Mercurial > hg
view tests/test-narrow-copies.t @ 42715:f59f8a5e9096 stable
fncache: make debugrebuildfncache not fail on broken fncache
The code reading the fncache changed in 5.0, to complain if the file
is not \n terminated. This makes apparent the fact that the fncache
gets corrupted.
Make it possible to recover, instead of having `hg
debugrebuildfncache` failing by saying `(run hg debugrebuildfncache)`.
The corruption itself is most likely due to hg not using fsync in
general, and so various bad things can happen. Here, the reported
problems happened when running out of disk space. So I suspect that
because the fncache is much bigger than the average commit/pull, when
running out of disk space, the bulk of the pull may succeed, but the
new fncache may get half-written and still renamed into place.
Differential Revision: https://phab.mercurial-scm.org/D6722
author | Valentin Gatien-Baron <vgatien-baron@janestreet.com> |
---|---|
date | Mon, 12 Aug 2019 14:00:19 -0400 |
parents | 07a66c1387d1 |
children | f90a5c211251 |
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$ . "$TESTDIR/narrow-library.sh" create full repo $ hg init master $ cd master $ mkdir inside $ echo inside > inside/f1 $ mkdir outside $ echo outside > outside/f2 $ hg ci -Aqm 'initial' $ hg mv outside/f2 inside/f2 $ hg ci -qm 'move f2 from outside' $ echo modified > inside/f2 $ hg ci -qm 'modify inside/f2' $ mkdir outside $ echo new > outside/f3 $ hg ci -Aqm 'add outside/f3' $ cd .. $ hg clone --narrow ssh://user@dummy/master narrow --include inside -r 2 adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 2 files new changesets *:* (glob) updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd narrow $ hg co 'desc("move f2")' 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg status $ hg diff $ hg diff --change . --git diff --git a/inside/f2 b/inside/f2 new file mode 100644 --- /dev/null +++ b/inside/f2 @@ -0,0 +1,1 @@ +outside $ hg log --follow inside/f2 -r tip changeset: 2:bcfb756e0ca9 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: modify inside/f2 changeset: 1:5a016133b2bb user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: move f2 from outside $ echo new > inside/f4 $ hg ci -Aqm 'add inside/f4' $ hg pull -q $ hg --config extensions.rebase= rebase -d tip rebasing 3:4f84b666728c "add inside/f4" saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/4f84b666728c-4269b76e-rebase.hg $ hg co -q 0 $ echo modified > inside/f1 $ hg ci -qm 'modify inside/f1' $ echo new > inside/f5 $ hg ci -Aqm 'add inside/f5' $ hg --config extensions.rebase= rebase -d 'public()' -r . rebasing 6:610b60178c28 "add inside/f5" (tip) saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/610b60178c28-65716a78-rebase.hg