Git patch added (#259) with annotate support. Changeset revision field changed to string.

TODO:
* fix Darcs support and add tests for Darcs
* maybe remove scmid column by moving commit hashes to Changeset#revision for all DSCM

git-svn-id: http://redmine.rubyforge.org/svn/branches/work@1201 e93f8b46-1217-0410-a6f0-8f06a7374b81

git/app/models/repository/bazaar.rb

@@ -51,7 +51,7 @@ class Repository::Bazaar < Repository
     scm_info = scm.info
     if scm_info
       # latest revision found in database
-      db_revision = latest_changeset ? latest_changeset.revision : 0
+      db_revision = latest_changeset ? latest_changeset.revision.to_i : 0
       # latest revision in the repository
       scm_revision = scm_info.lastrev.identifier.to_i
       if db_revision < scm_revision

git/app/models/repository/cvs.rb

@@ -82,9 +82,6 @@ class Repository::Cvs < Repository
   end
   
   def fetch_changesets
-    #not the preferred way with CVS. maybe we should introduce always a cron-job for this
-    last_commit = changesets.maximum(:committed_on)
-    
     # some nifty bits to introduce a commit-id with cvs
     # natively cvs doesn't provide any kind of changesets, there is only a revision per file.
     # we now take a guess using the author, the commitlog and the commit-date.
@@ -94,8 +91,9 @@ class Repository::Cvs < Repository
     # we use a small delta here, to merge all changes belonging to _one_ changeset
     time_delta=10.seconds
     
+    fetch_since = latest_changeset ? latest_changeset.committed_on : nil
     transaction do
-      scm.revisions('', last_commit, nil, :with_paths => true) do |revision|
+      scm.revisions('', fetch_since, nil, :with_paths => true) do |revision|
         # only add the change to the database, if it doen't exists. the cvs log
         # is not exclusive at all. 
         unless changes.find_by_path_and_revision(scm.with_leading_slash(revision.paths[0][:path]), revision.paths[0][:revision])
@@ -107,18 +105,14 @@ class Repository::Cvs < Repository
           })
         
           # create a new changeset.... 
-          unless cs 
-            # we use a negative changeset-number here (just for inserting)
-            # later on, we calculate a continous positive number
-            next_rev = changesets.minimum(:revision)            
-            next_rev = 0 if next_rev.nil? or next_rev > 0 
-            next_rev = next_rev - 1
-            
-            cs=Changeset.create(:repository => self,
-            :revision => next_rev, 
-            :committer => revision.author, 
-            :committed_on => revision.time,
-            :comments => revision.message)
+          unless cs
+            latest = changesets.find(:first, :order => 'id DESC')
+            next_rev = latest ? latest.revision.to_i + 1 : '1'
+            cs = Changeset.create(:repository => self,
+                                  :revision => next_rev, 
+                                  :committer => revision.author, 
+                                  :committed_on => revision.time,
+                                  :comments => revision.message)
           end
         
           #convert CVS-File-States to internal Action-abbrevations
@@ -138,13 +132,6 @@ class Repository::Cvs < Repository
           )
         end
       end
-      
-      next_rev = [changesets.maximum(:revision) || 0, 0].max
-      changesets.find(:all, :conditions=>["revision < 0"], :order=>"committed_on ASC").each() do |changeset|
-        next_rev = next_rev + 1
-        changeset.revision = next_rev
-        changeset.save!
-      end
     end
   end
 end

git/app/models/repository/git.rb

@@ -0,0 +1,64 @@
+# 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 fetch_changesets
+    scm_info = scm.info
+    if scm_info
+      # latest revision found in database
+      db_revision = latest_changeset ? latest_changeset.revision : nil
+      # latest revision in the repository
+      scm_revision = scm_info.lastrev.scmid
+
+      unless changesets.find_by_scmid(scm_revision)
+
+        revisions = scm.revisions('', db_revision, nil)
+        transaction do
+          revisions.reverse_each do |revision|
+            changeset = Changeset.create(:repository => self,
+                                         :revision => revision.identifier,
+                                         :scmid => revision.scmid,
+                                         :committer => revision.author, 
+                                         :committed_on => revision.time,
+                                         :comments => revision.message)
+            
+            revision.paths.each do |change|
+              Change.create(:changeset => changeset,
+                            :action => change[:action],
+                            :path => change[:path],
+                            :from_path => change[:from_path],
+                            :from_revision => change[:from_revision])
+            end
+          end
+        end
+      end
+    end
+  end
+end

git/app/models/repository/subversion.rb

@@ -39,7 +39,7 @@ class Repository::Subversion < Repository
     scm_info = scm.info
     if scm_info
       # latest revision found in database
-      db_revision = latest_changeset ? latest_changeset.revision : 0
+      db_revision = latest_changeset ? latest_changeset.revision.to_i : 0
       # latest revision in the repository
       scm_revision = scm_info.lastrev.identifier.to_i
       if db_revision < scm_revision