зеркало из https://github.com/microsoft/git.git
267 строки
8.4 KiB
Bash
267 строки
8.4 KiB
Bash
# Helpers for scripts testing bitmap functionality; see t5310 for
|
|
# example usage.
|
|
|
|
# Compare a file containing rev-list bitmap traversal output to its non-bitmap
|
|
# counterpart. You can't just use test_cmp for this, because the two produce
|
|
# subtly different output:
|
|
#
|
|
# - regular output is in traversal order, whereas bitmap is split by type,
|
|
# with non-packed objects at the end
|
|
#
|
|
# - regular output has a space and the pathname appended to non-commit
|
|
# objects; bitmap output omits this
|
|
#
|
|
# This function normalizes and compares the two. The second file should
|
|
# always be the bitmap output.
|
|
test_bitmap_traversal () {
|
|
if test "$1" = "--no-confirm-bitmaps"
|
|
then
|
|
shift
|
|
elif cmp "$1" "$2"
|
|
then
|
|
echo >&2 "identical raw outputs; are you sure bitmaps were used?"
|
|
return 1
|
|
fi &&
|
|
cut -d' ' -f1 "$1" | sort >"$1.normalized" &&
|
|
sort "$2" >"$2.normalized" &&
|
|
test_cmp "$1.normalized" "$2.normalized" &&
|
|
rm -f "$1.normalized" "$2.normalized"
|
|
}
|
|
|
|
# To ensure the logic for "maximal commits" is exercised, make
|
|
# the repository a bit more complicated.
|
|
#
|
|
# other second
|
|
# * *
|
|
# (99 commits) (99 commits)
|
|
# * *
|
|
# |\ /|
|
|
# | * octo-other octo-second * |
|
|
# |/|\_________ ____________/|\|
|
|
# | \ \/ __________/ |
|
|
# | | ________/\ / |
|
|
# * |/ * merge-right *
|
|
# | _|__________/ \____________ |
|
|
# |/ | \|
|
|
# (l1) * * merge-left * (r1)
|
|
# | / \________________________ |
|
|
# |/ \|
|
|
# (l2) * * (r2)
|
|
# \___________________________ |
|
|
# \|
|
|
# * (base)
|
|
#
|
|
# We only push bits down the first-parent history, which
|
|
# makes some of these commits unimportant!
|
|
#
|
|
# The important part for the maximal commit algorithm is how
|
|
# the bitmasks are extended. Assuming starting bit positions
|
|
# for second (bit 0) and other (bit 1), the bitmasks at the
|
|
# end should be:
|
|
#
|
|
# second: 1 (maximal, selected)
|
|
# other: 01 (maximal, selected)
|
|
# (base): 11 (maximal)
|
|
#
|
|
# This complicated history was important for a previous
|
|
# version of the walk that guarantees never walking a
|
|
# commit multiple times. That goal might be important
|
|
# again, so preserve this complicated case. For now, this
|
|
# test will guarantee that the bitmaps are computed
|
|
# correctly, even with the repeat calculations.
|
|
setup_bitmap_history() {
|
|
test_expect_success 'setup repo with moderate-sized history' '
|
|
test_commit_bulk --id=file 10 &&
|
|
git branch -M second &&
|
|
git checkout -b other HEAD~5 &&
|
|
test_commit_bulk --id=side 10 &&
|
|
|
|
# add complicated history setup, including merges and
|
|
# ambiguous merge-bases
|
|
|
|
git checkout -b merge-left other~2 &&
|
|
git merge second~2 -m "merge-left" &&
|
|
|
|
git checkout -b merge-right second~1 &&
|
|
git merge other~1 -m "merge-right" &&
|
|
|
|
git checkout -b octo-second second &&
|
|
git merge merge-left merge-right -m "octopus-second" &&
|
|
|
|
git checkout -b octo-other other &&
|
|
git merge merge-left merge-right -m "octopus-other" &&
|
|
|
|
git checkout other &&
|
|
git merge octo-other -m "pull octopus" &&
|
|
|
|
git checkout second &&
|
|
git merge octo-second -m "pull octopus" &&
|
|
|
|
# Remove these branches so they are not selected
|
|
# as bitmap tips
|
|
git branch -D merge-left &&
|
|
git branch -D merge-right &&
|
|
git branch -D octo-other &&
|
|
git branch -D octo-second &&
|
|
|
|
# add padding to make these merges less interesting
|
|
# and avoid having them selected for bitmaps
|
|
test_commit_bulk --id=file 100 &&
|
|
git checkout other &&
|
|
test_commit_bulk --id=side 100 &&
|
|
git checkout second &&
|
|
|
|
bitmaptip=$(git rev-parse second) &&
|
|
blob=$(echo tagged-blob | git hash-object -w --stdin) &&
|
|
git tag tagged-blob $blob
|
|
'
|
|
}
|
|
|
|
rev_list_tests_head () {
|
|
test_expect_success "counting commits via bitmap ($state, $branch)" '
|
|
git rev-list --count $branch >expect &&
|
|
git rev-list --use-bitmap-index --count $branch >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success "counting partial commits via bitmap ($state, $branch)" '
|
|
git rev-list --count $branch~5..$branch >expect &&
|
|
git rev-list --use-bitmap-index --count $branch~5..$branch >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success "counting commits with limit ($state, $branch)" '
|
|
git rev-list --count -n 1 $branch >expect &&
|
|
git rev-list --use-bitmap-index --count -n 1 $branch >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success "counting non-linear history ($state, $branch)" '
|
|
git rev-list --count other...second >expect &&
|
|
git rev-list --use-bitmap-index --count other...second >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success "counting commits with limiting ($state, $branch)" '
|
|
git rev-list --count $branch -- 1.t >expect &&
|
|
git rev-list --use-bitmap-index --count $branch -- 1.t >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success "counting objects via bitmap ($state, $branch)" '
|
|
git rev-list --count --objects $branch >expect &&
|
|
git rev-list --use-bitmap-index --count --objects $branch >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success "enumerate commits ($state, $branch)" '
|
|
git rev-list --use-bitmap-index $branch >actual &&
|
|
git rev-list $branch >expect &&
|
|
test_bitmap_traversal --no-confirm-bitmaps expect actual
|
|
'
|
|
|
|
test_expect_success "enumerate --objects ($state, $branch)" '
|
|
git rev-list --objects --use-bitmap-index $branch >actual &&
|
|
git rev-list --objects $branch >expect &&
|
|
test_bitmap_traversal expect actual
|
|
'
|
|
|
|
test_expect_success "bitmap --objects handles non-commit objects ($state, $branch)" '
|
|
git rev-list --objects --use-bitmap-index $branch tagged-blob >actual &&
|
|
grep $blob actual
|
|
'
|
|
}
|
|
|
|
rev_list_tests () {
|
|
state=$1
|
|
|
|
for branch in "second" "other"
|
|
do
|
|
rev_list_tests_head
|
|
done
|
|
}
|
|
|
|
basic_bitmap_tests () {
|
|
tip="$1"
|
|
test_expect_success 'rev-list --test-bitmap verifies bitmaps' "
|
|
git rev-list --test-bitmap "${tip:-HEAD}"
|
|
"
|
|
|
|
rev_list_tests 'full bitmap'
|
|
|
|
test_expect_success 'clone from bitmapped repository' '
|
|
rm -fr clone.git &&
|
|
git clone --no-local --bare . clone.git &&
|
|
git rev-parse HEAD >expect &&
|
|
git --git-dir=clone.git rev-parse HEAD >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'partial clone from bitmapped repository' '
|
|
test_config uploadpack.allowfilter true &&
|
|
rm -fr partial-clone.git &&
|
|
git clone --no-local --bare --filter=blob:none . partial-clone.git &&
|
|
(
|
|
cd partial-clone.git &&
|
|
pack=$(echo objects/pack/*.pack) &&
|
|
git verify-pack -v "$pack" >have &&
|
|
awk "/blob/ { print \$1 }" <have >blobs &&
|
|
# we expect this single blob because of the direct ref
|
|
git rev-parse refs/tags/tagged-blob >expect &&
|
|
test_cmp expect blobs
|
|
)
|
|
'
|
|
|
|
test_expect_success 'setup further non-bitmapped commits' '
|
|
test_commit_bulk --id=further 10
|
|
'
|
|
|
|
rev_list_tests 'partial bitmap'
|
|
|
|
test_expect_success 'fetch (partial bitmap)' '
|
|
git --git-dir=clone.git fetch origin second:second &&
|
|
git rev-parse HEAD >expect &&
|
|
git --git-dir=clone.git rev-parse HEAD >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'enumerating progress counts pack-reused objects' '
|
|
count=$(git rev-list --objects --all --count) &&
|
|
git repack -adb &&
|
|
|
|
# check first with only reused objects; confirm that our
|
|
# progress showed the right number, and also that we did
|
|
# pack-reuse as expected. Check only the final "done"
|
|
# line of the meter (there may be an arbitrary number of
|
|
# intermediate lines ending with CR).
|
|
GIT_PROGRESS_DELAY=0 \
|
|
git pack-objects --all --stdout --progress \
|
|
</dev/null >/dev/null 2>stderr &&
|
|
grep "Enumerating objects: $count, done" stderr &&
|
|
grep "pack-reused $count" stderr &&
|
|
|
|
# now the same but with one non-reused object
|
|
git commit --allow-empty -m "an extra commit object" &&
|
|
GIT_PROGRESS_DELAY=0 \
|
|
git pack-objects --all --stdout --progress \
|
|
</dev/null >/dev/null 2>stderr &&
|
|
grep "Enumerating objects: $((count+1)), done" stderr &&
|
|
grep "pack-reused $count" stderr
|
|
'
|
|
}
|
|
|
|
# have_delta <obj> <expected_base>
|
|
#
|
|
# Note that because this relies on cat-file, it might find _any_ copy of an
|
|
# object in the repository. The caller is responsible for making sure
|
|
# there's only one (e.g., via "repack -ad", or having just fetched a copy).
|
|
have_delta () {
|
|
echo $2 >expect &&
|
|
echo $1 | git cat-file --batch-check="%(deltabase)" >actual &&
|
|
test_cmp expect actual
|
|
}
|
|
|
|
midx_checksum () {
|
|
test-tool read-midx --checksum "$1"
|
|
}
|