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#!/bin/sh
test_description='Tests performance using midx bitmaps'
. ./perf-lib.sh
. "${TEST_DIRECTORY}/perf/lib-bitmap.sh"
test_perf_large_repo
test_expect_success 'enable multi-pack index' '
git config core.multiPackIndex true
'
test_perf 'setup multi-pack index' '
git repack -ad &&
git multi-pack-index write --bitmap
'
test_full_bitmap
test_expect_success 'create partial bitmap state' '
# pick a commit to represent the repo tip in the past
cutoff=$(git rev-list HEAD~100 -1) &&
orig_tip=$(git rev-parse HEAD) &&
# now pretend we have just one tip
rm -rf .git/logs .git/refs/* .git/packed-refs &&
git update-ref HEAD $cutoff &&
# and then repack, which will leave us with a nice
# big bitmap pack of the "old" history, and all of
# the new history will be loose, as if it had been pushed
# up incrementally and exploded via unpack-objects
git repack -Ad &&
git multi-pack-index write --bitmap &&
# and now restore our original tip, as if the pushes
# had happened
git update-ref HEAD $orig_tip
'
test_partial_bitmap
test_done
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