Mercurial > hg
view tests/test-bookmarks-corner-case.t @ 42415:c767e655ffda
narrow: use narrow_widen wireproto command to widen in case of ellipses
Few releases ago, we introduce narrow_widen wireproto command to be used to widen
narrow repositories. Before this patch, that was used in non-ellipses cases
only. In ellipses cases, we still do exchange.pull() which can pull more data
than required.
After this patch, the client will first check whether server supports doing
ellipses widening using wireproto command or not by checking server's wireproto
capability. If the server is upto date and support latest ellipses capability,
we call the wireproto command. Otherwise we fallback to exchange.pull() like
before.
The compat code make sure that things works even if one of the client or server
is old. The initial version of this patch does not had this compat code. It's
added to help Google release things smoothly internally. I plan to drop the
compat code before the upcoming major release.
Due to change to wireproto command, the code looks a bit dirty, next patches
will clean that up.
Differential Revision: https://phab.mercurial-scm.org/D6436
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Wed, 22 May 2019 02:59:48 +0530 |
parents | 055687fe4c47 |
children | 5b217451a2c2 |
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================================ Test corner case around bookmark ================================ This test file is meant to gather test around bookmark that are specific enough to not find a place elsewhere. Test bookmark/changelog race condition ====================================== The data from the bookmark file are filtered to only contains bookmark with node known to the changelog. If the cache invalidation between these two bits goes wrong, bookmark can be dropped. global setup ------------ $ cat >> $HGRCPATH << EOF > [ui] > ssh = "$PYTHON" "$TESTDIR/dummyssh" > [server] > concurrent-push-mode=check-related > EOF Setup ----- initial repository setup $ hg init bookrace-server $ cd bookrace-server $ echo a > a $ hg add a $ hg commit -m root $ echo a >> a $ hg bookmark book-A $ hg commit -m A0 $ hg up 'desc(root)' 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (leaving bookmark book-A) $ echo b > b $ hg add b $ hg bookmark book-B $ hg commit -m B0 created new head $ hg up null 0 files updated, 0 files merged, 2 files removed, 0 files unresolved (leaving bookmark book-B) $ hg phase --public --rev 'all()' $ hg log -G o changeset: 2:c79985706978 | bookmark: book-B | tag: tip | parent: 0:6569b5a81c7e | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: B0 | | o changeset: 1:39c28d785860 |/ bookmark: book-A | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: A0 | o changeset: 0:6569b5a81c7e user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: root $ hg book book-A 1:39c28d785860 book-B 2:c79985706978 $ cd .. Add new changeset on each bookmark in distinct clones $ hg clone ssh://user@dummy/bookrace-server client-A requesting all changes adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 2 files (+1 heads) new changesets 6569b5a81c7e:c79985706978 updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R client-A update book-A 1 files updated, 0 files merged, 1 files removed, 0 files unresolved (activating bookmark book-A) $ echo a >> client-A/a $ hg -R client-A commit -m A1 $ hg clone ssh://user@dummy/bookrace-server client-B requesting all changes adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 2 files (+1 heads) new changesets 6569b5a81c7e:c79985706978 updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R client-B update book-B 0 files updated, 0 files merged, 0 files removed, 0 files unresolved (activating bookmark book-B) $ echo b >> client-B/b $ hg -R client-B commit -m B1 extension to reproduce the race ------------------------------- If two process are pushing we want to make sure the following happens: * process A read changelog * process B to its full push * process A read bookmarks * process A proceed with rest of the push We build a server side extension for this purpose $ cat > bookrace.py << EOF > import atexit > import os > import time > from mercurial import bookmarks, error, extensions > def wrapinit(orig, self, repo): > if not os.path.exists('push-A-started'): > print('setting raced push up') > with open('push-A-started', 'w'): > pass > clock = 300 > while not os.path.exists('push-B-done'): > clock -= 1 > if clock <= 0: > raise error.Abort("race scenario timed out") > time.sleep(0.1) > return orig(self, repo) > > repo.__class__ = racedrepo > def uisetup(ui): > extensions.wrapfunction(bookmarks.bmstore, '__init__', wrapinit) > def e(): > with open('push-A-done', 'w'): > pass > atexit.register(e) > EOF Actual test ----------- Start the raced push. $ cat >> bookrace-server/.hg/hgrc << EOF > [extensions] > bookrace=$TESTTMP/bookrace.py > EOF $ hg push -R client-A -r book-A >push-output.txt 2>&1 & Wait up to 30 seconds for that push to start. $ clock=30 $ while [ ! -f push-A-started ] && [ $clock -gt 0 ] ; do > clock=`expr $clock - 1` > sleep 1 > done Do the other push. $ cat >> bookrace-server/.hg/hgrc << EOF > [extensions] > bookrace=! > EOF $ hg push -R client-B -r book-B pushing to ssh://user@dummy/bookrace-server searching for changes remote: adding changesets remote: adding manifests remote: adding file changes remote: added 1 changesets with 1 changes to 1 files updating bookmark book-B Signal the raced put that we are done (it waits up to 30 seconds). $ touch push-B-done Wait for the raced push to finish (with the remaning of the initial 30 seconds). $ while [ ! -f push-A-done ] && [ $clock -gt 0 ] ; do > clock=`expr $clock - 1` > sleep 1 > done Check raced push output. $ cat push-output.txt pushing to ssh://user@dummy/bookrace-server searching for changes remote: setting raced push up remote: adding changesets remote: adding manifests remote: adding file changes remote: added 1 changesets with 1 changes to 1 files updating bookmark book-A Check result of the push. $ hg -R bookrace-server log -G o changeset: 4:9ce3b28c16de | bookmark: book-A | tag: tip | parent: 1:39c28d785860 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: A1 | | o changeset: 3:f26c3b5167d1 | | bookmark: book-B | | user: test | | date: Thu Jan 01 00:00:00 1970 +0000 | | summary: B1 | | | o changeset: 2:c79985706978 | | parent: 0:6569b5a81c7e | | user: test | | date: Thu Jan 01 00:00:00 1970 +0000 | | summary: B0 | | o | changeset: 1:39c28d785860 |/ user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: A0 | o changeset: 0:6569b5a81c7e user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: root $ hg -R bookrace-server book book-A 4:9ce3b28c16de book-B 3:f26c3b5167d1