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|
#!/bin/sh
test_description='Tests performance using midx bitmaps'
. ./perf-lib.sh
. "${TEST_DIRECTORY}/perf/lib-bitmap.sh"
test_bitmap () {
local enabled="$1"
test_expect_success "remove existing repo (lookup=$enabled)" '
rm -fr * .git
'
test_perf_large_repo
# 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 "use lookup table: $enabled" '
git config pack.writeBitmapLookupTable '"$enabled"'
'
test_expect_success "start with bitmapped pack (lookup=$enabled)" '
git repack -adb
'
test_perf "setup multi-pack index (lookup=$enabled)" '
git multi-pack-index write --bitmap
'
test_expect_success "drop pack bitmap (lookup=$enabled)" '
rm -f .git/objects/pack/pack-*.bitmap
'
test_full_bitmap
test_expect_success "create partial bitmap state (lookup=$enabled)" '
# 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_bitmap false
test_bitmap true
test_done
|
