fixes #98 protection against float division of percentage stats

rhodecode/controllers/admin/repos.py

@@ -1,313 +1,313 b''
 # -*- coding: utf-8 -*-
 """
     rhodecode.controllers.admin.repos
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     
     Admin controller for RhodeCode
     
     :created_on: Apr 7, 2010
     :author: marcink
     :copyright: (C) 2009-2011 Marcin Kuzminski <[e-mail]>    
     :license: GPLv3, see COPYING for more details.
 """
 # 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.
 
 import logging
 import traceback
 import formencode
 from operator import itemgetter
 from formencode import htmlfill
 
 from paste.httpexceptions import HTTPInternalServerError
 from pylons import request, response, session, tmpl_context as c, url
 from pylons.controllers.util import abort, redirect
 from pylons.i18n.translation import _
 
 from rhodecode.lib import helpers as h
 from rhodecode.lib.auth import LoginRequired, HasPermissionAllDecorator, \
     HasPermissionAnyDecorator
 from rhodecode.lib.base import BaseController, render
 from rhodecode.lib.utils import invalidate_cache, action_logger
 from rhodecode.model.db import User
 from rhodecode.model.forms import RepoForm
 from rhodecode.model.scm import ScmModel
 from rhodecode.model.repo import RepoModel
 
 
 log = logging.getLogger(__name__)
 
 class ReposController(BaseController):
     """REST Controller styled on the Atom Publishing Protocol"""
     # To properly map this controller, ensure your config/routing.py
     # file has a resource setup:
     #     map.resource('repo', 'repos')
 
     @LoginRequired()
     @HasPermissionAnyDecorator('hg.admin', 'hg.create.repository')
     def __before__(self):
         c.admin_user = session.get('admin_user')
         c.admin_username = session.get('admin_username')
         super(ReposController, self).__before__()
 
     @HasPermissionAllDecorator('hg.admin')
     def index(self, format='html'):
         """GET /repos: All items in the collection"""
         # url('repos')
         cached_repo_list = ScmModel().get_repos()
         c.repos_list = sorted(cached_repo_list, key=itemgetter('name_sort'))
         return render('admin/repos/repos.html')
 
     @HasPermissionAnyDecorator('hg.admin', 'hg.create.repository')
     def create(self):
         """POST /repos: Create a new item"""
         # url('repos')
         repo_model = RepoModel()
         _form = RepoForm()()
         form_result = {}
         try:
             form_result = _form.to_python(dict(request.POST))
             repo_model.create(form_result, c.rhodecode_user)
             h.flash(_('created repository %s') % form_result['repo_name'],
                     category='success')
 
             if request.POST.get('user_created'):
                 action_logger(self.rhodecode_user, 'user_created_repo',
                               form_result['repo_name'], '', self.sa)
             else:
                 action_logger(self.rhodecode_user, 'admin_created_repo',
                               form_result['repo_name'], '', self.sa)
 
         except formencode.Invalid, errors:
             c.new_repo = errors.value['repo_name']
 
             if request.POST.get('user_created'):
                 r = render('admin/repos/repo_add_create_repository.html')
             else:
                 r = render('admin/repos/repo_add.html')
 
             return htmlfill.render(
                 r,
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8")
 
         except Exception:
             log.error(traceback.format_exc())
             msg = _('error occurred during creation of repository %s') \
                     % form_result.get('repo_name')
             h.flash(msg, category='error')
         if request.POST.get('user_created'):
             return redirect(url('home'))
         return redirect(url('repos'))
 
     @HasPermissionAllDecorator('hg.admin')
     def new(self, format='html'):
         """GET /repos/new: Form to create a new item"""
         new_repo = request.GET.get('repo', '')
         c.new_repo = h.repo_name_slug(new_repo)
 
         return render('admin/repos/repo_add.html')
 
     @HasPermissionAllDecorator('hg.admin')
     def update(self, repo_name):
         """PUT /repos/repo_name: Update an existing item"""
         # Forms posted to this method should contain a hidden field:
         #    <input type="hidden" name="_method" value="PUT" />
         # Or using helpers:
         #    h.form(url('repo', repo_name=ID),
         #           method='put')
         # url('repo', repo_name=ID)
         repo_model = RepoModel()
         changed_name = repo_name
         _form = RepoForm(edit=True, old_data={'repo_name':repo_name})()
 
         try:
             form_result = _form.to_python(dict(request.POST))
             repo_model.update(repo_name, form_result)
             invalidate_cache('get_repo_cached_%s' % repo_name)
             h.flash(_('Repository %s updated successfully' % repo_name),
                     category='success')
             changed_name = form_result['repo_name']
             action_logger(self.rhodecode_user, 'admin_updated_repo',
                               changed_name, '', self.sa)
 
         except formencode.Invalid, errors:
             c.repo_info = repo_model.get_by_repo_name(repo_name)
             if c.repo_info.stats:
                 last_rev = c.repo_info.stats.stat_on_revision
             else:
                 last_rev = 0
             c.stats_revision = last_rev
             r = ScmModel().get(repo_name)
             c.repo_last_rev = r.revisions[-1] if r.revisions else 0
 
             if last_rev == 0:
                 c.stats_percentage = 0
             else:
                 c.stats_percentage = '%.2f' % ((float((last_rev)) /
                                                 c.repo_last_rev) * 100)
 
             c.users_array = repo_model.get_users_js()
             errors.value.update({'user':c.repo_info.user.username})
             return htmlfill.render(
                 render('admin/repos/repo_edit.html'),
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8")
 
         except Exception:
             log.error(traceback.format_exc())
             h.flash(_('error occurred during update of repository %s') \
                     % repo_name, category='error')
 
         return redirect(url('edit_repo', repo_name=changed_name))
 
     @HasPermissionAllDecorator('hg.admin')
     def delete(self, repo_name):
         """DELETE /repos/repo_name: Delete an existing item"""
         # Forms posted to this method should contain a hidden field:
         #    <input type="hidden" name="_method" value="DELETE" />
         # Or using helpers:
         #    h.form(url('repo', repo_name=ID),
         #           method='delete')
         # url('repo', repo_name=ID)
 
         repo_model = RepoModel()
         repo = repo_model.get_by_repo_name(repo_name)
         if not repo:
             h.flash(_('%s repository is not mapped to db perhaps'
                       ' it was moved or renamed  from the filesystem'
                       ' please run the application again'
                       ' in order to rescan repositories') % repo_name,
                       category='error')
 
             return redirect(url('repos'))
         try:
             action_logger(self.rhodecode_user, 'admin_deleted_repo',
                               repo_name, '', self.sa)
             repo_model.delete(repo)
             invalidate_cache('get_repo_cached_%s' % repo_name)
             h.flash(_('deleted repository %s') % repo_name, category='success')
 
         except Exception, e:
             log.error(traceback.format_exc())
             h.flash(_('An error occurred during deletion of %s') % repo_name,
                     category='error')
 
         return redirect(url('repos'))
 
     @HasPermissionAllDecorator('hg.admin')
     def delete_perm_user(self, repo_name):
         """
         DELETE an existing repository permission user
         :param repo_name:
         """
 
         try:
             repo_model = RepoModel()
             repo_model.delete_perm_user(request.POST, repo_name)
         except Exception, e:
             h.flash(_('An error occurred during deletion of repository user'),
                     category='error')
             raise HTTPInternalServerError()
 
     @HasPermissionAllDecorator('hg.admin')
     def repo_stats(self, repo_name):
         """
         DELETE an existing repository statistics
         :param repo_name:
         """
 
         try:
             repo_model = RepoModel()
             repo_model.delete_stats(repo_name)
         except Exception, e:
             h.flash(_('An error occurred during deletion of repository stats'),
                     category='error')
         return redirect(url('edit_repo', repo_name=repo_name))
 
     @HasPermissionAllDecorator('hg.admin')
     def repo_cache(self, repo_name):
         """
         INVALIDATE existing repository cache
         :param repo_name:
         """
 
         try:
             ScmModel().mark_for_invalidation(repo_name)
         except Exception, e:
             h.flash(_('An error occurred during cache invalidation'),
                     category='error')
         return redirect(url('edit_repo', repo_name=repo_name))
 
     @HasPermissionAllDecorator('hg.admin')
     def show(self, repo_name, format='html'):
         """GET /repos/repo_name: Show a specific item"""
         # url('repo', repo_name=ID)
 
     @HasPermissionAllDecorator('hg.admin')
     def edit(self, repo_name, format='html'):
         """GET /repos/repo_name/edit: Form to edit an existing item"""
         # url('edit_repo', repo_name=ID)
         repo_model = RepoModel()
         r = ScmModel().get(repo_name)
         c.repo_info = repo_model.get_by_repo_name(repo_name)
 
         if c.repo_info is None:
             h.flash(_('%s repository is not mapped to db perhaps'
                       ' it was created or renamed from the filesystem'
                       ' please run the application again'
                       ' in order to rescan repositories') % repo_name,
                       category='error')
 
             return redirect(url('repos'))
 
         if c.repo_info.stats:
             last_rev = c.repo_info.stats.stat_on_revision
         else:
             last_rev = 0
         c.stats_revision = last_rev
 
         c.repo_last_rev = r.revisions[-1] if r.revisions else 0
 
-        if last_rev == 0:
+        if last_rev == 0 or c.repo_last_rev == 0:
             c.stats_percentage = 0
         else:
             c.stats_percentage = '%.2f' % ((float((last_rev)) /
                                             c.repo_last_rev) * 100)
 
         defaults = c.repo_info.get_dict()
         if c.repo_info.user:
             defaults.update({'user':c.repo_info.user.username})
         else:
             replacement_user = self.sa.query(User)\
             .filter(User.admin == True).first().username
             defaults.update({'user':replacement_user})
 
         c.users_array = repo_model.get_users_js()
 
         for p in c.repo_info.repo_to_perm:
             defaults.update({'perm_%s' % p.user.username:
                              p.permission.permission_name})
 
         return htmlfill.render(
             render('admin/repos/repo_edit.html'),
             defaults=defaults,
             encoding="UTF-8",
             force_defaults=False
         )