--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rhodecode/controllers/changelog.py	Wed Oct 06 03:18:16 2010 +0200
@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# changelog controller for pylons
+# Copyright (C) 2009-2010 Marcin Kuzminski <marcin@python-works.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; version 2
+# of the License or (at your opinion) any later version of the license.
+# 
+# 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.
+"""
+Created on April 21, 2010
+changelog controller for pylons
+@author: marcink
+"""
+from json import dumps
+from mercurial.graphmod import colored, CHANGESET, revisions as graph_rev
+from pylons import request, session, tmpl_context as c
+from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator
+from rhodecode.lib.base import BaseController, render
+from rhodecode.model.hg_model import HgModel
+from webhelpers.paginate import Page
+import logging
+log = logging.getLogger(__name__)
+
+class ChangelogController(BaseController):
+    
+    @LoginRequired()
+    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
+                                   'repository.admin')    
+    def __before__(self):
+        super(ChangelogController, self).__before__()
+                
+    def index(self):
+        limit = 100
+        default = 20
+        if request.params.get('size'):
+            try:
+                int_size = int(request.params.get('size'))
+            except ValueError:
+                int_size = default
+            int_size = int_size if int_size <= limit else limit 
+            c.size = int_size
+            session['changelog_size'] = c.size
+            session.save()
+        else:
+            c.size = int(session.get('changelog_size', default))
+
+        changesets = HgModel().get_repo(c.repo_name)
+            
+        p = int(request.params.get('page', 1))
+        c.total_cs = len(changesets)
+        c.pagination = Page(changesets, page=p, item_count=c.total_cs,
+                            items_per_page=c.size)
+            
+        self._graph(changesets, c.size, p)
+        
+        return render('changelog/changelog.html')
+
+
+    def _graph(self, repo, size, p):
+        revcount = size
+        if not repo.revisions:return dumps([]), 0
+        
+        max_rev = repo.revisions[-1]
+        offset = 1 if p == 1 else  ((p - 1) * revcount + 1)
+        rev_start = repo.revisions[(-1 * offset)]
+        
+        revcount = min(max_rev, revcount)
+        rev_end = max(0, rev_start - revcount)
+        dag = graph_rev(repo.repo, rev_start, rev_end)
+        
+        c.dag = tree = list(colored(dag))
+        data = []
+        for (id, type, ctx, vtx, edges) in tree:
+            if type != CHANGESET:
+                continue
+            data.append(('', vtx, edges))
+    
+        c.jsdata = dumps(data) 
+