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