Mercurial > hg
view hgext/largefiles/localstore.py @ 23904:d251da5e0e84
transaction: include backup file in the "undo" transaction
Once the transaction is closed, we now write transaction related data for
possible future undo. For now, we only do it for full file "backup" because
their were not handle at all in that case. In the future, we could move all the
current logic to set undo up (that currently exists in localrepository) inside
transaction itself, but it is not strictly requires to solve the current
situation.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Fri, 16 Jan 2015 18:34:14 -0800 |
parents | 266b5fb72f26 |
children | c082a4756ed7 |
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# Copyright 2009-2010 Gregory P. Ward # Copyright 2009-2010 Intelerad Medical Systems Incorporated # 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. '''store class for local filesystem''' from mercurial.i18n import _ import lfutil import basestore class localstore(basestore.basestore): '''localstore first attempts to grab files out of the store in the remote Mercurial repository. Failing that, it attempts to grab the files from the user cache.''' def __init__(self, ui, repo, remote): self.remote = remote.local() super(localstore, self).__init__(ui, repo, self.remote.url()) def put(self, source, hash): if lfutil.instore(self.remote, hash): return lfutil.link(source, lfutil.storepath(self.remote, hash)) def exists(self, hashes): retval = {} for hash in hashes: retval[hash] = lfutil.instore(self.remote, hash) return retval def _getfile(self, tmpfile, filename, hash): path = lfutil.findfile(self.remote, hash) if not path: raise basestore.StoreError(filename, hash, self.url, _("can't get file locally")) fd = open(path, 'rb') try: return lfutil.copyandhash(fd, tmpfile) finally: fd.close() 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 expecthash = fctx.data()[0:40] storepath = lfutil.storepath(self.remote, expecthash) verified.add(key) if not lfutil.instore(self.remote, expecthash): self.ui.warn( _('changeset %s: %s references missing %s\n') % (cset, filename, storepath)) return True # failed if contents: actualhash = lfutil.hashfile(storepath) if actualhash != expecthash: self.ui.warn( _('changeset %s: %s references corrupted %s\n') % (cset, filename, storepath)) return True # failed return False