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#!/usr/bin/env python
# IVLE - Informatics Virtual Learning Environment
# Copyright (C) 2007-2009 The University of Melbourne
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""Refresh parts of the filesystem that are generated from the database.
In particular:
- missing user jails are created
- missing user and group Subversion repositories are created
- the Subversion password file is updated
- the Subversion authorisation files are rewritten
"""
import datetime
import logging
import os
import os.path
import shutil
from ivle.config import Config
from ivle.database import get_store, ProjectGroup, User
import ivle.makeuser
logging.basicConfig(
format='%(asctime)s %(levelname)s %(message)s',
level=logging.INFO)
JUNK_DIRECTORY_SUFFIX = (
'-removed-%s' % datetime.datetime.now().strftime('%Y%m%d-%H%M%S'))
def get_junk_dir(path):
return os.path.normpath(path) + JUNK_DIRECTORY_SUFFIX
def junk(parent, name):
"""Move the named directory into a junk directory alongside the parent."""
if not os.path.exists(get_junk_dir(parent)):
os.makedirs(get_junk_dir(parent))
shutil.move(
os.path.join(parent, name),
os.path.join(get_junk_dir(parent), name))
def refresh_filesystem(config, store):
active_users = store.find(User, state=u'enabled').order_by(User.login)
logging.info("Refreshing active user jails.")
for user in active_users:
ivle.makeuser.make_jail(user, config)
present_jails = set(
login for login in os.listdir(config['paths']['jails']['src'])
if not (login.startswith('__') and login.endswith('__')))
logging.info("Junking extra user jails...")
for jail in present_jails - set(user.login for user in active_users):
logging.info(' - %s' % jail)
junk(config['paths']['jails']['src'], jail)
repo_root = config['paths']['svn']['repo_path']
logging.info("Creating missing Subversion user repositories.")
present_user_repos = set(
login for login in os.listdir(os.path.join(repo_root, 'users')))
for repo in set(user.login for user in active_users) - present_user_repos:
logging.info(' - %s' % repo)
ivle.makeuser.make_svn_repo(
os.path.join(repo_root, 'users', repo), throw_on_error=True)
logging.info("Junking extra Subversion user repositories.")
for repo in present_user_repos - set(user.login for user in active_users):
logging.info(' - %s' % repo)
junk(os.path.join(repo_root, 'users'), repo)
logging.info("Creating missing Subversion group repositories.")
present_group_repos = set(
group for group in os.listdir(os.path.join(repo_root, 'groups')))
active_group_identifiers = set("_".join(
[group.project_set.offering.subject.short_name,
group.project_set.offering.semester.year,
group.project_set.offering.semester.url_name,
group.name]) for group in store.find(ProjectGroup))
for repo in active_group_identifiers - present_group_repos:
logging.info(' - %s' % repo)
ivle.makeuser.make_svn_repo(
os.path.join(repo_root, 'groups', repo), throw_on_error=True)
logging.info("Junking extra Subversion user repositories.")
for repo in present_group_repos - active_group_identifiers:
logging.info(' - %s' % repo)
junk(os.path.join(repo_root, 'groups'), repo)
logging.info("Rebuild Subversion password file.")
for user in store.find(User, state=u'enabled'):
ivle.makeuser.make_svn_auth(
store, user.login, config, throw_on_error=True)
logging.info("Rebuilding Subversion user configuration.")
ivle.makeuser.rebuild_svn_config(store, config)
logging.info("Rebuilding Subversion group configuration.")
ivle.makeuser.rebuild_svn_group_config(store, config)
if __name__ == '__main__':
config = Config()
store = get_store(config)
refresh_filesystem(config, store)
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