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# Copyright (C) 2006 Jelmer Vernooij <jelmer@samba.org>
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from bzrlib.errors import (NoSuchFile, NotBranchError, TransportNotPossible,
FileExists)
from bzrlib.trace import mutter
from bzrlib.transport import Transport
import bzrlib.urlutils as urlutils
from cStringIO import StringIO
import os
from tempfile import mktemp
from svn.core import SubversionException, Pool
import svn.ra
import svn.core
import svn.client
# Some older versions of the Python bindings need to be
# explicitly initialized
svn.ra.initialize()
svn_config = svn.core.svn_config_get_config(None)
def need_lock(unbound):
def locked(self, *args, **kwargs):
self.lock()
try:
return unbound(self, *args, **kwargs)
finally:
self.unlock()
locked.__doc__ = unbound.__doc__
locked.__name__ = unbound.__name__
return locked
def _create_auth_baton(pool):
"""Create a Subversion authentication baton. """
# Give the client context baton a suite of authentication
# providers.h
providers = [
svn.client.get_simple_provider(pool),
svn.client.get_username_provider(pool),
svn.client.get_ssl_client_cert_file_provider(pool),
svn.client.get_ssl_client_cert_pw_file_provider(pool),
svn.client.get_ssl_server_trust_file_provider(pool),
]
return svn.core.svn_auth_open(providers, pool)
# Don't run any tests on SvnTransport as it is not intended to be
# a full implementation of Transport
def get_test_permutations():
return []
def get_svn_ra_transport(bzr_transport):
"""Obtain corresponding SvnRaTransport for a stock Bazaar transport."""
if isinstance(bzr_transport, SvnRaTransport):
return bzr_transport
return SvnRaTransport(bzr_transport.base)
def bzr_to_svn_url(url):
"""Convert a Bazaar URL to a URL understood by Subversion.
This will possibly remove the svn+ prefix.
"""
if (url.startswith("svn+http://") or
url.startswith("svn+file://") or
url.startswith("svn+https://")):
url = url[len("svn+"):] # Skip svn+
# The SVN libraries don't like trailing slashes...
return url.rstrip('/')
class SvnRaTransport(Transport):
"""Fake transport for Subversion-related namespaces.
This implements just as much of Transport as is necessary
to fool Bazaar-NG. """
def __init__(self, url=""):
self.pool = Pool()
self.is_locked = False
bzr_url = url
self.svn_url = bzr_to_svn_url(url)
Transport.__init__(self, bzr_url)
self._client = svn.client.create_context(self.pool)
self._client.auth_baton = _create_auth_baton(self.pool)
self._client.config = svn_config
try:
mutter('opening SVN RA connection to %r' % self.svn_url)
self._ra = svn.client.open_ra_session(self.svn_url.encode('utf8'),
self._client, self.pool)
except SubversionException, (msg, num):
if num in (svn.core.SVN_ERR_RA_ILLEGAL_URL, \
svn.core.SVN_ERR_RA_LOCAL_REPOS_OPEN_FAILED, \
svn.core.SVN_ERR_BAD_URL):
raise NotBranchError(path=url)
raise
def lock(self):
assert (not self.is_locked)
self.is_locked = True
def unlock(self):
assert self.is_locked
self.is_locked = False
def has(self, relpath):
"""See Transport.has()."""
# TODO: Raise TransportNotPossible here instead and
# catch it in bzrdir.py
return False
def get(self, relpath):
"""See Transport.get()."""
# TODO: Raise TransportNotPossible here instead and
# catch it in bzrdir.py
raise NoSuchFile(path=relpath)
def stat(self, relpath):
"""See Transport.stat()."""
raise TransportNotPossible('stat not supported on Subversion')
@need_lock
def get_uuid(self):
mutter('svn get-uuid')
return svn.ra.get_uuid(self._ra)
@need_lock
def get_repos_root(self):
mutter("svn get-repos-root")
return svn.ra.get_repos_root(self._ra)
@need_lock
def get_latest_revnum(self):
mutter("svn get-latest-revnum")
return svn.ra.get_latest_revnum(self._ra)
@need_lock
def do_switch(self, switch_rev, switch_target, recurse, switch_url, *args, **kwargs):
mutter('svn switch -r %d %r -> %r' % (switch_rev, switch_target, switch_url))
return svn.ra.do_switch(self._ra, switch_rev, switch_target, recurse, switch_url, *args, **kwargs)
@need_lock
def get_log(self, path, from_revnum, to_revnum, *args, **kwargs):
mutter('svn log %r:%r %r' % (from_revnum, to_revnum, path))
return svn.ra.get_log(self._ra, [path], from_revnum, to_revnum, *args, **kwargs)
@need_lock
def reparent(self, url):
url = url.rstrip("/")
if url == self.svn_url:
return
self.base = url
self.svn_url = url
if hasattr(svn.ra, 'reparent'):
mutter('svn reparent %r' % url)
svn.ra.reparent(self._ra, url, self.pool)
else:
self._ra = svn.client.open_ra_session(self.svn_url.encode('utf8'),
self._client, self.pool)
@need_lock
def get_dir(self, path, revnum, pool=None, kind=False):
mutter("svn ls -r %d '%r'" % (revnum, path))
path = path.rstrip("/")
# ra_dav backends fail with strange errors if the path starts with a
# slash while other backends don't.
assert len(path) == 0 or path[0] != "/"
if hasattr(svn.ra, 'get_dir2'):
fields = 0
if kind:
fields += svn.core.SVN_DIRENT_KIND
return svn.ra.get_dir2(self._ra, path, revnum, fields)
else:
return svn.ra.get_dir(self._ra, path, revnum)
def list_dir(self, relpath):
assert len(relpath) == 0 or relpath[0] != "/"
if relpath == ".":
relpath = ""
try:
(dirents, _, _) = self.get_dir(relpath.rstrip("/"),
self.get_latest_revnum())
except SubversionException, (msg, num):
if num == svn.core.SVN_ERR_FS_NOT_DIRECTORY:
raise NoSuchFile(relpath)
raise
return dirents.keys()
@need_lock
def check_path(self, path, revnum, *args, **kwargs):
assert len(path) == 0 or path[0] != "/"
mutter("svn check_path -r%d %s" % (revnum, path))
return svn.ra.check_path(self._ra, path, revnum, *args, **kwargs)
@need_lock
def mkdir(self, relpath, mode=None):
path = "%s/%s" % (self.svn_url, relpath)
try:
svn.client.mkdir([path.encode("utf-8")], self._client)
except SubversionException, (msg, num):
if num == svn.core.SVN_ERR_FS_NOT_FOUND:
raise NoSuchFile(path)
if num == svn.core.SVN_ERR_FS_ALREADY_EXISTS:
raise FileExists(path)
raise
@need_lock
def do_update(self, revnum, path, *args, **kwargs):
mutter('svn update -r %r %r' % (revnum, path))
return svn.ra.do_update(self._ra, revnum, path, *args, **kwargs)
@need_lock
def get_commit_editor(self, *args, **kwargs):
return svn.ra.get_commit_editor(self._ra, *args, **kwargs)
def listable(self):
"""See Transport.listable().
"""
return True
# There is no real way to do locking directly on the transport
# nor is there a need to as the remote server will take care of
# locking
class PhonyLock:
def unlock(self):
pass
def lock_write(self, relpath):
"""See Transport.lock_write()."""
return self.PhonyLock()
def lock_read(self, relpath):
"""See Transport.lock_read()."""
return self.PhonyLock()
def clone(self, offset=None):
"""See Transport.clone()."""
if offset is None:
return SvnRaTransport(self.base)
return SvnRaTransport(urlutils.join(self.base, offset))
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