Mercurial > hg
view tests/test-remotefilelog-gcrepack.t @ 46834:535de0e34a79
rebase: filter out descendants of divergence-causing commits earlier
`hg rebase` treats obsolete commits differently depending what has
happened to the commit:
1) Obsolete commit without non-obsolete successors: Skipped, and a
note is printed ("it has no successor").
2) Obsolete commit with a successor in the destination (ancestor of
it): Skipped, and a note is printed ("already in destination").
3) Obsolete commit with a successor in the rebase set: The commit and
its descendants are skipped, and a note is printed ("not rebasing
<commit> and its descendants as this would cause divergence"), unless
`allowdivergence` config set.
4) Obsolete commit with a successor elsewhere: Error ("this rebase
will cause divergences"), unless `allowdivergence` config set.
Before this patch, we did all those checks up front, except for (3),
which was checked later. The later check consisted of two parts: 1)
filtering out of descendants, and 2) conditionally printing message if
the `allowdivergence` config was not set. This patch makes it so we do
the filtering early.
A consequence of filtering out divergence-causing commits earlier is
that we rebase commits in slightly different order, which has some
impact on tests.
Differential Revision: https://phab.mercurial-scm.org/D10249
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Fri, 19 Mar 2021 22:52:59 -0700 |
parents | 4f40dc190f63 |
children | 7e5be4a7cda7 |
line wrap: on
line source
#require no-windows $ . "$TESTDIR/remotefilelog-library.sh" $ hg init master $ cd master $ cat >> .hg/hgrc <<EOF > [remotefilelog] > server=True > EOF $ echo x > x $ hg commit -qAm x $ echo y > y $ rm x $ hg commit -qAm DxAy $ echo yy > y $ hg commit -qAm y $ cd .. $ hgcloneshallow ssh://user@dummy/master shallow -q 1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob) # Set the prefetchdays config to zero so that all commits are prefetched # no matter what their creation date is. $ cd shallow $ cat >> .hg/hgrc <<EOF > [remotefilelog] > prefetchdays=0 > EOF $ cd .. # Prefetch all data and repack $ cd shallow $ cat >> .hg/hgrc <<EOF > [remotefilelog] > bgprefetchrevs=all() > EOF $ hg prefetch 2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob) $ hg repack $ find $CACHEDIR | sort | egrep ".datapack|.histpack" $TESTTMP/hgcache/master/packs/7bcd2d90b99395ca43172a0dd24e18860b2902f9.histpack $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37.datapack # Ensure that all file versions were prefetched $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1` $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37: x: Node Delta Base Delta Length Blob Size 1406e7411862 000000000000 2 2 Total: 2 2 (0.0% bigger) y: Node Delta Base Delta Length Blob Size 50dbc4572b8e 000000000000 3 3 076f5e2225b3 50dbc4572b8e 14 2 Total: 17 5 (240.0% bigger) # Test garbage collection during repack $ cat >> .hg/hgrc <<EOF > [remotefilelog] > bgprefetchrevs=tip > gcrepack=True > nodettl=86400 > EOF $ hg repack $ find $CACHEDIR | sort | egrep ".datapack|.histpack" $TESTTMP/hgcache/master/packs/7bcd2d90b99395ca43172a0dd24e18860b2902f9.histpack $TESTTMP/hgcache/master/packs/a4e1d094ec2aee8a08a4d6d95a13c634cc7d7394.datapack # Ensure that file 'x' was garbage collected. It should be GCed because it is not in the keepset # and is old (commit date is 0.0 in tests). Ensure that file 'y' is present as it is in the keepset. $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1` $TESTTMP/hgcache/master/packs/a4e1d094ec2aee8a08a4d6d95a13c634cc7d7394: y: Node Delta Base Delta Length Blob Size 50dbc4572b8e 000000000000 3 3 Total: 3 3 (0.0% bigger) # Prefetch all data again and repack for later garbage collection $ cat >> .hg/hgrc <<EOF > [remotefilelog] > bgprefetchrevs=all() > EOF $ hg prefetch 2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob) $ hg repack $ find $CACHEDIR | sort | egrep ".datapack|.histpack" $TESTTMP/hgcache/master/packs/7bcd2d90b99395ca43172a0dd24e18860b2902f9.histpack $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37.datapack # Ensure that all file versions were prefetched $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1` $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37: x: Node Delta Base Delta Length Blob Size 1406e7411862 000000000000 2 2 Total: 2 2 (0.0% bigger) y: Node Delta Base Delta Length Blob Size 50dbc4572b8e 000000000000 3 3 076f5e2225b3 50dbc4572b8e 14 2 Total: 17 5 (240.0% bigger) # Test garbage collection during repack. Ensure that new files are not removed even though they are not in the keepset # For the purposes of the test the TTL of a file is set to current time + 100 seconds. i.e. all commits in tests have # a date of 1970 and therefore to prevent garbage collection we have to set nodettl to be farther from 1970 than we are now. $ cat >> .hg/hgrc <<EOF > [remotefilelog] > bgprefetchrevs= > nodettl=$(($(date +%s) + 100)) > EOF $ hg repack $ find $CACHEDIR | sort | egrep ".datapack|.histpack" $TESTTMP/hgcache/master/packs/7bcd2d90b99395ca43172a0dd24e18860b2902f9.histpack $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37.datapack # Ensure that all file versions were prefetched $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1` $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37: x: Node Delta Base Delta Length Blob Size 1406e7411862 000000000000 2 2 Total: 2 2 (0.0% bigger) y: Node Delta Base Delta Length Blob Size 50dbc4572b8e 000000000000 3 3 076f5e2225b3 50dbc4572b8e 14 2 Total: 17 5 (240.0% bigger)