Mercurial > hg-stable
view tests/test-pull-r.t @ 26402:05871262acd5
treemanifest: rework lazy-copying code (issue4840)
The old lazy-copy code formed a chain of copied manifests with each
copy. Under typical operation, the stack never got more than a couple
of manifests deep and was fine. Under conditions like hgsubversion or
convert, the stack could get hundreds of manifests deep, and
eventually overflow the recursion limit for Python. I was able to
consistently reproduce this by converting an hgsubversion clone of
svn's history to treemanifests.
This may result in fewer manifests staying in memory during operations
like convert when treemanifests are in use, and should make those
operations faster since there will be significantly fewer noop
function calls going on.
A previous attempt (never mailed) of mine to fix this problem tried to
simply have all treemanifests only have a loadfunc - that caused
somewhat weird problems because the gettext() callable passed into
read() wasn't idempotent, so the easy solution is to have a loadfunc
and a copyfunc.
author | Augie Fackler <augie@google.com> |
---|---|
date | Fri, 25 Sep 2015 22:54:46 -0400 |
parents | 9263f86b9681 |
children | e01bd7385f4f |
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$ hg init repo $ cd repo $ echo foo > foo $ hg ci -qAm 'add foo' $ echo >> foo $ hg ci -m 'change foo' $ hg up -qC 0 $ echo bar > bar $ hg ci -qAm 'add bar' $ hg log changeset: 2:effea6de0384 tag: tip parent: 0:bbd179dfa0a7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add bar changeset: 1:ed1b79f46b9a user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: change foo changeset: 0:bbd179dfa0a7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add foo $ cd .. don't show "(+1 heads)" message when pulling closed head $ hg clone -q repo repo2 $ hg clone -q repo2 repo3 $ cd repo2 $ hg up -q 0 $ echo hello >> foo $ hg ci -mx1 created new head $ hg ci -mx2 --close-branch $ cd ../repo3 $ hg heads -q --closed 2:effea6de0384 1:ed1b79f46b9a $ hg pull pulling from $TESTTMP/repo2 (glob) searching for changes adding changesets adding manifests adding file changes added 2 changesets with 1 changes to 1 files (run 'hg update' to get a working copy) $ hg heads -q --closed 4:00cfe9073916 2:effea6de0384 1:ed1b79f46b9a $ cd .. $ hg init copy $ cd copy Pull a missing revision: $ hg pull -qr missing ../repo abort: unknown revision 'missing'! [255] Pull multiple revisions with update: $ hg pull -qu -r 0 -r 1 ../repo $ hg -q parents 0:bbd179dfa0a7 $ hg rollback repository tip rolled back to revision -1 (undo pull) working directory now based on revision -1 $ hg pull -qr 0 ../repo $ hg log changeset: 0:bbd179dfa0a7 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add foo $ hg pull -qr 1 ../repo $ hg log changeset: 1:ed1b79f46b9a tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: change foo changeset: 0:bbd179dfa0a7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add foo This used to abort: received changelog group is empty: $ hg pull -qr 1 ../repo Test race condition with -r and -U (issue4707) We pull '-U -r <name>' and the name change right after/during the changegroup emission. We use http because http is better is our racy-est option. $ echo babar > ../repo/jungle $ cat <<EOF > ../repo/.hg/hgrc > [hooks] > outgoing.makecommit = hg ci -Am 'racy commit'; echo committed in pull-race > EOF $ hg -R ../repo serve -p $HGPORT2 -d --pid-file=../repo.pid $ cat ../repo.pid >> $DAEMON_PIDS $ hg pull --rev default --update http://localhost:$HGPORT2/ pulling from http://localhost:$HGPORT2/ searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg log -G @ changeset: 2:effea6de0384 | tag: tip | parent: 0:bbd179dfa0a7 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: add bar | | o changeset: 1:ed1b79f46b9a |/ user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: change foo | o changeset: 0:bbd179dfa0a7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add foo $ cd ..