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import cStringIO
import getpass
import errno
import os
import shutil
import sys
import tempfile
import urlparse
import urllib
import collections
class SubversionRepoCanNotReplay(Exception):
"""Exception raised when the svn server is too old to have replay.
"""
class SubversionRepoCanNotDiff(Exception):
"""Exception raised when the svn API diff3() command cannot be used
"""
class SubversionConnectionException(Exception):
"""Exception raised when a generic error occurs when connecting to a
repository.
"""
# Default chunk size used in fetch_history_at_paths() and revisions().
chunk_size = 1000
def parse_url(url, user=None, passwd=None):
"""Parse a URL and return a tuple (username, password, url)
"""
scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
if '@' in netloc:
userpass, netloc = netloc.split('@')
if not user and not passwd:
if ':' in userpass:
user, passwd = userpass.split(':')
else:
user, passwd = userpass, ''
user, passwd = urllib.unquote(user), urllib.unquote(passwd)
if user and scheme == 'svn+ssh':
netloc = '@'.join((user, netloc, ))
url = urlparse.urlunparse((scheme, netloc, path, params, query, fragment))
return (user or None, passwd or None, url)
class Revision(tuple):
"""Wrapper for a Subversion revision.
Derives from tuple in an attempt to minimise the memory footprint.
"""
def __new__(self, revnum, author, message, date, paths, strip_path=''):
_paths = {}
if paths:
for p in paths:
_paths[p[len(strip_path):]] = paths[p]
return tuple.__new__(self,
(revnum, author, message, date, _paths))
@property
def revnum(self):
return self[0]
@property
def author(self):
return self[1]
@property
def message(self):
return self[2]
@property
def date(self):
return self[3]
@property
def paths(self):
return self[4]
def __str__(self):
return 'r%d by %s' % (self.revnum, self.author)
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