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Merge branch 'tb/midx-write-propagate-namehash'

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"git multi-pack-index write --bitmap" learns to propagate the
hashcache from original bitmap to resulting bitmap.

* tb/midx-write-propagate-namehash:
  t5326: test propagating hashcache values
  p5326: generate pack bitmaps before writing the MIDX bitmap
  p5326: don't set core.multiPackIndex unnecessarily
  p5326: create missing 'perf-tag' tag
  midx.c: respect 'pack.writeBitmapHashcache' when writing bitmaps
  pack-bitmap.c: propagate namehash values from existing bitmaps
  t/helper/test-bitmap.c: add 'dump-hashes' mode
This commit is contained in:
Junio C Hamano
2021-10-11 10:21:46 -07:00
parent 106298f7f9 54156af0d6
commit 9567a670d2
9 changed files with 118 additions and 11 deletions
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15
t/perf/p5326-multi-pack-bitmaps.sh
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@ -6,15 +6,24 @@ test_description='Tests performance using midx bitmaps'
test_perf_large_repo
test_expect_success 'enable multi-pack index' '
git config core.multiPackIndex true
# we need to create the tag up front such that it is covered by the repack and
# thus by generated bitmaps.
test_expect_success 'create tags' '
git tag --message="tag pointing to HEAD" perf-tag HEAD
'
test_expect_success 'start with bitmapped pack' '
git repack -adb
'
test_perf 'setup multi-pack index' '
git repack -ad &&
git multi-pack-index write --bitmap
'
test_expect_success 'drop pack bitmap' '
rm -f .git/objects/pack/pack-*.bitmap
'
test_full_bitmap
test_expect_success 'create partial bitmap state' '