diff app/models/repository/git.rb @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/models/repository/git.rb	Fri Jul 23 15:52:44 2010 +0100
@@ -0,0 +1,81 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  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 scm_adapter
+    Redmine::Scm::Adapters::GitAdapter
+  end
+  
+  def self.scm_name
+    'Git'
+  end
+
+  def branches
+    scm.branches
+  end
+
+  def tags
+    scm.tags
+  end
+
+  # With SCM's that have a sequential commit numbering, redmine is able to be
+  # clever and only fetch changesets going forward from the most recent one
+  # it knows about.  However, with git, you never know if people have merged
+  # commits into the middle of the repository history, so we should parse
+  # the entire log. Since it's way too slow for large repositories, we only
+  # parse 1 week before the last known commit.
+  # The repository can still be fully reloaded by calling #clear_changesets
+  # before fetching changesets (eg. for offline resync)
+  def fetch_changesets
+    c = changesets.find(:first, :order => 'committed_on DESC')
+    since = (c ? c.committed_on - 7.days : nil)
+
+    revisions = scm.revisions('', nil, nil, :all => true, :since => since)
+    return if revisions.nil? || revisions.empty?
+
+    recent_changesets = changesets.find(:all, :conditions => ['committed_on >= ?', since])
+
+    # Clean out revisions that are no longer in git
+    recent_changesets.each {|c| c.destroy unless revisions.detect {|r| r.scmid.to_s == c.scmid.to_s }}
+
+    # Subtract revisions that redmine already knows about
+    recent_revisions = recent_changesets.map{|c| c.scmid}
+    revisions.reject!{|r| recent_revisions.include?(r.scmid)}
+
+    # Save the remaining ones to the database
+    revisions.each{|r| r.save(self)} unless revisions.nil?
+  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
+end