lfs: enable the final download count status message

At this point, I think all of the core commands are prefetching, except grep and
verify.  Verify will need some special handling, in case the revlogs are
corrupt.

Grep has an issue that still needs to be debugged, but we probably need to give
the behavior some thought too- it would be a shame to have to download
everything in order to search.  I think the benefit of having this info for all
commands outweighs extra printing in a command that is arguably not well
behaved in this context anyway.

hgext/lfs/blobstore.py

@@ -1,581 +1,580 b''
 # blobstore.py - local and remote (speaking Git-LFS protocol) blob storages
 #
 # Copyright 2017 Facebook, Inc.
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import errno
 import hashlib
 import json
 import os
 import re
 import socket
 
 from mercurial.i18n import _
 
 from mercurial import (
     error,
     pathutil,
     pycompat,
     url as urlmod,
     util,
     vfs as vfsmod,
     worker,
 )
 
 from ..largefiles import lfutil
 
 # 64 bytes for SHA256
 _lfsre = re.compile(br'\A[a-f0-9]{64}\Z')
 
 class lfsvfs(vfsmod.vfs):
     def join(self, path):
         """split the path at first two characters, like: XX/XXXXX..."""
         if not _lfsre.match(path):
             raise error.ProgrammingError('unexpected lfs path: %s' % path)
         return super(lfsvfs, self).join(path[0:2], path[2:])
 
     def walk(self, path=None, onerror=None):
         """Yield (dirpath, [], oids) tuple for blobs under path
 
         Oids only exist in the root of this vfs, so dirpath is always ''.
         """
         root = os.path.normpath(self.base)
         # when dirpath == root, dirpath[prefixlen:] becomes empty
         # because len(dirpath) < prefixlen.
         prefixlen = len(pathutil.normasprefix(root))
         oids = []
 
         for dirpath, dirs, files in os.walk(self.reljoin(self.base, path or ''),
                                             onerror=onerror):
             dirpath = dirpath[prefixlen:]
 
             # Silently skip unexpected files and directories
             if len(dirpath) == 2:
                 oids.extend([dirpath + f for f in files
                              if _lfsre.match(dirpath + f)])
 
         yield ('', [], oids)
 
 class nullvfs(lfsvfs):
     def __init__(self):
         pass
 
     def exists(self, oid):
         return False
 
     def read(self, oid):
         # store.read() calls into here if the blob doesn't exist in its
         # self.vfs.  Raise the same error as a normal vfs when asked to read a
         # file that doesn't exist.  The only difference is the full file path
         # isn't available in the error.
         raise IOError(errno.ENOENT, '%s: No such file or directory' % oid)
 
     def walk(self, path=None, onerror=None):
         return ('', [], [])
 
     def write(self, oid, data):
         pass
 
 class filewithprogress(object):
     """a file-like object that supports __len__ and read.
 
     Useful to provide progress information for how many bytes are read.
     """
 
     def __init__(self, fp, callback):
         self._fp = fp
         self._callback = callback # func(readsize)
         fp.seek(0, os.SEEK_END)
         self._len = fp.tell()
         fp.seek(0)
 
     def __len__(self):
         return self._len
 
     def read(self, size):
         if self._fp is None:
             return b''
         data = self._fp.read(size)
         if data:
             if self._callback:
                 self._callback(len(data))
         else:
             self._fp.close()
             self._fp = None
         return data
 
 class local(object):
     """Local blobstore for large file contents.
 
     This blobstore is used both as a cache and as a staging area for large blobs
     to be uploaded to the remote blobstore.
     """
 
     def __init__(self, repo):
         fullpath = repo.svfs.join('lfs/objects')
         self.vfs = lfsvfs(fullpath)
 
         if repo.ui.configbool('experimental', 'lfs.disableusercache'):
             self.cachevfs = nullvfs()
         else:
             usercache = lfutil._usercachedir(repo.ui, 'lfs')
             self.cachevfs = lfsvfs(usercache)
         self.ui = repo.ui
 
     def open(self, oid):
         """Open a read-only file descriptor to the named blob, in either the
         usercache or the local store."""
         # The usercache is the most likely place to hold the file.  Commit will
         # write to both it and the local store, as will anything that downloads
         # the blobs.  However, things like clone without an update won't
         # populate the local store.  For an init + push of a local clone,
         # the usercache is the only place it _could_ be.  If not present, the
         # missing file msg here will indicate the local repo, not the usercache.
         if self.cachevfs.exists(oid):
             return self.cachevfs(oid, 'rb')
 
         return self.vfs(oid, 'rb')
 
     def download(self, oid, src):
         """Read the blob from the remote source in chunks, verify the content,
         and write to this local blobstore."""
         sha256 = hashlib.sha256()
 
         with self.vfs(oid, 'wb', atomictemp=True) as fp:
             for chunk in util.filechunkiter(src, size=1048576):
                 fp.write(chunk)
                 sha256.update(chunk)
 
             realoid = sha256.hexdigest()
             if realoid != oid:
                 raise LfsCorruptionError(_('corrupt remote lfs object: %s')
                                          % oid)
 
         self._linktousercache(oid)
 
     def write(self, oid, data):
         """Write blob to local blobstore.
 
         This should only be called from the filelog during a commit or similar.
         As such, there is no need to verify the data.  Imports from a remote
         store must use ``download()`` instead."""
         with self.vfs(oid, 'wb', atomictemp=True) as fp:
             fp.write(data)
 
         self._linktousercache(oid)
 
     def _linktousercache(self, oid):
         # XXX: should we verify the content of the cache, and hardlink back to
         # the local store on success, but truncate, write and link on failure?
         if (not self.cachevfs.exists(oid)
             and not isinstance(self.cachevfs, nullvfs)):
             self.ui.note(_('lfs: adding %s to the usercache\n') % oid)
             lfutil.link(self.vfs.join(oid), self.cachevfs.join(oid))
 
     def read(self, oid, verify=True):
         """Read blob from local blobstore."""
         if not self.vfs.exists(oid):
             blob = self._read(self.cachevfs, oid, verify)
 
             # Even if revlog will verify the content, it needs to be verified
             # now before making the hardlink to avoid propagating corrupt blobs.
             # Don't abort if corruption is detected, because `hg verify` will
             # give more useful info about the corruption- simply don't add the
             # hardlink.
             if verify or hashlib.sha256(blob).hexdigest() == oid:
                 self.ui.note(_('lfs: found %s in the usercache\n') % oid)
                 lfutil.link(self.cachevfs.join(oid), self.vfs.join(oid))
         else:
             self.ui.note(_('lfs: found %s in the local lfs store\n') % oid)
             blob = self._read(self.vfs, oid, verify)
         return blob
 
     def _read(self, vfs, oid, verify):
         """Read blob (after verifying) from the given store"""
         blob = vfs.read(oid)
         if verify:
             _verify(oid, blob)
         return blob
 
     def verify(self, oid):
         """Indicate whether or not the hash of the underlying file matches its
         name."""
         sha256 = hashlib.sha256()
 
         with self.open(oid) as fp:
             for chunk in util.filechunkiter(fp, size=1048576):
                 sha256.update(chunk)
 
         return oid == sha256.hexdigest()
 
     def has(self, oid):
         """Returns True if the local blobstore contains the requested blob,
         False otherwise."""
         return self.cachevfs.exists(oid) or self.vfs.exists(oid)
 
 class _gitlfsremote(object):
 
     def __init__(self, repo, url):
         ui = repo.ui
         self.ui = ui
         baseurl, authinfo = url.authinfo()
         self.baseurl = baseurl.rstrip('/')
         useragent = repo.ui.config('experimental', 'lfs.user-agent')
         if not useragent:
             useragent = 'git-lfs/2.3.4 (Mercurial %s)' % util.version()
         self.urlopener = urlmod.opener(ui, authinfo, useragent)
         self.retry = ui.configint('lfs', 'retry')
 
     def writebatch(self, pointers, fromstore):
         """Batch upload from local to remote blobstore."""
         self._batch(_deduplicate(pointers), fromstore, 'upload')
 
     def readbatch(self, pointers, tostore):
         """Batch download from remote to local blostore."""
         self._batch(_deduplicate(pointers), tostore, 'download')
 
     def _batchrequest(self, pointers, action):
         """Get metadata about objects pointed by pointers for given action
 
         Return decoded JSON object like {'objects': [{'oid': '', 'size': 1}]}
         See https://github.com/git-lfs/git-lfs/blob/master/docs/api/batch.md
         """
         objects = [{'oid': p.oid(), 'size': p.size()} for p in pointers]
         requestdata = json.dumps({
             'objects': objects,
             'operation': action,
         })
         batchreq = util.urlreq.request('%s/objects/batch' % self.baseurl,
                                        data=requestdata)
         batchreq.add_header('Accept', 'application/vnd.git-lfs+json')
         batchreq.add_header('Content-Type', 'application/vnd.git-lfs+json')
         try:
             rsp = self.urlopener.open(batchreq)
             rawjson = rsp.read()
         except util.urlerr.httperror as ex:
             raise LfsRemoteError(_('LFS HTTP error: %s (action=%s)')
                                  % (ex, action))
         try:
             response = json.loads(rawjson)
         except ValueError:
             raise LfsRemoteError(_('LFS server returns invalid JSON: %s')
                                  % rawjson)
 
         if self.ui.debugflag:
             self.ui.debug('Status: %d\n' % rsp.status)
             # lfs-test-server and hg serve return headers in different order
             self.ui.debug('%s\n'
                           % '\n'.join(sorted(str(rsp.info()).splitlines())))
 
             if 'objects' in response:
                 response['objects'] = sorted(response['objects'],
                                              key=lambda p: p['oid'])
             self.ui.debug('%s\n'
                           % json.dumps(response, indent=2,
                                        separators=('', ': '), sort_keys=True))
 
         return response
 
     def _checkforservererror(self, pointers, responses, action):
         """Scans errors from objects
 
         Raises LfsRemoteError if any objects have an error"""
         for response in responses:
             # The server should return 404 when objects cannot be found. Some
             # server implementation (ex. lfs-test-server)  does not set "error"
             # but just removes "download" from "actions". Treat that case
             # as the same as 404 error.
             if 'error' not in response:
                 if (action == 'download'
                     and action not in response.get('actions', [])):
                     code = 404
                 else:
                     continue
             else:
                 # An error dict without a code doesn't make much sense, so
                 # treat as a server error.
                 code = response.get('error').get('code', 500)
 
             ptrmap = {p.oid(): p for p in pointers}
             p = ptrmap.get(response['oid'], None)
             if p:
                 filename = getattr(p, 'filename', 'unknown')
                 errors = {
                     404: 'The object does not exist',
                     410: 'The object was removed by the owner',
                     422: 'Validation error',
                     500: 'Internal server error',
                 }
                 msg = errors.get(code, 'status code %d' % code)
                 raise LfsRemoteError(_('LFS server error for "%s": %s')
                                      % (filename, msg))
             else:
                 raise LfsRemoteError(
                     _('LFS server error. Unsolicited response for oid %s')
                     % response['oid'])
 
     def _extractobjects(self, response, pointers, action):
         """extract objects from response of the batch API
 
         response: parsed JSON object returned by batch API
         return response['objects'] filtered by action
         raise if any object has an error
         """
         # Scan errors from objects - fail early
         objects = response.get('objects', [])
         self._checkforservererror(pointers, objects, action)
 
         # Filter objects with given action. Practically, this skips uploading
         # objects which exist in the server.
         filteredobjects = [o for o in objects if action in o.get('actions', [])]
 
         return filteredobjects
 
     def _basictransfer(self, obj, action, localstore):
         """Download or upload a single object using basic transfer protocol
 
         obj: dict, an object description returned by batch API
         action: string, one of ['upload', 'download']
         localstore: blobstore.local
 
         See https://github.com/git-lfs/git-lfs/blob/master/docs/api/\
         basic-transfers.md
         """
         oid = pycompat.bytestr(obj['oid'])
 
         href = pycompat.bytestr(obj['actions'][action].get('href'))
         headers = obj['actions'][action].get('header', {}).items()
 
         request = util.urlreq.request(href)
         if action == 'upload':
             # If uploading blobs, read data from local blobstore.
             if not localstore.verify(oid):
                 raise error.Abort(_('detected corrupt lfs object: %s') % oid,
                                   hint=_('run hg verify'))
             request.data = filewithprogress(localstore.open(oid), None)
             request.get_method = lambda: 'PUT'
             request.add_header('Content-Type', 'application/octet-stream')
 
         for k, v in headers:
             request.add_header(k, v)
 
         response = b''
         try:
             req = self.urlopener.open(request)
 
             if self.ui.debugflag:
                 self.ui.debug('Status: %d\n' % req.status)
                 # lfs-test-server and hg serve return headers in different order
                 self.ui.debug('%s\n'
                               % '\n'.join(sorted(str(req.info()).splitlines())))
 
             if action == 'download':
                 # If downloading blobs, store downloaded data to local blobstore
                 localstore.download(oid, req)
             else:
                 while True:
                     data = req.read(1048576)
                     if not data:
                         break
                     response += data
                 if response:
                     self.ui.debug('lfs %s response: %s' % (action, response))
         except util.urlerr.httperror as ex:
             if self.ui.debugflag:
                 self.ui.debug('%s: %s\n' % (oid, ex.read()))
             raise LfsRemoteError(_('HTTP error: %s (oid=%s, action=%s)')
                                  % (ex, oid, action))
 
     def _batch(self, pointers, localstore, action):
         if action not in ['upload', 'download']:
             raise error.ProgrammingError('invalid Git-LFS action: %s' % action)
 
         response = self._batchrequest(pointers, action)
         objects = self._extractobjects(response, pointers, action)
         total = sum(x.get('size', 0) for x in objects)
         sizes = {}
         for obj in objects:
             sizes[obj.get('oid')] = obj.get('size', 0)
         topic = {'upload': _('lfs uploading'),
                  'download': _('lfs downloading')}[action]
         if len(objects) > 1:
             self.ui.note(_('lfs: need to transfer %d objects (%s)\n')
                          % (len(objects), util.bytecount(total)))
         self.ui.progress(topic, 0, total=total)
         def transfer(chunk):
             for obj in chunk:
                 objsize = obj.get('size', 0)
                 if self.ui.verbose:
                     if action == 'download':
                         msg = _('lfs: downloading %s (%s)\n')
                     elif action == 'upload':
                         msg = _('lfs: uploading %s (%s)\n')
                     self.ui.note(msg % (obj.get('oid'),
                                  util.bytecount(objsize)))
                 retry = self.retry
                 while True:
                     try:
                         self._basictransfer(obj, action, localstore)
                         yield 1, obj.get('oid')
                         break
                     except socket.error as ex:
                         if retry > 0:
                             self.ui.note(
                                 _('lfs: failed: %r (remaining retry %d)\n')
                                 % (ex, retry))
                             retry -= 1
                             continue
                         raise
 
         # Until https multiplexing gets sorted out
         if self.ui.configbool('experimental', 'lfs.worker-enable'):
             oids = worker.worker(self.ui, 0.1, transfer, (),
                                  sorted(objects, key=lambda o: o.get('oid')))
         else:
             oids = transfer(sorted(objects, key=lambda o: o.get('oid')))
 
         processed = 0
         blobs = 0
         for _one, oid in oids:
             processed += sizes[oid]
             blobs += 1
             self.ui.progress(topic, processed, total=total)
             self.ui.note(_('lfs: processed: %s\n') % oid)
         self.ui.progress(topic, pos=None, total=total)
 
         if blobs > 0:
             if action == 'upload':
                 self.ui.status(_('lfs: uploaded %d files (%s)\n')
                                % (blobs, util.bytecount(processed)))
-            # TODO: coalesce the download requests, and comment this in
-            #elif action == 'download':
-            #    self.ui.status(_('lfs: downloaded %d files (%s)\n')
-            #                   % (blobs, util.bytecount(processed)))
+            elif action == 'download':
+                self.ui.status(_('lfs: downloaded %d files (%s)\n')
+                               % (blobs, util.bytecount(processed)))
 
     def __del__(self):
         # copied from mercurial/httppeer.py
         urlopener = getattr(self, 'urlopener', None)
         if urlopener:
             for h in urlopener.handlers:
                 h.close()
                 getattr(h, "close_all", lambda : None)()
 
 class _dummyremote(object):
     """Dummy store storing blobs to temp directory."""
 
     def __init__(self, repo, url):
         fullpath = repo.vfs.join('lfs', url.path)
         self.vfs = lfsvfs(fullpath)
 
     def writebatch(self, pointers, fromstore):
         for p in _deduplicate(pointers):
             content = fromstore.read(p.oid(), verify=True)
             with self.vfs(p.oid(), 'wb', atomictemp=True) as fp:
                 fp.write(content)
 
     def readbatch(self, pointers, tostore):
         for p in _deduplicate(pointers):
             with self.vfs(p.oid(), 'rb') as fp:
                 tostore.download(p.oid(), fp)
 
 class _nullremote(object):
     """Null store storing blobs to /dev/null."""
 
     def __init__(self, repo, url):
         pass
 
     def writebatch(self, pointers, fromstore):
         pass
 
     def readbatch(self, pointers, tostore):
         pass
 
 class _promptremote(object):
     """Prompt user to set lfs.url when accessed."""
 
     def __init__(self, repo, url):
         pass
 
     def writebatch(self, pointers, fromstore, ui=None):
         self._prompt()
 
     def readbatch(self, pointers, tostore, ui=None):
         self._prompt()
 
     def _prompt(self):
         raise error.Abort(_('lfs.url needs to be configured'))
 
 _storemap = {
     'https': _gitlfsremote,
     'http': _gitlfsremote,
     'file': _dummyremote,
     'null': _nullremote,
     None: _promptremote,
 }
 
 def _deduplicate(pointers):
     """Remove any duplicate oids that exist in the list"""
     reduced = util.sortdict()
     for p in pointers:
         reduced[p.oid()] = p
     return reduced.values()
 
 def _verify(oid, content):
     realoid = hashlib.sha256(content).hexdigest()
     if realoid != oid:
         raise LfsCorruptionError(_('detected corrupt lfs object: %s') % oid,
                                  hint=_('run hg verify'))
 
 def remote(repo, remote=None):
     """remotestore factory. return a store in _storemap depending on config
 
     If ``lfs.url`` is specified, use that remote endpoint.  Otherwise, try to
     infer the endpoint, based on the remote repository using the same path
     adjustments as git.  As an extension, 'http' is supported as well so that
     ``hg serve`` works out of the box.
 
     https://github.com/git-lfs/git-lfs/blob/master/docs/api/server-discovery.md
     """
     lfsurl = repo.ui.config('lfs', 'url')
     url = util.url(lfsurl or '')
     if lfsurl is None:
         if remote:
             path = remote
         elif util.safehasattr(repo, '_subtoppath'):
             # The pull command sets this during the optional update phase, which
             # tells exactly where the pull originated, whether 'paths.default'
             # or explicit.
             path = repo._subtoppath
         else:
             # TODO: investigate 'paths.remote:lfsurl' style path customization,
             # and fall back to inferring from 'paths.remote' if unspecified.
             path = repo.ui.config('paths', 'default') or ''
 
         defaulturl = util.url(path)
 
         # TODO: support local paths as well.
         # TODO: consider the ssh -> https transformation that git applies
         if defaulturl.scheme in (b'http', b'https'):
             if defaulturl.path and defaulturl.path[:-1] != b'/':
                 defaulturl.path += b'/'
             defaulturl.path = (defaulturl.path or b'') + b'.git/info/lfs'
 
             url = util.url(bytes(defaulturl))
             repo.ui.note(_('lfs: assuming remote store: %s\n') % url)
 
     scheme = url.scheme
     if scheme not in _storemap:
         raise error.Abort(_('lfs: unknown url scheme: %s') % scheme)
     return _storemap[scheme](repo, url)
 
 class LfsRemoteError(error.RevlogError):
     pass
 
 class LfsCorruptionError(error.Abort):
     """Raised when a corrupt blob is detected, aborting an operation
 
     It exists to allow specialized handling on the server side."""

tests/test-lfs-serve-access.t

@@ -1,332 +1,333 b''
 #require serve no-reposimplestore
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > lfs=
   > [lfs]
   > track=all()
   > [web]
   > push_ssl = False
   > allow-push = *
   > EOF
 
 Serving LFS files can experimentally be turned off.  The long term solution is
 to support the 'verify' action in both client and server, so that the server can
 tell the client to store files elsewhere.
 
   $ hg init server
   $ hg --config "lfs.usercache=$TESTTMP/servercache" \
   >    --config experimental.lfs.serve=False -R server serve -d \
   >    -p $HGPORT --pid-file=hg.pid -A $TESTTMP/access.log -E $TESTTMP/errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
 Uploads fail...
 
   $ hg init client
   $ echo 'this-is-an-lfs-file' > client/lfs.bin
   $ hg -R client ci -Am 'initial commit'
   adding lfs.bin
   $ hg -R client push http://localhost:$HGPORT
   pushing to http://localhost:$HGPORT/
   searching for changes
   abort: LFS HTTP error: HTTP Error 400: no such method: .git (action=upload)!
   [255]
 
 ... so do a local push to make the data available.  Remove the blob from the
 default cache, so it attempts to download.
   $ hg --config "lfs.usercache=$TESTTMP/servercache" \
   >    --config "lfs.url=null://" \
   >    -R client push -q server
   $ mv `hg config lfs.usercache` $TESTTMP/servercache
 
 Downloads fail...
 
   $ hg clone http://localhost:$HGPORT httpclone
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   new changesets 525251863cad
   updating to branch default
   abort: LFS HTTP error: HTTP Error 400: no such method: .git (action=download)!
   [255]
 
   $ $PYTHON $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
 
   $ cat $TESTTMP/access.log $TESTTMP/errors.log
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D525251863cad618e55d483555f3d00a2ca99597e x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 400 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 400 - (glob)
 
 Blob URIs are correct when --prefix is used
 
   $ rm -f $TESTTMP/access.log $TESTTMP/errors.log
   $ hg --config "lfs.usercache=$TESTTMP/servercache" -R server serve -d \
   >    -p $HGPORT --pid-file=hg.pid --prefix=subdir/mount/point \
   >    -A $TESTTMP/access.log -E $TESTTMP/errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
   $ hg clone --debug http://localhost:$HGPORT/subdir/mount/point cloned2
   using http://localhost:$HGPORT/subdir/mount/point
   sending capabilities command
   query 1; heads
   sending batch command
   requesting all changes
   sending getbundle command
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
   adding changesets
   add changeset 525251863cad
   adding manifests
   adding file changes
   adding lfs.bin revisions
   added 1 changesets with 1 changes to 1 files
   calling hook pretxnchangegroup.lfs: hgext.lfs.checkrequireslfs
   bundle2-input-part: total payload size 648
   bundle2-input-part: "listkeys" (params: 1 mandatory) supported
   bundle2-input-part: "phase-heads" supported
   bundle2-input-part: total payload size 24
   bundle2-input-part: "cache:rev-branch-cache" supported
   bundle2-input-part: total payload size 39
   bundle2-input-bundle: 3 parts total
   checking for updated bookmarks
   updating the branch cache
   new changesets 525251863cad
   updating to branch default
   resolving manifests
    branchmerge: False, force: False, partial: False
    ancestor: 000000000000, local: 000000000000+, remote: 525251863cad
   lfs: assuming remote store: http://localhost:$HGPORT/subdir/mount/point/.git/info/lfs
   Status: 200
   Content-Length: 371
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value
   {
     "objects": [
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/subdir/mount/point/.hg/lfs/objects/f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e"
           }
         }
         "oid": "f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e"
         "size": 20
       }
     ]
     "transfer": "basic"
   }
   lfs: downloading f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e (20 bytes)
   Status: 200
   Content-Length: 20
   Content-Type: application/octet-stream
   Date: $HTTP_DATE$
   Server: testing stub value
   lfs: adding f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e to the usercache
   lfs: processed: f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e
+  lfs: downloaded 1 files (20 bytes)
    lfs.bin: remote created -> g
   getting lfs.bin
   lfs: found f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e in the local lfs store
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ $PYTHON $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
 
   $ cat $TESTTMP/access.log $TESTTMP/errors.log
   $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /subdir/mount/point/.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point/.hg/lfs/objects/f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e HTTP/1.1" 200 - (glob)
 
   $ cat >> $TESTTMP/lfsstoreerror.py <<EOF
   > import errno
   > from hgext.lfs import blobstore
   > 
   > _numverifies = 0
   > _readerr = True
   > 
   > def reposetup(ui, repo):
   >     # Nothing to do with a remote repo
   >     if not repo.local():
   >         return
   > 
   >     store = repo.svfs.lfslocalblobstore
   >     class badstore(store.__class__):
   >         def download(self, oid, src):
   >             '''Called in the server to handle reading from the client in a
   >             PUT request.'''
   >             origread = src.read
   >             def _badread(nbytes):
   >                 # Simulate bad data/checksum failure from the client
   >                 return b'0' * len(origread(nbytes))
   >             src.read = _badread
   >             super(badstore, self).download(oid, src)
   > 
   >         def _read(self, vfs, oid, verify):
   >             '''Called in the server to read data for a GET request, and then
   >             calls self._verify() on it before returning.'''
   >             global _readerr
   >             # One time simulation of a read error
   >             if _readerr:
   >                 _readerr = False
   >                 raise IOError(errno.EIO, '%s: I/O error' % oid)
   >             # Simulate corrupt content on client download
   >             blobstore._verify(oid, 'dummy content')
   > 
   >         def verify(self, oid):
   >             '''Called in the server to populate the Batch API response,
   >             letting the client re-upload if the file is corrupt.'''
   >             # Fail verify in Batch API for one clone command and one push
   >             # command with an IOError.  Then let it through to access other
   >             # functions.  Checksum failure is tested elsewhere.
   >             global _numverifies
   >             _numverifies += 1
   >             if _numverifies <= 2:
   >                 raise IOError(errno.EIO, '%s: I/O error' % oid)
   >             return super(badstore, self).verify(oid)
   > 
   >     store.__class__ = badstore
   > EOF
 
   $ rm -rf `hg config lfs.usercache`
   $ rm -f $TESTTMP/access.log $TESTTMP/errors.log
   $ hg --config "lfs.usercache=$TESTTMP/servercache" \
   >    --config extensions.lfsstoreerror=$TESTTMP/lfsstoreerror.py \
   >    -R server serve -d \
   >    -p $HGPORT1 --pid-file=hg.pid -A $TESTTMP/access.log -E $TESTTMP/errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
 Test an I/O error in localstore.verify() (Batch API) with GET
 
   $ hg clone http://localhost:$HGPORT1 httpclone2
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   new changesets 525251863cad
   updating to branch default
   abort: LFS server error for "lfs.bin": Internal server error!
   [255]
 
 Test an I/O error in localstore.verify() (Batch API) with PUT
 
   $ echo foo > client/lfs.bin
   $ hg -R client ci -m 'mod lfs'
   $ hg -R client push http://localhost:$HGPORT1
   pushing to http://localhost:$HGPORT1/
   searching for changes
   abort: LFS server error for "unknown": Internal server error!
   [255]
 TODO: figure out how to associate the file name in the error above
 
 Test a bad checksum sent by the client in the transfer API
 
   $ hg -R client push http://localhost:$HGPORT1
   pushing to http://localhost:$HGPORT1/
   searching for changes
   abort: HTTP error: HTTP Error 422: corrupt blob (oid=b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c, action=upload)!
   [255]
 
   $ echo 'test lfs file' > server/lfs3.bin
   $ hg --config experimental.lfs.disableusercache=True \
   >    -R server ci -Aqm 'another lfs file'
   $ hg -R client pull -q http://localhost:$HGPORT1
 
 Test an I/O error during the processing of the GET request
 
   $ hg --config lfs.url=http://localhost:$HGPORT1/.git/info/lfs \
   >    -R client update -r tip
   abort: HTTP error: HTTP Error 500: Internal Server Error (oid=276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d, action=download)!
   [255]
 
 Test a checksum failure during the processing of the GET request
 
   $ hg --config lfs.url=http://localhost:$HGPORT1/.git/info/lfs \
   >    -R client update -r tip
   abort: HTTP error: HTTP Error 422: corrupt blob (oid=276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d, action=download)!
   [255]
 
   $ $PYTHON $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
 
   $ cat $TESTTMP/access.log
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D392c05922088bacf8e68a6939b480017afbf245d x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D392c05922088bacf8e68a6939b480017afbf245d x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "PUT /.hg/lfs/objects/b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c HTTP/1.1" 422 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D392c05922088bacf8e68a6939b480017afbf245d x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=525251863cad618e55d483555f3d00a2ca99597e&heads=506bf3d83f78c54b89e81c6411adee19fdf02156+525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d HTTP/1.1" 500 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d HTTP/1.1" 422 - (glob)
 
   $ grep -v '  File "' $TESTTMP/errors.log
   $LOCALIP - - [$ERRDATE$] HG error:  Exception happened while processing request '/.git/info/lfs/objects/batch': (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  Traceback (most recent call last): (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      verifies = store.verify(oid) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      raise IOError(errno.EIO, '%s: I/O error' % oid) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  IOError: [Errno 5] f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e: I/O error (glob)
   $LOCALIP - - [$ERRDATE$] HG error:   (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  Exception happened while processing request '/.git/info/lfs/objects/batch': (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  Traceback (most recent call last): (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      verifies = store.verify(oid) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      raise IOError(errno.EIO, '%s: I/O error' % oid) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  IOError: [Errno 5] b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c: I/O error (glob)
   $LOCALIP - - [$ERRDATE$] HG error:   (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  Exception happened while processing request '/.hg/lfs/objects/b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c': (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  Traceback (most recent call last): (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      localstore.download(oid, req.bodyfh) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      super(badstore, self).download(oid, src) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      % oid) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  LfsCorruptionError: corrupt remote lfs object: b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c (glob)
   $LOCALIP - - [$ERRDATE$] HG error:   (glob)
   $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d': (glob)
   Traceback (most recent call last):
       self.do_write()
       self.do_hgweb()
       for chunk in self.server.application(env, self._start_response):
       for r in self._runwsgi(req, res, repo):
       rctx, req, res, self.check_perm)
       return func(*(args + a), **kw)
       lambda perm:
       res.setbodybytes(localstore.read(oid))
       blob = self._read(self.vfs, oid, verify)
       raise IOError(errno.EIO, '%s: I/O error' % oid)
   IOError: [Errno 5] 276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d: I/O error
   
   $LOCALIP - - [$ERRDATE$] HG error:  Exception happened while processing request '/.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d': (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  Traceback (most recent call last): (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      res.setbodybytes(localstore.read(oid)) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      blob = self._read(self.vfs, oid, verify) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      blobstore._verify(oid, 'dummy content') (glob)
   $LOCALIP - - [$ERRDATE$] HG error:      hint=_('run hg verify')) (glob)
   $LOCALIP - - [$ERRDATE$] HG error:  LfsCorruptionError: detected corrupt lfs object: 276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d (glob)
   $LOCALIP - - [$ERRDATE$] HG error:   (glob)

tests/test-lfs-serve.t

@@ -1,445 +1,450 b''
 #testcases lfsremote-on lfsremote-off
 #require serve no-reposimplestore
 
 This test splits `hg serve` with and without using the extension into separate
 tests cases.  The tests are broken down as follows, where "LFS"/"No-LFS"
 indicates whether or not there are commits that use an LFS file, and "D"/"E"
 indicates whether or not the extension is loaded.  The "X" cases are not tested
 individually, because the lfs requirement causes the process to bail early if
 the extension is disabled.
 
 .                        Server
 .
 .                    No-LFS        LFS
 .            +----------------------------+
 .            |   ||  D  |  E  |  D  |  E  |
 .            |---++=======================|
 .  C         | D || N/A | #1  |  X  | #4  |
 .  l    No   +---++-----------------------|
 .  i    LFS  | E || #2  | #2  |  X  | #5  |
 .  e         +---++-----------------------|
 .  n         | D ||  X  |  X  |  X  |  X  |
 .  t    LFS  |---++-----------------------|
 .            | E || #3  | #3  |  X  | #6  |
 .            |---++-----------------------+
 
   $ hg init server
   $ SERVER_REQUIRES="$TESTTMP/server/.hg/requires"
 
 Skip the experimental.changegroup3=True config.  Failure to agree on this comes
 first, and causes a "ValueError: no common changegroup version" or "abort:
 HTTP Error 500: Internal Server Error", if the extension is only loaded on one
 side.  If that *is* enabled, the subsequent failure is "abort: missing processor
 for flag '0x2000'!" if the extension is only loaded on one side (possibly also
 masked by the Internal Server Error message).
   $ cat >> $HGRCPATH <<EOF
   > [experimental]
   > lfs.disableusercache = True
   > [lfs]
   > threshold=10
   > [web]
   > allow_push=*
   > push_ssl=False
   > EOF
 
 #if lfsremote-on
   $ hg --config extensions.lfs= -R server \
   >    serve -p $HGPORT -d --pid-file=hg.pid --errorlog=$TESTTMP/errors.log
 #else
   $ hg --config extensions.lfs=! -R server \
   >    serve -p $HGPORT -d --pid-file=hg.pid --errorlog=$TESTTMP/errors.log
 #endif
 
   $ cat hg.pid >> $DAEMON_PIDS
   $ hg clone -q http://localhost:$HGPORT client
   $ grep 'lfs' client/.hg/requires $SERVER_REQUIRES
   [1]
 
 --------------------------------------------------------------------------------
 Case #1: client with non-lfs content and the extension disabled; server with
 non-lfs content, and the extension enabled.
 
   $ cd client
   $ echo 'non-lfs' > nonlfs.txt
   $ hg ci -Aqm 'non-lfs'
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   [1]
 
 #if lfsremote-on
 
   $ hg push -q
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   [1]
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client1_clone
   $ grep 'lfs' $TESTTMP/client1_clone/.hg/requires $SERVER_REQUIRES
   [1]
 
   $ hg init $TESTTMP/client1_pull
   $ hg -R $TESTTMP/client1_pull pull -q http://localhost:$HGPORT
   $ grep 'lfs' $TESTTMP/client1_pull/.hg/requires $SERVER_REQUIRES
   [1]
 
   $ hg identify http://localhost:$HGPORT
   d437e1d24fbd
 
 #endif
 
 --------------------------------------------------------------------------------
 Case #2: client with non-lfs content and the extension enabled; server with
 non-lfs content, and the extension state controlled by #testcases.
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > lfs =
   > EOF
   $ echo 'non-lfs' > nonlfs2.txt
   $ hg ci -Aqm 'non-lfs file with lfs client'
 
 Since no lfs content has been added yet, the push is allowed, even when the
 extension is not enabled remotely.
 
   $ hg push -q
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   [1]
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client2_clone
   $ grep 'lfs' $TESTTMP/client2_clone/.hg/requires $SERVER_REQUIRES
   [1]
 
   $ hg init $TESTTMP/client2_pull
   $ hg -R $TESTTMP/client2_pull pull -q http://localhost:$HGPORT
   $ grep 'lfs' $TESTTMP/client2_pull/.hg/requires $SERVER_REQUIRES
   [1]
 
   $ hg identify http://localhost:$HGPORT
   1477875038c6
 
 --------------------------------------------------------------------------------
 Case #3: client with lfs content and the extension enabled; server with
 non-lfs content, and the extension state controlled by #testcases.  The server
 should have an 'lfs' requirement after it picks up its first commit with a blob.
 
   $ echo 'this is a big lfs file' > lfs.bin
   $ hg ci -Aqm 'lfs'
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   .hg/requires:lfs
 
 #if lfsremote-off
   $ hg push -q
   abort: required features are not supported in the destination: lfs
   (enable the lfs extension on the server)
   [255]
 #else
   $ hg push -q
 #endif
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   .hg/requires:lfs
   $TESTTMP/server/.hg/requires:lfs (lfsremote-on !)
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client3_clone
   $ grep 'lfs' $TESTTMP/client3_clone/.hg/requires $SERVER_REQUIRES || true
   $TESTTMP/client3_clone/.hg/requires:lfs (lfsremote-on !)
   $TESTTMP/server/.hg/requires:lfs (lfsremote-on !)
 
   $ hg init $TESTTMP/client3_pull
   $ hg -R $TESTTMP/client3_pull pull -q http://localhost:$HGPORT
   $ grep 'lfs' $TESTTMP/client3_pull/.hg/requires $SERVER_REQUIRES || true
   $TESTTMP/client3_pull/.hg/requires:lfs (lfsremote-on !)
   $TESTTMP/server/.hg/requires:lfs (lfsremote-on !)
 
 The difference here is the push failed above when the extension isn't
 enabled on the server.
   $ hg identify http://localhost:$HGPORT
   8374dc4052cb (lfsremote-on !)
   1477875038c6 (lfsremote-off !)
 
 Don't bother testing the lfsremote-off cases- the server won't be able
 to launch if there's lfs content and the extension is disabled.
 
 #if lfsremote-on
 
 --------------------------------------------------------------------------------
 Case #4: client with non-lfs content and the extension disabled; server with
 lfs content, and the extension enabled.
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > lfs = !
   > EOF
 
   $ hg init $TESTTMP/client4
   $ cd $TESTTMP/client4
   $ cat >> .hg/hgrc <<EOF
   > [paths]
   > default = http://localhost:$HGPORT
   > EOF
   $ echo 'non-lfs' > nonlfs2.txt
   $ hg ci -Aqm 'non-lfs'
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   $TESTTMP/server/.hg/requires:lfs
 
   $ hg push -q --force
   warning: repository is unrelated
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   $TESTTMP/server/.hg/requires:lfs
 
 TODO: fail more gracefully.
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client4_clone
   abort: HTTP Error 500: Internal Server Error
   [255]
   $ grep 'lfs' $TESTTMP/client4_clone/.hg/requires $SERVER_REQUIRES
   grep: $TESTTMP/client4_clone/.hg/requires: $ENOENT$
   $TESTTMP/server/.hg/requires:lfs
   [2]
 
 TODO: fail more gracefully.
 
   $ hg init $TESTTMP/client4_pull
   $ hg -R $TESTTMP/client4_pull pull -q http://localhost:$HGPORT
   abort: HTTP Error 500: Internal Server Error
   [255]
   $ grep 'lfs' $TESTTMP/client4_pull/.hg/requires $SERVER_REQUIRES
   $TESTTMP/server/.hg/requires:lfs
 
   $ hg identify http://localhost:$HGPORT
   03b080fa9d93
 
 --------------------------------------------------------------------------------
 Case #5: client with non-lfs content and the extension enabled; server with
 lfs content, and the extension enabled.
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > lfs =
   > EOF
   $ echo 'non-lfs' > nonlfs3.txt
   $ hg ci -Aqm 'non-lfs file with lfs client'
 
   $ hg push -q
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   $TESTTMP/server/.hg/requires:lfs
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client5_clone
   $ grep 'lfs' $TESTTMP/client5_clone/.hg/requires $SERVER_REQUIRES
   $TESTTMP/client5_clone/.hg/requires:lfs
   $TESTTMP/server/.hg/requires:lfs
 
   $ hg init $TESTTMP/client5_pull
   $ hg -R $TESTTMP/client5_pull pull -q http://localhost:$HGPORT
   $ grep 'lfs' $TESTTMP/client5_pull/.hg/requires $SERVER_REQUIRES
   $TESTTMP/client5_pull/.hg/requires:lfs
   $TESTTMP/server/.hg/requires:lfs
 
   $ hg identify http://localhost:$HGPORT
   c729025cc5e3
 
 --------------------------------------------------------------------------------
 Case #6: client with lfs content and the extension enabled; server with
 lfs content, and the extension enabled.
 
   $ echo 'this is another lfs file' > lfs2.txt
   $ hg ci -Aqm 'lfs file with lfs client'
 
   $ hg --config paths.default= push -v http://localhost:$HGPORT
   pushing to http://localhost:$HGPORT/
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   searching for changes
   remote has heads on branch 'default' that are not known locally: 8374dc4052cb
   lfs: uploading a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de (25 bytes)
   lfs: processed: a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de
   lfs: uploaded 1 files (25 bytes)
   1 changesets found
   uncompressed size of bundle content:
        206 (changelog)
        172 (manifests)
        275  lfs2.txt
   remote: adding changesets
   remote: adding manifests
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   .hg/requires:lfs
   $TESTTMP/server/.hg/requires:lfs
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client6_clone
   $ grep 'lfs' $TESTTMP/client6_clone/.hg/requires $SERVER_REQUIRES
   $TESTTMP/client6_clone/.hg/requires:lfs
   $TESTTMP/server/.hg/requires:lfs
 
   $ hg init $TESTTMP/client6_pull
   $ hg -R $TESTTMP/client6_pull pull -u -v http://localhost:$HGPORT
   pulling from http://localhost:$HGPORT/
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 6 changesets with 5 changes to 5 files (+1 heads)
   calling hook pretxnchangegroup.lfs: hgext.lfs.checkrequireslfs
   new changesets d437e1d24fbd:d3b84d50eacb
   resolving manifests
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   lfs: downloading a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de (25 bytes)
   lfs: processed: a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de
+  lfs: downloaded 1 files (25 bytes)
   getting lfs2.txt
   lfs: found a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de in the local lfs store
   getting nonlfs2.txt
   getting nonlfs3.txt
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to "d3b84d50eacb: lfs file with lfs client"
   1 other heads for branch "default"
   $ grep 'lfs' $TESTTMP/client6_pull/.hg/requires $SERVER_REQUIRES
   $TESTTMP/client6_pull/.hg/requires:lfs
   $TESTTMP/server/.hg/requires:lfs
 
   $ hg identify http://localhost:$HGPORT
   d3b84d50eacb
 
 --------------------------------------------------------------------------------
 Misc: process dies early if a requirement exists and the extension is disabled
 
   $ hg --config extensions.lfs=! summary
   abort: repository requires features unknown to this Mercurial: lfs!
   (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
   [255]
 
   $ echo 'this is an lfs file' > $TESTTMP/client6_clone/lfspair1.bin
   $ echo 'this is an lfs file too' > $TESTTMP/client6_clone/lfspair2.bin
   $ hg -R $TESTTMP/client6_clone ci -Aqm 'add lfs pair'
   $ hg -R $TESTTMP/client6_clone push -q
 
   $ hg clone -qU http://localhost:$HGPORT $TESTTMP/bulkfetch
 
 Export will prefetch all needed files across all needed revisions
 
   $ hg -R $TESTTMP/bulkfetch -v export -r 0:tip -o all.export
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   exporting patches:
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   lfs: need to transfer 4 objects (92 bytes)
   lfs: downloading a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de (25 bytes)
   lfs: processed: a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de
   lfs: downloading bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc (23 bytes)
   lfs: processed: bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc
   lfs: downloading cf1b2787b74e66547d931b6ebe28ff63303e803cb2baa14a8f57c4383d875782 (20 bytes)
   lfs: processed: cf1b2787b74e66547d931b6ebe28ff63303e803cb2baa14a8f57c4383d875782
   lfs: downloading d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e (24 bytes)
   lfs: processed: d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e
+  lfs: downloaded 4 files (92 bytes)
   all.export
   lfs: found bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc in the local lfs store
   lfs: found a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de in the local lfs store
   lfs: found cf1b2787b74e66547d931b6ebe28ff63303e803cb2baa14a8f57c4383d875782 in the local lfs store
   lfs: found d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e in the local lfs store
 
 Export with selected files is used with `extdiff --patch`
 
   $ rm -r $TESTTMP/bulkfetch/.hg/store/lfs
   $ hg --config extensions.extdiff= \
   >    -R $TESTTMP/bulkfetch -v extdiff -r 2:tip --patch $TESTTMP/bulkfetch/lfs.bin
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   lfs: downloading bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc (23 bytes)
   lfs: processed: bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc
+  lfs: downloaded 1 files (23 bytes)
   */hg-8374dc4052cb.patch (glob)
   lfs: found bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc in the local lfs store
   */hg-9640b57e77b1.patch (glob)
   --- */hg-8374dc4052cb.patch	* (glob)
   +++ */hg-9640b57e77b1.patch	* (glob)
   @@ -2,12 +2,7 @@
    # User test
    # Date 0 0
    #      Thu Jan 01 00:00:00 1970 +0000
   -# Node ID 8374dc4052cbd388e79d9dc4ddb29784097aa354
   -# Parent  1477875038c60152e391238920a16381c627b487
   -lfs
   +# Node ID 9640b57e77b14c3a0144fb4478b6cc13e13ea0d1
   +# Parent  d3b84d50eacbd56638e11abce6b8616aaba54420
   +add lfs pair
    
   -diff -r 1477875038c6 -r 8374dc4052cb lfs.bin
   ---- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   -+++ b/lfs.bin	Thu Jan 01 00:00:00 1970 +0000
   -@@ -0,0 +1,1 @@
   -+this is a big lfs file
   cleaning up temp directory
   [1]
 
 Diff will prefetch files
 
   $ rm -r $TESTTMP/bulkfetch/.hg/store/lfs
   $ hg -R $TESTTMP/bulkfetch -v diff -r 2:tip
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   lfs: need to transfer 4 objects (92 bytes)
   lfs: downloading a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de (25 bytes)
   lfs: processed: a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de
   lfs: downloading bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc (23 bytes)
   lfs: processed: bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc
   lfs: downloading cf1b2787b74e66547d931b6ebe28ff63303e803cb2baa14a8f57c4383d875782 (20 bytes)
   lfs: processed: cf1b2787b74e66547d931b6ebe28ff63303e803cb2baa14a8f57c4383d875782
   lfs: downloading d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e (24 bytes)
   lfs: processed: d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e
+  lfs: downloaded 4 files (92 bytes)
   lfs: found bed80f00180ac404b843628ab56a1c1984d6145c391cd1628a7dd7d2598d71fc in the local lfs store
   lfs: found a82f1c5cea0d40e3bb3a849686bb4e6ae47ca27e614de55c1ed0325698ef68de in the local lfs store
   lfs: found cf1b2787b74e66547d931b6ebe28ff63303e803cb2baa14a8f57c4383d875782 in the local lfs store
   lfs: found d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e in the local lfs store
   diff -r 8374dc4052cb -r 9640b57e77b1 lfs.bin
   --- a/lfs.bin	Thu Jan 01 00:00:00 1970 +0000
   +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +0,0 @@
   -this is a big lfs file
   diff -r 8374dc4052cb -r 9640b57e77b1 lfs2.txt
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/lfs2.txt	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,1 @@
   +this is another lfs file
   diff -r 8374dc4052cb -r 9640b57e77b1 lfspair1.bin
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/lfspair1.bin	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,1 @@
   +this is an lfs file
   diff -r 8374dc4052cb -r 9640b57e77b1 lfspair2.bin
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/lfspair2.bin	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,1 @@
   +this is an lfs file too
   diff -r 8374dc4052cb -r 9640b57e77b1 nonlfs.txt
   --- a/nonlfs.txt	Thu Jan 01 00:00:00 1970 +0000
   +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +0,0 @@
   -non-lfs
   diff -r 8374dc4052cb -r 9640b57e77b1 nonlfs3.txt
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/nonlfs3.txt	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,1 @@
   +non-lfs
 
 Only the files required by diff are prefetched
 
   $ rm -r $TESTTMP/bulkfetch/.hg/store/lfs
   $ hg -R $TESTTMP/bulkfetch -v diff -r 2:tip $TESTTMP/bulkfetch/lfspair2.bin
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   lfs: assuming remote store: http://localhost:$HGPORT/.git/info/lfs
   lfs: downloading d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e (24 bytes)
   lfs: processed: d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e
+  lfs: downloaded 1 files (24 bytes)
   lfs: found d96eda2c74b56e95cfb5ffb66b6503e198cc6fc4a09dc877de925feebc65786e in the local lfs store
   diff -r 8374dc4052cb -r 9640b57e77b1 lfspair2.bin
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/lfspair2.bin	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,1 @@
   +this is an lfs file too
 
 #endif
 
   $ $PYTHON $TESTDIR/killdaemons.py $DAEMON_PIDS
 
 #if lfsremote-on
   $ cat $TESTTMP/errors.log | grep '^[A-Z]'
   Traceback (most recent call last):
   ValueError: no common changegroup version
   Traceback (most recent call last):
   ValueError: no common changegroup version
 #else
   $ cat $TESTTMP/errors.log
 #endif

tests/test-lfs-test-server.t

@@ -1,937 +1,942 b''
 #require no-reposimplestore
 #testcases git-server hg-server
 
 #if git-server
 #require lfs-test-server
 #else
 #require serve
 #endif
 
 #if git-server
   $ LFS_LISTEN="tcp://:$HGPORT"
   $ LFS_HOST="localhost:$HGPORT"
   $ LFS_PUBLIC=1
   $ export LFS_LISTEN LFS_HOST LFS_PUBLIC
 #else
   $ LFS_HOST="localhost:$HGPORT/.git/info/lfs"
 #endif
 
 #if no-windows git-server
   $ lfs-test-server &> lfs-server.log &
   $ echo $! >> $DAEMON_PIDS
 #endif
 
 #if windows git-server
   $ cat >> $TESTTMP/spawn.py <<EOF
   > import os
   > import subprocess
   > import sys
   > 
   > for path in os.environ["PATH"].split(os.pathsep):
   >     exe = os.path.join(path, 'lfs-test-server.exe')
   >     if os.path.exists(exe):
   >         with open('lfs-server.log', 'wb') as out:
   >             p = subprocess.Popen(exe, stdout=out, stderr=out)
   >             sys.stdout.write('%s\n' % p.pid)
   >             sys.exit(0)
   > sys.exit(1)
   > EOF
   $ $PYTHON $TESTTMP/spawn.py >> $DAEMON_PIDS
 #endif
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > lfs=
   > [lfs]
   > url=http://foo:bar@$LFS_HOST
   > track=all()
   > [web]
   > push_ssl = False
   > allow-push = *
   > EOF
 
 Use a separate usercache, otherwise the server sees what the client commits, and
 never requests a transfer.
 
 #if hg-server
   $ hg init server
   $ hg --config "lfs.usercache=$TESTTMP/servercache" -R server serve -d \
   >    -p $HGPORT --pid-file=hg.pid -A $TESTTMP/access.log -E $TESTTMP/errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 #endif
 
   $ hg init repo1
   $ cd repo1
   $ echo THIS-IS-LFS > a
   $ hg commit -m a -A a
 
 A push can be serviced directly from the usercache if it isn't in the local
 store.
 
   $ hg init ../repo2
   $ mv .hg/store/lfs .hg/store/lfs_
   $ hg push ../repo2 --debug
   http auth: user foo, password ***
   pushing to ../repo2
   http auth: user foo, password ***
   http auth: user foo, password ***
   query 1; heads
   searching for changes
   1 total queries in *s (glob)
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
   lfs: computing set of blobs to upload
   Status: 200
   Content-Length: 309 (git-server !)
   Content-Length: 350 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": {
           "upload": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/objects/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b" (git-server !)
             "href": "http://localhost:$HGPORT/.hg/lfs/objects/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b" (hg-server !)
           }
         }
         "oid": "31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b"
         "size": 12
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: uploading 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b (12 bytes)
   Status: 200 (git-server !)
   Status: 201 (hg-server !)
   Content-Length: 0
   Content-Type: text/plain; charset=utf-8
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: processed: 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b
   lfs: uploaded 1 files (12 bytes)
   1 changesets found
   list of changesets:
   99a7098854a3984a5c9eab0fc7a2906697b7cb5c
   bundle2-output-bundle: "HG20", 4 parts total
   bundle2-output-part: "replycaps" * bytes payload (glob)
   bundle2-output-part: "check:heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
   bundle2-input-part: total payload size * (glob)
   bundle2-input-part: "check:heads" supported
   bundle2-input-part: total payload size 20
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset 99a7098854a3
   adding manifests
   adding file changes
   adding a revisions
   added 1 changesets with 1 changes to 1 files
   calling hook pretxnchangegroup.lfs: hgext.lfs.checkrequireslfs
   bundle2-input-part: total payload size 617
   bundle2-input-part: "phase-heads" supported
   bundle2-input-part: total payload size 24
   bundle2-input-bundle: 3 parts total
   updating the branch cache
   bundle2-output-bundle: "HG20", 1 parts total
   bundle2-output-part: "reply:changegroup" (advisory) (params: 0 advisory) empty payload
   bundle2-input-bundle: no-transaction
   bundle2-input-part: "reply:changegroup" (advisory) (params: 0 advisory) supported
   bundle2-input-bundle: 0 parts total
   listing keys for "phases"
   $ mv .hg/store/lfs_ .hg/store/lfs
 
 Clear the cache to force a download
   $ rm -rf `hg config lfs.usercache`
   $ cd ../repo2
   $ hg update tip --debug
   http auth: user foo, password ***
   resolving manifests
    branchmerge: False, force: False, partial: False
    ancestor: 000000000000, local: 000000000000+, remote: 99a7098854a3
   http auth: user foo, password ***
   Status: 200
   Content-Length: 311 (git-server !)
   Content-Length: 352 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b" (glob)
           }
         }
         "oid": "31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b"
         "size": 12
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: downloading 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b (12 bytes)
   Status: 200
   Content-Length: 12
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b to the usercache
   lfs: processed: 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b
+  lfs: downloaded 1 files (12 bytes)
    a: remote created -> g
   getting a
   lfs: found 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b in the local lfs store
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 When the server has some blobs already.  `hg serve` doesn't offer to upload
 blobs that it already knows about.  Note that lfs-test-server is simply
 toggling the action to 'download'.  The Batch API spec says it should omit the
 actions property completely.
 
   $ hg mv a b
   $ echo ANOTHER-LARGE-FILE > c
   $ echo ANOTHER-LARGE-FILE2 > d
   $ hg commit -m b-and-c -A b c d
   $ hg push ../repo1 --debug
   http auth: user foo, password ***
   pushing to ../repo1
   http auth: user foo, password ***
   http auth: user foo, password ***
   query 1; heads
   searching for changes
   all remote heads known locally
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
   listing keys for "bookmarks"
   lfs: computing set of blobs to upload
   Status: 200
   Content-Length: 901 (git-server !)
   Content-Length: 755 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": { (git-server !)
           "download": { (git-server !)
             "expires_at": "$ISO_8601_DATE_TIME$" (git-server !)
             "header": { (git-server !)
               "Accept": "application/vnd.git-lfs" (git-server !)
             } (git-server !)
             "href": "http://localhost:$HGPORT/objects/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b" (git-server !)
           } (git-server !)
         } (git-server !)
         "oid": "31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b"
         "size": 12
       }
       {
         "actions": {
           "upload": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19" (glob)
           }
         }
         "oid": "37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19"
         "size": 20
       }
       {
         "actions": {
           "upload": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998" (glob)
           }
         }
         "oid": "d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998"
         "size": 19
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: need to transfer 2 objects (39 bytes)
   lfs: uploading 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 (20 bytes)
   Status: 200 (git-server !)
   Status: 201 (hg-server !)
   Content-Length: 0
   Content-Type: text/plain; charset=utf-8
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: processed: 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19
   lfs: uploading d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (19 bytes)
   Status: 200 (git-server !)
   Status: 201 (hg-server !)
   Content-Length: 0
   Content-Type: text/plain; charset=utf-8
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: processed: d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
   lfs: uploaded 2 files (39 bytes)
   1 changesets found
   list of changesets:
   dfca2c9e2ef24996aa61ba2abd99277d884b3d63
   bundle2-output-bundle: "HG20", 5 parts total
   bundle2-output-part: "replycaps" * bytes payload (glob)
   bundle2-output-part: "check:phases" 24 bytes payload
   bundle2-output-part: "check:heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
   bundle2-input-part: total payload size * (glob)
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
   bundle2-input-part: "check:heads" supported
   bundle2-input-part: total payload size 20
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset dfca2c9e2ef2
   adding manifests
   adding file changes
   adding b revisions
   adding c revisions
   adding d revisions
   added 1 changesets with 3 changes to 3 files
   bundle2-input-part: total payload size 1315
   bundle2-input-part: "phase-heads" supported
   bundle2-input-part: total payload size 24
   bundle2-input-bundle: 4 parts total
   updating the branch cache
   bundle2-output-bundle: "HG20", 1 parts total
   bundle2-output-part: "reply:changegroup" (advisory) (params: 0 advisory) empty payload
   bundle2-input-bundle: no-transaction
   bundle2-input-part: "reply:changegroup" (advisory) (params: 0 advisory) supported
   bundle2-input-bundle: 0 parts total
   listing keys for "phases"
 
 Clear the cache to force a download
   $ rm -rf `hg config lfs.usercache`
   $ hg --repo ../repo1 update tip --debug
   http auth: user foo, password ***
   resolving manifests
    branchmerge: False, force: False, partial: False
    ancestor: 99a7098854a3, local: 99a7098854a3+, remote: dfca2c9e2ef2
   http auth: user foo, password ***
   Status: 200
   Content-Length: 608 (git-server !)
   Content-Length: 670 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19" (glob)
           }
         }
         "oid": "37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19"
         "size": 20
       }
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998" (glob)
           }
         }
         "oid": "d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998"
         "size": 19
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: need to transfer 2 objects (39 bytes)
   lfs: downloading 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 (20 bytes)
   Status: 200
   Content-Length: 20
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 to the usercache
   lfs: processed: 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19
   lfs: downloading d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (19 bytes)
   Status: 200
   Content-Length: 19
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 to the usercache
   lfs: processed: d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
+  lfs: downloaded 2 files (39 bytes)
    b: remote created -> g
   getting b
   lfs: found 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b in the local lfs store
    c: remote created -> g
   getting c
   lfs: found d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 in the local lfs store
    d: remote created -> g
   getting d
   lfs: found 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 in the local lfs store
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Test a corrupt file download, but clear the cache first to force a download.
 `hg serve` indicates a corrupt file without transferring it, unlike
 lfs-test-server.
 
   $ rm -rf `hg config lfs.usercache`
 #if git-server
   $ cp $TESTTMP/lfs-content/d1/1e/1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 blob
   $ echo 'damage' > $TESTTMP/lfs-content/d1/1e/1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
 #else
   $ cp $TESTTMP/server/.hg/store/lfs/objects/d1/1e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 blob
   $ echo 'damage' > $TESTTMP/server/.hg/store/lfs/objects/d1/1e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
 #endif
   $ rm ../repo1/.hg/store/lfs/objects/d1/1e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
   $ rm ../repo1/*
 
 TODO: give the proper error indication from `hg serve`
 
   $ hg --repo ../repo1 update -C tip --debug
   http auth: user foo, password ***
   resolving manifests
    branchmerge: False, force: True, partial: False
    ancestor: dfca2c9e2ef2+, local: dfca2c9e2ef2+, remote: dfca2c9e2ef2
   http auth: user foo, password ***
   Status: 200
   Content-Length: 311 (git-server !)
   Content-Length: 183 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": { (git-server !)
           "download": { (git-server !)
             "expires_at": "$ISO_8601_DATE_TIME$" (git-server !)
             "header": { (git-server !)
               "Accept": "application/vnd.git-lfs" (git-server !)
             } (git-server !)
             "href": "http://localhost:$HGPORT/objects/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998" (git-server !)
           } (git-server !)
         "error": { (hg-server !)
           "code": 422 (hg-server !)
           "message": "The object is corrupt" (hg-server !)
         }
         "oid": "d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998"
         "size": 19
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: downloading d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (19 bytes) (git-server !)
   Status: 200 (git-server !)
   Content-Length: 7 (git-server !)
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Date: $HTTP_DATE$ (git-server !)
   abort: corrupt remote lfs object: d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (git-server !)
   abort: LFS server error for "c": Validation error! (hg-server !)
   [255]
 
 The corrupted blob is not added to the usercache or local store
 
   $ test -f ../repo1/.hg/store/lfs/objects/d1/1e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
   [1]
   $ test -f `hg config lfs.usercache`/d1/1e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
   [1]
 #if git-server
   $ cp blob $TESTTMP/lfs-content/d1/1e/1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
 #else
   $ cp blob $TESTTMP/server/.hg/store/lfs/objects/d1/1e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
 #endif
 
 Test a corrupted file upload
 
   $ echo 'another lfs blob' > b
   $ hg ci -m 'another blob'
   $ echo 'damage' > .hg/store/lfs/objects/e6/59058e26b07b39d2a9c7145b3f99b41f797b6621c8076600e9cb7ee88291f0
   $ hg push --debug ../repo1
   http auth: user foo, password ***
   pushing to ../repo1
   http auth: user foo, password ***
   http auth: user foo, password ***
   query 1; heads
   searching for changes
   all remote heads known locally
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
   listing keys for "bookmarks"
   lfs: computing set of blobs to upload
   Status: 200
   Content-Length: 309 (git-server !)
   Content-Length: 350 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": {
           "upload": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/e659058e26b07b39d2a9c7145b3f99b41f797b6621c8076600e9cb7ee88291f0" (glob)
           }
         }
         "oid": "e659058e26b07b39d2a9c7145b3f99b41f797b6621c8076600e9cb7ee88291f0"
         "size": 17
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: uploading e659058e26b07b39d2a9c7145b3f99b41f797b6621c8076600e9cb7ee88291f0 (17 bytes)
   abort: detected corrupt lfs object: e659058e26b07b39d2a9c7145b3f99b41f797b6621c8076600e9cb7ee88291f0
   (run hg verify)
   [255]
 
 Archive will prefetch blobs in a group
 
   $ rm -rf .hg/store/lfs `hg config lfs.usercache`
   $ hg archive --debug -r 1 ../archive
   http auth: user foo, password ***
   http auth: user foo, password ***
   Status: 200
   Content-Length: 905 (git-server !)
   Content-Length: 988 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b" (glob)
           }
         }
         "oid": "31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b"
         "size": 12
       }
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19" (glob)
           }
         }
         "oid": "37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19"
         "size": 20
       }
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998" (glob)
           }
         }
         "oid": "d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998"
         "size": 19
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: need to transfer 3 objects (51 bytes)
   lfs: downloading 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b (12 bytes)
   Status: 200
   Content-Length: 12
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b to the usercache
   lfs: processed: 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b
   lfs: downloading 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 (20 bytes)
   Status: 200
   Content-Length: 20
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 to the usercache
   lfs: processed: 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19
   lfs: downloading d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (19 bytes)
   Status: 200
   Content-Length: 19
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 to the usercache
   lfs: processed: d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
+  lfs: downloaded 3 files (51 bytes)
   lfs: found 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b in the local lfs store
   lfs: found 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b in the local lfs store
   lfs: found d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 in the local lfs store
   lfs: found 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 in the local lfs store
   $ find ../archive | sort
   ../archive
   ../archive/.hg_archival.txt
   ../archive/a
   ../archive/b
   ../archive/c
   ../archive/d
 
 Cat will prefetch blobs in a group
 
   $ rm -rf .hg/store/lfs `hg config lfs.usercache`
   $ hg cat --debug -r 1 a b c nonexistent
   http auth: user foo, password ***
   http auth: user foo, password ***
   Status: 200
   Content-Length: 608 (git-server !)
   Content-Length: 670 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b" (glob)
           }
         }
         "oid": "31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b"
         "size": 12
       }
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998" (glob)
           }
         }
         "oid": "d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998"
         "size": 19
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: need to transfer 2 objects (31 bytes)
   lfs: downloading 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b (12 bytes)
   Status: 200
   Content-Length: 12
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b to the usercache
   lfs: processed: 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b
   lfs: downloading d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (19 bytes)
   Status: 200
   Content-Length: 19
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 to the usercache
   lfs: processed: d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
+  lfs: downloaded 2 files (31 bytes)
   lfs: found 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b in the local lfs store
   THIS-IS-LFS
   lfs: found 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b in the local lfs store
   THIS-IS-LFS
   lfs: found d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 in the local lfs store
   ANOTHER-LARGE-FILE
   nonexistent: no such file in rev dfca2c9e2ef2
 
 Revert will prefetch blobs in a group
 
   $ rm -rf .hg/store/lfs
   $ rm -rf `hg config lfs.usercache`
   $ rm *
   $ hg revert --all -r 1 --debug
   http auth: user foo, password ***
   adding a
   reverting b
   reverting c
   reverting d
   http auth: user foo, password ***
   Status: 200
   Content-Length: 905 (git-server !)
   Content-Length: 988 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b" (glob)
           }
         }
         "oid": "31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b"
         "size": 12
       }
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19" (glob)
           }
         }
         "oid": "37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19"
         "size": 20
       }
       {
         "actions": {
           "download": {
             "expires_at": "$ISO_8601_DATE_TIME$"
             "header": {
               "Accept": "application/vnd.git-lfs"
             }
             "href": "http://localhost:$HGPORT/*/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998" (glob)
           }
         }
         "oid": "d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998"
         "size": 19
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   lfs: need to transfer 3 objects (51 bytes)
   lfs: downloading 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b (12 bytes)
   Status: 200
   Content-Length: 12
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b to the usercache
   lfs: processed: 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b
   lfs: downloading 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 (20 bytes)
   Status: 200
   Content-Length: 20
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 to the usercache
   lfs: processed: 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19
   lfs: downloading d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (19 bytes)
   Status: 200
   Content-Length: 19
   Content-Type: text/plain; charset=utf-8 (git-server !)
   Content-Type: application/octet-stream (hg-server !)
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   lfs: adding d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 to the usercache
   lfs: processed: d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998
+  lfs: downloaded 3 files (51 bytes)
   lfs: found 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b in the local lfs store
   lfs: found d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 in the local lfs store
   lfs: found 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 in the local lfs store
   lfs: found 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b in the local lfs store
 
 Check error message when the remote missed a blob:
 
   $ echo FFFFF > b
   $ hg commit -m b -A b
   $ echo FFFFF >> b
   $ hg commit -m b b
   $ rm -rf .hg/store/lfs
   $ rm -rf `hg config lfs.usercache`
   $ hg update -C '.^' --debug
   http auth: user foo, password ***
   resolving manifests
    branchmerge: False, force: True, partial: False
    ancestor: 62fdbaf221c6+, local: 62fdbaf221c6+, remote: ef0564edf47e
   http auth: user foo, password ***
   Status: 200
   Content-Length: 308 (git-server !)
   Content-Length: 186 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": { (git-server !)
           "upload": { (git-server !)
             "expires_at": "$ISO_8601_DATE_TIME$" (git-server !)
             "header": { (git-server !)
               "Accept": "application/vnd.git-lfs" (git-server !)
             } (git-server !)
             "href": "http://localhost:$HGPORT/objects/8e6ea5f6c066b44a0efa43bcce86aea73f17e6e23f0663df0251e7524e140a13" (git-server !)
           } (git-server !)
         "error": { (hg-server !)
           "code": 404 (hg-server !)
           "message": "The object does not exist" (hg-server !)
         }
         "oid": "8e6ea5f6c066b44a0efa43bcce86aea73f17e6e23f0663df0251e7524e140a13"
         "size": 6
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   abort: LFS server error for "b": The object does not exist!
   [255]
 
 Check error message when object does not exist:
 
   $ cd $TESTTMP
   $ hg init test && cd test
   $ echo "[extensions]" >> .hg/hgrc
   $ echo "lfs=" >> .hg/hgrc
   $ echo "[lfs]" >> .hg/hgrc
   $ echo "threshold=1" >> .hg/hgrc
   $ echo a > a
   $ hg add a
   $ hg commit -m 'test'
   $ echo aaaaa > a
   $ hg commit -m 'largefile'
   $ hg debugdata a 1 # verify this is no the file content but includes "oid", the LFS "pointer".
   version https://git-lfs.github.com/spec/v1
   oid sha256:bdc26931acfb734b142a8d675f205becf27560dc461f501822de13274fe6fc8a
   size 6
   x-is-binary 0
   $ cd ..
   $ rm -rf `hg config lfs.usercache`
 
 (Restart the server in a different location so it no longer has the content)
 
   $ $PYTHON $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
 
 #if hg-server
   $ cat $TESTTMP/access.log $TESTTMP/errors.log
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "PUT /.hg/lfs/objects/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b HTTP/1.1" 201 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "PUT /.hg/lfs/objects/37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 HTTP/1.1" 201 - (glob)
   $LOCALIP - - [$LOGDATE$] "PUT /.hg/lfs/objects/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 HTTP/1.1" 201 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
 #endif
 
   $ rm $DAEMON_PIDS
   $ mkdir $TESTTMP/lfs-server2
   $ cd $TESTTMP/lfs-server2
 #if no-windows git-server
   $ lfs-test-server &> lfs-server.log &
   $ echo $! >> $DAEMON_PIDS
 #endif
 
 #if windows git-server
   $ $PYTHON $TESTTMP/spawn.py >> $DAEMON_PIDS
 #endif
 
 #if hg-server
   $ hg init server2
   $ hg --config "lfs.usercache=$TESTTMP/servercache2" -R server2 serve -d \
   >    -p $HGPORT --pid-file=hg.pid -A $TESTTMP/access.log -E $TESTTMP/errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 #endif
 
   $ cd $TESTTMP
   $ hg --debug clone test test2
   http auth: user foo, password ***
   linked 6 files
   http auth: user foo, password ***
   updating to branch default
   resolving manifests
    branchmerge: False, force: False, partial: False
    ancestor: 000000000000, local: 000000000000+, remote: d2a338f184a8
   http auth: user foo, password ***
   Status: 200
   Content-Length: 308 (git-server !)
   Content-Length: 186 (hg-server !)
   Content-Type: application/vnd.git-lfs+json
   Date: $HTTP_DATE$
   Server: testing stub value (hg-server !)
   {
     "objects": [
       {
         "actions": { (git-server !)
           "upload": { (git-server !)
             "expires_at": "$ISO_8601_DATE_TIME$" (git-server !)
             "header": { (git-server !)
               "Accept": "application/vnd.git-lfs" (git-server !)
             } (git-server !)
             "href": "http://localhost:$HGPORT/objects/bdc26931acfb734b142a8d675f205becf27560dc461f501822de13274fe6fc8a" (git-server !)
           } (git-server !)
         "error": { (hg-server !)
           "code": 404 (hg-server !)
           "message": "The object does not exist" (hg-server !)
         }
         "oid": "bdc26931acfb734b142a8d675f205becf27560dc461f501822de13274fe6fc8a"
         "size": 6
       }
     ]
     "transfer": "basic" (hg-server !)
   }
   abort: LFS server error for "a": The object does not exist!
   [255]
 
   $ $PYTHON $RUNTESTDIR/killdaemons.py $DAEMON_PIDS