Mercurial > hg > soundsoftware-site
diff .svn/pristine/a7/a71b998ee631f5527b99e3a0df2d62bbccac91fe.svn-base @ 1295:622f24f53b42 redmine-2.3
Update to Redmine SVN revision 11972 on 2.3-stable branch
author | Chris Cannam |
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date | Fri, 14 Jun 2013 09:02:21 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.svn/pristine/a7/a71b998ee631f5527b99e3a0df2d62bbccac91fe.svn-base Fri Jun 14 09:02:21 2013 +0100 @@ -0,0 +1,269 @@ +# Redmine - project management software +# Copyright (C) 2006-2012 Jean-Philippe Lang +# Copyright (C) 2007 Patrick Aljord patcito@ŋmail.com +# +# 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 'redmine/scm/adapters/git_adapter' + +class Repository::Git < Repository + attr_protected :root_url + validates_presence_of :url + + def self.human_attribute_name(attribute_key_name, *args) + attr_name = attribute_key_name.to_s + if attr_name == "url" + attr_name = "path_to_repository" + end + super(attr_name, *args) + end + + def self.scm_adapter_class + Redmine::Scm::Adapters::GitAdapter + end + + def self.scm_name + 'Git' + end + + def report_last_commit + extra_report_last_commit + end + + def extra_report_last_commit + return false if extra_info.nil? + v = extra_info["extra_report_last_commit"] + return false if v.nil? + v.to_s != '0' + end + + def supports_directory_revisions? + true + end + + def supports_revision_graph? + true + end + + def repo_log_encoding + 'UTF-8' + end + + # Returns the identifier for the given git changeset + def self.changeset_identifier(changeset) + changeset.scmid + end + + # Returns the readable identifier for the given git changeset + def self.format_changeset_identifier(changeset) + changeset.revision[0, 8] + end + + def branches + scm.branches + end + + def tags + scm.tags + end + + def default_branch + scm.default_branch + rescue Exception => e + logger.error "git: error during get default branch: #{e.message}" + nil + end + + def find_changeset_by_name(name) + if name.present? + changesets.where(:revision => name.to_s).first || + changesets.where('scmid LIKE ?', "#{name}%").first + end + end + + def entries(path=nil, identifier=nil) + entries = scm.entries(path, identifier, :report_last_commit => extra_report_last_commit) + load_entries_changesets(entries) + entries + end + + # With SCMs that have a sequential commit numbering, + # such as Subversion and Mercurial, + # Redmine is able to be clever and only fetch changesets + # going forward from the most recent one it knows about. + # + # However, Git does not have a sequential commit numbering. + # + # In order to fetch only new adding revisions, + # Redmine needs to save "heads". + # + # In Git and Mercurial, revisions are not in date order. + # Redmine Mercurial fixed issues. + # * Redmine Takes Too Long On Large Mercurial Repository + # http://www.redmine.org/issues/3449 + # * Sorting for changesets might go wrong on Mercurial repos + # http://www.redmine.org/issues/3567 + # + # Database revision column is text, so Redmine can not sort by revision. + # Mercurial has revision number, and revision number guarantees revision order. + # Redmine Mercurial model stored revisions ordered by database id to database. + # So, Redmine Mercurial model can use correct ordering revisions. + # + # Redmine Mercurial adapter uses "hg log -r 0:tip --limit 10" + # to get limited revisions from old to new. + # But, Git 1.7.3.4 does not support --reverse with -n or --skip. + # + # The repository can still be fully reloaded by calling #clear_changesets + # before fetching changesets (eg. for offline resync) + def fetch_changesets + scm_brs = branches + return if scm_brs.nil? || scm_brs.empty? + + h1 = extra_info || {} + h = h1.dup + repo_heads = scm_brs.map{ |br| br.scmid } + h["heads"] ||= [] + prev_db_heads = h["heads"].dup + if prev_db_heads.empty? + prev_db_heads += heads_from_branches_hash + end + return if prev_db_heads.sort == repo_heads.sort + + h["db_consistent"] ||= {} + if changesets.count == 0 + h["db_consistent"]["ordering"] = 1 + merge_extra_info(h) + self.save + elsif ! h["db_consistent"].has_key?("ordering") + h["db_consistent"]["ordering"] = 0 + merge_extra_info(h) + self.save + end + save_revisions(prev_db_heads, repo_heads) + end + + def save_revisions(prev_db_heads, repo_heads) + h = {} + opts = {} + opts[:reverse] = true + opts[:excludes] = prev_db_heads + opts[:includes] = repo_heads + + revisions = scm.revisions('', nil, nil, opts) + return if revisions.blank? + + # Make the search for existing revisions in the database in a more sufficient manner + # + # Git branch is the reference to the specific revision. + # Git can *delete* remote branch and *re-push* branch. + # + # $ git push remote :branch + # $ git push remote branch + # + # After deleting branch, revisions remain in repository until "git gc". + # On git 1.7.2.3, default pruning date is 2 weeks. + # So, "git log --not deleted_branch_head_revision" return code is 0. + # + # After re-pushing branch, "git log" returns revisions which are saved in database. + # So, Redmine needs to scan revisions and database every time. + # + # This is replacing the one-after-one queries. + # Find all revisions, that are in the database, and then remove them from the revision array. + # Then later we won't need any conditions for db existence. + # Query for several revisions at once, and remove them from the revisions array, if they are there. + # Do this in chunks, to avoid eventual memory problems (in case of tens of thousands of commits). + # If there are no revisions (because the original code's algorithm filtered them), + # then this part will be stepped over. + # We make queries, just if there is any revision. + limit = 100 + offset = 0 + revisions_copy = revisions.clone # revisions will change + while offset < revisions_copy.size + recent_changesets_slice = changesets.find( + :all, + :conditions => [ + 'scmid IN (?)', + revisions_copy.slice(offset, limit).map{|x| x.scmid} + ] + ) + # Subtract revisions that redmine already knows about + recent_revisions = recent_changesets_slice.map{|c| c.scmid} + revisions.reject!{|r| recent_revisions.include?(r.scmid)} + offset += limit + end + + revisions.each do |rev| + transaction do + # There is no search in the db for this revision, because above we ensured, + # that it's not in the db. + save_revision(rev) + end + end + h["heads"] = repo_heads.dup + merge_extra_info(h) + self.save + end + private :save_revisions + + def save_revision(rev) + parents = (rev.parents || []).collect{|rp| find_changeset_by_name(rp)}.compact + changeset = Changeset.create( + :repository => self, + :revision => rev.identifier, + :scmid => rev.scmid, + :committer => rev.author, + :committed_on => rev.time, + :comments => rev.message, + :parents => parents + ) + unless changeset.new_record? + rev.paths.each { |change| changeset.create_change(change) } + end + changeset + end + private :save_revision + + def heads_from_branches_hash + h1 = extra_info || {} + h = h1.dup + h["branches"] ||= {} + h['branches'].map{|br, hs| hs['last_scmid']} + end + + def latest_changesets(path,rev,limit=10) + revisions = scm.revisions(path, nil, rev, :limit => limit, :all => false) + return [] if revisions.nil? || revisions.empty? + + changesets.find( + :all, + :conditions => [ + "scmid IN (?)", + revisions.map!{|c| c.scmid} + ], + :order => 'committed_on DESC' + ) + end + + def clear_extra_info_of_changesets + return if extra_info.nil? + v = extra_info["extra_report_last_commit"] + write_attribute(:extra_info, nil) + h = {} + h["extra_report_last_commit"] = v + merge_extra_info(h) + self.save + end + private :clear_extra_info_of_changesets +end