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# IVLE - Informatics Virtual Learning Environment
# Copyright (C) 2008 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
# Module: Subversion utilities
# Author: William Grant
# Date: 16/07/2008
import stat
import pysvn
def revision_from_string(r_str):
if r_str is None:
pass
elif r_str == "HEAD":
return pysvn.Revision( pysvn.opt_revision_kind.head )
elif r_str == "WORKING":
return pysvn.Revision( pysvn.opt_revision_kind.working )
elif r_str == "BASE":
return pysvn.Revision( pysvn.opt_revision_kind.base )
else:
# Is it a number?
try:
r = int(r_str)
return pysvn.Revision( pysvn.opt_revision_kind.number, r)
except:
pass
return None
def revision_exists(client, path, revision):
try:
client.list(path, revision=revision)
return True
except pysvn.ClientError:
return False
class PysvnListStatWrapper:
'''Wrap a pysvn listing object to look somewhat like a result of
os.stat.
'''
def __init__(self, pysvn_list):
self.pysvn_list = pysvn_list
def __getattr__(self, name):
try:
if name == 'st_mode':
# Special magic needed.
if self.pysvn_list.kind == pysvn.node_kind.dir:
return stat.S_IFDIR
else:
return stat.S_IFREG
return value
return getattr(self.pysvn_list,
{'st_mtime': 'time',
'st_size': 'size',
}[name])
except AttributeError, KeyError:
raise AttributeError, name
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