Xavier Deguillard 74e48dfde3 treemanifest: delay packfile addition when using linkrev ... Summary: In order to provide fast "hg blame" for a file, Mercurial keeps an auxiliary data attached to every filenode: the linknode. This linknode is a backpointer to the revision that introduced the linknode. While the linknode allows for very fast blame, it also has a big drawback: the commit DAG has cycles. This makes for an awkward commit logic where the data needed by a commit also needs the commit hash. The solution that was taken up to now was to delay the write to the historypack until it's closed and use "linkrev" until then. By the time the historypack is closed the changelog will have been updated and the linkrev can be resolved to a valid linknode. The drawback of this solution is that the historypack (and other future stores) needs to have an understanding of what the changelog is to be able to interpret linkrevs. It also prevents the store from being able to blindly store data on disk as it is received. For now, let's solve this by moving the handling of linkrev one layer up, and recognizing when a linkrev is used and simply waiting until the changelog is updated before adding the resolved linknode to the historypack. A better solution to this problem is to simply not have a linknode in the historypack, and instead have an auxiliary file where linknodes are stored. This will remove the chicken-egg issue as this auxiliary file can be written after the changelog is updated. Most of the logic in this patch was inspired by a similar hack in remotefilelog. Reviewed By: DurhamG Differential Revision: D15684624 fbshipit-source-id: 578c42349d6c6f572ff578de0495f2e762814cd2		2019-06-17 14:01:30 -07:00
..
absorb	mutation: add absorb support	2019-04-11 02:45:16 -07:00
amend	strip: alias strip to hide instead of prune	2019-06-03 08:48:25 -07:00
commitcloud	add hg cloud status command	2019-06-13 05:53:22 -07:00
convert	subrepo: remove subrepo support	2019-03-11 10:43:55 -07:00
extlib	rust: update to 2018 edition	2019-06-03 07:22:36 -07:00
fastannotate	hgext: reformat using black	2019-03-13 18:35:09 -07:00
fastmanifest	manifest: remove readfast, replace readdelta	2019-05-24 10:00:49 -07:00
fsmonitor	debugrefreshwatchmanclock: don't trigger commitcloud autobackup	2019-05-16 02:40:26 -07:00
hgevents	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
hggit	hggit: stop git-updatemeta walk when we finish commits with extras	2019-03-20 14:33:58 -07:00
hgsubversion	hgsubversion: move to absolute import	2019-05-21 09:15:21 -07:00
highlight	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
infinitepush	infinitepush: add replaybookmarksqueue	2019-06-17 06:19:12 -07:00
lfs	tracing: record lfs download size	2019-05-03 13:09:33 -07:00
memcommit	memcommit: enforce target parent to be original parent	2019-03-13 11:50:42 -07:00
p4fastimport	Make importer respect commits not done by itself	2019-05-10 10:10:57 -07:00
perfsuite	metrics: slightly change the API	2019-03-20 22:49:18 -07:00
pushrebase	disable pushrebase during infinitepush	2019-05-31 08:57:14 -07:00
remotefilelog	edenapi: add support for streaming responses	2019-06-13 10:18:46 -07:00
repogenerator	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
treemanifest	treemanifest: delay packfile addition when using linkrev	2019-06-17 14:01:30 -07:00
__init__.py	codemod: move Python packages to edenscm	2019-01-28 18:35:41 -08:00
arcdiff.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
automv.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
blackbox.py	blackbox: only log current commit if the changelog has been loaded	2019-05-30 04:02:54 -07:00
catnotate.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
checkmessagehook.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
checkserverbookmark.py	mononoke: review bookmarks: embed hg extension	2019-06-12 06:13:28 -07:00
chistedit.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
churn.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
cleanobsstore.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
clienttelemetry.py	blackbox: clean up blackbox logging and log more during rage	2019-04-23 02:48:50 -07:00
clindex.pyx	blackbox: clean up blackbox logging and log more during rage	2019-04-23 02:48:50 -07:00
clonebundles.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
commitextras.py	test-revset: do not use "hg branch" directly	2019-02-14 17:44:39 -08:00
conflictinfo.py	hgext: reformat using black	2019-03-13 18:35:09 -07:00
copytrace.py	copytrace: fix an issue where undesirable entries are reported	2019-02-25 12:43:20 -08:00
crdump.py	hgext: reformat using black	2019-03-13 18:35:09 -07:00
debugcommitmessage.py	subrepo: remove subrepo support	2019-03-11 10:43:55 -07:00
debugshell.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
dialect.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
directaccess.py	branchmap: drop revbranchcache and other unused logic	2019-02-22 21:02:41 -08:00
dirsync.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
disablesymlinks.py	disablesymlinks: add extension to disable symlinks	2019-02-06 08:41:34 -08:00
drop.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
edrecord.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
eol.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
errorredirect.py	blackbox: clean up blackbox logging and log more during rage	2019-04-23 02:48:50 -07:00
extdiff.py	subrepo: remove subrepo support	2019-03-11 10:43:55 -07:00
extorder.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
extutil.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
fastlog.py	fastlog: patch follow revset instead	2019-04-16 22:19:19 -07:00
fbconduit.py	globalrevs: allow scmquery based lookups from 'globalrev->hash' on clients	2019-06-04 11:59:12 -07:00
fbhistedit.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
fixcorrupt.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
generic_bisect.py	codemod: move Python packages to edenscm	2019-01-28 18:35:41 -08:00
githelp.py	githelp: update branch -d suggestions	2019-06-03 08:48:25 -07:00
gitlookup.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
gitrevset.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
globalrevs.py	globalrevs: avoid scanning changelog when looking for commit with svnrev 0	2019-06-14 18:29:40 -07:00
gpg.py	hgext: reformat using black	2019-03-13 18:35:09 -07:00
grepdiff.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
grpcheck.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
hgsql.py	hgsql: use mmap for hgsql revlog validation	2019-05-23 10:50:29 -07:00
hiddenerror.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
histedit.py	histedit: fix call to hex in loginfo	2019-04-12 01:57:56 -07:00
infinitepushbackup.py	commitcloud: incorporate infinitepush backups into commitcloud	2019-05-20 06:19:47 -07:00
interactiveui.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
journal.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
linkrevcache.py	manifest: remove readfast, replace readdelta	2019-05-24 10:00:49 -07:00
logginghelper.py	logginghelper: log normalized repo name	2019-03-04 00:05:00 -08:00
lz4revlog.py	rust: move bindings to a single python extension	2019-02-01 17:53:22 -08:00
mergedriver.py	tracing: trace mergedriver	2019-05-09 08:08:19 -07:00
morecolors.py	blackbox: clean up blackbox logging and log more during rage	2019-04-23 02:48:50 -07:00
morestatus.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
myparent.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
nointerrupt.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
ownercheck.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
patchrmdir.pyx	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
phabdiff.py	hg | phabdiff | Properly handle both 't' and 'T' prefixes for tasks when parsing them out of commit messages.	2019-04-29 14:41:38 -07:00
phabstatus.py	hgext: reformat using black	2019-03-13 18:35:09 -07:00
phrevset.py	phrevset: avoid crashing on null graphql reply	2019-04-09 07:53:43 -07:00
progressfile.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
pullcreatemarkers.py	visibility: pullcreatemarkers should exclude hidden commits	2019-04-11 07:49:21 -07:00
purge.py	docs: fix doc indentation error	2019-05-08 09:09:07 -07:00
rage.py	add hg cloud status in hg pasterage output	2019-06-13 05:53:22 -07:00
rebase.py	blackbox: clean up blackbox logging and log more during rage	2019-04-23 02:48:50 -07:00
remotenames.py	remotenames: fix positional args for selectivepull	2019-06-17 11:45:55 -07:00
reset.py	reset: fix visibility interaction	2019-05-03 17:44:51 -07:00
sampling.py	sampling: silence BaseException.message deprecation warning	2019-04-22 17:58:07 -07:00
schemes.py	hgext: reformat using black	2019-03-13 18:35:09 -07:00
sendunbundlereplay.py	mononoke-replay: move unbundlereplay and checkserverbookmark to util.timed	2019-05-25 10:57:49 -07:00
share.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
shelve.py	visibility: add shelve support	2019-04-26 01:07:30 -07:00
sigtrace.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
simplecache.py	simplecache: add checksum to simplecache values	2019-02-20 13:56:33 -08:00
smartlog.py	ui: add labelled prefixes to ui.write	2019-05-09 06:55:11 -07:00
sparse.py	blackbox: clean up blackbox logging and log more during rage	2019-04-23 02:48:50 -07:00
sshaskpass.py	sshaskpass: workaround sys.executable	2019-02-26 18:19:43 -08:00
stablerev.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
stat.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
traceprof.pyx	codemod: move Python packages to edenscm	2019-01-28 18:35:41 -08:00
tweakdefaults.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
undo.py	visibility: support undo after split	2019-04-26 01:07:30 -07:00
whereami.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
win32mbcs.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00
win32text.py	codemod: import from the edenscm package	2019-01-29 17:25:32 -08:00