jro_apps/redmine Commit - r12999:8c945fb7914b

Honnor committers/users mapping in repository statistics (#13487)....

Jean-Baptiste Barth -

r12999:8c945fb7914b

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r12999:8c945fb7914b

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app/models/repository.rb +4 -3

             # Redmine - project management software
             # Copyright (C) 2006-2014  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.
             class ScmFetchError < Exception; end
             class Repository < ActiveRecord::Base
               include Redmine::Ciphering
               include Redmine::SafeAttributes
               # Maximum length for repository identifiers
               IDENTIFIER_MAX_LENGTH = 255
               belongs_to :project
               has_many :changesets, :order => "#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC"
               has_many :filechanges, :class_name => 'Change', :through => :changesets
               serialize :extra_info
               before_save :check_default
               # Raw SQL to delete changesets and changes in the database
               # has_many :changesets, :dependent => :destroy is too slow for big repositories
               before_destroy :clear_changesets
               validates_length_of :password, :maximum => 255, :allow_nil => true
               validates_length_of :identifier, :maximum => IDENTIFIER_MAX_LENGTH, :allow_blank => true
               validates_presence_of :identifier, :unless => Proc.new { |r| r.is_default? || r.set_as_default? }
               validates_uniqueness_of :identifier, :scope => :project_id, :allow_blank => true
               validates_exclusion_of :identifier, :in => %w(browse show entry raw changes annotate diff statistics graph revisions revision)
               # donwcase letters, digits, dashes, underscores but not digits only
               validates_format_of :identifier, :with => /\A(?!\d+$)[a-z0-9\-_]*\z/, :allow_blank => true
               # Checks if the SCM is enabled when creating a repository
               validate :repo_create_validation, :on => :create
               safe_attributes 'identifier',
                 'login',
                 'password',
                 'path_encoding',
                 'log_encoding',
                 'is_default'
               safe_attributes 'url',
                 :if => lambda {|repository, user| repository.new_record?}
               def repo_create_validation
                 unless Setting.enabled_scm.include?(self.class.name.demodulize)
                   errors.add(:type, :invalid)
                 end
               end
               def self.human_attribute_name(attribute_key_name, *args)
                 attr_name = attribute_key_name.to_s
                 if attr_name == "log_encoding"
                   attr_name = "commit_logs_encoding"
                 end
                 super(attr_name, *args)
               end
               # Removes leading and trailing whitespace
               def url=(arg)
                 write_attribute(:url, arg ? arg.to_s.strip : nil)
               end
               # Removes leading and trailing whitespace
               def root_url=(arg)
                 write_attribute(:root_url, arg ? arg.to_s.strip : nil)
               end
               def password
                 read_ciphered_attribute(:password)
               end
               def password=(arg)
                 write_ciphered_attribute(:password, arg)
               end
               def scm_adapter
                 self.class.scm_adapter_class
               end
               def scm
                 unless @scm
                   @scm = self.scm_adapter.new(url, root_url,
                                               login, password, path_encoding)
                   if root_url.blank? && @scm.root_url.present?
                     update_attribute(:root_url, @scm.root_url)
                   end
                 end
                 @scm
               end
               def scm_name
                 self.class.scm_name
               end
               def name
                 if identifier.present?
                   identifier
                 elsif is_default?
                   l(:field_repository_is_default)
                 else
                   scm_name
                 end
               end
               def identifier=(identifier)
                 super unless identifier_frozen?
               end
               def identifier_frozen?
                 errors[:identifier].blank? && !(new_record? || identifier.blank?)
               end
               def identifier_param
                 if is_default?
                   nil
                 elsif identifier.present?
                   identifier
                 else
                   id.to_s
                 end
               end
               def <=>(repository)
                 if is_default?
                   -1
                 elsif repository.is_default?
                 else
                   identifier.to_s <=> repository.identifier.to_s
                 end
               end
               def self.find_by_identifier_param(param)
                 if param.to_s =~ /^\d+$/
                   find_by_id(param)
                 else
                   find_by_identifier(param)
                 end
               end
               # TODO: should return an empty hash instead of nil to avoid many ||{}
               def extra_info
                 h = read_attribute(:extra_info)
                 h.is_a?(Hash) ? h : nil
               end
               def merge_extra_info(arg)
                 h = extra_info || {}
                 return h if arg.nil?
                 h.merge!(arg)
                 write_attribute(:extra_info, h)
               end
               def report_last_commit
                 true
               end
               def supports_cat?
                 scm.supports_cat?
               end
               def supports_annotate?
                 scm.supports_annotate?
               end
               def supports_all_revisions?
                 true
               end
               def supports_directory_revisions?
                 false
               end
               def supports_revision_graph?
                 false
               end
               def entry(path=nil, identifier=nil)
                 scm.entry(path, identifier)
               end
               def scm_entries(path=nil, identifier=nil)
                 scm.entries(path, identifier)
               end
               protected :scm_entries
               def entries(path=nil, identifier=nil)
                 entries = scm_entries(path, identifier)
                 load_entries_changesets(entries)
                 entries
               end
               def branches
                 scm.branches
               end
               def tags
                 scm.tags
               end
               def default_branch
                 nil
               end
               def properties(path, identifier=nil)
                 scm.properties(path, identifier)
               end
               def cat(path, identifier=nil)
                 scm.cat(path, identifier)
               end
               def diff(path, rev, rev_to)
                 scm.diff(path, rev, rev_to)
               end
               def diff_format_revisions(cs, cs_to, sep=':')
                 text = ""
                 text << cs_to.format_identifier + sep if cs_to
                 text << cs.format_identifier if cs
                 text
               end
               # Returns a path relative to the url of the repository
               def relative_path(path)
                 path
               end
               # Finds and returns a revision with a number or the beginning of a hash
               def find_changeset_by_name(name)
                 return nil if name.blank?
                 s = name.to_s
                 if s.match(/^\d*$/)
                   changesets.where("revision = ?", s).first
                 else
                   changesets.where("revision LIKE ?", s + '%').first
                 end
               end
               def latest_changeset
                 @latest_changeset ||= changesets.first
               end
               # Returns the latest changesets for +path+
               # Default behaviour is to search in cached changesets
               def latest_changesets(path, rev, limit=10)
                 if path.blank?
                   changesets.
                     reorder("#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC").
                     limit(limit).
                     preload(:user).
                     all
                 else
                   filechanges.
                     where("path = ?", path.with_leading_slash).
                     reorder("#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC").
                     limit(limit).
                     preload(:changeset => :user).
                     collect(&:changeset)
                 end
               end
               def scan_changesets_for_issue_ids
                 self.changesets.each(&:scan_comment_for_issue_ids)
               end
               # Returns an array of committers usernames and associated user_id
               def committers
                 @committers ||= Changeset.connection.select_rows(
                      "SELECT DISTINCT committer, user_id FROM #{Changeset.table_name} WHERE repository_id = #{id}")
               end
               # Maps committers username to a user ids
               def committer_ids=(h)
                 if h.is_a?(Hash)
                   committers.each do |committer, user_id|
                     new_user_id = h[committer]
                     if new_user_id && (new_user_id.to_i != user_id.to_i)
                       new_user_id = (new_user_id.to_i > 0 ? new_user_id.to_i : nil)
                       Changeset.where(["repository_id = ? AND committer = ?", id, committer]).
                         update_all("user_id = #{new_user_id.nil? ? 'NULL' : new_user_id}")
                     end
                   end
                   @committers            = nil
                   @found_committer_users = nil
                   true
                 else
                   false
                 end
               end
               # Returns the Redmine User corresponding to the given +committer+
               # It will return nil if the committer is not yet mapped and if no User
               # with the same username or email was found
               def find_committer_user(committer)
                 unless committer.blank?
                   @found_committer_users ||= {}
                   return @found_committer_users[committer] if @found_committer_users.has_key?(committer)
                   user = nil
                   c = changesets.where(:committer => committer).includes(:user).first
                   if c && c.user
                     user = c.user
                   elsif committer.strip =~ /^([^<]+)(<(.*)>)?$/
                     username, email = $1.strip, $3
                     u = User.find_by_login(username)
                     u ||= User.find_by_mail(email) unless email.blank?
                     user = u
                   end
                   @found_committer_users[committer] = user
                   user
                 end
               end
               def repo_log_encoding
                 encoding = log_encoding.to_s.strip
                 encoding.blank? ? 'UTF-8' : encoding
               end
               # Fetches new changesets for all repositories of active projects
               # Can be called periodically by an external script
               # eg. ruby script/runner "Repository.fetch_changesets"
               def self.fetch_changesets
                 Project.active.has_module(:repository).all.each do |project|
                   project.repositories.each do |repository|
                     begin
                       repository.fetch_changesets
                     rescue Redmine::Scm::Adapters::CommandFailed => e
                       logger.error "scm: error during fetching changesets: #{e.message}"
                     end
                   end
                 end
               end
               # scan changeset comments to find related and fixed issues for all repositories
               def self.scan_changesets_for_issue_ids
                 all.each(&:scan_changesets_for_issue_ids)
               end
               def self.scm_name
                 'Abstract'
               end
               def self.available_scm
                 subclasses.collect {|klass| [klass.scm_name, klass.name]}
               end
               def self.factory(klass_name, *args)
                 klass = "Repository::#{klass_name}".constantize
                 klass.new(*args)
               rescue
                 nil
               end
               def self.scm_adapter_class
                 nil
               end
               def self.scm_command
                 ret = ""
                 begin
                   ret = self.scm_adapter_class.client_command if self.scm_adapter_class
                 rescue Exception => e
                   logger.error "scm: error during get command: #{e.message}"
                 end
                 ret
               end
               def self.scm_version_string
                 ret = ""
                 begin
                   ret = self.scm_adapter_class.client_version_string if self.scm_adapter_class
                 rescue Exception => e
                   logger.error "scm: error during get version string: #{e.message}"
                 end
                 ret
               end
               def self.scm_available
                 ret = false
                 begin
                   ret = self.scm_adapter_class.client_available if self.scm_adapter_class
                 rescue Exception => e
                   logger.error "scm: error during get scm available: #{e.message}"
                 end
                 ret
               end
               def set_as_default?
                 new_record? && project && Repository.where(:project_id => project.id).empty?
               end
               # Returns a hash with statistics by author in the following form:
               # {
               #   "John Smith" => { :commits => 45, :changes => 324 },
               #   "Bob" => { ... }
               # }
               #
               # Notes:
               # - this hash honnors the users mapping defined for the repository
               def stats_by_author
                 commits_by_author = Changeset.where("repository_id = ?", id).group(:committer).count
                 commits_by_author.to_a.sort! {|x, y| x.last <=> y.last}
                 changes_by_author = Change.joins(:changeset).where("#{Changeset.table_name}.repository_id = ?", id).group(:committer).count
                 h = changes_by_author.inject({}) {|o, i| o[i.first] = i.last; o}
                 commits_by_author.inject({}) do |hash, (name, commits_count)|
-                  hash[name] = {}
+                  mapped_name = (find_committer_user(name) || name).to_s
-                  hash[name][:commits_count] = commits_count
+                  hash[mapped_name] ||= { :commits_count => 0, :changes_count => 0 }
-                  hash[name][:changes_count] = h[name] || 0
+                  hash[mapped_name][:commits_count] += commits_count
+                  hash[mapped_name][:changes_count] += h[name] || 0
                   hash
                 end
               end
               protected
               def check_default
                 if !is_default? && set_as_default?
                   self.is_default = true
                 end
                 if is_default? && is_default_changed?
                   Repository.where(["project_id = ?", project_id]).update_all(["is_default = ?", false])
                 end
               end
               def load_entries_changesets(entries)
                 if entries
                   entries.each do |entry|
                     if entry.lastrev && entry.lastrev.identifier
                       entry.changeset = find_changeset_by_name(entry.lastrev.identifier)
                     end
                   end
                 end
               end
               private
               # Deletes repository data
               def clear_changesets
                 cs = Changeset.table_name
                 ch = Change.table_name
                 ci = "#{table_name_prefix}changesets_issues#{table_name_suffix}"
                 cp = "#{table_name_prefix}changeset_parents#{table_name_suffix}"
                 connection.delete("DELETE FROM #{ch} WHERE #{ch}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
                 connection.delete("DELETE FROM #{ci} WHERE #{ci}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
                 connection.delete("DELETE FROM #{cp} WHERE #{cp}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
                 connection.delete("DELETE FROM #{cs} WHERE #{cs}.repository_id = #{id}")
                 clear_extra_info_of_changesets
               end
               def clear_extra_info_of_changesets
               end
             end

test/unit/repository_test.rb +48 -2

             # Redmine - project management software
             # Copyright (C) 2006-2014  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 File.expand_path('../../test_helper', __FILE__)
             class RepositoryTest < ActiveSupport::TestCase
               fixtures :projects,
                        :trackers,
                        :projects_trackers,
                        :enabled_modules,
                        :repositories,
                        :issues,
                        :issue_statuses,
                        :issue_categories,
                        :changesets,
                        :changes,
                        :users,
                        :members,
                        :member_roles,
                        :roles,
                        :enumerations
               include Redmine::I18n
               def setup
                 @repository = Project.find(1).repository
               end
               def test_blank_log_encoding_error_message
                 set_language_if_valid 'en'
                 repo = Repository::Bazaar.new(
                                     :project      => Project.find(3),
                                     :url          => "/test",
                                     :log_encoding => ''
                                   )
                 assert !repo.save
                 assert_include "Commit messages encoding can't be blank",
                                repo.errors.full_messages
               end
               def test_blank_log_encoding_error_message_fr
                 set_language_if_valid 'fr'
                 str = "Encodage des messages de commit doit \xc3\xaatre renseign\xc3\xa9(e)"
                 str.force_encoding('UTF-8') if str.respond_to?(:force_encoding)
                 repo = Repository::Bazaar.new(
                                     :project      => Project.find(3),
                                     :url          => "/test"
                                   )
                 assert !repo.save
                 assert_include str, repo.errors.full_messages
               end
               def test_create
                 repository = Repository::Subversion.new(:project => Project.find(3))
                 assert !repository.save
                 repository.url = "svn://localhost"
                 assert repository.save
                 repository.reload
                 project = Project.find(3)
                 assert_equal repository, project.repository
               end
               def test_first_repository_should_be_set_as_default
                 repository1 = Repository::Subversion.new(
                                   :project => Project.find(3),
                                   :identifier => 'svn1',
                                   :url => 'file:///svn1'
                                 )
                 assert repository1.save
                 assert repository1.is_default?
                 repository2 = Repository::Subversion.new(
                                   :project => Project.find(3),
                                   :identifier => 'svn2',
                                   :url => 'file:///svn2'
                                 )
                 assert repository2.save
                 assert !repository2.is_default?
                 assert_equal repository1, Project.find(3).repository
                 assert_equal [repository1, repository2], Project.find(3).repositories.sort
               end
               def test_default_repository_should_be_one
                 assert_equal 0, Project.find(3).repositories.count
                 repository1 = Repository::Subversion.new(
                                   :project => Project.find(3),
                                   :identifier => 'svn1',
                                   :url => 'file:///svn1'
                                 )
                 assert repository1.save
                 assert repository1.is_default?
                 repository2 = Repository::Subversion.new(
                                   :project => Project.find(3),
                                   :identifier => 'svn2',
                                   :url => 'file:///svn2',
                                   :is_default => true
                                 )
                 assert repository2.save
                 assert repository2.is_default?
                 repository1.reload
                 assert !repository1.is_default?
                 assert_equal repository2, Project.find(3).repository
                 assert_equal [repository2, repository1], Project.find(3).repositories.sort
               end
               def test_identifier_should_accept_letters_digits_dashes_and_underscores
                 r = Repository::Subversion.new(
                   :project_id => 3,
                   :identifier => 'svn-123_45',
                   :url => 'file:///svn'
                 )
                 assert r.save
               end
               def test_identifier_should_not_be_frozen_for_a_new_repository
                 assert_equal false, Repository.new.identifier_frozen?
               end
               def test_identifier_should_not_be_frozen_for_a_saved_repository_with_blank_identifier
                 Repository.where(:id => 10).update_all(["identifier = ''"])
                 assert_equal false, Repository.find(10).identifier_frozen?
               end
               def test_identifier_should_be_frozen_for_a_saved_repository_with_valid_identifier
                 Repository.where(:id => 10).update_all(["identifier = 'abc123'"])
                 assert_equal true, Repository.find(10).identifier_frozen?
               end
               def test_identifier_should_not_accept_change_if_frozen
                 r = Repository.new(:identifier => 'foo')
                 r.stubs(:identifier_frozen?).returns(true)
                 r.identifier = 'bar'
                 assert_equal 'foo', r.identifier
               end
               def test_identifier_should_accept_change_if_not_frozen
                 r = Repository.new(:identifier => 'foo')
                 r.stubs(:identifier_frozen?).returns(false)
                 r.identifier = 'bar'
                 assert_equal 'bar', r.identifier
               end
               def test_destroy
                 repository = Repository.find(10)
                 changesets = repository.changesets.count
                 changes = repository.filechanges.count
                 assert_difference 'Changeset.count', -changesets do
                   assert_difference 'Change.count', -changes do
                     Repository.find(10).destroy
                   end
                 end
               end
               def test_destroy_should_delete_parents_associations
                 changeset = Changeset.find(102)
                 changeset.parents = Changeset.where(:id => [100, 101]).all
                 assert_difference 'Changeset.connection.select_all("select * from changeset_parents").count', -2 do
                   Repository.find(10).destroy
                 end
               end
               def test_destroy_should_delete_issues_associations
                 changeset = Changeset.find(102)
                 changeset.issues = Issue.where(:id => [1, 2]).all
                 assert_difference 'Changeset.connection.select_all("select * from changesets_issues").count', -2 do
                   Repository.find(10).destroy
                 end
               end
               def test_should_not_create_with_disabled_scm
                 # disable Subversion
                 with_settings :enabled_scm => ['Darcs', 'Git'] do
                   repository = Repository::Subversion.new(
                                   :project => Project.find(3), :url => "svn://localhost")
                   assert !repository.save
                   assert_include I18n.translate('activerecord.errors.messages.invalid'),
                                  repository.errors[:type]
                 end
               end
               def test_scan_changesets_for_issue_ids
                 Setting.default_language = 'en'
                 Setting.commit_ref_keywords = 'refs , references, IssueID'
                 Setting.commit_update_keywords = [
                   {'keywords' => 'fixes , closes',
                    'status_id' => IssueStatus.where(:is_closed => true).first.id,
                    'done_ratio' => '90'}
                 ]
                 Setting.default_language = 'en'
                 ActionMailer::Base.deliveries.clear
                 # make sure issue 1 is not already closed
                 fixed_issue = Issue.find(1)
                 assert !fixed_issue.status.is_closed?
                 old_status = fixed_issue.status
                 with_settings :notified_events => %w(issue_added issue_updated) do
                   Repository.scan_changesets_for_issue_ids
                 end
                 assert_equal [101, 102], Issue.find(3).changeset_ids
                 # fixed issues
                 fixed_issue.reload
                 assert fixed_issue.status.is_closed?
                 assert_equal 90, fixed_issue.done_ratio
                 assert_equal [101], fixed_issue.changeset_ids
                 # issue change
                 journal = fixed_issue.journals.reorder('created_on desc').first
                 assert_equal User.find_by_login('dlopper'), journal.user
                 assert_equal 'Applied in changeset r2.', journal.notes
                 # 2 email notifications
                 assert_equal 2, ActionMailer::Base.deliveries.size
                 mail = ActionMailer::Base.deliveries.first
                 assert_not_nil mail
                 assert mail.subject.starts_with?(
                     "[#{fixed_issue.project.name} - #{fixed_issue.tracker.name} ##{fixed_issue.id}]")
                 assert_mail_body_match(
                     "Status changed from #{old_status} to #{fixed_issue.status}", mail)
                 # ignoring commits referencing an issue of another project
                 assert_equal [], Issue.find(4).changesets
               end
               def test_for_changeset_comments_strip
                 repository = Repository::Mercurial.create(
                                 :project => Project.find( 4 ),
                                 :url => '/foo/bar/baz' )
                 comment = <<-COMMENT
                 This is a loooooooooooooooooooooooooooong comment
                 COMMENT
                 changeset = Changeset.new(
                   :comments => comment, :commit_date => Time.now,
                   :revision => 0, :scmid => 'f39b7922fb3c',
                   :committer => 'foo <foo@example.com>',
                   :committed_on => Time.now, :repository => repository )
                 assert( changeset.save )
                 assert_not_equal( comment, changeset.comments )
                 assert_equal( 'This is a loooooooooooooooooooooooooooong comment',
                               changeset.comments )
               end
               def test_for_urls_strip_cvs
                 repository = Repository::Cvs.create(
                     :project => Project.find(4),
                     :url => ' :pserver:login:password@host:/path/to/the/repository',
                     :root_url => 'foo  ',
                     :log_encoding => 'UTF-8')
                 assert repository.save
                 repository.reload
                 assert_equal ':pserver:login:password@host:/path/to/the/repository',
                               repository.url
                 assert_equal 'foo', repository.root_url
               end
               def test_for_urls_strip_subversion
                 repository = Repository::Subversion.create(
                     :project => Project.find(4),
                     :url => ' file:///dummy   ')
                 assert repository.save
                 repository.reload
                 assert_equal 'file:///dummy', repository.url
               end
               def test_for_urls_strip_git
                 repository = Repository::Git.create(
                     :project => Project.find(4),
                     :url => ' c:\dummy   ')
                 assert repository.save
                 repository.reload
                 assert_equal 'c:\dummy', repository.url
               end
               def test_manual_user_mapping
                 assert_no_difference "Changeset.where('user_id <> 2').count" do
                   c = Changeset.create!(
                           :repository => @repository,
                           :committer => 'foo',
                           :committed_on => Time.now,
                           :revision => 100,
                           :comments => 'Committed by foo.'
                         )
                   assert_nil c.user
                   @repository.committer_ids = {'foo' => '2'}
                   assert_equal User.find(2), c.reload.user
                   # committer is now mapped
                   c = Changeset.create!(
                           :repository => @repository,
                           :committer => 'foo',
                           :committed_on => Time.now,
                           :revision => 101,
                           :comments => 'Another commit by foo.'
                         )
                   assert_equal User.find(2), c.user
                 end
               end
               def test_auto_user_mapping_by_username
                 c = Changeset.create!(
                       :repository   => @repository,
                       :committer    => 'jsmith',
                       :committed_on => Time.now,
                       :revision     => 100,
                       :comments     => 'Committed by john.'
                     )
                 assert_equal User.find(2), c.user
               end
               def test_auto_user_mapping_by_email
                 c = Changeset.create!(
                       :repository   => @repository,
                       :committer    => 'john <jsmith@somenet.foo>',
                       :committed_on => Time.now,
                       :revision     => 100,
                       :comments     => 'Committed by john.'
                     )
                 assert_equal User.find(2), c.user
               end
               def test_filesystem_avaialbe
                 klass = Repository::Filesystem
                 assert klass.scm_adapter_class
                 assert_equal true, klass.scm_available
               end
               def test_extra_info_should_not_return_non_hash_value
                 repo = Repository.new
                 repo.extra_info = "foo"
                 assert_nil repo.extra_info
               end
               def test_merge_extra_info
                 repo = Repository::Subversion.new(:project => Project.find(3))
                 assert !repo.save
                 repo.url = "svn://localhost"
                 assert repo.save
                 repo.reload
                 project = Project.find(3)
                 assert_equal repo, project.repository
                 assert_nil repo.extra_info
                 h1 = {"test_1" => {"test_11" => "test_value_11"}}
                 repo.merge_extra_info(h1)
                 assert_equal h1, repo.extra_info
                 h2 = {"test_2" => {
                                "test_21" => "test_value_21",
                                "test_22" => "test_value_22",
                               }}
                 repo.merge_extra_info(h2)
                 assert_equal (h = {"test_11" => "test_value_11"}),
                              repo.extra_info["test_1"]
                 assert_equal "test_value_21",
                              repo.extra_info["test_2"]["test_21"]
                 h3 = {"test_2" => {
                                "test_23" => "test_value_23",
                                "test_24" => "test_value_24",
                               }}
                 repo.merge_extra_info(h3)
                 assert_equal (h = {"test_11" => "test_value_11"}),
                              repo.extra_info["test_1"]
                 assert_nil repo.extra_info["test_2"]["test_21"]
                 assert_equal "test_value_23",
                              repo.extra_info["test_2"]["test_23"]
               end
               def test_sort_should_not_raise_an_error_with_nil_identifiers
                 r1 = Repository.new
                 r2 = Repository.new
                 assert_nothing_raised do
                   [r1, r2].sort
                 end
               end
               def test_stats_by_author_reflect_changesets_and_changes
                 repository = Repository.find(10)
-                expected = {"dlopper"=>{:commits_count=>10, :changes_count=>3}}
+                expected = {"Dave Lopper"=>{:commits_count=>10, :changes_count=>3}}
                 assert_equal expected, repository.stats_by_author
                 set = Changeset.create!(
                   :repository => repository,
                   :committer => 'dlopper',
                   :committed_on => Time.now,
                   :revision => 101,
                   :comments => 'Another commit by foo.'
                 )
                 Change.create!(:changeset => set, :action => 'A', :path => '/path/to/file1')
                 Change.create!(:changeset => set, :action => 'A', :path => '/path/to/file2')
-                expected = {"dlopper"=>{:commits_count=>11, :changes_count=>5}}
+                expected = {"Dave Lopper"=>{:commits_count=>11, :changes_count=>5}}
+                assert_equal expected, repository.stats_by_author
+              end
+              def test_stats_by_author_honnor_committers
+                # in fact it is really tested above, but let's have a dedicated test
+                # to ensure things are dynamically linked to Users
+                User.find_by_login("dlopper").update_attribute(:firstname, "Dave's")
+                repository = Repository.find(10)
+                expected = {"Dave's Lopper"=>{:commits_count=>10, :changes_count=>3}}
+                assert_equal expected, repository.stats_by_author
+              end
+              def test_stats_by_author_doesnt_drop_unmapped_users
+                repository = Repository.find(10)
+                Changeset.create!(
+                  :repository => repository,
+                  :committer => 'unnamed <foo@bar.net>',
+                  :committed_on => Time.now,
+                  :revision => 101,
+                  :comments => 'Another commit by foo.'
+                )
+                assert repository.stats_by_author.has_key?("unnamed <foo@bar.net>")
+              end
+              def test_stats_by_author_merge_correctly
+                # as we honnor users->committer map and it's not injective,
+                # we must be sure merges happen correctly and stats are not
+                # wiped out when two source counts map to the same user.
+                #
+                # Here we have Changeset's with committer="dlopper" and others
+                # with committer="dlopper <dlopper@somefoo.net>"
+                repository = Repository.find(10)
+                expected = {"Dave Lopper"=>{:commits_count=>10, :changes_count=>3}}
+                assert_equal expected, repository.stats_by_author
+                set = Changeset.create!(
+                  :repository => repository,
+                  :committer => 'dlopper <dlopper@somefoo.net>',
+                  :committed_on => Time.now,
+                  :revision => 101,
+                  :comments => 'Another commit by foo.'
+                )
+                expected = {"Dave Lopper"=>{:commits_count=>11, :changes_count=>3}}
                 assert_equal expected, repository.stats_by_author
               end
             end

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