Mercurial > hg
diff hgext/largefiles/localstore.py @ 15168:cfccd3bee7b3
hgext: add largefiles extension
This code has a number of contributors and a complicated history prior to its
introduction that can be seen by visiting:
https://developers.kilnhg.com/Repo/Kiln/largefiles/largefiles
http://hg.gerg.ca/hg-bfiles
and looking at the included copyright notices and contributors list.
author | various |
---|---|
date | Sat, 24 Sep 2011 17:35:45 +0200 |
parents | |
children | 6e809bb4f969 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hgext/largefiles/localstore.py Sat Sep 24 17:35:45 2011 +0200 @@ -0,0 +1,71 @@ +# 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.''' + +import os + +from mercurial import util +from mercurial.i18n import _ + +import lfutil +import basestore + +class localstore(basestore.basestore): + '''Because there is a system wide cache, the local store always uses that + cache. Since the cache is updated elsewhere, we can just read from it here + as if it were the store.''' + + def __init__(self, ui, repo, remote): + url = os.path.join(remote.path, '.hg', lfutil.longname) + super(localstore, self).__init__(ui, repo, util.expandpath(url)) + + def put(self, source, filename, hash): + '''Any file that is put must already be in the system wide cache so do + nothing.''' + return + + def exists(self, hash): + return lfutil.insystemcache(self.repo.ui, hash) + + def _getfile(self, tmpfile, filename, hash): + if lfutil.insystemcache(self.ui, hash): + return lfutil.systemcachepath(self.ui, hash) + raise basestore.StoreError(filename, hash, '', + _("Can't get file locally")) + + 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] + verified.add(key) + if not lfutil.insystemcache(self.ui, expecthash): + self.ui.warn( + _('changeset %s: %s missing\n' + ' (looked for hash %s)\n') + % (cset, filename, expecthash)) + return True # failed + + if contents: + storepath = lfutil.systemcachepath(self.ui, expecthash) + actualhash = lfutil.hashfile(storepath) + if actualhash != expecthash: + self.ui.warn( + _('changeset %s: %s: contents differ\n' + ' (%s:\n' + ' expected hash %s,\n' + ' but got %s)\n') + % (cset, filename, storepath, expecthash, actualhash)) + return True # failed + return False