Mercurial > hg
view hgext/largefiles/remotestore.py @ 30141:c01acee367ec
largefiles: when setting/clearing x bit on largefiles, don't change other bits
It is only the X bit that it matters to copy from the standin to the largefile
in the working directory. While it generally doesn't do any harm to copy the
whole mode, it is also "wrong" to copy more than the X bit we care about. It
can make a difference if someone should try to handle largefiles differently,
such as marking them read-only.
Thus, do similar to what utils.setflags does and set the X bit where there are
R bits and obey umask.
author | Mads Kiilerich <madski@unity3d.com> |
---|---|
date | Sat, 08 Oct 2016 00:59:40 +0200 |
parents | 0ccab84f9630 |
children | 3dcaf1c4e90d |
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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''' from __future__ import absolute_import from mercurial.i18n import _ from mercurial import ( error, util, wireproto, ) from . import ( basestore, lfutil, localstore, ) urlerr = util.urlerr urlreq = util.urlreq class remotestore(basestore.basestore): '''a largefile store accessed over a network''' def __init__(self, ui, repo, url): super(remotestore, self).__init__(ui, repo, url) self._lstore = localstore.localstore(self.ui, self.repo, self.repo) 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 urlerr.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 urlerr.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 _hashesavailablelocally(self, hashes): existslocallymap = self._lstore.exists(hashes) localhashes = [hash for hash in hashes if existslocallymap[hash]] return localhashes def _verifyfiles(self, contents, filestocheck): failed = False expectedhashes = [expectedhash for cset, filename, expectedhash in filestocheck] localhashes = self._hashesavailablelocally(expectedhashes) stats = self._stat([expectedhash for expectedhash in expectedhashes if expectedhash not in localhashes]) for cset, filename, expectedhash in filestocheck: if expectedhash in localhashes: filetocheck = (cset, filename, expectedhash) verifyresult = self._lstore._verifyfiles(contents, [filetocheck]) if verifyresult: failed = True else: stat = stats[expectedhash] if stat: if stat == 1: self.ui.warn( _('changeset %s: %s: contents differ\n') % (cset, filename)) failed = True elif stat == 2: self.ui.warn( _('changeset %s: %s missing\n') % (cset, filename)) failed = True else: raise RuntimeError('verify failed: unexpected response ' 'from statlfile (%r)' % stat) return failed def batch(self): '''Support for remote batching.''' return wireproto.remotebatch(self) def _put(self, hash, fd): '''Put file with the given hash in the remote store.''' raise NotImplementedError('abstract method') def _get(self, hash): '''Get file with the given hash from the remote store.''' raise NotImplementedError('abstract method') def _stat(self, hashes): '''Get information about availability of files specified by hashes in the remote store. Return dictionary mapping hashes to return code where 0 means that file is available, other values if not.''' raise NotImplementedError('abstract method')