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midx: add test that 'expire' respects .keep files 

The 'git multi-pack-index expire' subcommand may delete packs that
are not needed from the perspective of the multi-pack-index. If
a pack has a .keep file, then we should not delete that pack. Add
a test that ensures we preserve a pack that would otherwise be
expired. First, create a new pack that contains every object in
the repo, then add it to the multi-pack-index. Then create a .keep
file for a pack starting with "a-pack" that was added in the
previous test. Finally, expire and verify that the pack remains
and the other packs were expired.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Derrick Stolee 2019-06-10 16:35:28 -07:00 committed by Junio C Hamano
parent d2743315d4
commit 10bfa3f7f5
1 changed files with 18 additions and 0 deletions
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18
t/t5319-multi-pack-index.sh
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@ -510,4 +510,22 @@ test_expect_success 'expire works when adding new packs' '
)
'

test_expect_success 'expire respects .keep files' '
(
cd dup &&
git pack-objects --revs .git/objects/pack/pack-all <<-EOF &&
refs/heads/A
EOF
git multi-pack-index write &&
PACKA=$(ls .git/objects/pack/a-pack*\.pack | sed s/\.pack\$//) &&
touch $PACKA.keep &&
git multi-pack-index expire &&
ls -S .git/objects/pack/a-pack* | grep $PACKA >a-pack-files &&
test_line_count = 3 a-pack-files &&
test-tool read-midx .git/objects | grep idx >midx-list &&
test_line_count = 2 midx-list
)
'


test_done