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# Copyright 2010-2011 Fog Creek Software
# Copyright 2010-2011 Unity Technologies
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''remote largefile store; the base class for wirestore'''
import urllib2
from mercurial import util, wireproto, error
from mercurial.i18n import _
import lfutil
import basestore
class remotestore(basestore.basestore):
'''a largefile store accessed over a network'''
def __init__(self, ui, repo, url):
super(remotestore, self).__init__(ui, repo, url)
def put(self, source, hash):
if self.sendfile(source, hash):
raise error.Abort(
_('remotestore: could not put %s to remote store %s')
% (source, util.hidepassword(self.url)))
self.ui.debug(
_('remotestore: put %s to remote store %s\n')
% (source, util.hidepassword(self.url)))
def exists(self, hashes):
return dict((h, s == 0) for (h, s) in # dict-from-generator
self._stat(hashes).iteritems())
def sendfile(self, filename, hash):
self.ui.debug('remotestore: sendfile(%s, %s)\n' % (filename, hash))
fd = None
try:
fd = lfutil.httpsendfile(self.ui, filename)
return self._put(hash, fd)
except IOError as e:
raise error.Abort(
_('remotestore: could not open file %s: %s')
% (filename, str(e)))
finally:
if fd:
fd.close()
def _getfile(self, tmpfile, filename, hash):
try:
chunks = self._get(hash)
except urllib2.HTTPError as e:
# 401s get converted to error.Aborts; everything else is fine being
# turned into a StoreError
raise basestore.StoreError(filename, hash, self.url, str(e))
except urllib2.URLError as e:
# This usually indicates a connection problem, so don't
# keep trying with the other files... they will probably
# all fail too.
raise error.Abort('%s: %s' %
(util.hidepassword(self.url), e.reason))
except IOError as e:
raise basestore.StoreError(filename, hash, self.url, str(e))
return lfutil.copyandhash(chunks, tmpfile)
def _verifyfile(self, cctx, cset, contents, standin, verified):
filename = lfutil.splitstandin(standin)
if not filename:
return False
fctx = cctx[standin]
key = (filename, fctx.filenode())
if key in verified:
return False
verified.add(key)
expecthash = fctx.data()[0:40]
stat = self._stat([expecthash])[expecthash]
if not stat:
return False
elif stat == 1:
self.ui.warn(
_('changeset %s: %s: contents differ\n')
% (cset, filename))
return True # failed
elif stat == 2:
self.ui.warn(
_('changeset %s: %s missing\n')
% (cset, filename))
return True # failed
else:
raise RuntimeError('verify failed: unexpected response from '
'statlfile (%r)' % stat)
def batch(self):
'''Support for remote batching.'''
return wireproto.remotebatch(self)