Mercurial > hg
view tests/test-narrow-commit.t @ 49790:f463eb675e85 stable
emitrevision: consider ancestors revision to emit as available base
This should make more delta base valid. This notably affects:
* case where we skipped some parent with empty delta to directly delta against
an ancestors
* case where an intermediate snapshots is stored.
This change means we could sent largish intermediate snapshots over the wire.
However this is actually a sub goal here. Sending snapshots over the wire means
the client have a high odd of simply storing the pre-computed delta instead of
doing a lengthy process that will… end up doing the same intermediate snapshot.
In addition the overall size of snapshot (or any level) is "only" some or the
overall delta size. (0.17% for my mercurial clone, 20% for my clone of Mozilla
try). So Sending them other the wire is unlikely to change large impact on the
bandwidth used.
If we decide that minimising the bandwidth is an explicit goal, we should
introduce new logic to filter-out snapshot as delta. The current code has no
notion explicite of snapshot so far, they just tended to fall into the wobbly
filtering options.
In some cases, this patch can yield large improvement to the bundling time:
### data-env-vars.name = mozilla-try-2019-02-18-zstd-sparse-revlog
# benchmark.name = perf-bundle
# benchmark.variants.revs = last-100000
before: 68.787066 seconds
after: 47.552677 seconds (-30.87%)
That translate to large improvement to the pull time :
### data-env-vars.name = mozilla-try-2019-02-18-zstd-sparse-revlog
# benchmark.name = pull
# benchmark.variants.issue6528 = disabled
# benchmark.variants.revs = last-100000
before: 142.186625 seconds
after: 75.897745 seconds (-46.62%)
No significant negative impact have been observed.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Sat, 12 Nov 2022 00:18:41 +0100 |
parents | 5b9de38a0356 |
children |
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#testcases flat tree $ . "$TESTDIR/narrow-library.sh" #if tree $ cat << EOF >> $HGRCPATH > [experimental] > treemanifest = 1 > EOF #endif create full repo $ hg init master $ cd master $ mkdir inside $ echo inside > inside/f1 $ mkdir outside $ echo outside > outside/f1 $ hg ci -Aqm 'initial' $ echo modified > inside/f1 $ hg ci -qm 'modify inside' $ echo modified > outside/f1 $ hg ci -qm 'modify outside' $ cd .. (The lfs extension does nothing here, but this test ensures that its hook that determines whether to add the lfs requirement, respects the narrow boundaries.) $ hg --config extensions.lfs= clone --narrow ssh://user@dummy/master narrow \ > --include inside requesting all changes adding changesets adding manifests adding file changes added 3 changesets with 2 changes to 1 files new changesets *:* (glob) updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd narrow $ hg update -q 0 Can not modify dirstate outside $ mkdir outside $ touch outside/f1 $ hg debugwalk -v -I 'relglob:f1' * matcher: <includematcher includes='(?:|.*/)f1(?:/|$)'> f inside/f1 inside/f1 $ hg add . $ hg add outside/f1 abort: cannot track 'outside/f1' - it is outside the narrow clone [255] $ touch outside/f3 $ hg add outside/f3 abort: cannot track 'outside/f3' - it is outside the narrow clone [255] But adding a truly excluded file shouldn't count $ hg add outside/f3 -X outside/f3 $ rm -r outside Can modify dirstate inside $ echo modified > inside/f1 $ touch inside/f3 $ hg add inside/f3 $ hg status M inside/f1 A inside/f3 $ hg revert -qC . $ rm inside/f3 Can commit changes inside. Leaves outside unchanged. $ hg update -q 'desc("initial")' $ echo modified2 > inside/f1 $ hg manifest --debug 4d6a634d5ba06331a60c29ee0db8412490a54fcd 644 inside/f1 7fb3bb6356d28d4dc352c5ba52d7350a81b6bd46 644 outside/f1 (flat !) d0f2f706468ab0e8bec7af87446835fb1b13511b 755 d outside/ (tree !) $ hg commit -m 'modify inside/f1' created new head $ hg files -r . inside/f1 $ hg manifest --debug 3f4197b4a11b9016e77ebc47fe566944885fd11b 644 inside/f1 7fb3bb6356d28d4dc352c5ba52d7350a81b6bd46 644 outside/f1 (flat !) d0f2f706468ab0e8bec7af87446835fb1b13511b 755 d outside/ (tree !) Some filesystems (notably FAT/exFAT only store timestamps with 2 seconds of precision, so by sleeping for 3 seconds, we can ensure that the timestamps of files stored by dirstate will appear older than the dirstate file, and therefore we'll be able to get stable output from debugdirstate. If we don't do this, the test can be slightly flaky. $ sleep 3 $ hg status $ hg debugdirstate --no-dates n 644 10 set inside/f1 Can commit empty files $ touch inside/c; hg add inside/c; hg commit -qm _; hg verify -q $ hg cat -r . inside/c