export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
- . "$TEST_DIRECTORY"/lib-bundle.sh
. "$TEST_DIRECTORY"/lib-bitmap.sh
+# t5310 deals only with single-pack bitmaps, so don't write MIDX bitmaps in
+# their place.
+GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0
+
objpath () {
echo ".git/objects/$(echo "$1" | sed -e 's|\(..\)|\1/|')"
}
grep -Ff "$1" "$2"
}
-# 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.
-
-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 $blob &&
- git config repack.writebitmaps true
+setup_bitmap_history
+
+test_expect_success 'setup writing bitmaps during repack' '
+ git config repack.writeBitmaps true
'
test_expect_success 'full repack creates bitmaps' '
grep "\"key\":\"num_maximal_commits\",\"value\":\"107\"" trace
'
-test_expect_success 'rev-list --test-bitmap verifies bitmaps' '
- git rev-list --test-bitmap HEAD
-'
-
-rev_list_tests_head () {
- test_expect_success "counting commits via bitmap ($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=$1
-
- for branch in "second" "other"
- do
- rev_list_tests_head
- done
-}
-
-rev_list_tests 'full bitmap'
-
-test_expect_success 'clone from bitmapped repository' '
- git clone --no-local --bare . clone.git &&
- git rev-parse HEAD >expect &&
- git --git-dir=clone.git rev-parse HEAD >actual &&
- test_cmp expect actual
-'
-
-test_expect_success 'partial clone from bitmapped repository' '
- test_config uploadpack.allowfilter true &&
- git clone --no-local --bare --filter=blob:none . partial-clone.git &&
- (
- cd partial-clone.git &&
- pack=$(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
-'
+basic_bitmap_tests
test_expect_success 'incremental repack fails when bitmaps are requested' '
test_commit more-1 &&
test_i18ngrep corrupted.bitmap.index 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 $1 | git cat-file --batch-check="%(deltabase)" >actual &&
- test_cmp expect actual
-}
-
# Create a state of history with these properties:
#
# - refs that allow a client to fetch some new history, while sharing some old
)
'
+test_expect_success 'pack.preferBitmapTips' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ # create enough commits that not all are receive bitmap
+ # coverage even if they are all at the tip of some reference.
+ test_commit_bulk --message="%s" 103 &&
+
+ git rev-list HEAD >commits.raw &&
+ sort <commits.raw >commits &&
+
+ git log --format="create refs/tags/%s %H" HEAD >refs &&
+ git update-ref --stdin <refs &&
+
+ git repack -adb &&
+ test-tool bitmap list-commits | sort >bitmaps &&
+
+ # remember which commits did not receive bitmaps
+ comm -13 bitmaps commits >before &&
+ test_file_not_empty before &&
+
+ # mark the commits which did not receive bitmaps as preferred,
+ # and generate the bitmap again
+ perl -pe "s{^}{create refs/tags/include/$. }" <before |
+ git update-ref --stdin &&
+ git -c pack.preferBitmapTips=refs/tags/include repack -adb &&
+
+ # finally, check that the commit(s) without bitmap coverage
+ # are not the same ones as before
+ test-tool bitmap list-commits | sort >bitmaps &&
+ comm -13 bitmaps commits >after &&
+
+ ! test_cmp before after
+ )
+'
+
test_done
projects / thirdparty / git.git / commitdiff
