sapling/hgext/largefiles/remotestore.py
Gregory Szorc 5380dea2a7 global: mass rewrite to use modern exception syntax
Python 2.6 introduced the "except type as instance" syntax, replacing
the "except type, instance" syntax that came before. Python 3 dropped
support for the latter syntax. Since we no longer support Python 2.4 or
2.5, we have no need to continue supporting the "except type, instance".

This patch mass rewrites the exception syntax to be Python 2.6+ and
Python 3 compatible.

This patch was produced by running `2to3 -f except -w -n .`.
2015-06-23 22:20:08 -07:00

99 lines
3.3 KiB
Python

# 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
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 util.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 util.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 util.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 util.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)