Added basic support for CVS and Mercurial SCMs.

Browsing, changesets fetching and diff viewing are implemented.
Only tested with local repositories.

Thanks to Ralph Vater for CVS specific code.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@559 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/052_add_changes_revision.rb

@@ -0,0 +1,9 @@
+class AddChangesRevision < ActiveRecord::Migration
+  def self.up
+    add_column :changes, :revision, :string
+  end
+
+  def self.down
+    remove_column :changes, :revision
+  end
+end

db/migrate/053_add_changes_branch.rb

@@ -0,0 +1,9 @@
+class AddChangesBranch < ActiveRecord::Migration
+  def self.up
+    add_column :changes, :branch, :string
+  end
+
+  def self.down
+    remove_column :changes, :branch
+  end
+end

db/migrate/054_add_changesets_scmid.rb

@@ -0,0 +1,9 @@
+class AddChangesetsScmid < ActiveRecord::Migration
+  def self.up
+    add_column :changesets, :scmid, :string
+  end
+
+  def self.down
+    remove_column :changesets, :scmid
+  end
+end

db/migrate/055_add_repositories_type.rb

@@ -0,0 +1,11 @@
+class AddRepositoriesType < ActiveRecord::Migration
+  def self.up
+    add_column :repositories, :type, :string    
+    # Set class name for existing SVN repositories
+    Repository.update_all "type = 'Subversion'"
+  end
+
+  def self.down
+    remove_column :repositories, :type
+  end
+end

db/migrate/056_add_repositories_changes_permission.rb

@@ -0,0 +1,9 @@
+class AddRepositoriesChangesPermission < ActiveRecord::Migration
+  def self.up
+    Permission.create :controller => 'repositories', :action => 'changes', :description => 'label_change_plural', :sort => 1475, :is_public => true, :mail_option => 0, :mail_enabled => 0
+  end
+
+  def self.down
+    Permission.find_by_controller_and_action('repositories', 'changes').destroy
+  end
+end