Mercurial > hg
view tests/test-remotefilelog-tags.t @ 51181:dcaa2df1f688
changelog: never inline changelog
The test suite mostly use small repositories, that implies that most changelog in the
tests are inlined. As a result, non-inlined changelog are quite poorly tested.
Since non-inline changelog are most common case for serious repositories, this
lack of testing is a significant problem that results in high profile issue like
the one recently fixed by 66417f55ea33 and 849745d7da89.
Inlining the changelog does not bring much to the table, the number of total
file saved is negligible, and the changelog will be read by most operation
anyway.
So this changeset is make it so we never inline the changelog, and de-inline the
one that are still inlined whenever we touch them.
By doing that, we remove the "dual code path" situation for writing new entry to
the changelog and move to a "single code path" situation. Having a single
code path simplify the code and make sure it is covered by test (if test cover
that situation obviously)
This impact all tests that care about the number of file and the exchange size,
but there is nothing too complicated in them just a lot of churn.
The churn is made "worse" by the fact rust will use the persistent nodemap on
any changelog now. Which is overall a win as it means testing the persistent
nodemap more and having less special cases.
In short, having inline changelog is mostly useless and an endless source of
pain. We get rid of it.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 11 Dec 2023 22:27:59 +0100 |
parents | 84a93fa7ecfd |
children |
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#require no-windows $ . "$TESTDIR/remotefilelog-library.sh" $ hg init master $ cd master $ cat >> .hg/hgrc <<EOF > [remotefilelog] > server=True > EOF $ echo x > foo $ echo y > bar $ hg commit -qAm one $ hg tag tag1 $ cd .. # clone with tags $ hg clone --shallow ssh://user@dummy/master shallow --noupdate --config remotefilelog.excludepattern=.hgtags streaming all changes 4 files to transfer, 662 bytes of data (no-zstd !) transferred 662 bytes in * seconds (* */sec) (glob) (no-zstd !) 4 files to transfer, 665 bytes of data (zstd no-rust !) transferred 665 bytes in * seconds (* */sec) (glob) (zstd no-rust !) 6 files to transfer, 791 bytes of data (zstd rust !) transferred 791 bytes in * seconds (*/sec) (glob) (zstd rust !) searching for changes no changes found $ cat >> shallow/.hg/hgrc <<EOF > [remotefilelog] > cachepath=$PWD/hgcache > debug=True > reponame = master > excludepattern=.hgtags > [extensions] > remotefilelog= > EOF $ cd shallow $ ls .hg/store/data ~2ehgtags.i $ hg tags tip 1:6ce44dcfda68 tag1 0:e0360bc0d9e1 $ hg update 3 files updated, 0 files merged, 0 files removed, 0 files unresolved 2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob) # pull with tags $ cd ../master $ hg tag tag2 $ cd ../shallow $ hg pull pulling from ssh://user@dummy/master searching for changes adding changesets adding manifests adding file changes added 1 changesets with 0 changes to 0 files new changesets 6a22dfa4fd34 (run 'hg update' to get a working copy) $ hg tags tip 2:6a22dfa4fd34 tag2 1:6ce44dcfda68 tag1 0:e0360bc0d9e1 $ hg update 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ ls .hg/store/data ~2ehgtags.i $ hg log -l 1 --stat changeset: 2:6a22dfa4fd34 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: Added tag tag2 for changeset 6ce44dcfda68 .hgtags | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)