Mercurial > hg
view tests/test-strip-cross.t @ 24787:9d5c27890790
largefiles: for update -C, only update largefiles when necessary
Before, a --clean update with largefiles would use the "optimization" that it
didn't read hashes from standin files before and after the update. Instead of
trusting the content of the standin files, it would rehash all the actual
largefiles that lfdirstate reported clean and update the standins that didn't
have the expected content. It could thus in some "impossible" situations
automatically recover from some "largefile got out sync with its standin"
issues (even there apparently still were weird corner cases where it could
fail). This extra checking is similar to what core --clean intentionally do
not do, and it made update --clean unbearable slow.
Usually in core Mercurial, --clean will rely on the dirstate to find the files
it should update. (It is thus intentionally possible (when trying to trick the
system or if there should be bugs) to end up in situations where --clean not
will restore the working directory content correctly.) Checking every file when
we "know" it is ok is however not an option - that would be too slow.
Instead, trust the content of the standin files. Use the same logic for --clean
as for linear updates and trust the dirstate and that our "logic" will keep
them in sync. It is much cheaper to just rehash the largefiles reported dirty
by a status walk and read all standins than to hash largefiles.
Most of the changes are just a change of indentation now when the different
kinds of updates no longer are handled that differently. Standins for added
files are however only written when doing a normal update, while deleted and
removed files only will be updated for --clean updates.
author | Mads Kiilerich <madski@unity3d.com> |
---|---|
date | Wed, 15 Apr 2015 15:22:16 -0400 |
parents | aa9385f983fa |
children | 009d0283de5f |
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test stripping of filelogs where the linkrev doesn't always increase $ echo '[extensions]' >> $HGRCPATH $ echo 'strip =' >> $HGRCPATH $ hg init orig $ cd orig $ commit() > { > hg up -qC null > count=1 > for i in "$@"; do > for f in $i; do > echo $count > $f > done > count=`expr $count + 1` > done > hg commit -qAm "$*" > } 2 1 0 2 0 1 2 $ commit '201 210' $ commit '102 120' '210' $ commit '021' $ commit '201' '021 120' $ commit '012 021' '102 201' '120 210' $ commit 'manifest-file' $ commit '102 120' '012 210' '021 201' $ commit '201 210' '021 120' '012 102' $ HGUSER=another-user; export HGUSER $ commit 'manifest-file' $ commit '012' 'manifest-file' $ cd .. $ hg clone -q -U -r -1 -r -2 -r -3 -r -4 -r -6 orig crossed $ cd crossed $ hg debugindex --manifest rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 112 ..... 0 6f105cbb914d 000000000000 000000000000 (re) 1 112 56 ..... 3 1b55917b3699 000000000000 000000000000 (re) 2 168 123 ..... 1 8f3d04e263e5 000000000000 000000000000 (re) 3 291 122 ..... 2 f0ef8726ac4f 000000000000 000000000000 (re) 4 413 87 ..... 4 0b76e38b4070 000000000000 000000000000 (re) $ for i in 012 021 102 120 201 210 manifest-file; do > echo $i > hg debugindex $i > echo > done 012 rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 3 ..... 0 b8e02f643373 000000000000 000000000000 (re) 1 3 3 ..... 1 5d9299349fc0 000000000000 000000000000 (re) 2 6 3 ..... 2 2661d26c6496 000000000000 000000000000 (re) 021 rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 3 ..... 0 b8e02f643373 000000000000 000000000000 (re) 1 3 3 ..... 2 5d9299349fc0 000000000000 000000000000 (re) 2 6 3 ..... 1 2661d26c6496 000000000000 000000000000 (re) 102 rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 3 ..... 1 b8e02f643373 000000000000 000000000000 (re) 1 3 3 ..... 0 5d9299349fc0 000000000000 000000000000 (re) 2 6 3 ..... 2 2661d26c6496 000000000000 000000000000 (re) 120 rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 3 ..... 1 b8e02f643373 000000000000 000000000000 (re) 1 3 3 ..... 2 5d9299349fc0 000000000000 000000000000 (re) 2 6 3 ..... 0 2661d26c6496 000000000000 000000000000 (re) 201 rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 3 ..... 2 b8e02f643373 000000000000 000000000000 (re) 1 3 3 ..... 0 5d9299349fc0 000000000000 000000000000 (re) 2 6 3 ..... 1 2661d26c6496 000000000000 000000000000 (re) 210 rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 3 ..... 2 b8e02f643373 000000000000 000000000000 (re) 1 3 3 ..... 1 5d9299349fc0 000000000000 000000000000 (re) 2 6 3 ..... 0 2661d26c6496 000000000000 000000000000 (re) manifest-file rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 3 ..... 3 b8e02f643373 000000000000 000000000000 (re) 1 3 3 ..... 4 5d9299349fc0 000000000000 000000000000 (re) $ cd .. $ for i in 0 1 2 3 4; do > hg clone -q -U --pull crossed $i > echo "% Trying to strip revision $i" > hg --cwd $i strip $i > echo "% Verifying" > hg --cwd $i verify > echo > done % Trying to strip revision 0 saved backup bundle to $TESTTMP/0/.hg/strip-backup/*-backup.hg (glob) % Verifying checking changesets checking manifests crosschecking files in changesets and manifests checking files 7 files, 4 changesets, 15 total revisions % Trying to strip revision 1 saved backup bundle to $TESTTMP/1/.hg/strip-backup/*-backup.hg (glob) % Verifying checking changesets checking manifests crosschecking files in changesets and manifests checking files 7 files, 4 changesets, 14 total revisions % Trying to strip revision 2 saved backup bundle to $TESTTMP/2/.hg/strip-backup/*-backup.hg (glob) % Verifying checking changesets checking manifests crosschecking files in changesets and manifests checking files 7 files, 4 changesets, 14 total revisions % Trying to strip revision 3 saved backup bundle to $TESTTMP/3/.hg/strip-backup/*-backup.hg (glob) % Verifying checking changesets checking manifests crosschecking files in changesets and manifests checking files 7 files, 4 changesets, 19 total revisions % Trying to strip revision 4 saved backup bundle to $TESTTMP/4/.hg/strip-backup/*-backup.hg (glob) % Verifying checking changesets checking manifests crosschecking files in changesets and manifests checking files 7 files, 4 changesets, 19 total revisions