Add git version detection to warn users that Git used in system is to old. ref #588

- also show git version in system details in settings page

rhodecode/config/environment.py

@@ -1,106 +1,109
 """Pylons environment configuration"""
 
 import os
 import logging
 import rhodecode
 
 from mako.lookup import TemplateLookup
 from pylons.configuration import PylonsConfig
 from pylons.error import handle_mako_error
 
 # don't remove this import it does magic for celery
 from rhodecode.lib import celerypylons
 
 import rhodecode.lib.app_globals as app_globals
 
 from rhodecode.config.routing import make_map
 
 from rhodecode.lib import helpers
 from rhodecode.lib.auth import set_available_permissions
 from rhodecode.lib.utils import repo2db_mapper, make_ui, set_rhodecode_config,\
-    load_rcextensions
+    load_rcextensions, check_git_version
 from rhodecode.lib.utils2 import engine_from_config, str2bool
 from rhodecode.model import init_model
 from rhodecode.model.scm import ScmModel
 
 log = logging.getLogger(__name__)
 
 
 def load_environment(global_conf, app_conf, initial=False):
     """
     Configure the Pylons environment via the ``pylons.config``
     object
     """
     config = PylonsConfig()
 
     # Pylons paths
     root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
     paths = dict(
         root=root,
         controllers=os.path.join(root, 'controllers'),
         static_files=os.path.join(root, 'public'),
         templates=[os.path.join(root, 'templates')]
     )
 
     # Initialize config with the basic options
     config.init_app(global_conf, app_conf, package='rhodecode', paths=paths)
 
     # store some globals into rhodecode
     rhodecode.CELERY_ON = str2bool(config['app_conf'].get('use_celery'))
     rhodecode.CELERY_EAGER = str2bool(config['app_conf'].get('celery.always.eager'))
 
     config['routes.map'] = make_map(config)
     config['pylons.app_globals'] = app_globals.Globals(config)
     config['pylons.h'] = helpers
     rhodecode.CONFIG = config
 
     load_rcextensions(root_path=config['here'])
 
     # Setup cache object as early as possible
     import pylons
     pylons.cache._push_object(config['pylons.app_globals'].cache)
 
     # Create the Mako TemplateLookup, with the default auto-escaping
     config['pylons.app_globals'].mako_lookup = TemplateLookup(
         directories=paths['templates'],
         error_handler=handle_mako_error,
         module_directory=os.path.join(app_conf['cache_dir'], 'templates'),
         input_encoding='utf-8', default_filters=['escape'],
         imports=['from webhelpers.html import escape'])
 
     # sets the c attribute access when don't existing attribute are accessed
     config['pylons.strict_tmpl_context'] = True
     test = os.path.split(config['__file__'])[-1] == 'test.ini'
     if test:
         if os.environ.get('TEST_DB'):
             # swap config if we pass enviroment variable
             config['sqlalchemy.db1.url'] = os.environ.get('TEST_DB')
 
         from rhodecode.lib.utils import create_test_env, create_test_index
         from rhodecode.tests import  TESTS_TMP_PATH
         # set RC_NO_TMP_PATH=1 to disable re-creating the database and
         # test repos
         if not int(os.environ.get('RC_NO_TMP_PATH', 0)):
             create_test_env(TESTS_TMP_PATH, config)
         # set RC_WHOOSH_TEST_DISABLE=1 to disable whoosh index during tests
         if not int(os.environ.get('RC_WHOOSH_TEST_DISABLE', 0)):
             create_test_index(TESTS_TMP_PATH, config, True)
 
+    #check git version
+    check_git_version()
+
     # MULTIPLE DB configs
     # Setup the SQLAlchemy database engine
     sa_engine_db1 = engine_from_config(config, 'sqlalchemy.db1.')
     init_model(sa_engine_db1)
 
     repos_path = make_ui('db').configitems('paths')[0][1]
     repo2db_mapper(ScmModel().repo_scan(repos_path),
                    remove_obsolete=False, install_git_hook=False)
     set_available_permissions(config)
     config['base_path'] = repos_path
     set_rhodecode_config(config)
     # CONFIGURATION OPTIONS HERE (note: all config options will override
     # any Pylons config options)
 
     # store config reference into our module to skip import magic of
     # pylons
     rhodecode.CONFIG.update(config)
     return config

rhodecode/controllers/admin/settings.py

@@ -1,502 +1,503
 # -*- coding: utf-8 -*-
 """
     rhodecode.controllers.admin.settings
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
     settings controller for rhodecode admin
 
     :created_on: Jul 14, 2010
     :author: marcink
     :copyright: (C) 2010-2012 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, either version 3 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, see <http://www.gnu.org/licenses/>.
 
 import logging
 import traceback
 import formencode
 import pkg_resources
 import platform
 
 from sqlalchemy import func
 from formencode import htmlfill
 from pylons import request, session, tmpl_context as c, url, config
 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, NotAnonymous
 from rhodecode.lib.base import BaseController, render
 from rhodecode.lib.celerylib import tasks, run_task
 from rhodecode.lib.utils import repo2db_mapper, invalidate_cache, \
-    set_rhodecode_config, repo_name_slug
+    set_rhodecode_config, repo_name_slug, check_git_version
 from rhodecode.model.db import RhodeCodeUi, Repository, RepoGroup, \
     RhodeCodeSetting, PullRequest, PullRequestReviewers
 from rhodecode.model.forms import UserForm, ApplicationSettingsForm, \
     ApplicationUiSettingsForm, ApplicationVisualisationForm
 from rhodecode.model.scm import ScmModel
 from rhodecode.model.user import UserModel
 from rhodecode.model.db import User
 from rhodecode.model.notification import EmailNotificationModel
 from rhodecode.model.meta import Session
 from rhodecode.lib.utils2 import str2bool
 
 log = logging.getLogger(__name__)
 
 
 class SettingsController(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('setting', 'settings', controller='admin/settings',
     #         path_prefix='/admin', name_prefix='admin_')
 
     @LoginRequired()
     def __before__(self):
         c.admin_user = session.get('admin_user')
         c.admin_username = session.get('admin_username')
         c.modules = sorted([(p.project_name, p.version)
-                            for p in pkg_resources.working_set],
+                            for p in pkg_resources.working_set]
+                           + [('git', check_git_version())],
                            key=lambda k: k[0].lower())
         c.py_version = platform.python_version()
         c.platform = platform.platform()
         super(SettingsController, self).__before__()
 
     @HasPermissionAllDecorator('hg.admin')
     def index(self, format='html'):
         """GET /admin/settings: All items in the collection"""
         # url('admin_settings')
 
         defaults = RhodeCodeSetting.get_app_settings()
         defaults.update(self._get_hg_ui_settings())
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=defaults,
             encoding="UTF-8",
             force_defaults=False
         )
 
     @HasPermissionAllDecorator('hg.admin')
     def create(self):
         """POST /admin/settings: Create a new item"""
         # url('admin_settings')
 
     @HasPermissionAllDecorator('hg.admin')
     def new(self, format='html'):
         """GET /admin/settings/new: Form to create a new item"""
         # url('admin_new_setting')
 
     @HasPermissionAllDecorator('hg.admin')
     def update(self, setting_id):
         """PUT /admin/settings/setting_id: 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('admin_setting', setting_id=ID),
         #           method='put')
         # url('admin_setting', setting_id=ID)
 
         if setting_id == 'mapping':
             rm_obsolete = request.POST.get('destroy', False)
             log.debug('Rescanning directories with destroy=%s' % rm_obsolete)
             initial = ScmModel().repo_scan()
             log.debug('invalidating all repositories')
             for repo_name in initial.keys():
                 invalidate_cache('get_repo_cached_%s' % repo_name)
 
             added, removed = repo2db_mapper(initial, rm_obsolete)
 
             h.flash(_('Repositories successfully'
                       ' rescanned added: %s,removed: %s') % (added, removed),
                       category='success')
 
         if setting_id == 'whoosh':
             repo_location = self._get_hg_ui_settings()['paths_root_path']
             full_index = request.POST.get('full_index', False)
             run_task(tasks.whoosh_index, repo_location, full_index)
             h.flash(_('Whoosh reindex task scheduled'), category='success')
 
         if setting_id == 'global':
 
             application_form = ApplicationSettingsForm()()
             try:
                 form_result = application_form.to_python(dict(request.POST))
             except formencode.Invalid, errors:
                 return htmlfill.render(
                      render('admin/settings/settings.html'),
                      defaults=errors.value,
                      errors=errors.error_dict or {},
                      prefix_error=False,
                      encoding="UTF-8"
                 )
 
             try:
                 sett1 = RhodeCodeSetting.get_by_name_or_create('title')
                 sett1.app_settings_value = form_result['rhodecode_title']
                 Session().add(sett1)
 
                 sett2 = RhodeCodeSetting.get_by_name_or_create('realm')
                 sett2.app_settings_value = form_result['rhodecode_realm']
                 Session().add(sett2)
 
                 sett3 = RhodeCodeSetting.get_by_name_or_create('ga_code')
                 sett3.app_settings_value = form_result['rhodecode_ga_code']
                 Session().add(sett3)
 
                 Session().commit()
                 set_rhodecode_config(config)
                 h.flash(_('Updated application settings'), category='success')
 
             except Exception:
                 log.error(traceback.format_exc())
                 h.flash(_('error occurred during updating '
                           'application settings'),
                           category='error')
 
         if setting_id == 'visual':
 
             application_form = ApplicationVisualisationForm()()
             try:
                 form_result = application_form.to_python(dict(request.POST))
             except formencode.Invalid, errors:
                 return htmlfill.render(
                      render('admin/settings/settings.html'),
                      defaults=errors.value,
                      errors=errors.error_dict or {},
                      prefix_error=False,
                      encoding="UTF-8"
                 )
 
             try:
                 sett1 = RhodeCodeSetting.get_by_name_or_create('show_public_icon')
                 sett1.app_settings_value = \
                     form_result['rhodecode_show_public_icon']
 
                 sett2 = RhodeCodeSetting.get_by_name_or_create('show_private_icon')
                 sett2.app_settings_value = \
                     form_result['rhodecode_show_private_icon']
 
                 sett3 = RhodeCodeSetting.get_by_name_or_create('stylify_metatags')
                 sett3.app_settings_value = \
                     form_result['rhodecode_stylify_metatags']
 
                 Session().add(sett1)
                 Session().add(sett2)
                 Session().add(sett3)
                 Session().commit()
                 set_rhodecode_config(config)
                 h.flash(_('Updated visualisation settings'),
                         category='success')
 
             except Exception:
                 log.error(traceback.format_exc())
                 h.flash(_('error occurred during updating '
                           'visualisation settings'),
                         category='error')
 
         if setting_id == 'vcs':
             application_form = ApplicationUiSettingsForm()()
             try:
                 form_result = application_form.to_python(dict(request.POST))
             except formencode.Invalid, errors:
                 return htmlfill.render(
                      render('admin/settings/settings.html'),
                      defaults=errors.value,
                      errors=errors.error_dict or {},
                      prefix_error=False,
                      encoding="UTF-8"
                 )
 
             try:
                 # fix namespaces for hooks and extensions
                 _f = lambda s: s.replace('.', '_')
 
                 sett = RhodeCodeUi.get_by_key('push_ssl')
                 sett.ui_value = form_result['web_push_ssl']
                 Session().add(sett)
 
                 sett = RhodeCodeUi.get_by_key('/')
                 sett.ui_value = form_result['paths_root_path']
                 Session().add(sett)
 
                 #HOOKS
                 sett = RhodeCodeUi.get_by_key(RhodeCodeUi.HOOK_UPDATE)
                 sett.ui_active = form_result[_f('hooks_%s' %
                                                 RhodeCodeUi.HOOK_UPDATE)]
                 Session().add(sett)
 
                 sett = RhodeCodeUi.get_by_key(RhodeCodeUi.HOOK_REPO_SIZE)
                 sett.ui_active = form_result[_f('hooks_%s' %
                                                 RhodeCodeUi.HOOK_REPO_SIZE)]
                 Session().add(sett)
 
                 sett = RhodeCodeUi.get_by_key(RhodeCodeUi.HOOK_PUSH)
                 sett.ui_active = form_result[_f('hooks_%s' %
                                                 RhodeCodeUi.HOOK_PUSH)]
                 Session().add(sett)
 
                 sett = RhodeCodeUi.get_by_key(RhodeCodeUi.HOOK_PULL)
                 sett.ui_active = form_result[_f('hooks_%s' %
                                                  RhodeCodeUi.HOOK_PULL)]
 
                 Session().add(sett)
 
                 ## EXTENSIONS
                 sett = RhodeCodeUi.get_by_key('largefiles')
                 if not sett:
                     #make one if it's not there !
                     sett = RhodeCodeUi()
                     sett.ui_key = 'largefiles'
                     sett.ui_section = 'extensions'
                 sett.ui_active = form_result[_f('extensions_largefiles')]
                 Session().add(sett)
 
                 sett = RhodeCodeUi.get_by_key('hgsubversion')
                 if not sett:
                     #make one if it's not there !
                     sett = RhodeCodeUi()
                     sett.ui_key = 'hgsubversion'
                     sett.ui_section = 'extensions'
 
                 sett.ui_active = form_result[_f('extensions_hgsubversion')]
                 Session().add(sett)
 
 #                sett = RhodeCodeUi.get_by_key('hggit')
 #                if not sett:
 #                    #make one if it's not there !
 #                    sett = RhodeCodeUi()
 #                    sett.ui_key = 'hggit'
 #                    sett.ui_section = 'extensions'
 #
 #                sett.ui_active = form_result[_f('extensions_hggit')]
 #                Session().add(sett)
 
                 Session().commit()
 
                 h.flash(_('Updated VCS settings'), category='success')
 
             except Exception:
                 log.error(traceback.format_exc())
                 h.flash(_('error occurred during updating '
                           'application settings'), category='error')
 
         if setting_id == 'hooks':
             ui_key = request.POST.get('new_hook_ui_key')
             ui_value = request.POST.get('new_hook_ui_value')
             try:
 
                 if ui_value and ui_key:
                     RhodeCodeUi.create_or_update_hook(ui_key, ui_value)
                     h.flash(_('Added new hook'),
                             category='success')
 
                 # check for edits
                 update = False
                 _d = request.POST.dict_of_lists()
                 for k, v in zip(_d.get('hook_ui_key', []),
                                 _d.get('hook_ui_value_new', [])):
                     RhodeCodeUi.create_or_update_hook(k, v)
                     update = True
 
                 if update:
                     h.flash(_('Updated hooks'), category='success')
                 Session().commit()
             except Exception:
                 log.error(traceback.format_exc())
                 h.flash(_('error occurred during hook creation'),
                         category='error')
 
             return redirect(url('admin_edit_setting', setting_id='hooks'))
 
         if setting_id == 'email':
             test_email = request.POST.get('test_email')
             test_email_subj = 'RhodeCode TestEmail'
             test_email_body = 'RhodeCode Email test'
 
             test_email_html_body = EmailNotificationModel()\
                 .get_email_tmpl(EmailNotificationModel.TYPE_DEFAULT,
                                 body=test_email_body)
 
             recipients = [test_email] if [test_email] else None
 
             run_task(tasks.send_email, recipients, test_email_subj,
                      test_email_body, test_email_html_body)
 
             h.flash(_('Email task created'), category='success')
         return redirect(url('admin_settings'))
 
     @HasPermissionAllDecorator('hg.admin')
     def delete(self, setting_id):
         """DELETE /admin/settings/setting_id: 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('admin_setting', setting_id=ID),
         #           method='delete')
         # url('admin_setting', setting_id=ID)
         if setting_id == 'hooks':
             hook_id = request.POST.get('hook_id')
             RhodeCodeUi.delete(hook_id)
             Session().commit()
 
     @HasPermissionAllDecorator('hg.admin')
     def show(self, setting_id, format='html'):
         """
         GET /admin/settings/setting_id: Show a specific item"""
         # url('admin_setting', setting_id=ID)
 
     @HasPermissionAllDecorator('hg.admin')
     def edit(self, setting_id, format='html'):
         """
         GET /admin/settings/setting_id/edit: Form to
         edit an existing item"""
         # url('admin_edit_setting', setting_id=ID)
 
         c.hooks = RhodeCodeUi.get_builtin_hooks()
         c.custom_hooks = RhodeCodeUi.get_custom_hooks()
 
         return htmlfill.render(
             render('admin/settings/hooks.html'),
             defaults={},
             encoding="UTF-8",
             force_defaults=False
         )
 
     @NotAnonymous()
     def my_account(self):
         """
         GET /_admin/my_account Displays info about my account
         """
         # url('admin_settings_my_account')
 
         c.user = User.get(self.rhodecode_user.user_id)
         all_repos = Session().query(Repository)\
                      .filter(Repository.user_id == c.user.user_id)\
                      .order_by(func.lower(Repository.repo_name)).all()
 
         c.user_repos = ScmModel().get_repos(all_repos)
 
         if c.user.username == 'default':
             h.flash(_("You can't edit this user since it's"
               " crucial for entire application"), category='warning')
             return redirect(url('users'))
 
         defaults = c.user.get_dict()
 
         c.form = htmlfill.render(
             render('admin/users/user_edit_my_account_form.html'),
             defaults=defaults,
             encoding="UTF-8",
             force_defaults=False
         )
         return render('admin/users/user_edit_my_account.html')
 
     @NotAnonymous()
     def my_account_update(self):
         """PUT /_admin/my_account_update: 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('admin_settings_my_account_update'),
         #           method='put')
         # url('admin_settings_my_account_update', id=ID)
         uid = self.rhodecode_user.user_id
         email = self.rhodecode_user.email
         _form = UserForm(edit=True,
                          old_data={'user_id': uid, 'email': email})()
         form_result = {}
         try:
             form_result = _form.to_python(dict(request.POST))
             UserModel().update_my_account(uid, form_result)
             h.flash(_('Your account was updated successfully'),
                     category='success')
             Session().commit()
         except formencode.Invalid, errors:
             c.user = User.get(self.rhodecode_user.user_id)
 
             c.form = htmlfill.render(
                 render('admin/users/user_edit_my_account_form.html'),
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8")
             return render('admin/users/user_edit_my_account.html')
         except Exception:
             log.error(traceback.format_exc())
             h.flash(_('error occurred during update of user %s') \
                     % form_result.get('username'), category='error')
 
         return redirect(url('my_account'))
 
     @NotAnonymous()
     def my_account_my_repos(self):
         all_repos = Session().query(Repository)\
             .filter(Repository.user_id == self.rhodecode_user.user_id)\
             .order_by(func.lower(Repository.repo_name))\
             .all()
         c.user_repos = ScmModel().get_repos(all_repos)
         return render('admin/users/user_edit_my_account_repos.html')
 
     @NotAnonymous()
     def my_account_my_pullrequests(self):
         c.my_pull_requests = PullRequest.query()\
                                 .filter(PullRequest.user_id==
                                         self.rhodecode_user.user_id)\
                                 .all()
         c.participate_in_pull_requests = \
             [x.pull_request for x in PullRequestReviewers.query()\
                                     .filter(PullRequestReviewers.user_id==
                                             self.rhodecode_user.user_id)\
                                     .all()]
         return render('admin/users/user_edit_my_account_pullrequests.html')
 
     @NotAnonymous()
     @HasPermissionAnyDecorator('hg.admin', 'hg.create.repository')
     def create_repository(self):
         """GET /_admin/create_repository: Form to create a new item"""
 
         c.repo_groups = RepoGroup.groups_choices(check_perms=True)
         c.repo_groups_choices = map(lambda k: unicode(k[0]), c.repo_groups)
         choices, c.landing_revs = ScmModel().get_repo_landing_revs()
 
         new_repo = request.GET.get('repo', '')
         c.new_repo = repo_name_slug(new_repo)
 
         return render('admin/repos/repo_add_create_repository.html')
 
     def _get_hg_ui_settings(self):
         ret = RhodeCodeUi.query().all()
 
         if not ret:
             raise Exception('Could not get application ui settings !')
         settings = {}
         for each in ret:
             k = each.ui_key
             v = each.ui_value
             if k == '/':
                 k = 'root_path'
 
             if k == 'push_ssl':
                 v = str2bool(v)
 
             if k.find('.') != -1:
                 k = k.replace('.', '_')
 
             if each.ui_section in ['hooks', 'extensions']:
                 v = each.ui_active
 
             settings[each.ui_section + '_' + k] = v
         return settings

rhodecode/lib/utils.py

@@ -1,674 +1,709
 # -*- coding: utf-8 -*-
 """
     rhodecode.lib.utils
     ~~~~~~~~~~~~~~~~~~~
 
     Utilities library for RhodeCode
 
     :created_on: Apr 18, 2010
     :author: marcink
     :copyright: (C) 2010-2012 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, either version 3 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, see <http://www.gnu.org/licenses/>.
 
 import os
 import re
 import logging
 import datetime
 import traceback
 import paste
 import beaker
 import tarfile
 import shutil
 from os.path import abspath
 from os.path import dirname as dn, join as jn
 
 from paste.script.command import Command, BadCommand
 
 from mercurial import ui, config
 
 from webhelpers.text import collapse, remove_formatting, strip_tags
 
 from rhodecode.lib.vcs import get_backend
 from rhodecode.lib.vcs.backends.base import BaseChangeset
 from rhodecode.lib.vcs.utils.lazy import LazyProperty
 from rhodecode.lib.vcs.utils.helpers import get_scm
 from rhodecode.lib.vcs.exceptions import VCSError
 
 from rhodecode.lib.caching_query import FromCache
 
 from rhodecode.model import meta
 from rhodecode.model.db import Repository, User, RhodeCodeUi, \
     UserLog, RepoGroup, RhodeCodeSetting, CacheInvalidation
 from rhodecode.model.meta import Session
 from rhodecode.model.repos_group import ReposGroupModel
 from rhodecode.lib.utils2 import safe_str, safe_unicode
 from rhodecode.lib.vcs.utils.fakemod import create_module
 
 log = logging.getLogger(__name__)
 
 REMOVED_REPO_PAT = re.compile(r'rm__\d{8}_\d{6}_\d{6}__.*')
 
 
 def recursive_replace(str_, replace=' '):
     """
     Recursive replace of given sign to just one instance
 
     :param str_: given string
     :param replace: char to find and replace multiple instances
 
     Examples::
     >>> recursive_replace("Mighty---Mighty-Bo--sstones",'-')
     'Mighty-Mighty-Bo-sstones'
     """
 
     if str_.find(replace * 2) == -1:
         return str_
     else:
         str_ = str_.replace(replace * 2, replace)
         return recursive_replace(str_, replace)
 
 
 def repo_name_slug(value):
     """
     Return slug of name of repository
     This function is called on each creation/modification
     of repository to prevent bad names in repo
     """
 
     slug = remove_formatting(value)
     slug = strip_tags(slug)
 
     for c in """`?=[]\;'"<>,/~!@#$%^&*()+{}|: """:
         slug = slug.replace(c, '-')
     slug = recursive_replace(slug, '-')
     slug = collapse(slug, '-')
     return slug
 
 
 def get_repo_slug(request):
     _repo = request.environ['pylons.routes_dict'].get('repo_name')
     if _repo:
         _repo = _repo.rstrip('/')
     return _repo
 
 
 def get_repos_group_slug(request):
     _group = request.environ['pylons.routes_dict'].get('group_name')
     if _group:
         _group = _group.rstrip('/')
     return _group
 
 
 def action_logger(user, action, repo, ipaddr='', sa=None, commit=False):
     """
     Action logger for various actions made by users
 
     :param user: user that made this action, can be a unique username string or
         object containing user_id attribute
     :param action: action to log, should be on of predefined unique actions for
         easy translations
     :param repo: string name of repository or object containing repo_id,
         that action was made on
     :param ipaddr: optional ip address from what the action was made
     :param sa: optional sqlalchemy session
 
     """
 
     if not sa:
         sa = meta.Session()
 
     try:
         if hasattr(user, 'user_id'):
             user_obj = user
         elif isinstance(user, basestring):
             user_obj = User.get_by_username(user)
         else:
             raise Exception('You have to provide user object or username')
 
         if hasattr(repo, 'repo_id'):
             repo_obj = Repository.get(repo.repo_id)
             repo_name = repo_obj.repo_name
         elif  isinstance(repo, basestring):
             repo_name = repo.lstrip('/')
             repo_obj = Repository.get_by_repo_name(repo_name)
         else:
             repo_obj = None
             repo_name = ''
 
         user_log = UserLog()
         user_log.user_id = user_obj.user_id
         user_log.action = safe_unicode(action)
 
         user_log.repository = repo_obj
         user_log.repository_name = repo_name
 
         user_log.action_date = datetime.datetime.now()
         user_log.user_ip = ipaddr
         sa.add(user_log)
 
         log.info(
             'Adding user %s, action %s on %s' % (user_obj, action,
                                                  safe_unicode(repo))
         )
         if commit:
             sa.commit()
     except:
         log.error(traceback.format_exc())
         raise
 
 
 def get_repos(path, recursive=False):
     """
     Scans given path for repos and return (name,(type,path)) tuple
 
     :param path: path to scan for repositories
     :param recursive: recursive search and return names with subdirs in front
     """
 
     # remove ending slash for better results
     path = path.rstrip(os.sep)
 
     def _get_repos(p):
         if not os.access(p, os.W_OK):
             return
         for dirpath in os.listdir(p):
             if os.path.isfile(os.path.join(p, dirpath)):
                 continue
             cur_path = os.path.join(p, dirpath)
             try:
                 scm_info = get_scm(cur_path)
                 yield scm_info[1].split(path, 1)[-1].lstrip(os.sep), scm_info
             except VCSError:
                 if not recursive:
                     continue
                 #check if this dir containts other repos for recursive scan
                 rec_path = os.path.join(p, dirpath)
                 if os.path.isdir(rec_path):
                     for inner_scm in _get_repos(rec_path):
                         yield inner_scm
 
     return _get_repos(path)
 
 
 def is_valid_repo(repo_name, base_path, scm=None):
     """
     Returns True if given path is a valid repository False otherwise.
     If scm param is given also compare if given scm is the same as expected
     from scm parameter
 
     :param repo_name:
     :param base_path:
     :param scm:
 
     :return True: if given path is a valid repository
     """
     full_path = os.path.join(safe_str(base_path), safe_str(repo_name))
 
     try:
         scm_ = get_scm(full_path)
         if scm:
             return scm_[0] == scm
         return True
     except VCSError:
         return False
 
 
 def is_valid_repos_group(repos_group_name, base_path):
     """
     Returns True if given path is a repos group False otherwise
 
     :param repo_name:
     :param base_path:
     """
     full_path = os.path.join(safe_str(base_path), safe_str(repos_group_name))
 
     # check if it's not a repo
     if is_valid_repo(repos_group_name, base_path):
         return False
 
     try:
         # we need to check bare git repos at higher level
         # since we might match branches/hooks/info/objects or possible
         # other things inside bare git repo
         get_scm(os.path.dirname(full_path))
         return False
     except VCSError:
         pass
 
     # check if it's a valid path
     if os.path.isdir(full_path):
         return True
 
     return False
 
 
 def ask_ok(prompt, retries=4, complaint='Yes or no, please!'):
     while True:
         ok = raw_input(prompt)
         if ok in ('y', 'ye', 'yes'):
             return True
         if ok in ('n', 'no', 'nop', 'nope'):
             return False
         retries = retries - 1
         if retries < 0:
             raise IOError
         print complaint
 
 #propagated from mercurial documentation
 ui_sections = ['alias', 'auth',
                 'decode/encode', 'defaults',
                 'diff', 'email',
                 'extensions', 'format',
                 'merge-patterns', 'merge-tools',
                 'hooks', 'http_proxy',
                 'smtp', 'patch',
                 'paths', 'profiling',
                 'server', 'trusted',
                 'ui', 'web', ]
 
 
 def make_ui(read_from='file', path=None, checkpaths=True, clear_session=True):
     """
     A function that will read python rc files or database
     and make an mercurial ui object from read options
 
     :param path: path to mercurial config file
     :param checkpaths: check the path
     :param read_from: read from 'file' or 'db'
     """
 
     baseui = ui.ui()
 
     # clean the baseui object
     baseui._ocfg = config.config()
     baseui._ucfg = config.config()
     baseui._tcfg = config.config()
 
     if read_from == 'file':
         if not os.path.isfile(path):
             log.debug('hgrc file is not present at %s skipping...' % path)
             return False
         log.debug('reading hgrc from %s' % path)
         cfg = config.config()
         cfg.read(path)
         for section in ui_sections:
             for k, v in cfg.items(section):
                 log.debug('settings ui from file[%s]%s:%s' % (section, k, v))
                 baseui.setconfig(section, k, v)
 
     elif read_from == 'db':
         sa = meta.Session()
         ret = sa.query(RhodeCodeUi)\
             .options(FromCache("sql_cache_short", "get_hg_ui_settings"))\
             .all()
 
         hg_ui = ret
         for ui_ in hg_ui:
             if ui_.ui_active:
                 log.debug('settings ui from db[%s]%s:%s', ui_.ui_section,
                           ui_.ui_key, ui_.ui_value)
                 baseui.setconfig(ui_.ui_section, ui_.ui_key, ui_.ui_value)
             if ui_.ui_key == 'push_ssl':
                 # force set push_ssl requirement to False, rhodecode
                 # handles that
                 baseui.setconfig(ui_.ui_section, ui_.ui_key, False)
         if clear_session:
             meta.Session.remove()
     return baseui
 
 
 def set_rhodecode_config(config):
     """
     Updates pylons config with new settings from database
 
     :param config:
     """
     hgsettings = RhodeCodeSetting.get_app_settings()
 
     for k, v in hgsettings.items():
         config[k] = v
 
 
 def invalidate_cache(cache_key, *args):
     """
     Puts cache invalidation task into db for
     further global cache invalidation
     """
 
     from rhodecode.model.scm import ScmModel
 
     if cache_key.startswith('get_repo_cached_'):
         name = cache_key.split('get_repo_cached_')[-1]
         ScmModel().mark_for_invalidation(name)
 
 
 def map_groups(path):
     """
     Given a full path to a repository, create all nested groups that this
     repo is inside. This function creates parent-child relationships between
     groups and creates default perms for all new groups.
 
     :param paths: full path to repository
     """
     sa = meta.Session()
     groups = path.split(Repository.url_sep())
     parent = None
     group = None
 
     # last element is repo in nested groups structure
     groups = groups[:-1]
     rgm = ReposGroupModel(sa)
     for lvl, group_name in enumerate(groups):
         group_name = '/'.join(groups[:lvl] + [group_name])
         group = RepoGroup.get_by_group_name(group_name)
         desc = '%s group' % group_name
 
         # skip folders that are now removed repos
         if REMOVED_REPO_PAT.match(group_name):
             break
 
         if group is None:
             log.debug('creating group level: %s group_name: %s' % (lvl,
                                                                    group_name))
             group = RepoGroup(group_name, parent)
             group.group_description = desc
             sa.add(group)
             rgm._create_default_perms(group)
             sa.flush()
         parent = group
     return group
 
 
 def repo2db_mapper(initial_repo_list, remove_obsolete=False,
                    install_git_hook=False):
     """
     maps all repos given in initial_repo_list, non existing repositories
     are created, if remove_obsolete is True it also check for db entries
     that are not in initial_repo_list and removes them.
 
     :param initial_repo_list: list of repositories found by scanning methods
     :param remove_obsolete: check for obsolete entries in database
     :param install_git_hook: if this is True, also check and install githook
         for a repo if missing
     """
     from rhodecode.model.repo import RepoModel
     from rhodecode.model.scm import ScmModel
     sa = meta.Session()
     rm = RepoModel()
     user = sa.query(User).filter(User.admin == True).first()
     if user is None:
         raise Exception('Missing administrative account !')
     added = []
 
 #    # clear cache keys
 #    log.debug("Clearing cache keys now...")
 #    CacheInvalidation.clear_cache()
 #    sa.commit()
 
     for name, repo in initial_repo_list.items():
         group = map_groups(name)
         db_repo = rm.get_by_repo_name(name)
         # found repo that is on filesystem not in RhodeCode database
         if not db_repo:
             log.info('repository %s not found creating now' % name)
             added.append(name)
             desc = (repo.description
                     if repo.description != 'unknown'
                     else '%s repository' % name)
             new_repo = rm.create_repo(
                 repo_name=name,
                 repo_type=repo.alias,
                 description=desc,
                 repos_group=getattr(group, 'group_id', None),
                 owner=user,
                 just_db=True
             )
             # we added that repo just now, and make sure it has githook
             # installed
             if new_repo.repo_type == 'git':
                 ScmModel().install_git_hook(new_repo.scm_instance)
         elif install_git_hook:
             if db_repo.repo_type == 'git':
                 ScmModel().install_git_hook(db_repo.scm_instance)
         # during starting install all cache keys for all repositories in the
         # system, this will register all repos and multiple instances
         key, _prefix, _org_key = CacheInvalidation._get_key(name)
         log.debug("Creating cache key for %s instance_id:`%s`" % (name, _prefix))
         CacheInvalidation._get_or_create_key(key, _prefix, _org_key, commit=False)
     sa.commit()
     removed = []
     if remove_obsolete:
         # remove from database those repositories that are not in the filesystem
         for repo in sa.query(Repository).all():
             if repo.repo_name not in initial_repo_list.keys():
                 log.debug("Removing non existing repository found in db `%s`" %
                           repo.repo_name)
                 try:
                     sa.delete(repo)
                     sa.commit()
                     removed.append(repo.repo_name)
                 except:
                     #don't hold further removals on error
                     log.error(traceback.format_exc())
                     sa.rollback()
 
     return added, removed
 
 
 # set cache regions for beaker so celery can utilise it
 def add_cache(settings):
     cache_settings = {'regions': None}
     for key in settings.keys():
         for prefix in ['beaker.cache.', 'cache.']:
             if key.startswith(prefix):
                 name = key.split(prefix)[1].strip()
                 cache_settings[name] = settings[key].strip()
     if cache_settings['regions']:
         for region in cache_settings['regions'].split(','):
             region = region.strip()
             region_settings = {}
             for key, value in cache_settings.items():
                 if key.startswith(region):
                     region_settings[key.split('.')[1]] = value
             region_settings['expire'] = int(region_settings.get('expire',
                                                                 60))
             region_settings.setdefault('lock_dir',
                                        cache_settings.get('lock_dir'))
             region_settings.setdefault('data_dir',
                                        cache_settings.get('data_dir'))
 
             if 'type' not in region_settings:
                 region_settings['type'] = cache_settings.get('type',
                                                              'memory')
             beaker.cache.cache_regions[region] = region_settings
 
 
 def load_rcextensions(root_path):
     import rhodecode
     from rhodecode.config import conf
 
     path = os.path.join(root_path, 'rcextensions', '__init__.py')
     if os.path.isfile(path):
         rcext = create_module('rc', path)
         EXT = rhodecode.EXTENSIONS = rcext
         log.debug('Found rcextensions now loading %s...' % rcext)
 
         # Additional mappings that are not present in the pygments lexers
         conf.LANGUAGES_EXTENSIONS_MAP.update(getattr(EXT, 'EXTRA_MAPPINGS', {}))
 
         #OVERRIDE OUR EXTENSIONS FROM RC-EXTENSIONS (if present)
 
         if getattr(EXT, 'INDEX_EXTENSIONS', []) != []:
             log.debug('settings custom INDEX_EXTENSIONS')
             conf.INDEX_EXTENSIONS = getattr(EXT, 'INDEX_EXTENSIONS', [])
 
         #ADDITIONAL MAPPINGS
         log.debug('adding extra into INDEX_EXTENSIONS')
         conf.INDEX_EXTENSIONS.extend(getattr(EXT, 'EXTRA_INDEX_EXTENSIONS', []))
 
 
 #==============================================================================
 # TEST FUNCTIONS AND CREATORS
 #==============================================================================
 def create_test_index(repo_location, config, full_index):
     """
     Makes default test index
 
     :param config: test config
     :param full_index:
     """
 
     from rhodecode.lib.indexers.daemon import WhooshIndexingDaemon
     from rhodecode.lib.pidlock import DaemonLock, LockHeld
 
     repo_location = repo_location
 
     index_location = os.path.join(config['app_conf']['index_dir'])
     if not os.path.exists(index_location):
         os.makedirs(index_location)
 
     try:
         l = DaemonLock(file_=jn(dn(index_location), 'make_index.lock'))
         WhooshIndexingDaemon(index_location=index_location,
                              repo_location=repo_location)\
             .run(full_index=full_index)
         l.release()
     except LockHeld:
         pass
 
 
 def create_test_env(repos_test_path, config):
     """
     Makes a fresh database and
     install test repository into tmp dir
     """
     from rhodecode.lib.db_manage import DbManage
     from rhodecode.tests import HG_REPO, GIT_REPO, TESTS_TMP_PATH
 
     # PART ONE create db
     dbconf = config['sqlalchemy.db1.url']
     log.debug('making test db %s' % dbconf)
 
     # create test dir if it doesn't exist
     if not os.path.isdir(repos_test_path):
         log.debug('Creating testdir %s' % repos_test_path)
         os.makedirs(repos_test_path)
 
     dbmanage = DbManage(log_sql=True, dbconf=dbconf, root=config['here'],
                         tests=True)
     dbmanage.create_tables(override=True)
     dbmanage.create_settings(dbmanage.config_prompt(repos_test_path))
     dbmanage.create_default_user()
     dbmanage.admin_prompt()
     dbmanage.create_permissions()
     dbmanage.populate_default_permissions()
     Session().commit()
     # PART TWO make test repo
     log.debug('making test vcs repositories')
 
     idx_path = config['app_conf']['index_dir']
     data_path = config['app_conf']['cache_dir']
 
     #clean index and data
     if idx_path and os.path.exists(idx_path):
         log.debug('remove %s' % idx_path)
         shutil.rmtree(idx_path)
 
     if data_path and os.path.exists(data_path):
         log.debug('remove %s' % data_path)
         shutil.rmtree(data_path)
 
     #CREATE DEFAULT TEST REPOS
     cur_dir = dn(dn(abspath(__file__)))
     tar = tarfile.open(jn(cur_dir, 'tests', "vcs_test_hg.tar.gz"))
     tar.extractall(jn(TESTS_TMP_PATH, HG_REPO))
     tar.close()
 
     cur_dir = dn(dn(abspath(__file__)))
     tar = tarfile.open(jn(cur_dir, 'tests', "vcs_test_git.tar.gz"))
     tar.extractall(jn(TESTS_TMP_PATH, GIT_REPO))
     tar.close()
 
     #LOAD VCS test stuff
     from rhodecode.tests.vcs import setup_package
     setup_package()
 
 
 #==============================================================================
 # PASTER COMMANDS
 #==============================================================================
 class BasePasterCommand(Command):
     """
     Abstract Base Class for paster commands.
 
     The celery commands are somewhat aggressive about loading
     celery.conf, and since our module sets the `CELERY_LOADER`
     environment variable to our loader, we have to bootstrap a bit and
     make sure we've had a chance to load the pylons config off of the
     command line, otherwise everything fails.
     """
     min_args = 1
     min_args_error = "Please provide a paster config file as an argument."
     takes_config_file = 1
     requires_config_file = True
 
     def notify_msg(self, msg, log=False):
         """Make a notification to user, additionally if logger is passed
         it logs this action using given logger
 
         :param msg: message that will be printed to user
         :param log: logging instance, to use to additionally log this message
 
         """
         if log and isinstance(log, logging):
             log(msg)
 
     def run(self, args):
         """
         Overrides Command.run
 
         Checks for a config file argument and loads it.
         """
         if len(args) < self.min_args:
             raise BadCommand(
                 self.min_args_error % {'min_args': self.min_args,
                                        'actual_args': len(args)})
 
         # Decrement because we're going to lob off the first argument.
         # @@ This is hacky
         self.min_args -= 1
         self.bootstrap_config(args[0])
         self.update_parser()
         return super(BasePasterCommand, self).run(args[1:])
 
     def update_parser(self):
         """
         Abstract method.  Allows for the class's parser to be updated
         before the superclass's `run` method is called.  Necessary to
         allow options/arguments to be passed through to the underlying
         celery command.
         """
         raise NotImplementedError("Abstract Method.")
 
     def bootstrap_config(self, conf):
         """
         Loads the pylons configuration.
         """
         from pylons import config as pylonsconfig
 
         self.path_to_ini_file = os.path.realpath(conf)
         conf = paste.deploy.appconfig('config:' + self.path_to_ini_file)
         pylonsconfig.init_app(conf.global_conf, conf.local_conf)
+
+
+def check_git_version():
+    """
+    Checks what version of git is installed in system, and issues a warning
+    if it's to old for RhodeCode to properly work.
+    """
+    import subprocess
+    from distutils.version import StrictVersion
+    from rhodecode import BACKENDS
+
+    p = subprocess.Popen('git --version', shell=True,
+                         stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    stdout, stderr = p.communicate()
+    ver = (stdout.split(' ')[-1] or '').strip() or '0.0.0'
+    try:
+        _ver = StrictVersion(ver)
+    except:
+        _ver = StrictVersion('0.0.0')
+        stderr = traceback.format_exc()
+
+    req_ver = '1.7.4'
+    to_old_git = False
+    if  _ver <= StrictVersion(req_ver):
+        to_old_git = True
+
+    if 'git' in BACKENDS:
+        log.debug('GIT version detected: %s' % stdout)
+        if stderr:
+            log.warning('Unable to detect git version org error was:%r' % stderr)
+        elif to_old_git:
+            log.warning('RhodeCode detected git version %s, which is to old '
+                        'for the system to function properly make sure '
+                        'it is at least in version %s' % (ver, req_ver))
+    return _ver
  No newline at end of file