol
                   # TODO: UTF-16
                   # Is this needs? AttachmentsController reads file simply.
                   @content.gsub!("\r\n", "\n")
                   @changeset = @repository.find_changeset_by_name(@rev)
                 end
               end
               private :entry_and_raw
               def is_entry_text_data?(ent, path)
                 # UTF-16 contains "\x00".
                 # It is very strict that file contains less than 30% of ascii symbols
                 # in non Western Europe.
                 return true if Redmine::MimeType.is_type?('text', path)
                 # Ruby 1.8.6 has a bug of integer divisions.
                 # http://apidock.com/ruby/v1_8_6_287/String/is_binary_data%3F
                 return false if ent.is_binary_data?
                 true
               end
               private :is_entry_text_data?
               def annotate
                 @entry = @repository.entry(@path, @rev)
                 (show_error_not_found; return) unless @entry
                 @annotate = @repository.scm.annotate(@path, @rev)
                 if @annotate.nil? || @annotate.empty?
                   (render_error l(:error_scm_annotate); return)
                 end
                 ann_buf_size = 0
                 @annotate.lines.each do |buf|
                   ann_buf_size += buf.size
                 end
                 if ann_buf_size > Setting.file_max_size_displayed.to_i.kilobyte
                   (render_error l(:error_scm_annotate_big_text_file); return)
                 end
                 @changeset = @repository.find_changeset_by_name(@rev)
               end
               def revision
                 respond_to do |format|
                   format.html
                   format.js {render :layout => false}
                 end
               end
               # Adds a related issue to a changeset
               # POST /projects/:project_id/repository/(:repository_id/)revisions/:rev/issues
               def add_related_issue
                 @issue = @changeset.find_referenced_issue_by_id(params[:issue_id])
                 if @issue && (!@issue.visible? || @changeset.issues.include?(@issue))
                   @issue = nil
                 end
                 if @issue
                   @changeset.issues << @issue
                 end
               end
               # Removes a related issue from a changeset
               # DELETE /projects/:project_id/repository/(:repository_id/)revisions/:rev/issues/:issue_id
               def remove_related_issue
                 @issue = Issue.visible.find_by_id(params[:issue_id])
                 if @issue
                   @changeset.issues.delete(@issue)
                 end
               end
               def diff
                 if params[:format] == 'diff'
                   @diff = @repository.diff(@path, @rev, @rev_to)
                   (show_error_not_found; return) unless @diff
                   filename = "changeset_r#{@rev}"
                   filename << "_r#{@rev_to}" if @rev_to
                   send_data @diff.join, :filename => "#{filename}.diff",
                                         :type => 'text/x-patch',
                                         :disposition => 'attachment'
                 else
                   @diff_type = params[:type] || User.current.pref[:diff_type] || 'inline'
                   @diff_type = 'inline' unless %w(inline sbs).include?(@diff_type)
                   # Save diff type as user preference
                   if User.current.logged? && @diff_type != User.current.pref[:diff_type]
                     User.current.pref[:diff_type] = @diff_type
                     User.current.preference.save
                   end
                   @cache_key = "repositories/diff/#{@repository.id}/" +
                                   Digest::MD5.hexdigest("#{@path}-#{@rev}-#{@rev_to}-#{@diff_type}-#{current_language}")
                   unless read_fragment(@cache_key)
                     @diff = @repository.diff(@path, @rev, @rev_to)
                     show_error_not_found unless @diff
                   end
                   @changeset = @repository.find_changeset_by_name(@rev)
                   @changeset_to = @rev_to ? @repository.find_changeset_by_name(@rev_to) : nil
                   @diff_format_revisions = @repository.diff_format_revisions(@changeset, @changeset_to)
                 end
               end
               def stats
               end
               def graph
                 data = nil
                 case params[:graph]
                 when "commits_per_month"
                   data = graph_commits_per_month(@repository)
                 when "commits_per_author"
                   data = graph_commits_per_author(@repository)
                 end
                 if data
                   headers["Content-Type"] = "image/svg+xml"
                   send_data(data, :type => "image/svg+xml", :disposition => "inline")
                 else
                   render_404
                 end
               end
               private
               def find_repository
                 @repository = Repository.find(params[:id])
                 @project = @repository.project
               rescue ActiveRecord::RecordNotFound
                 render_404
               end
               REV_PARAM_RE = %r{\A[a-f0-9]*\Z}i
               def find_project_repository
                 @project = Project.find(params[:id])
                 if params[:repository_id].present?
                   @repository = @project.repositories.find_by_identifier_param(params[:repository_id])
                 else
                   @repository = @project.repository
                 end
                 (render_404; return false) unless @repository
                 @path = params[:path].is_a?(Array) ? params[:path].join('/') : params[:path].to_s
                 @rev = params[:rev].blank? ? @repository.default_branch : params[:rev].to_s.strip
                 @rev_to = params[:rev_to]
                 unless @rev.to_s.match(REV_PARAM_RE) && @rev_to.to_s.match(REV_PARAM_RE)
                   if @repository.branches.blank?
                     raise InvalidRevisionParam
                   end
                 end
               rescue ActiveRecord::RecordNotFound
                 render_404
               rescue InvalidRevisionParam
                 show_error_not_found
               end
               def find_changeset
                 if @rev.present?
                   @changeset = @repository.find_changeset_by_name(@rev)
                 end
                 show_error_not_found unless @changeset
               end
               def show_error_not_found
                 render_error :message => l(:error_scm_not_found), :status => 404
               end
               # Handler for Redmine::Scm::Adapters::CommandFailed exception
               def show_error_command_failed(exception)
                 render_error l(:error_scm_command_failed, exception.message)
               end
               def graph_commits_per_month(repository)
                 @date_to = Date.today
                 @date_from = @date_to << 11
                 @date_from = Date.civil(@date_from.year, @date_from.month, 1)
                 commits_by_day = Changeset.count(
                                       :all, :group => :commit_date,
                                       :conditions => ["repository_id = ? AND commit_date BETWEEN ? AND ?", repository.id, @date_from, @date_to])
                 commits_by_month = [0] * 12
                 commits_by_day.each {|c| commits_by_month[(@date_to.month - c.first.to_date.month) % 12] += c.last }
                 changes_by_day = Change.count(
                                       :all, :group => :commit_date, :include => :changeset,
                                       :conditions => ["#{Changeset.table_name}.repository_id = ? AND #{Changeset.table_name}.commit_date BETWEEN ? AND ?", repository.id, @date_from, @date_to])
                 changes_by_month = [0] * 12
                 changes_by_day.each {|c| changes_by_month[(@date_to.month - c.first.to_date.month) % 12] += c.last }
                 fields = []
 .times {|m| fields << month_name(((Date.today.month - 1 - m) % 12) + 1)}
                 graph = SVG::Graph::Bar.new(
                   :height => 300,
                   :width => 800,
                   :fields => fields.reverse,
                   :stack => :side,
                   :scale_integers => true,
                   :step_x_labels => 2,
                   :show_data_values => false,
                   :graph_title => l(:label_commits_per_month),
                   :show_graph_title => true
                 )
                 graph.add_data(
                   :data => commits_by_month[0..11].reverse,
                   :title => l(:label_revision_plural)
                 )
                 graph.add_data(
                   :data => changes_by_month[0..11].reverse,
                   :title => l(:label_change_plural)
                 )
                 graph.burn
               end
               def graph_commits_per_author(repository)
                 commits_by_author = Changeset.count(:all, :group => :committer, :conditions => ["repository_id = ?", repository.id])
                 commits_by_author.to_a.sort! {|x, y| x.last <=> y.last}
                 changes_by_author = Change.count(:all, :group => :committer, :include => :changeset, :conditions => ["#{Changeset.table_name}.repository_id = ?", repository.id])
                 h = changes_by_author.inject({}) {|o, i| o[i.first] = i.last; o}
                 fields = commits_by_author.collect {|r| r.first}
                 commits_data = commits_by_author.collect {|r| r.last}
                 changes_data = commits_by_author.collect {|r| h[r.first] || 0}
                 fields = fields + [""]*(10 - fields.length) if fields.length<10
                 commits_data = commits_data + [0]*(10 - commits_data.length) if commits_data.length<10
                 changes_data = changes_data + [0]*(10 - changes_data.length) if changes_data.length<10
                 # Remove email adress in usernames
                 fields = fields.collect {|c| c.gsub(%r{<.+@.+>}, '') }
                 graph = SVG::Graph::BarHorizontal.new(
                   :height => 400,
                   :width => 800,
                   :fields => fields,
                   :stack => :side,
                   :scale_integers => true,
                   :show_data_values => false,
                   :rotate_y_labels => false,
                   :graph_title => l(:label_commits_per_author),
                   :show_graph_title => true
                 )
                 graph.add_data(
                   :data => commits_data,
                   :title => l(:label_revision_plural)
                 )
                 graph.add_data(
                   :data => changes_data,
                   :title => l(:label_change_plural)
                 )
                 graph.burn
               end
             end

lib/redmine/scm/adapters/abstract_adapter.rb 0 -3

             # Redmine - project management software
             # Copyright (C) 2006-2013  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 'cgi'
             if RUBY_VERSION < '1.9'
               require 'iconv'
             end
             module Redmine
               module Scm
                 module Adapters
-                  class CommandFailed < StandardError #:nodoc:
-                  end
                   class AbstractAdapter #:nodoc:
                     # raised if scm command exited with error, e.g. unknown revision.
                     class ScmCommandAborted < CommandFailed; end
                     class << self
                       def client_command
                         ""
                       end
                       def shell_quote_command
                         if Redmine::Platform.mswin? && RUBY_PLATFORM == 'java'
                           client_command
                         else
                           shell_quote(client_command)
                         end
                       end
                       # Returns the version of the scm client
                       # Eg: [1, 5, 0] or [] if unknown
                       def client_version
                         []
                       end
                       # Returns the version string of the scm client
                       # Eg: '1.5.0' or 'Unknown version' if unknown
                       def client_version_string
                         v = client_version || 'Unknown version'
                         v.is_a?(Array) ? v.join('.') : v.to_s
                       end
                       # Returns true if the current client version is above
                       # or equals the given one
                       # If option is :unknown is set to true, it will return
                       # true if the client version is unknown
                       def client_version_above?(v, options={})
                         ((client_version <=> v) >= 0) || (client_version.empty? && options[:unknown])
                       end
                       def client_available
                         true
                       end
                       def shell_quote(str)
                         if Redmine::Platform.mswin?
                           '"' + str.gsub(/"/, '\\"') + '"'
                         else
                           "'" + str.gsub(/'/, "'\"'\"'") + "'"
                         end
                       end
                     end
                     def initialize(url, root_url=nil, login=nil, password=nil,
                                    path_encoding=nil)
                       @url = url
                       @login = login if login && !login.empty?
                       @password = (password || "") if @login
                       @root_url = root_url.blank? ? retrieve_root_url : root_url
                     end
                     def adapter_name
                       'Abstract'
                     end
                     def supports_cat?
                       true
                     end
                     def supports_annotate?
                       respond_to?('annotate')
                     end
                     def root_url
                       @root_url
                     end
                     def url
                       @url
                     end
                     def path_encoding
                       nil
                     end
                     # get info about the svn repository
                     def info
                       return nil
                     end
                     # Returns the entry identified by path and revision identifier
                     # or nil if entry doesn't exist in the repository
                     def entry(path=nil, identifier=nil)
                       parts = path.to_s.split(%r{[\/\\]}).select {|n| !n.blank?}
                       search_path = parts[0..-2].join('/')
                       search_name = parts[-1]
                       if search_path.blank? && search_name.blank?
                         # Root entry
                         Entry.new(:path => '', :kind => 'dir')
                       else
                         # Search for the entry in the parent directory
                         es = entries(search_path, identifier)
                         es ? es.detect {|e| e.name == search_name} : nil
                       end
                     end
                     # Returns an Entries collection
                     # or nil if the given path doesn't exist in the repository
                     def entries(path=nil, identifier=nil, options={})
                       return nil
                     end
                     def branches
                       return nil
                     end
                     def tags
                       return nil
                     end
                     def default_branch
                       return nil
                     end
                     def properties(path, identifier=nil)
                       return nil
                     end
                     def revisions(path=nil, identifier_from=nil, identifier_to=nil, options={})
                       return nil
                     end
                     def diff(path, identifier_from, identifier_to=nil)
                       return nil
                     end
                     def cat(path, identifier=nil)
                       return nil
                     end
                     def with_leading_slash(path)
                       path ||= ''
                       (path[0,1]!="/") ? "/#{path}" : path
                     end
                     def with_trailling_slash(path)
                       path ||= ''
                       (path[-1,1] == "/") ? path : "#{path}/"
                     end
                     def without_leading_slash(path)
                       path ||= ''
                       path.gsub(%r{^/+}, '')
                     end
                     def without_trailling_slash(path)
                       path ||= ''
                       (path[-1,1] == "/") ? path[0..-2] : path
                      end
                     def shell_quote(str)
                       self.class.shell_quote(str)
                     end
                   private
                     def retrieve_root_url
                       info = self.info
                       info ? info.root_url : nil
                     end
                     def target(path, sq=true)
                       path ||= ''
                       base = path.match(/^\//) ? root_url : url
                       str = "#{base}/#{path}".gsub(/[?<>\*]/, '')
                       if sq
                         str = shell_quote(str)
                       end
                       str
                     end
                     def logger
                       self.class.logger
                     end
                     def shellout(cmd, options = {}, &block)
                       self.class.shellout(cmd, options, &block)
                     end
                     def self.logger
                       Rails.logger
                     end
                     # Path to the file where scm stderr output is logged
                     # Returns nil if the log file is not writable
                     def self.stderr_log_file
                       if @stderr_log_file.nil?
                         writable = false
                         path = Redmine::Configuration['scm_stderr_log_file'].presence
                         path ||= Rails.root.join("log/#{Rails.env}.scm.stderr.log").to_s
                         if File.exists?(path)
                           if File.file?(path) && File.writable?(path)
                             writable = true
                           else
                             logger.warn("SCM log file (#{path}) is not writable")
                           end
                         else
                           begin
                             File.open(path, "w") {}
                             writable = true
                           rescue => e
                             logger.warn("SCM log file (#{path}) cannot be created: #{e.message}")
                           end
                         end
                         @stderr_log_file = writable ? path : false
                       end
                       @stderr_log_file || nil
                     end
                     def self.shellout(cmd, options = {}, &block)
                       if logger && logger.debug?
                         logger.debug "Shelling out: #{strip_credential(cmd)}"
                         # Capture stderr in a log file
                         if stderr_log_file
                           cmd = "#{cmd} 2>>#{shell_quote(stderr_log_file)}"
                         end
                       end
                       begin
                         mode = "r+"
                         IO.popen(cmd, mode) do |io|
                           io.set_encoding("ASCII-8BIT") if io.respond_to?(:set_encoding)
                           io.close_write unless options[:write_stdin]
                           block.call(io) if block_given?
                         end
                       ## If scm command does not exist,
                       ## Linux JRuby 1.6.2 (ruby-1.8.7-p330) raises java.io.IOException
                       ## in production environment.
                       # rescue Errno::ENOENT => e
                       rescue Exception => e
                         msg = strip_credential(e.message)
                         # The command failed, log it and re-raise
                         logmsg = "SCM command failed, "
                         logmsg += "make sure that your SCM command (e.g. svn) is "
                         logmsg += "in PATH (#{ENV['PATH']})\n"
                         logmsg += "You can configure your scm commands in config/configuration.yml.\n"
                         logmsg += "#{strip_credential(cmd)}\n"
                         logmsg += "with: #{msg}"
                         logger.error(logmsg)
                         raise CommandFailed.new(msg)
                       end
                     end
                     # Hides username/password in a given command
                     def self.strip_credential(cmd)
                       q = (Redmine::Platform.mswin? ? '"' : "'")
                       cmd.to_s.gsub(/(\-\-(password|username))\s+(#{q}[^#{q}]+#{q}|[^#{q}]\S+)/, '\\1 xxxx')
                     end
                     def strip_credential(cmd)
                       self.class.strip_credential(cmd)
                     end
                     def scm_iconv(to, from, str)
                       return nil if str.nil?
                       return str if to == from
                       if str.respond_to?(:force_encoding)
                         str.force_encoding(from)
                         begin
                           str.encode(to)
                         rescue Exception => err
                           logger.error("failed to convert from #{from} to #{to}. #{err}")
                           nil
                         end
                       else
                         begin
                           Iconv.conv(to, from, str)
                         rescue Iconv::Failure => err
                           logger.error("failed to convert from #{from} to #{to}. #{err}")
                           nil
                         end
                       end
                     end
                     def parse_xml(xml)
                       if RUBY_PLATFORM == 'java'
                         xml = xml.sub(%r{<\?xml[^>]*\?>}, '')
                       end
                       ActiveSupport::XmlMini.parse(xml)
                     end
                   end
                   class Entries < Array
                     def sort_by_name
                       dup.sort! {|x,y|
                         if x.kind == y.kind
                           x.name.to_s <=> y.name.to_s
                         else
                           x.kind <=> y.kind
                         end
                       }
                     end
                     def revisions
                       revisions ||= Revisions.new(collect{|entry| entry.lastrev}.compact)
                     end
                   end
                   class Info
                     attr_accessor :root_url, :lastrev
                     def initialize(attributes={})
                       self.root_url = attributes[:root_url] if attributes[:root_url]
                       self.lastrev = attributes[:lastrev]
                     end
                   end
                   class Entry
                     attr_accessor :name, :path, :kind, :size, :lastrev, :changeset
                     def initialize(attributes={})
                       self.name = attributes[:name] if attributes[:name]
                       self.path = attributes[:path] if attributes[:path]
                       self.kind = attributes[:kind] if attributes[:kind]
                       self.size = attributes[:size].to_i if attributes[:size]
                       self.lastrev = attributes[:lastrev]
                     end
                     def is_file?
                       'file' == self.kind
                     end
                     def is_dir?
                       'dir' == self.kind
                     end
                     def is_text?
                       Redmine::MimeType.is_type?('text', name)
                     end
                     def author
                       if changeset
                         changeset.author.to_s
                       elsif lastrev
                         Redmine::CodesetUtil.replace_invalid_utf8(lastrev.author.to_s.split('<').first)
                       end
                     end
                   end
                   class Revisions < Array
                     def latest
                       sort {|x,y|
                         unless x.time.nil? or y.time.nil?
                           x.time <=> y.time
                         else
                         end
                       }.last
                     end
                   end
                   class Revision
                     attr_accessor :scmid, :name, :author, :time, :message,
                                   :paths, :revision, :branch, :identifier,
                                   :parents
                     def initialize(attributes={})
                       self.identifier = attributes[:identifier]
                       self.scmid      = attributes[:scmid]
                       self.name       = attributes[:name] || self.identifier
                       self.author     = attributes[:author]
                       self.time       = attributes[:time]
                       self.message    = attributes[:message] || ""
                       self.paths      = attributes[:paths]
                       self.revision   = attributes[:revision]
                       self.branch     = attributes[:branch]
                       self.parents    = attributes[:parents]
                     end
                     # Returns the readable identifier.
                     def format_identifier
                       self.identifier.to_s
                     end
                     def ==(other)
                       if other.nil?
                         false
                       elsif scmid.present?
                         scmid == other.scmid
                       elsif identifier.present?
                         identifier == other.identifier
                       elsif revision.present?
                         revision == other.revision
                       end
                     end
                   end
                   class Annotate
                     attr_reader :lines, :revisions
                     def initialize
                       @lines = []
                       @revisions = []
                     end
                     def add_line(line, revision)
                       @lines << line
                       @revisions << revision
                     end
                     def content
                       content = lines.join("\n")
                     end
                     def empty?
                       lines.empty?
                     end
                   end
                   class Branch < String
                     attr_accessor :revision, :scmid
                   end
                 end
               end
             end

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