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Differential D5122

remotefilelog: remove support for fetching packs
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Authored by durin42 on Oct 16 2018, 3:18 PM.

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indygreg

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rHG6d64e2abe8d3: remotefilelog: remove support for fetching packs

Summary

We've never used this at Google, and it's strictly an optimization
that indygreg and I are confident we can handle more elegantly
later. Let's rip it out to keep the surface area of the imported
remotefilelog small.

Some tests have changes because the tests for regular packs and
repacking were mixed with tests of fetching packs. I'm pretty sure
I've done the right thing here.

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Event Timeline

durin42 created this revision.Oct 16 2018, 3:18 PM

Herald added a reviewer: hg-reviewers. · View Herald TranscriptOct 16 2018, 3:18 PM

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durin42 added a child revision: D5123: remotefilelogserver: remove pack-serving functionality.Oct 16 2018, 3:18 PM

indygreg accepted this revision.Oct 17 2018, 2:47 AM

This revision is now accepted and ready to land.Oct 17 2018, 2:47 AM

Closed by commit rHG6d64e2abe8d3: remotefilelog: remove support for fetching packs (authored by durin42). · Explain WhyNov 5 2018, 2:53 PM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

			Path	Packages
M			hgext/remotefilelog/__init__.py (2 lines)
M			hgext/remotefilelog/fileserverclient.py (62 lines)
M			hgext/remotefilelog/shallowrepo.py (3 lines)
M			tests/test-remotefilelog-prefetch.t (74 lines)
M			tests/test-remotefilelog-repack-fast.t (63 lines)
M			tests/test-remotefilelog-repack.t (96 lines)

Commit	Parents	Author	Summary	Date
		Augie Fackler		Oct 16 2018, 1:17 PM

Status	Author	Revision
Closed	pulkit	D5193 remotefilelog: drop compat code for "getbundle_shallow" wireprotocol command
Closed	pulkit	D5192 tests: remove lz4 as dependency while running tests
Closed	pulkit	D5191 remotefilelogserver: add a matcher argument to _walkstreamfiles()
Closed	pulkit	D5190 shallowutil: introduce a helper function isenabled()
Closed	pulkit	D5189 remotefilelog: remove some BC code related to streamclone
Closed	durin42	D5131 remotefilelog: add some docstring
Closed	durin42	D5129 remotefilelog: rename wireproto methods and remaining capabilities
Closed	durin42	D5128 remotefilelog: consolidate and rename on-disk store requirement
Closed	durin42	D5127 remotefilelog: consolidate and rename bundle2 capability
Closed	durin42	D5126 remotefilelog: rename capability for legacy ssh file fetching method
Closed	durin42	D4944 remotefilelog: rip out lz4 support
Closed	durin42	D4943 remotefilelog: bump pack file formats to version 2
Closed	durin42	D4942 remotefilelog: avoid hard-coding pack names in tests
Closed	durin42	D5124 remotefilelog: remove now-unused wirepack code
Closed	durin42	D5123 remotefilelogserver: remove pack-serving functionality
Closed	durin42	D5122 remotefilelog: remove support for fetching packs
Closed	durin42	D4941 remotefilelog: jettison example cache client
Closed	durin42	D4940 remotefilelog: prune obsolete method
Closed	durin42	D4939 logtoprocess: use new runbgcommand from procutil
Closed	durin42	D5121 procutil: port over windows encoding fixes from logtoprocess
Closed	durin42	D4938 remotefilelog: transplant runbgcommand to procutil
Closed	durin42	D4937 remotefilelog: remove function that was described as deprecated
Closed	durin42	D4782 remotefilelog: import pruned-down remotefilelog extension from hg-experimental

Diff 12178

hgext/remotefilelog/init.py

	background			background
	``remotefilelog.cachepath`` path to cache			``remotefilelog.cachepath`` path to cache
	``remotefilelog.cachegroup`` if set, make cache directory sgid to this			``remotefilelog.cachegroup`` if set, make cache directory sgid to this
	group			group
	``remotefilelog.cacheprocess`` binary to invoke for fetching file data			``remotefilelog.cacheprocess`` binary to invoke for fetching file data
	``remotefilelog.debug`` turn on remotefilelog-specific debug output			``remotefilelog.debug`` turn on remotefilelog-specific debug output
	``remotefilelog.excludepattern`` pattern of files to exclude from pulls			``remotefilelog.excludepattern`` pattern of files to exclude from pulls
	``remotefilelog.includepattern``pattern of files to include in pulls			``remotefilelog.includepattern``pattern of files to include in pulls
	``remotefilelog.fetchpacks`` if set, fetch pre-packed files from the server
	``remotefilelog.fetchwarning``: message to print when too many			``remotefilelog.fetchwarning``: message to print when too many
	single-file fetches occur			single-file fetches occur
	``remotefilelog.getfilesstep`` number of files to request in a single RPC			``remotefilelog.getfilesstep`` number of files to request in a single RPC
	``remotefilelog.getfilestype`` if set to 'threaded' use threads to fetch			``remotefilelog.getfilestype`` if set to 'threaded' use threads to fetch
	files, otherwise use optimistic fetching			files, otherwise use optimistic fetching
	``remotefilelog.pullprefetch`` revset for selecting files that should be			``remotefilelog.pullprefetch`` revset for selecting files that should be
	eagerly downloaded rather than lazily			eagerly downloaded rather than lazily
	``remotefilelog.reponame`` name of the repo. If set, used to partition			``remotefilelog.reponame`` name of the repo. If set, used to partition

	configitem('remotefilelog', 'reponame', default='')			configitem('remotefilelog', 'reponame', default='')
	configitem('remotefilelog', 'cachepath', default=None)			configitem('remotefilelog', 'cachepath', default=None)
	configitem('remotefilelog', 'cachegroup', default=None)			configitem('remotefilelog', 'cachegroup', default=None)
	configitem('remotefilelog', 'cacheprocess', default=None)			configitem('remotefilelog', 'cacheprocess', default=None)
	configitem('remotefilelog', 'cacheprocess.includepath', default=None)			configitem('remotefilelog', 'cacheprocess.includepath', default=None)
	configitem("remotefilelog", "cachelimit", default="1000 GB")			configitem("remotefilelog", "cachelimit", default="1000 GB")

	configitem('remotefilelog', 'fetchpacks', default=False)
	configitem('remotefilelog', 'fallbackpath', default=configitems.dynamicdefault,			configitem('remotefilelog', 'fallbackpath', default=configitems.dynamicdefault,
	alias=[('remotefilelog', 'fallbackrepo')])			alias=[('remotefilelog', 'fallbackrepo')])

	configitem('remotefilelog', 'validatecachelog', default=None)			configitem('remotefilelog', 'validatecachelog', default=None)
	configitem('remotefilelog', 'validatecache', default='on')			configitem('remotefilelog', 'validatecache', default='on')
	configitem('remotefilelog', 'server', default=None)			configitem('remotefilelog', 'server', default=None)
	configitem('remotefilelog', 'servercachepath', default=None)			configitem('remotefilelog', 'servercachepath', default=None)
	configitem("remotefilelog", "serverexpiration", default=30)			configitem("remotefilelog", "serverexpiration", default=30)

hgext/remotefilelog/fileserverclient.py

	# fileserverclient.py - client for communicating with the cache process			# fileserverclient.py - client for communicating with the cache process
	#			#
	# Copyright 2013 Facebook, Inc.			# Copyright 2013 Facebook, Inc.
	#			#
	# This software may be used and distributed according to the terms of the			# This software may be used and distributed according to the terms of the
	# GNU General Public License version 2 or any later version.			# GNU General Public License version 2 or any later version.

	from __future__ import absolute_import			from __future__ import absolute_import

	import hashlib			import hashlib
	import io			import io
	import os			import os
	import struct
	import threading			import threading
	import time			import time

	from mercurial.i18n import _			from mercurial.i18n import _
	from mercurial.node import bin, hex, nullid			from mercurial.node import bin, hex, nullid
	from mercurial import (			from mercurial import (
	error,			error,
	revlog,			revlog,
	sshpeer,			sshpeer,
	util,			util,
	wireprotov1peer,			wireprotov1peer,
	)			)
	from mercurial.utils import procutil			from mercurial.utils import procutil

	from . import (			from . import (
	constants,			constants,
	contentstore,			contentstore,
	lz4wrapper,			lz4wrapper,
	metadatastore,			metadatastore,
	shallowutil,
	wirepack,
	)			)

	_sshv1peer = sshpeer.sshv1peer			_sshv1peer = sshpeer.sshv1peer

	# Statistics for debugging			# Statistics for debugging
	fetchcost = 0			fetchcost = 0
	fetches = 0			fetches = 0
	fetched = 0			fetched = 0
	A list of nodes that the server couldn't find is returned.			A list of nodes that the server couldn't find is returned.
	If the connection fails, an exception is raised.			If the connection fails, an exception is raised.
	"""			"""
	if not self.remotecache.connected:			if not self.remotecache.connected:
	self.connect()			self.connect()
	cache = self.remotecache			cache = self.remotecache
	writedata = self.writedata			writedata = self.writedata

	if self.ui.configbool('remotefilelog', 'fetchpacks'):
	self.requestpack(fileids)
	return

	repo = self.repo			repo = self.repo
	count = len(fileids)			count = len(fileids)
	request = "get\n%d\n" % count			request = "get\n%d\n" % count
	idmap = {}			idmap = {}
	reponame = repo.name			reponame = repo.name
	for file, id in fileids:			for file, id in fileids:
	fullid = getcachekey(reponame, file, id)			fullid = getcachekey(reponame, file, id)
	if self.cacheprocesspasspath:			if self.cacheprocesspasspath:
	if len(data) != size:			if len(data) != size:
	raise error.ResponseError(_("error downloading file contents:"),			raise error.ResponseError(_("error downloading file contents:"),
	_("only received %s of %s bytes")			_("only received %s of %s bytes")
	% (len(data), size))			% (len(data), size))

	self.writedata.addremotefilelognode(filename, bin(node),			self.writedata.addremotefilelognode(filename, bin(node),
	lz4wrapper.lz4decompress(data))			lz4wrapper.lz4decompress(data))

	def requestpack(self, fileids):
	"""Requests the given file revisions from the server in a pack format.

	See `remotefilelogserver.getpack` for the file format.
	"""
	try:
	with self._connect() as conn:
	total = len(fileids)
	rcvd = 0

	remote = conn.peer
	remote._callstream("getpackv1")

	self._sendpackrequest(remote, fileids)

	packpath = shallowutil.getcachepackpath(
	self.repo, constants.FILEPACK_CATEGORY)
	pipei = remote._pipei
	receiveddata, receivedhistory = wirepack.receivepack(
	self.repo.ui, pipei, packpath)
	rcvd = len(receiveddata)

	self.ui.log("remotefilefetchlog",
	"Success(pack)\n" if (rcvd==total) else "Fail(pack)\n",
	fetched_files = rcvd,
	total_to_fetch = total)
	except Exception:
	self.ui.log("remotefilefetchlog",
	"Fail(pack)\n",
	fetched_files = rcvd,
	total_to_fetch = total)
	raise

	def _sendpackrequest(self, remote, fileids):
	"""Formats and writes the given fileids to the remote as part of a
	getpackv1 call.
	"""
	# Sort the requests by name, so we receive requests in batches by name
	grouped = {}
	for filename, node in fileids:
	grouped.setdefault(filename, set()).add(node)

	# Issue request
	pipeo = remote._pipeo
	for filename, nodes in grouped.iteritems():
	filenamelen = struct.pack(constants.FILENAMESTRUCT, len(filename))
	countlen = struct.pack(constants.PACKREQUESTCOUNTSTRUCT, len(nodes))
	rawnodes = ''.join(bin(n) for n in nodes)

	pipeo.write('%s%s%s%s' % (filenamelen, filename, countlen,
	rawnodes))
	pipeo.flush()
	pipeo.write(struct.pack(constants.FILENAMESTRUCT, 0))
	pipeo.flush()

	def connect(self):			def connect(self):
	if self.cacheprocess:			if self.cacheprocess:
	cmd = "%s %s" % (self.cacheprocess, self.writedata._path)			cmd = "%s %s" % (self.cacheprocess, self.writedata._path)
	self.remotecache.connect(cmd)			self.remotecache.connect(cmd)
	else:			else:
	# If no cache process is specified, we fake one that always			# If no cache process is specified, we fake one that always
	# returns cache misses. This enables tests to run easily			# returns cache misses. This enables tests to run easily
	# and may eventually allow us to be a drop in replacement			# and may eventually allow us to be a drop in replacement

hgext/remotefilelog/shallowrepo.py

	packcontentstore, cachecontent,			packcontentstore, cachecontent,
	localcontent, remotecontent, writestore=localcontent)			localcontent, remotecontent, writestore=localcontent)
	repo.metadatastore = metadatastore.unionmetadatastore(			repo.metadatastore = metadatastore.unionmetadatastore(
	packmetadatastore, cachemetadata, localmetadata, remotemetadata,			packmetadatastore, cachemetadata, localmetadata, remotemetadata,
	writestore=localmetadata)			writestore=localmetadata)

	fileservicedatawrite = cachecontent			fileservicedatawrite = cachecontent
	fileservicehistorywrite = cachemetadata			fileservicehistorywrite = cachemetadata
	if repo.ui.configbool('remotefilelog', 'fetchpacks'):
	fileservicedatawrite = packcontentstore
	fileservicehistorywrite = packmetadatastore
	repo.fileservice.setstore(repo.contentstore, repo.metadatastore,			repo.fileservice.setstore(repo.contentstore, repo.metadatastore,
	fileservicedatawrite, fileservicehistorywrite)			fileservicedatawrite, fileservicehistorywrite)
	shallowutil.reportpackmetrics(repo.ui, 'filestore',			shallowutil.reportpackmetrics(repo.ui, 'filestore',
	packcontentstore, packmetadatastore)			packcontentstore, packmetadatastore)

	def wraprepo(repo):			def wraprepo(repo):
	class shallowrepository(repo.__class__):			class shallowrepository(repo.__class__):
	@util.propertycache			@util.propertycache

tests/test-remotefilelog-prefetch.t

	$ hg up -q --clean tip			$ hg up -q --clean tip
	$ hg revert --all			$ hg revert --all
	$ mv x x2			$ mv x x2
	$ mv y y2			$ mv y y2
	$ mv z z2			$ mv z z2
	$ clearcache			$ clearcache
	$ hg addremove -s 50 > /dev/null			$ hg addremove -s 50 > /dev/null
	3 files fetched over 1 fetches - (3 misses, 0.00% hit ratio) over * (glob)			3 files fetched over 1 fetches - (3 misses, 0.00% hit ratio) over * (glob)
				$ hg revert --all
				forgetting x2
				forgetting y2
				forgetting z2
				undeleting x
				undeleting y
				undeleting z

	$ cd ..

	# Prefetch packs			# Revert across double renames. Note: the scary "abort", error is because
	$ hgcloneshallow ssh://user@dummy/master packprefetch			# https://bz.mercurial-scm.org/5419 .
	streaming all changes
	2 files to transfer, 528 bytes of data
	transferred 528 bytes in * seconds (*/sec) (glob)
	searching for changes
	no changes found
	updating to branch default
	3 files updated, 0 files merged, 0 files removed, 0 files unresolved
	$ cd packprefetch
	$ cat >> .hg/hgrc <<EOF
	> [remotefilelog]
	> fetchpacks=True
	> backgroundrepack=True
	> EOF
	$ clearcache
	$ hg prefetch -r .
	3 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)
	$ find $TESTTMP/hgcache -type f \| sort
	$TESTTMP/hgcache/master/packs/47d8f1b90a73af4ff8af19fcd10bdc027b6a881a.histidx
	$TESTTMP/hgcache/master/packs/47d8f1b90a73af4ff8af19fcd10bdc027b6a881a.histpack
	$TESTTMP/hgcache/master/packs/8c654541e4f20141a894bbfe428e36fc92202e39.dataidx
	$TESTTMP/hgcache/master/packs/8c654541e4f20141a894bbfe428e36fc92202e39.datapack
	$ hg cat -r . x
	x2
	$ hg cat -r . y
	y
	$ hg cat -r . z
	z

	# Prefetch packs that include renames
	$ cd ../master			$ cd ../master
	$ hg mv z z2			$ hg mv z z2
	$ hg commit -m 'move z -> z2'			$ hg commit -m 'move z -> z2'
	$ cd ../packprefetch			$ cd ../shallow2
	$ hg pull -q			$ hg pull -q
	(running background incremental repack)
	$ hg prefetch -r tip
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)
	$ hg up tip -q
	$ hg log -f z2 -T '{desc}\n'
	move z -> z2
	x

	# Revert across double renames. Note: the scary "abort", error is because
	# https://bz.mercurial-scm.org/5419 .

	$ clearcache			$ clearcache
	$ hg mv y y2			$ hg mv y y2
				y2: not overwriting - file exists
				('hg rename --after' to record the rename)
				[1]
	$ hg mv x x2			$ hg mv x x2
				x2: not overwriting - file exists
				('hg rename --after' to record the rename)
				[1]
	$ hg mv z2 z3			$ hg mv z2 z3
				z2: not copying - file is not managed
				abort: no files to copy
				[255]
	$ hg revert -a -r 1 \|\| true			$ hg revert -a -r 1 \|\| true
	forgetting x2			3 files fetched over 1 fetches - (3 misses, 0.00% hit ratio) over * (glob)
	forgetting y2
	forgetting z3
	adding z
	undeleting x
	undeleting y
	3 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)
	abort: z2@109c3a557a73: not found in manifest! (?)			abort: z2@109c3a557a73: not found in manifest! (?)

tests/test-remotefilelog-repack-fast.t

	x			x

	Incremental repack			Incremental repack
	$ rm -rf $CACHEDIR/master/packs/*			$ rm -rf $CACHEDIR/master/packs/*
	$ cat >> .hg/hgrc <<EOF			$ cat >> .hg/hgrc <<EOF
	> [remotefilelog]			> [remotefilelog]
	> data.generations=60			> data.generations=60
	> 150			> 150
	> fetchpacks=True
	> EOF			> EOF

	Single pack - repack does nothing			Single pack - repack does nothing
	$ hg prefetch -r 0			$ hg prefetch -r 0
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			[1]
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack			[1]
	$ hg repack --incremental			$ hg repack --incremental
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack			-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	3 gen1 packs, 1 gen0 pack - packs 3 gen1 into 1			3 gen1 packs, 1 gen0 pack - packs 3 gen1 into 1
	$ hg prefetch -r 1			$ hg prefetch -r 1
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 2			$ hg prefetch -r 2
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 3			$ hg prefetch -r 3
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	-r--r--r-- 65 6c499d21350d79f92fd556b4b7a902569d88e3c9.datapack
	-r--r--r-- 61 817d294043bd21a3de01f807721971abe45219ce.datapack
	-r--r--r-- 63 ff45add45ab3f59c4f75efc6a087d86c821219d6.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 254 077e7ce5dfe862dc40cc8f3c9742d96a056865f2.histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack
	-r--r--r-- 172 276d308429d0303762befa376788300f0310f90e.histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack			-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack
	$ hg repack --incremental			$ hg repack --incremental
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack
	-r--r--r-- 225 8fe685c56f6f7edf550bfcec74eeecc5f3c2ba15.datapack			-r--r--r-- 225 8fe685c56f6f7edf550bfcec74eeecc5f3c2ba15.datapack
				-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack			-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack
				-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	1 gen3 pack, 1 gen0 pack - does nothing			1 gen3 pack, 1 gen0 pack - does nothing
	$ hg repack --incremental			$ hg repack --incremental
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack
	-r--r--r-- 225 8fe685c56f6f7edf550bfcec74eeecc5f3c2ba15.datapack			-r--r--r-- 225 8fe685c56f6f7edf550bfcec74eeecc5f3c2ba15.datapack
				-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack			-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack
				-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	Pull should run background repack			Pull should run background repack
	$ cat >> .hg/hgrc <<EOF			$ cat >> .hg/hgrc <<EOF
	> [remotefilelog]			> [remotefilelog]
	> backgroundrepack=True			> backgroundrepack=True
	> EOF			> EOF
	$ clearcache			$ clearcache
	$ hg prefetch -r 0			$ hg prefetch -r 0
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 1			$ hg prefetch -r 1
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 2			$ hg prefetch -r 2
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 3			$ hg prefetch -r 3
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack
	-r--r--r-- 65 6c499d21350d79f92fd556b4b7a902569d88e3c9.datapack
	-r--r--r-- 61 817d294043bd21a3de01f807721971abe45219ce.datapack
	-r--r--r-- 63 ff45add45ab3f59c4f75efc6a087d86c821219d6.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 254 077e7ce5dfe862dc40cc8f3c9742d96a056865f2.histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack
	-r--r--r-- 172 276d308429d0303762befa376788300f0310f90e.histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	$ hg pull			$ hg pull
	pulling from ssh://user@dummy/master			pulling from ssh://user@dummy/master
	searching for changes			searching for changes
	no changes found			no changes found
	(running background incremental repack)			(running background incremental repack)
	$ sleep 0.5			$ sleep 0.5
	$ hg debugwaitonrepack >/dev/null 2>&1			$ hg debugwaitonrepack >/dev/null 2>&1
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 301 09b8bf49256b3fc2175977ba97d6402e91a9a604.datapack
	-r--r--r-- 225 8fe685c56f6f7edf550bfcec74eeecc5f3c2ba15.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack			-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack

	Test environment variable resolution			Test environment variable resolution
	$ CACHEPATH=$TESTTMP/envcache hg prefetch --config 'remotefilelog.cachepath=$CACHEPATH'			$ CACHEPATH=$TESTTMP/envcache hg prefetch --config 'remotefilelog.cachepath=$CACHEPATH'
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ find $TESTTMP/envcache \| sort			$ find $TESTTMP/envcache \| sort
	$TESTTMP/envcache			$TESTTMP/envcache
	$TESTTMP/envcache/master			$TESTTMP/envcache/master
	$TESTTMP/envcache/master/packs			$TESTTMP/envcache/master/95
	$TESTTMP/envcache/master/packs/54afbfda203716c1aa2636029ccc0df18165129e.dataidx			$TESTTMP/envcache/master/95/cb0bfd2977c761298d9624e4b4d4c72a39974a
	$TESTTMP/envcache/master/packs/54afbfda203716c1aa2636029ccc0df18165129e.datapack			$TESTTMP/envcache/master/95/cb0bfd2977c761298d9624e4b4d4c72a39974a/577959738234a1eb241ed3ed4b22a575833f56e0
	$TESTTMP/envcache/master/packs/dcebd8e8d4d97ee88e40dd8f92d8678c10e1a3ad.histidx			$TESTTMP/envcache/repos
	$TESTTMP/envcache/master/packs/dcebd8e8d4d97ee88e40dd8f92d8678c10e1a3ad.histpack

	Test local remotefilelog blob is correct when based on a pack			Test local remotefilelog blob is correct when based on a pack
	$ hg prefetch -r .			$ hg prefetch -r .
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ echo >> y			$ echo >> y
	$ hg commit -m y2			$ hg commit -m y2
	$ hg debugremotefilelog .hg/store/data/95cb0bfd2977c761298d9624e4b4d4c72a39974a/b70860edba4f8242a1d52f2a94679dd23cb76808			$ hg debugremotefilelog .hg/store/data/95cb0bfd2977c761298d9624e4b4d4c72a39974a/b70860edba4f8242a1d52f2a94679dd23cb76808
	size: 9 bytes			size: 9 bytes
	path: .hg/store/data/95cb0bfd2977c761298d9624e4b4d4c72a39974a/b70860edba4f8242a1d52f2a94679dd23cb76808			path: .hg/store/data/95cb0bfd2977c761298d9624e4b4d4c72a39974a/b70860edba4f8242a1d52f2a94679dd23cb76808
	key: b70860edba4f			key: b70860edba4f

	node => p1 p2 linknode copyfrom			node => p1 p2 linknode copyfrom
	b70860edba4f => 577959738234 000000000000 08d3fbc98c48			b70860edba4f => 577959738234 000000000000 08d3fbc98c48
	577959738234 => 1bb2e6237e03 000000000000 c7faf2fc439a x			577959738234 => 1bb2e6237e03 000000000000 c7faf2fc439a x
	1bb2e6237e03 => d4a3ed9310e5 000000000000 0b03bbc9e1e7			1bb2e6237e03 => d4a3ed9310e5 000000000000 0b03bbc9e1e7
	d4a3ed9310e5 => aee31534993a 000000000000 421535db10b6			d4a3ed9310e5 => aee31534993a 000000000000 421535db10b6
	aee31534993a => 1406e7411862 000000000000 a89d614e2364			aee31534993a => 1406e7411862 000000000000 a89d614e2364
	1406e7411862 => 000000000000 000000000000 b292c1e3311f			1406e7411862 => 000000000000 000000000000 b292c1e3311f

tests/test-remotefilelog-repack.t

	x			x

	Incremental repack			Incremental repack
	$ rm -rf $CACHEDIR/master/packs/*			$ rm -rf $CACHEDIR/master/packs/*
	$ cat >> .hg/hgrc <<EOF			$ cat >> .hg/hgrc <<EOF
	> [remotefilelog]			> [remotefilelog]
	> data.generations=60			> data.generations=60
	> 150			> 150
	> fetchpacks=True
	> EOF			> EOF

	Single pack - repack does nothing			Single pack - repack does nothing
	$ hg prefetch -r 0			$ hg prefetch -r 0
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			[1]
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack			[1]
	$ hg repack --incremental			$ hg repack --incremental
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack			-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	3 gen1 packs, 1 gen0 pack - packs 3 gen1 into 1			3 gen1 packs, 1 gen0 pack - packs 3 gen1 into 1
	$ hg prefetch -r 1			$ hg prefetch -r 1
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 2			$ hg prefetch -r 2
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 3			$ hg prefetch -r 38
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			abort: unknown revision '38'!
				[255]
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	-r--r--r-- 65 6c499d21350d79f92fd556b4b7a902569d88e3c9.datapack
	-r--r--r-- 61 817d294043bd21a3de01f807721971abe45219ce.datapack
	-r--r--r-- 63 ff45add45ab3f59c4f75efc6a087d86c821219d6.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 254 077e7ce5dfe862dc40cc8f3c9742d96a056865f2.histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack
	-r--r--r-- 172 276d308429d0303762befa376788300f0310f90e.histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack			-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	For the data packs, setting the limit for the repackmaxpacksize to be 64 such			For the data packs, setting the limit for the repackmaxpacksize to be 64 such
	that data pack with size 65 is more than the limit. This effectively ensures			that data pack with size 65 is more than the limit. This effectively ensures
	that no generation has 3 packs and therefore, no packs are chosen for the			that no generation has 3 packs and therefore, no packs are chosen for the
	incremental repacking. As for the history packs, setting repackmaxpacksize to be			incremental repacking. As for the history packs, setting repackmaxpacksize to be
	0 which should always result in no repacking.			0 which should always result in no repacking.
	$ hg repack --incremental --config remotefilelog.data.repackmaxpacksize=64 \			$ hg repack --incremental --config remotefilelog.data.repackmaxpacksize=64 \
	> --config remotefilelog.history.repackmaxpacksize=0			> --config remotefilelog.history.repackmaxpacksize=0
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 147 935861cae0be6ce41a0d47a529e4d097e9e68a69.datapack
	-r--r--r-- 65 6c499d21350d79f92fd556b4b7a902569d88e3c9.datapack			-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	-r--r--r-- 61 817d294043bd21a3de01f807721971abe45219ce.datapack
	-r--r--r-- 63 ff45add45ab3f59c4f75efc6a087d86c821219d6.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 254 077e7ce5dfe862dc40cc8f3c9742d96a056865f2.histpack			-r--r--r-- 254 077e7ce5dfe862dc40cc8f3c9742d96a056865f2.histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack
	-r--r--r-- 172 276d308429d0303762befa376788300f0310f90e.histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack			-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	Setting limit for the repackmaxpacksize to be the size of the biggest pack file			Setting limit for the repackmaxpacksize to be the size of the biggest pack file
	which ensures that it is effectively ignored in the incremental repacking.			which ensures that it is effectively ignored in the incremental repacking.
	$ hg repack --incremental --config remotefilelog.data.repackmaxpacksize=65 \			$ hg repack --incremental --config remotefilelog.data.repackmaxpacksize=65 \
	> --config remotefilelog.history.repackmaxpacksize=336			> --config remotefilelog.history.repackmaxpacksize=336
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 147 935861cae0be6ce41a0d47a529e4d097e9e68a69.datapack
	-r--r--r-- 225 8fe685c56f6f7edf550bfcec74eeecc5f3c2ba15.datapack			-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack			-r--r--r-- 254 077e7ce5dfe862dc40cc8f3c9742d96a056865f2.histpack
				-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	1 gen3 pack, 1 gen0 pack - does nothing			1 gen3 pack, 1 gen0 pack - does nothing
	$ hg repack --incremental			$ hg repack --incremental
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 147 935861cae0be6ce41a0d47a529e4d097e9e68a69.datapack
	-r--r--r-- 225 8fe685c56f6f7edf550bfcec74eeecc5f3c2ba15.datapack			-r--r--r-- 67 b5a62f3496ccbd2479497cdbc7345f3304735f33.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack			-r--r--r-- 254 077e7ce5dfe862dc40cc8f3c9742d96a056865f2.histpack
				-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	Pull should run background repack			Pull should run background repack
	$ cat >> .hg/hgrc <<EOF			$ cat >> .hg/hgrc <<EOF
	> [remotefilelog]			> [remotefilelog]
	> backgroundrepack=True			> backgroundrepack=True
	> EOF			> EOF
	$ clearcache			$ clearcache
	$ hg prefetch -r 0			$ hg prefetch -r 0
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 1			$ hg prefetch -r 1
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 2			$ hg prefetch -r 2
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ hg prefetch -r 3			$ hg prefetch -r 3
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack
	-r--r--r-- 65 6c499d21350d79f92fd556b4b7a902569d88e3c9.datapack
	-r--r--r-- 61 817d294043bd21a3de01f807721971abe45219ce.datapack
	-r--r--r-- 63 ff45add45ab3f59c4f75efc6a087d86c821219d6.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 254 077e7ce5dfe862dc40cc8f3c9742d96a056865f2.histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack
	-r--r--r-- 172 276d308429d0303762befa376788300f0310f90e.histpack
	-r--r--r-- 90 c3399b56e035f73c3295276ed098235a08a0ed8c.histpack

	$ hg pull			$ hg pull
	pulling from ssh://user@dummy/master			pulling from ssh://user@dummy/master
	searching for changes			searching for changes
	no changes found			no changes found
	(running background incremental repack)			(running background incremental repack)
	$ sleep 0.5			$ sleep 0.5
	$ hg debugwaitonrepack >/dev/null 2>&1			$ hg debugwaitonrepack >/dev/null 2>&1
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep datapack
	-r--r--r-- 59 5b7dec902026f0cddb0ef8acb62f27b5698494d4.datapack			-r--r--r-- 301 09b8bf49256b3fc2175977ba97d6402e91a9a604.datapack
	-r--r--r-- 225 8fe685c56f6f7edf550bfcec74eeecc5f3c2ba15.datapack
	$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack			$ ls_l $TESTTMP/hgcache/master/packs/ \| grep histpack
	-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack			-r--r--r-- 336 094b530486dad4427a0faf6bcbc031571b99ca24.histpack

	Test environment variable resolution			Test environment variable resolution
	$ CACHEPATH=$TESTTMP/envcache hg prefetch --config 'remotefilelog.cachepath=$CACHEPATH'			$ CACHEPATH=$TESTTMP/envcache hg prefetch --config 'remotefilelog.cachepath=$CACHEPATH'
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ find $TESTTMP/envcache \| sort			$ find $TESTTMP/envcache \| sort
	$TESTTMP/envcache			$TESTTMP/envcache
	$TESTTMP/envcache/master			$TESTTMP/envcache/master
	$TESTTMP/envcache/master/packs			$TESTTMP/envcache/master/95
	$TESTTMP/envcache/master/packs/54afbfda203716c1aa2636029ccc0df18165129e.dataidx			$TESTTMP/envcache/master/95/cb0bfd2977c761298d9624e4b4d4c72a39974a
	$TESTTMP/envcache/master/packs/54afbfda203716c1aa2636029ccc0df18165129e.datapack			$TESTTMP/envcache/master/95/cb0bfd2977c761298d9624e4b4d4c72a39974a/577959738234a1eb241ed3ed4b22a575833f56e0
	$TESTTMP/envcache/master/packs/dcebd8e8d4d97ee88e40dd8f92d8678c10e1a3ad.histidx			$TESTTMP/envcache/repos
	$TESTTMP/envcache/master/packs/dcebd8e8d4d97ee88e40dd8f92d8678c10e1a3ad.histpack

	Test local remotefilelog blob is correct when based on a pack			Test local remotefilelog blob is correct when based on a pack
	$ hg prefetch -r .			$ hg prefetch -r .
	1 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
	$ echo >> y			$ echo >> y
	$ hg commit -m y2			$ hg commit -m y2
	$ hg debugremotefilelog .hg/store/data/95cb0bfd2977c761298d9624e4b4d4c72a39974a/b70860edba4f8242a1d52f2a94679dd23cb76808			$ hg debugremotefilelog .hg/store/data/95cb0bfd2977c761298d9624e4b4d4c72a39974a/b70860edba4f8242a1d52f2a94679dd23cb76808
	size: 9 bytes			size: 9 bytes
	path: .hg/store/data/95cb0bfd2977c761298d9624e4b4d4c72a39974a/b70860edba4f8242a1d52f2a94679dd23cb76808			path: .hg/store/data/95cb0bfd2977c761298d9624e4b4d4c72a39974a/b70860edba4f8242a1d52f2a94679dd23cb76808
	key: b70860edba4f			key: b70860edba4f

	node => p1 p2 linknode copyfrom			node => p1 p2 linknode copyfrom
	b70860edba4f => 577959738234 000000000000 08d3fbc98c48			b70860edba4f => 577959738234 000000000000 08d3fbc98c48
	577959738234 => 1bb2e6237e03 000000000000 c7faf2fc439a x			577959738234 => 1bb2e6237e03 000000000000 c7faf2fc439a x
	1bb2e6237e03 => d4a3ed9310e5 000000000000 0b03bbc9e1e7			1bb2e6237e03 => d4a3ed9310e5 000000000000 0b03bbc9e1e7
	d4a3ed9310e5 => aee31534993a 000000000000 421535db10b6			d4a3ed9310e5 => aee31534993a 000000000000 421535db10b6
	aee31534993a => 1406e7411862 000000000000 a89d614e2364			aee31534993a => 1406e7411862 000000000000 a89d614e2364
	1406e7411862 => 000000000000 000000000000 b292c1e3311f			1406e7411862 => 000000000000 000000000000 b292c1e3311f

	Test limiting the max delta chain length			Test limiting the max delta chain length
	$ hg repack --config packs.maxchainlen=1			$ hg repack --config packs.maxchainlen=1
	$ hg debugdatapack $TESTTMP/hgcache/master/packs/*.dataidx			$ hg debugdatapack $TESTTMP/hgcache/master/packs/*.dataidx
	$TESTTMP/hgcache/master/packs/a2731c9a16403457b67337a620931797fce8c821:			$TESTTMP/hgcache/master/packs/a8378d888fe4325250720e51311a65d2509be742:
	x:			x:
	Node Delta Base Delta Length Blob Size			Node Delta Base Delta Length Blob Size
	1bb2e6237e03 000000000000 8 8			1bb2e6237e03 000000000000 8 8
	d4a3ed9310e5 1bb2e6237e03 12 6			d4a3ed9310e5 1bb2e6237e03 12 6
	aee31534993a 000000000000 4 4			aee31534993a 000000000000 4 4
	1406e7411862 aee31534993a 12 2			1406e7411862 aee31534993a 12 2

	Total: 36 20 (80.0% bigger)			Total: 36 20 (80.0% bigger)
	y:			y:
	Node Delta Base Delta Length Blob Size			Node Delta Base Delta Length Blob Size
	577959738234 000000000000 8 8			577959738234 000000000000 70 8

	Total: 8 8 (0.0% bigger)			Total: 70 8 (775.0% bigger)

	Test huge pack cleanup using different values of packs.maxpacksize:			Test huge pack cleanup using different values of packs.maxpacksize:
	$ hg repack --incremental --debug			$ hg repack --incremental --debug
	$ hg repack --incremental --debug --config packs.maxpacksize=512			$ hg repack --incremental --debug --config packs.maxpacksize=512
	removing oversize packfile $TESTTMP/hgcache/master/packs/a2731c9a16403457b67337a620931797fce8c821.datapack (365 bytes)			removing oversize packfile $TESTTMP/hgcache/master/packs/a8378d888fe4325250720e51311a65d2509be742.datapack (426 bytes)
	removing oversize packfile $TESTTMP/hgcache/master/packs/a2731c9a16403457b67337a620931797fce8c821.dataidx (1.21 KB)			removing oversize packfile $TESTTMP/hgcache/master/packs/a8378d888fe4325250720e51311a65d2509be742.dataidx (1.21 KB)

	Do a repack where the new pack reuses a delta from the old pack			Do a repack where the new pack reuses a delta from the old pack
	$ clearcache			$ clearcache
	$ hg prefetch -r '2::3'			$ hg prefetch -r '2::3'
	2 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob)
	$ hg repack			$ hg repack
	$ hg debugdatapack $CACHEDIR/master/packs/*.datapack			$ hg debugdatapack $CACHEDIR/master/packs/*.datapack
	$TESTTMP/hgcache/master/packs/abf210f6c3aa4dd0ecc7033633ad73591be16c95:			$TESTTMP/hgcache/master/packs/abf210f6c3aa4dd0ecc7033633ad73591be16c95:
	x:			x:
	Node Delta Base Delta Length Blob Size			Node Delta Base Delta Length Blob Size
	1bb2e6237e03 000000000000 8 8			1bb2e6237e03 000000000000 8 8
	d4a3ed9310e5 1bb2e6237e03 12 6			d4a3ed9310e5 1bb2e6237e03 12 6

	Total: 20 14 (42.9% bigger)			Total: 20 14 (42.9% bigger)
	$ hg prefetch -r '0::1'			$ hg prefetch -r '0::1'
	2 files fetched over 1 fetches - (0 misses, 100.00% hit ratio) over * (glob)			2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob)
	$ hg repack			$ hg repack
	$ hg debugdatapack $CACHEDIR/master/packs/*.datapack			$ hg debugdatapack $CACHEDIR/master/packs/*.datapack
	$TESTTMP/hgcache/master/packs/09b8bf49256b3fc2175977ba97d6402e91a9a604:			$TESTTMP/hgcache/master/packs/09b8bf49256b3fc2175977ba97d6402e91a9a604:
	x:			x:
	Node Delta Base Delta Length Blob Size			Node Delta Base Delta Length Blob Size
	1bb2e6237e03 000000000000 8 8			1bb2e6237e03 000000000000 8 8
	d4a3ed9310e5 1bb2e6237e03 12 6			d4a3ed9310e5 1bb2e6237e03 12 6
	aee31534993a d4a3ed9310e5 12 4			aee31534993a d4a3ed9310e5 12 4
	1406e7411862 aee31534993a 12 2			1406e7411862 aee31534993a 12 2

	Total: 44 20 (120.0% bigger)			Total: 44 20 (120.0% bigger)