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changelog: never inline changelog...
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.
marmoute - - Load All Authors

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test-remotefilelog-bgprefetch.t
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#require no-windows
$ . "$TESTDIR/remotefilelog-library.sh"
$ cat >> $HGRCPATH <<EOF
> [devel]
> remotefilelog.bg-wait=True
> EOF
$ hg init master
$ cd master
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> server=True
> EOF
$ echo x > x
$ echo z > z
$ hg commit -qAm x
$ echo x2 > x
$ echo y > y
$ hg commit -qAm y
$ echo w > w
$ rm z
$ hg commit -qAm w
$ hg bookmark foo
$ cd ..
# clone the repo
$ hgcloneshallow ssh://user@dummy/master shallow --noupdate
streaming all changes
3 files to transfer, 776 bytes of data (no-zstd !)
transferred 776 bytes in * seconds (*/sec) (glob) (no-zstd !)
3 files to transfer, 784 bytes of data (zstd no-rust !)
transferred 784 bytes in * seconds (*/sec) (glob) (zstd no-rust !)
5 files to transfer, 910 bytes of data (rust !)
transferred 910 bytes in * seconds (*/sec) (glob) (rust !)
searching for changes
no changes found
# Set the prefetchdays config to zero so that all commits are prefetched
# no matter what their creation date is. Also set prefetchdelay config
# to zero so that there is no delay between prefetches.
$ cd shallow
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> prefetchdays=0
> prefetchdelay=0
> EOF
$ cd ..
# prefetch a revision
$ cd shallow
$ hg prefetch -r 0
2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob)
$ hg cat -r 0 x
x
# background prefetch on pull when configured
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> pullprefetch=bookmark()
> backgroundprefetch=True
> EOF
$ hg strip tip
saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/6b4b6f66ef8c-b4b8bdaf-backup.hg (glob)
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
$ clearcache
$ hg pull
pulling from ssh://user@dummy/master
searching for changes
adding changesets
adding manifests
adding file changes
updating bookmark foo
added 1 changesets with 0 changes to 0 files
new changesets 6b4b6f66ef8c
(run 'hg update' to get a working copy)
prefetching file contents
$ find $CACHEDIR -type f | sort
$TESTTMP/hgcache/master/11/f6ad8ec52a2984abaafd7c3b516503785c2072/ef95c5376f34698742fe34f315fd82136f8f68c0
$TESTTMP/hgcache/master/95/cb0bfd2977c761298d9624e4b4d4c72a39974a/076f5e2225b3ff0400b98c92aa6cdf403ee24cca
$TESTTMP/hgcache/master/af/f024fe4ab0fece4091de044c58c9ae4233383a/bb6ccd5dceaa5e9dc220e0dad65e051b94f69a2c
$TESTTMP/hgcache/repos
# background prefetch with repack on pull when configured
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> backgroundrepack=True
> EOF
$ hg strip tip
saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/6b4b6f66ef8c-b4b8bdaf-backup.hg (glob)
$ clearcache
$ hg pull
pulling from ssh://user@dummy/master
searching for changes
adding changesets
adding manifests
adding file changes
updating bookmark foo
added 1 changesets with 0 changes to 0 files
new changesets 6b4b6f66ef8c
(run 'hg update' to get a working copy)
prefetching file contents
$ find $CACHEDIR -type f | sort
$TESTTMP/hgcache/master/packs/6e8633deba6e544e5f8edbd7b996d6e31a2c42ae.histidx
$TESTTMP/hgcache/master/packs/6e8633deba6e544e5f8edbd7b996d6e31a2c42ae.histpack
$TESTTMP/hgcache/master/packs/8ce5ab3745465ab83bba30a7b9c295e0c8404652.dataidx
$TESTTMP/hgcache/master/packs/8ce5ab3745465ab83bba30a7b9c295e0c8404652.datapack
$TESTTMP/hgcache/repos
# background prefetch with repack on update when wcprevset configured
$ clearcache
$ hg up -r 0
2 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)
$ find $CACHEDIR -type f | sort
$TESTTMP/hgcache/master/11/f6ad8ec52a2984abaafd7c3b516503785c2072/1406e74118627694268417491f018a4a883152f0
$TESTTMP/hgcache/master/39/5df8f7c51f007019cb30201c49e884b46b92fa/69a1b67522704ec122181c0890bd16e9d3e7516a
$TESTTMP/hgcache/repos
$ hg up -r 1
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
2 files fetched over 2 fetches - (2 misses, 0.00% hit ratio) over *s (glob)
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> bgprefetchrevs=.::
> EOF
$ clearcache
$ hg up -r 0
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
* files fetched over * fetches - (* misses, 0.00% hit ratio) over *s (glob)
$ find $CACHEDIR -type f | sort
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack
$TESTTMP/hgcache/repos
# Ensure that file 'w' was prefetched - it was not part of the update operation and therefore
# could only be downloaded by the background prefetch
$ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:
w:
Node Delta Base Delta Length Blob Size
bb6ccd5dceaa 000000000000 2 2
Total: 2 2 (0.0% bigger)
x:
Node Delta Base Delta Length Blob Size
ef95c5376f34 000000000000 3 3
1406e7411862 ef95c5376f34 14 2
Total: 17 5 (240.0% bigger)
y:
Node Delta Base Delta Length Blob Size
076f5e2225b3 000000000000 2 2
Total: 2 2 (0.0% bigger)
z:
Node Delta Base Delta Length Blob Size
69a1b6752270 000000000000 2 2
Total: 2 2 (0.0% bigger)
# background prefetch with repack on commit when wcprevset configured
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> bgprefetchrevs=0::
> EOF
$ clearcache
$ find $CACHEDIR -type f | sort
$ echo b > b
.. The following output line about files fetches is globed because it is
.. flaky, the core the test is checked when checking the cache dir, so
.. hopefully this flakyness is not hiding any actual bug.
$ hg commit -qAm b
* files fetched over 1 fetches - (* misses, 0.00% hit ratio) over *s (glob) (?)
$ hg bookmark temporary
$ find $CACHEDIR -type f | sort
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack
$TESTTMP/hgcache/repos
# Ensure that file 'w' was prefetched - it was not part of the commit operation and therefore
# could only be downloaded by the background prefetch
$ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:
w:
Node Delta Base Delta Length Blob Size
bb6ccd5dceaa 000000000000 2 2
Total: 2 2 (0.0% bigger)
x:
Node Delta Base Delta Length Blob Size
ef95c5376f34 000000000000 3 3
1406e7411862 ef95c5376f34 14 2
Total: 17 5 (240.0% bigger)
y:
Node Delta Base Delta Length Blob Size
076f5e2225b3 000000000000 2 2
Total: 2 2 (0.0% bigger)
z:
Node Delta Base Delta Length Blob Size
69a1b6752270 000000000000 2 2
Total: 2 2 (0.0% bigger)
# background prefetch with repack on rebase when wcprevset configured
$ hg up -r 2
3 files updated, 0 files merged, 2 files removed, 0 files unresolved
(leaving bookmark temporary)
$ clearcache
$ find $CACHEDIR -type f | sort
.. The following output line about files fetches is globed because it is
.. flaky, the core the test is checked when checking the cache dir, so
.. hopefully this flakyness is not hiding any actual bug.
$ hg rebase -s temporary -d foo
rebasing 3:d9cf06e3b5b6 temporary tip "b"
saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/d9cf06e3b5b6-e5c3dc63-rebase.hg
? files fetched over ? fetches - (? misses, 0.00% hit ratio) over *s (glob)
$ find $CACHEDIR -type f | sort
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack
$TESTTMP/hgcache/repos
# Ensure that file 'y' was prefetched - it was not part of the rebase operation and therefore
# could only be downloaded by the background prefetch
$ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:
w:
Node Delta Base Delta Length Blob Size
bb6ccd5dceaa 000000000000 2 2
Total: 2 2 (0.0% bigger)
x:
Node Delta Base Delta Length Blob Size
ef95c5376f34 000000000000 3 3
1406e7411862 ef95c5376f34 14 2
Total: 17 5 (240.0% bigger)
y:
Node Delta Base Delta Length Blob Size
076f5e2225b3 000000000000 2 2
Total: 2 2 (0.0% bigger)
z:
Node Delta Base Delta Length Blob Size
69a1b6752270 000000000000 2 2
Total: 2 2 (0.0% bigger)
# Check that foregound prefetch with no arguments blocks until background prefetches finish
$ hg up -r 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ clearcache
$ hg prefetch --repack --config ui.timeout.warn=-1
(running background incremental repack)
* files fetched over 1 fetches - (* misses, 0.00% hit ratio) over *s (glob) (?)
$ find $CACHEDIR -type f | sort
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack
$TESTTMP/hgcache/repos
# Ensure that files were prefetched
$ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:
w:
Node Delta Base Delta Length Blob Size
bb6ccd5dceaa 000000000000 2 2
Total: 2 2 (0.0% bigger)
x:
Node Delta Base Delta Length Blob Size
ef95c5376f34 000000000000 3 3
1406e7411862 ef95c5376f34 14 2
Total: 17 5 (240.0% bigger)
y:
Node Delta Base Delta Length Blob Size
076f5e2225b3 000000000000 2 2
Total: 2 2 (0.0% bigger)
z:
Node Delta Base Delta Length Blob Size
69a1b6752270 000000000000 2 2
Total: 2 2 (0.0% bigger)
# Check that foreground prefetch fetches revs specified by '. + draft() + bgprefetchrevs + pullprefetch'
$ clearcache
$ hg prefetch --repack --config ui.timeout.warn=-1
(running background incremental repack)
* files fetched over 1 fetches - (* misses, 0.00% hit ratio) over *s (glob) (?)
$ find $CACHEDIR -type f | sort
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx
$TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack
$TESTTMP/hgcache/repos
# Ensure that files were prefetched
$ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`
$TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:
w:
Node Delta Base Delta Length Blob Size
bb6ccd5dceaa 000000000000 2 2
Total: 2 2 (0.0% bigger)
x:
Node Delta Base Delta Length Blob Size
ef95c5376f34 000000000000 3 3
1406e7411862 ef95c5376f34 14 2
Total: 17 5 (240.0% bigger)
y:
Node Delta Base Delta Length Blob Size
076f5e2225b3 000000000000 2 2
Total: 2 2 (0.0% bigger)
z:
Node Delta Base Delta Length Blob Size
69a1b6752270 000000000000 2 2
Total: 2 2 (0.0% bigger)
# Test that if data was prefetched and repacked we dont need to prefetch it again
# It ensures that Mercurial looks not only in loose files but in packs as well
$ hg prefetch --repack
(running background incremental repack)