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# -*- coding: utf-8 -*-
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"""
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rhodecode.model.scm
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~~~~~~~~~~~~~~~~~~~
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Scm model for RhodeCode
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:created_on: Apr 9, 2010
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:author: marcink
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:copyright: (C) 2009-2011 Marcin Kuzminski <marcin@python-works.com>
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:license: GPLv3, see COPYING for more details.
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"""
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import time
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import traceback
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import logging
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from mercurial import ui
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from sqlalchemy.exc import DatabaseError
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from sqlalchemy.orm import make_transient
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from beaker.cache import cache_region, region_invalidate
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from vcs import get_backend
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from vcs.utils.helpers import get_scm
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from vcs.exceptions import RepositoryError, VCSError
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from vcs.utils.lazy import LazyProperty
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from vcs.nodes import FileNode
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from rhodecode import BACKENDS
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from rhodecode.lib import helpers as h
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from rhodecode.lib.auth import HasRepoPermissionAny
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from rhodecode.lib.utils import get_repos as get_filesystem_repos, make_ui, \
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action_logger
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from rhodecode.model import BaseModel
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from rhodecode.model.user import UserModel
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from rhodecode.model.repo import RepoModel
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from rhodecode.model.db import Repository, RhodeCodeUi, CacheInvalidation, \
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UserFollowing, UserLog
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from rhodecode.model.caching_query import FromCache
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log = logging.getLogger(__name__)
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class UserTemp(object):
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def __init__(self, user_id):
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self.user_id = user_id
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def __repr__(self):
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return "<%s('id:%s')>" % (self.__class__.__name__, self.user_id)
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class RepoTemp(object):
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def __init__(self, repo_id):
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self.repo_id = repo_id
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def __repr__(self):
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return "<%s('id:%s')>" % (self.__class__.__name__, self.repo_id)
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class ScmModel(BaseModel):
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"""Generic Scm Model
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"""
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@LazyProperty
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def repos_path(self):
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"""Get's the repositories root path from database
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"""
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q = self.sa.query(RhodeCodeUi).filter(RhodeCodeUi.ui_key == '/').one()
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return q.ui_value
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def repo_scan(self, repos_path=None):
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"""Listing of repositories in given path. This path should not be a
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repository itself. Return a dictionary of repository objects
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:param repos_path: path to directory containing repositories
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"""
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log.info('scanning for repositories in %s', repos_path)
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if repos_path is None:
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repos_path = self.repos_path
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baseui = make_ui('db')
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repos_list = {}
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for name, path in get_filesystem_repos(repos_path, recursive=True):
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try:
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if name in repos_list:
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raise RepositoryError('Duplicate repository name %s '
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'found in %s' % (name, path))
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else:
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klass = get_backend(path[0])
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if path[0] == 'hg' and path[0] in BACKENDS.keys():
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repos_list[name] = klass(path[1], baseui=baseui)
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if path[0] == 'git' and path[0] in BACKENDS.keys():
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repos_list[name] = klass(path[1])
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except OSError:
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continue
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return repos_list
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def get_repos(self, all_repos=None):
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"""
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Get all repos from db and for each repo create it's
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backend instance and fill that backed with information from database
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:param all_repos: list of repository names as strings
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give specific repositories list, good for filtering
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"""
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if all_repos is None:
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repos = self.sa.query(Repository)\
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.filter(Repository.group_id == None)\
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.order_by(Repository.repo_name).all()
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all_repos = [r.repo_name for r in repos]
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#get the repositories that should be invalidated
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invalidation_list = [str(x.cache_key) for x in \
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self.sa.query(CacheInvalidation.cache_key)\
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.filter(CacheInvalidation.cache_active == False)\
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.all()]
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for r_name in all_repos:
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r_dbr = self.get(r_name, invalidation_list)
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if r_dbr is not None:
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repo, dbrepo = r_dbr
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if repo is None or dbrepo is None:
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log.error('Repository "%s" looks somehow corrupted '
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'fs-repo:%s,db-repo:%s both values should be '
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'present', r_name, repo, dbrepo)
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continue
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last_change = repo.last_change
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tip = h.get_changeset_safe(repo, 'tip')
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tmp_d = {}
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tmp_d['name'] = dbrepo.repo_name
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tmp_d['name_sort'] = tmp_d['name'].lower()
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tmp_d['description'] = dbrepo.description
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tmp_d['description_sort'] = tmp_d['description']
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tmp_d['last_change'] = last_change
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tmp_d['last_change_sort'] = time.mktime(last_change \
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.timetuple())
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tmp_d['tip'] = tip.raw_id
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tmp_d['tip_sort'] = tip.revision
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tmp_d['rev'] = tip.revision
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tmp_d['contact'] = dbrepo.user.full_contact
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tmp_d['contact_sort'] = tmp_d['contact']
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tmp_d['owner_sort'] = tmp_d['contact']
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tmp_d['repo_archives'] = list(repo._get_archives())
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tmp_d['last_msg'] = tip.message
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tmp_d['repo'] = repo
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tmp_d['dbrepo'] = dbrepo.get_dict()
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tmp_d['dbrepo_fork'] = dbrepo.fork.get_dict() if dbrepo.fork \
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else {}
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yield tmp_d
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def get(self, repo_name, invalidation_list=None, retval='all'):
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"""Returns a tuple of Repository,DbRepository,
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Get's repository from given name, creates BackendInstance and
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propagates it's data from database with all additional information
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:param repo_name:
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:param invalidation_list: if a invalidation list is given the get
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method should not manually check if this repository needs
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invalidation and just invalidate the repositories in list
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:param retval: string specifing what to return one of 'repo','dbrepo',
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'all'if repo or dbrepo is given it'll just lazy load chosen type
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and return None as the second
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"""
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if not HasRepoPermissionAny('repository.read', 'repository.write',
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'repository.admin')(repo_name, 'get repo check'):
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return
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#======================================================================
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# CACHE FUNCTION
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#======================================================================
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@cache_region('long_term')
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def _get_repo(repo_name):
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repo_path = os.path.join(self.repos_path, repo_name)
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try:
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alias = get_scm(repo_path)[0]
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log.debug('Creating instance of %s repository', alias)
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backend = get_backend(alias)
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except VCSError:
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log.error(traceback.format_exc())
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log.error('Perhaps this repository is in db and not in '
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'filesystem run rescan repositories with '
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'"destroy old data " option from admin panel')
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return
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if alias == 'hg':
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repo = backend(repo_path, create=False, baseui=make_ui('db'))
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#skip hidden web repository
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if repo._get_hidden():
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return
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else:
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repo = backend(repo_path, create=False)
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return repo
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pre_invalidate = True
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dbinvalidate = False
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if invalidation_list is not None:
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pre_invalidate = repo_name in invalidation_list
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if pre_invalidate:
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#this returns object to invalidate
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invalidate = self._should_invalidate(repo_name)
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if invalidate:
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log.info('invalidating cache for repository %s', repo_name)
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region_invalidate(_get_repo, None, repo_name)
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self._mark_invalidated(invalidate)
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dbinvalidate = True
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r, dbr = None, None
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if retval == 'repo' or 'all':
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r = _get_repo(repo_name)
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if retval == 'dbrepo' or 'all':
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dbr = RepoModel().get_full(repo_name, cache=True,
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invalidate=dbinvalidate)
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return r, dbr
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def mark_for_invalidation(self, repo_name):
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"""Puts cache invalidation task into db for
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further global cache invalidation
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:param repo_name: this repo that should invalidation take place
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"""
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log.debug('marking %s for invalidation', repo_name)
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cache = self.sa.query(CacheInvalidation)\
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.filter(CacheInvalidation.cache_key == repo_name).scalar()
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if cache:
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#mark this cache as inactive
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cache.cache_active = False
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else:
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log.debug('cache key not found in invalidation db -> creating one')
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cache = CacheInvalidation(repo_name)
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try:
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self.sa.add(cache)
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self.sa.commit()
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except (DatabaseError,):
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log.error(traceback.format_exc())
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self.sa.rollback()
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def toggle_following_repo(self, follow_repo_id, user_id):
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f = self.sa.query(UserFollowing)\
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.filter(UserFollowing.follows_repo_id == follow_repo_id)\
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.filter(UserFollowing.user_id == user_id).scalar()
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if f is not None:
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try:
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self.sa.delete(f)
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self.sa.commit()
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action_logger(UserTemp(user_id),
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'stopped_following_repo',
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RepoTemp(follow_repo_id))
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return
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except:
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log.error(traceback.format_exc())
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self.sa.rollback()
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raise
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try:
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f = UserFollowing()
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f.user_id = user_id
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f.follows_repo_id = follow_repo_id
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self.sa.add(f)
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self.sa.commit()
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action_logger(UserTemp(user_id),
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'started_following_repo',
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RepoTemp(follow_repo_id))
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except:
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log.error(traceback.format_exc())
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self.sa.rollback()
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raise
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def toggle_following_user(self, follow_user_id, user_id):
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f = self.sa.query(UserFollowing)\
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.filter(UserFollowing.follows_user_id == follow_user_id)\
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.filter(UserFollowing.user_id == user_id).scalar()
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if f is not None:
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try:
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self.sa.delete(f)
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self.sa.commit()
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return
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except:
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log.error(traceback.format_exc())
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self.sa.rollback()
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raise
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try:
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f = UserFollowing()
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f.user_id = user_id
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f.follows_user_id = follow_user_id
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self.sa.add(f)
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self.sa.commit()
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except:
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log.error(traceback.format_exc())
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self.sa.rollback()
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raise
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def is_following_repo(self, repo_name, user_id, cache=False):
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r = self.sa.query(Repository)\
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.filter(Repository.repo_name == repo_name).scalar()
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f = self.sa.query(UserFollowing)\
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.filter(UserFollowing.follows_repository == r)\
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.filter(UserFollowing.user_id == user_id).scalar()
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return f is not None
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def is_following_user(self, username, user_id, cache=False):
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u = UserModel(self.sa).get_by_username(username)
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f = self.sa.query(UserFollowing)\
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.filter(UserFollowing.follows_user == u)\
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.filter(UserFollowing.user_id == user_id).scalar()
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return f is not None
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def get_followers(self, repo_id):
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if not isinstance(repo_id, int):
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repo_id = getattr(Repository.by_repo_name(repo_id), 'repo_id')
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return self.sa.query(UserFollowing)\
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.filter(UserFollowing.follows_repo_id == repo_id).count()
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def get_forks(self, repo_id):
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if not isinstance(repo_id, int):
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repo_id = getattr(Repository.by_repo_name(repo_id), 'repo_id')
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return self.sa.query(Repository)\
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.filter(Repository.fork_id == repo_id).count()
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def pull_changes(self, repo_name, username):
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repo, dbrepo = self.get(repo_name, retval='all')
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try:
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extras = {'ip': '',
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'username': username,
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'action': 'push_remote',
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'repository': repo_name}
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#inject ui extra param to log this action via push logger
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for k, v in extras.items():
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repo._repo.ui.setconfig('rhodecode_extras', k, v)
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repo.pull(dbrepo.clone_uri)
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self.mark_for_invalidation(repo_name)
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except:
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log.error(traceback.format_exc())
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raise
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def commit_change(self, repo, repo_name, cs, user, author, message, content,
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f_path):
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if repo.alias == 'hg':
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from vcs.backends.hg import MercurialInMemoryChangeset as IMC
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elif repo.alias == 'git':
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from vcs.backends.git import GitInMemoryChangeset as IMC
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# decoding here will force that we have proper encoded values
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# in any other case this will throw exceptions and deny commit
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content = content.encode('utf8')
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message = message.encode('utf8')
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path = f_path.encode('utf8')
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author = author.encode('utf8')
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m = IMC(repo)
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m.change(FileNode(path, content))
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tip = m.commit(message=message,
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author=author,
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parents=[cs], branch=cs.branch)
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new_cs = tip.short_id
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action = 'push_local:%s' % new_cs
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action_logger(user, action, repo_name)
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self.mark_for_invalidation(repo_name)
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def get_unread_journal(self):
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return self.sa.query(UserLog).count()
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def _should_invalidate(self, repo_name):
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"""Looks up database for invalidation signals for this repo_name
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:param repo_name:
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"""
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ret = self.sa.query(CacheInvalidation)\
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.filter(CacheInvalidation.cache_key == repo_name)\
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.filter(CacheInvalidation.cache_active == False)\
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.scalar()
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return ret
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def _mark_invalidated(self, cache_key):
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""" Marks all occurrences of cache to invalidation as already
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invalidated
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:param cache_key:
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"""
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if cache_key:
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log.debug('marking %s as already invalidated', cache_key)
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try:
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cache_key.cache_active = True
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self.sa.add(cache_key)
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self.sa.commit()
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except (DatabaseError,):
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log.error(traceback.format_exc())
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self.sa.rollback()
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|
