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275 lines
8.5 KiB
275 lines
8.5 KiB
# Redmine - project management software
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# Copyright (C) 2006-2013 Jean-Philippe Lang
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# Copyright (C) 2007 Patrick Aljord patcito@ŋmail.com
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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require 'redmine/scm/adapters/git_adapter'
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class Repository::Git < Repository
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attr_protected :root_url
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validates_presence_of :url
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def self.human_attribute_name(attribute_key_name, *args)
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attr_name = attribute_key_name.to_s
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if attr_name == "url"
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attr_name = "path_to_repository"
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end
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super(attr_name, *args)
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end
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def self.scm_adapter_class
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Redmine::Scm::Adapters::GitAdapter
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end
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def self.scm_name
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'Git'
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end
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def commits(authors, start_date, end_date, branch='master')
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scm.commits(authors, start_date, end_date,branch).map {|commit|
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[commit[:author], commit[:num]]
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}
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end
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def report_last_commit
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extra_report_last_commit
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end
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def extra_report_last_commit
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return false if extra_info.nil?
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v = extra_info["extra_report_last_commit"]
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return false if v.nil?
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v.to_s != '0'
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end
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def supports_directory_revisions?
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true
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end
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def supports_revision_graph?
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true
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end
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def repo_log_encoding
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'UTF-8'
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end
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# Returns the identifier for the given git changeset
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def self.changeset_identifier(changeset)
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changeset.scmid
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end
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# Returns the readable identifier for the given git changeset
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def self.format_changeset_identifier(changeset)
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changeset.revision[0, 8]
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end
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def branches
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scm.branches
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end
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def tags
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scm.tags
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end
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def default_branch
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scm.default_branch
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rescue Exception => e
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logger.error "git: error during get default branch: #{e.message}"
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nil
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end
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def find_changeset_by_name(name)
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if name.present?
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changesets.where(:revision => name.to_s).first ||
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changesets.where('scmid LIKE ?', "#{name}%").first
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end
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end
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def entries(path=nil, identifier=nil)
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entries = scm.entries(path, identifier, :report_last_commit => extra_report_last_commit)
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load_entries_changesets(entries)
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entries
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end
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# With SCMs that have a sequential commit numbering,
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# such as Subversion and Mercurial,
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# Redmine is able to be clever and only fetch changesets
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# going forward from the most recent one it knows about.
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#
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# However, Git does not have a sequential commit numbering.
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#
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# In order to fetch only new adding revisions,
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# Redmine needs to save "heads".
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#
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# In Git and Mercurial, revisions are not in date order.
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# Redmine Mercurial fixed issues.
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# * Redmine Takes Too Long On Large Mercurial Repository
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# http://www.redmine.org/issues/3449
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# * Sorting for changesets might go wrong on Mercurial repos
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# http://www.redmine.org/issues/3567
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#
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# Database revision column is text, so Redmine can not sort by revision.
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# Mercurial has revision number, and revision number guarantees revision order.
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# Redmine Mercurial model stored revisions ordered by database id to database.
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# So, Redmine Mercurial model can use correct ordering revisions.
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#
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# Redmine Mercurial adapter uses "hg log -r 0:tip --limit 10"
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# to get limited revisions from old to new.
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# But, Git 1.7.3.4 does not support --reverse with -n or --skip.
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#
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# The repository can still be fully reloaded by calling #clear_changesets
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# before fetching changesets (eg. for offline resync)
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def fetch_changesets
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scm_brs = branches
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return if scm_brs.nil? || scm_brs.empty?
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h1 = extra_info || {}
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h = h1.dup
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repo_heads = scm_brs.map{ |br| br.scmid }
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h["heads"] ||= []
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prev_db_heads = h["heads"].dup
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if prev_db_heads.empty?
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prev_db_heads += heads_from_branches_hash
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end
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return if prev_db_heads.sort == repo_heads.sort
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h["db_consistent"] ||= {}
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if changesets.count == 0
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h["db_consistent"]["ordering"] = 1
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merge_extra_info(h)
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self.save
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elsif ! h["db_consistent"].has_key?("ordering")
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h["db_consistent"]["ordering"] = 0
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merge_extra_info(h)
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self.save
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end
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save_revisions(prev_db_heads, repo_heads)
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end
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def save_revisions(prev_db_heads, repo_heads)
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h = {}
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opts = {}
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opts[:reverse] = true
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opts[:excludes] = prev_db_heads
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opts[:includes] = repo_heads
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revisions = scm.revisions('', nil, nil, opts)
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return if revisions.blank?
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# Make the search for existing revisions in the database in a more sufficient manner
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#
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# Git branch is the reference to the specific revision.
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# Git can *delete* remote branch and *re-push* branch.
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#
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# $ git push remote :branch
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# $ git push remote branch
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#
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# After deleting branch, revisions remain in repository until "git gc".
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# On git 1.7.2.3, default pruning date is 2 weeks.
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# So, "git log --not deleted_branch_head_revision" return code is 0.
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#
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# After re-pushing branch, "git log" returns revisions which are saved in database.
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# So, Redmine needs to scan revisions and database every time.
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#
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# This is replacing the one-after-one queries.
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# Find all revisions, that are in the database, and then remove them from the revision array.
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# Then later we won't need any conditions for db existence.
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# Query for several revisions at once, and remove them from the revisions array, if they are there.
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# Do this in chunks, to avoid eventual memory problems (in case of tens of thousands of commits).
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# If there are no revisions (because the original code's algorithm filtered them),
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# then this part will be stepped over.
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# We make queries, just if there is any revision.
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limit = 100
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offset = 0
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revisions_copy = revisions.clone # revisions will change
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while offset < revisions_copy.size
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recent_changesets_slice = changesets.find(
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:all,
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:conditions => [
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'scmid IN (?)',
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revisions_copy.slice(offset, limit).map{|x| x.scmid}
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]
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)
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# Subtract revisions that redmine already knows about
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recent_revisions = recent_changesets_slice.map{|c| c.scmid}
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revisions.reject!{|r| recent_revisions.include?(r.scmid)}
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offset += limit
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end
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revisions.each do |rev|
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transaction do
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# There is no search in the db for this revision, because above we ensured,
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# that it's not in the db.
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save_revision(rev)
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end
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end
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h["heads"] = repo_heads.dup
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merge_extra_info(h)
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self.save
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end
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private :save_revisions
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def save_revision(rev)
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parents = (rev.parents || []).collect{|rp| find_changeset_by_name(rp)}.compact
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changeset = Changeset.create(
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:repository => self,
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:revision => rev.identifier,
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:scmid => rev.scmid,
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:committer => rev.author,
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:committed_on => rev.time,
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:comments => rev.message,
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:parents => parents
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)
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unless changeset.new_record?
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rev.paths.each { |change| changeset.create_change(change) }
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end
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changeset
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end
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private :save_revision
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def heads_from_branches_hash
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h1 = extra_info || {}
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h = h1.dup
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h["branches"] ||= {}
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h['branches'].map{|br, hs| hs['last_scmid']}
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end
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def latest_changesets(path,rev,limit=10)
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revisions = scm.revisions(path, nil, rev, :limit => limit, :all => false)
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return [] if revisions.nil? || revisions.empty?
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changesets.find(
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:all,
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:conditions => [
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"scmid IN (?)",
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revisions.map!{|c| c.scmid}
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]
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)
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end
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def clear_extra_info_of_changesets
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return if extra_info.nil?
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v = extra_info["extra_report_last_commit"]
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write_attribute(:extra_info, nil)
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h = {}
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h["extra_report_last_commit"] = v
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merge_extra_info(h)
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self.save
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end
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private :clear_extra_info_of_changesets
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end
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