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-rwxr-xr-xt/t5329-pack-objects-cruft.sh742
1 files changed, 742 insertions, 0 deletions
diff --git a/t/t5329-pack-objects-cruft.sh b/t/t5329-pack-objects-cruft.sh
new file mode 100755
index 0000000..303f7a5
--- /dev/null
+++ b/t/t5329-pack-objects-cruft.sh
@@ -0,0 +1,742 @@
+#!/bin/sh
+
+test_description='cruft pack related pack-objects tests'
+. ./test-lib.sh
+
+objdir=.git/objects
+packdir=$objdir/pack
+
+basic_cruft_pack_tests () {
+ expire="$1"
+
+ test_expect_success "unreachable loose objects are packed (expire $expire)" '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit base &&
+ git repack -Ad &&
+ test_commit loose &&
+
+ test-tool chmtime +2000 "$objdir/$(test_oid_to_path \
+ $(git rev-parse loose:loose.t))" &&
+ test-tool chmtime +1000 "$objdir/$(test_oid_to_path \
+ $(git rev-parse loose^{tree}))" &&
+
+ (
+ git rev-list --objects --no-object-names base..loose |
+ while read oid
+ do
+ path="$objdir/$(test_oid_to_path "$oid")" &&
+ printf "%s %d\n" "$oid" "$(test-tool chmtime --get "$path")" ||
+ echo "object list generation failed for $oid"
+ done |
+ sort -k1
+ ) >expect &&
+
+ keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
+ cruft="$(echo $keep | git pack-objects --cruft \
+ --cruft-expiration="$expire" $packdir/pack)" &&
+ test-tool pack-mtimes "pack-$cruft.mtimes" >actual &&
+
+ test_cmp expect actual
+ )
+ '
+
+ test_expect_success "unreachable packed objects are packed (expire $expire)" '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit packed &&
+ git repack -Ad &&
+ test_commit other &&
+
+ git rev-list --objects --no-object-names packed.. >objects &&
+ keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
+ other="$(git pack-objects --delta-base-offset \
+ $packdir/pack <objects)" &&
+ git prune-packed &&
+
+ test-tool chmtime --get -100 "$packdir/pack-$other.pack" >expect &&
+
+ cruft="$(git pack-objects --cruft --cruft-expiration="$expire" $packdir/pack <<-EOF
+ $keep
+ -pack-$other.pack
+ EOF
+ )" &&
+ test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
+
+ cut -d" " -f2 <actual.raw | sort -u >actual &&
+
+ test_cmp expect actual
+ )
+ '
+
+ test_expect_success "unreachable cruft objects are repacked (expire $expire)" '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit packed &&
+ git repack -Ad &&
+ test_commit other &&
+
+ git rev-list --objects --no-object-names packed.. >objects &&
+ keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
+
+ cruft_a="$(echo $keep | git pack-objects --cruft --cruft-expiration="$expire" $packdir/pack)" &&
+ git prune-packed &&
+ cruft_b="$(git pack-objects --cruft --cruft-expiration="$expire" $packdir/pack <<-EOF
+ $keep
+ -pack-$cruft_a.pack
+ EOF
+ )" &&
+
+ test-tool pack-mtimes "pack-$cruft_a.mtimes" >expect.raw &&
+ test-tool pack-mtimes "pack-$cruft_b.mtimes" >actual.raw &&
+
+ sort <expect.raw >expect &&
+ sort <actual.raw >actual &&
+
+ test_cmp expect actual
+ )
+ '
+
+ test_expect_success "multiple cruft packs (expire $expire)" '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ git repack -Ad &&
+ keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
+
+ test_commit cruft &&
+ loose="$objdir/$(test_oid_to_path $(git rev-parse cruft))" &&
+
+ # generate three copies of the cruft object in different
+ # cruft packs, each with a unique mtime:
+ # - one expired (1000 seconds ago)
+ # - two non-expired (one 1000 seconds in the future,
+ # one 1500 seconds in the future)
+ test-tool chmtime =-1000 "$loose" &&
+ git pack-objects --cruft $packdir/pack-A <<-EOF &&
+ $keep
+ EOF
+ test-tool chmtime =+1000 "$loose" &&
+ git pack-objects --cruft $packdir/pack-B <<-EOF &&
+ $keep
+ -$(basename $(ls $packdir/pack-A-*.pack))
+ EOF
+ test-tool chmtime =+1500 "$loose" &&
+ git pack-objects --cruft $packdir/pack-C <<-EOF &&
+ $keep
+ -$(basename $(ls $packdir/pack-A-*.pack))
+ -$(basename $(ls $packdir/pack-B-*.pack))
+ EOF
+
+ # ensure the resulting cruft pack takes the most recent
+ # mtime among all copies
+ cruft="$(git pack-objects --cruft \
+ --cruft-expiration="$expire" \
+ $packdir/pack <<-EOF
+ $keep
+ -$(basename $(ls $packdir/pack-A-*.pack))
+ -$(basename $(ls $packdir/pack-B-*.pack))
+ -$(basename $(ls $packdir/pack-C-*.pack))
+ EOF
+ )" &&
+
+ test-tool pack-mtimes "$(basename $(ls $packdir/pack-C-*.mtimes))" >expect.raw &&
+ test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
+
+ sort expect.raw >expect &&
+ sort actual.raw >actual &&
+ test_cmp expect actual
+ )
+ '
+
+ test_expect_success "cruft packs tolerate missing trees (expire $expire)" '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ test_commit cruft &&
+
+ tree="$(git rev-parse cruft^{tree})" &&
+
+ git reset --hard reachable &&
+ git tag -d cruft &&
+ git reflog expire --all --expire=all &&
+
+ # remove the unreachable tree, but leave the commit
+ # which has it as its root tree intact
+ rm -fr "$objdir/$(test_oid_to_path "$tree")" &&
+
+ git repack -Ad &&
+ basename $(ls $packdir/pack-*.pack) >in &&
+ git pack-objects --cruft --cruft-expiration="$expire" \
+ $packdir/pack <in
+ )
+ '
+
+ test_expect_success "cruft packs tolerate missing blobs (expire $expire)" '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ test_commit cruft &&
+
+ blob="$(git rev-parse cruft:cruft.t)" &&
+
+ git reset --hard reachable &&
+ git tag -d cruft &&
+ git reflog expire --all --expire=all &&
+
+ # remove the unreachable blob, but leave the commit (and
+ # the root tree of that commit) intact
+ rm -fr "$objdir/$(test_oid_to_path "$blob")" &&
+
+ git repack -Ad &&
+ basename $(ls $packdir/pack-*.pack) >in &&
+ git pack-objects --cruft --cruft-expiration="$expire" \
+ $packdir/pack <in
+ )
+ '
+}
+
+basic_cruft_pack_tests never
+basic_cruft_pack_tests 2.weeks.ago
+
+test_expect_success 'cruft tags rescue tagged objects' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit packed &&
+ git repack -Ad &&
+
+ test_commit tagged &&
+ git tag -a annotated -m tag &&
+
+ git rev-list --objects --no-object-names packed.. >objects &&
+ while read oid
+ do
+ test-tool chmtime -1000 \
+ "$objdir/$(test_oid_to_path $oid)" || exit 1
+ done <objects &&
+
+ test-tool chmtime -500 \
+ "$objdir/$(test_oid_to_path $(git rev-parse annotated))" &&
+
+ keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
+ cruft="$(echo $keep | git pack-objects --cruft \
+ --cruft-expiration=750.seconds.ago \
+ $packdir/pack)" &&
+ test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
+ cut -f1 -d" " <actual.raw | sort >actual &&
+
+ (
+ cat objects &&
+ git rev-parse annotated
+ ) >expect.raw &&
+ sort <expect.raw >expect &&
+
+ test_cmp expect actual &&
+ cat actual
+ )
+'
+
+test_expect_success 'cruft commits rescue parents, trees' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit packed &&
+ git repack -Ad &&
+
+ test_commit old &&
+ test_commit new &&
+
+ git rev-list --objects --no-object-names packed..new >objects &&
+ while read object
+ do
+ test-tool chmtime -1000 \
+ "$objdir/$(test_oid_to_path $object)" || exit 1
+ done <objects &&
+ test-tool chmtime +500 "$objdir/$(test_oid_to_path \
+ $(git rev-parse HEAD))" &&
+
+ keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
+ cruft="$(echo $keep | git pack-objects --cruft \
+ --cruft-expiration=750.seconds.ago \
+ $packdir/pack)" &&
+ test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
+
+ cut -d" " -f1 <actual.raw | sort >actual &&
+ sort <objects >expect &&
+
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'cruft trees rescue sub-trees, blobs' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit packed &&
+ git repack -Ad &&
+
+ mkdir -p dir/sub &&
+ echo foo >foo &&
+ echo bar >dir/bar &&
+ echo baz >dir/sub/baz &&
+
+ test_tick &&
+ git add . &&
+ git commit -m "pruned" &&
+
+ test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD))" &&
+ test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD^{tree}))" &&
+ test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:foo))" &&
+ test-tool chmtime -500 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:dir))" &&
+ test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:dir/bar))" &&
+ test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:dir/sub))" &&
+ test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:dir/sub/baz))" &&
+
+ keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
+ cruft="$(echo $keep | git pack-objects --cruft \
+ --cruft-expiration=750.seconds.ago \
+ $packdir/pack)" &&
+ test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
+ cut -f1 -d" " <actual.raw | sort >actual &&
+
+ git rev-parse HEAD:dir HEAD:dir/bar HEAD:dir/sub HEAD:dir/sub/baz >expect.raw &&
+ sort <expect.raw >expect &&
+
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'expired objects are pruned' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit packed &&
+ git repack -Ad &&
+
+ test_commit pruned &&
+
+ git rev-list --objects --no-object-names packed..pruned >objects &&
+ while read object
+ do
+ test-tool chmtime -1000 \
+ "$objdir/$(test_oid_to_path $object)" || exit 1
+ done <objects &&
+
+ keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
+ cruft="$(echo $keep | git pack-objects --cruft \
+ --cruft-expiration=750.seconds.ago \
+ $packdir/pack)" &&
+
+ test-tool pack-mtimes "pack-$cruft.mtimes" >actual &&
+ test_must_be_empty actual
+ )
+'
+
+test_expect_success 'repack --cruft generates a cruft pack' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ git branch -M main &&
+ git checkout --orphan other &&
+ test_commit unreachable &&
+
+ git checkout main &&
+ git branch -D other &&
+ git tag -d unreachable &&
+ # objects are not cruft if they are contained in the reflogs
+ git reflog expire --all --expire=all &&
+
+ git rev-list --objects --all --no-object-names >reachable.raw &&
+ git cat-file --batch-all-objects --batch-check="%(objectname)" >objects &&
+ sort <reachable.raw >reachable &&
+ comm -13 reachable objects >unreachable &&
+
+ git repack --cruft -d &&
+
+ cruft=$(basename $(ls $packdir/pack-*.mtimes) .mtimes) &&
+ pack=$(basename $(ls $packdir/pack-*.pack | grep -v $cruft) .pack) &&
+
+ git show-index <$packdir/$pack.idx >actual.raw &&
+ cut -f2 -d" " actual.raw | sort >actual &&
+ test_cmp reachable actual &&
+
+ git show-index <$packdir/$cruft.idx >actual.raw &&
+ cut -f2 -d" " actual.raw | sort >actual &&
+ test_cmp unreachable actual
+ )
+'
+
+test_expect_success 'loose objects mtimes upsert others' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ git repack -Ad &&
+ git branch -M main &&
+
+ git checkout --orphan other &&
+ test_commit cruft &&
+ # incremental repack, leaving existing objects loose (so
+ # they can be "freshened")
+ git repack &&
+
+ tip="$(git rev-parse cruft)" &&
+ path="$objdir/$(test_oid_to_path "$tip")" &&
+ test-tool chmtime --get +1000 "$path" >expect &&
+
+ git checkout main &&
+ git branch -D other &&
+ git tag -d cruft &&
+ git reflog expire --all --expire=all &&
+
+ git repack --cruft -d &&
+
+ mtimes="$(basename $(ls $packdir/pack-*.mtimes))" &&
+ test-tool pack-mtimes "$mtimes" >actual.raw &&
+ grep "$tip" actual.raw | cut -d" " -f2 >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'expiring cruft objects with git gc' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ git branch -M main &&
+ git checkout --orphan other &&
+ test_commit unreachable &&
+
+ git checkout main &&
+ git branch -D other &&
+ git tag -d unreachable &&
+ # objects are not cruft if they are contained in the reflogs
+ git reflog expire --all --expire=all &&
+
+ git rev-list --objects --all --no-object-names >reachable.raw &&
+ git cat-file --batch-all-objects --batch-check="%(objectname)" >objects &&
+ sort <reachable.raw >reachable &&
+ comm -13 reachable objects >unreachable &&
+
+ # Write a cruft pack containing all unreachable objects.
+ git gc --cruft --prune="01-01-1980" &&
+
+ mtimes=$(ls .git/objects/pack/pack-*.mtimes) &&
+ test_path_is_file $mtimes &&
+
+ # Prune all unreachable objects from the cruft pack.
+ git gc --cruft --prune=now &&
+
+ git cat-file --batch-all-objects --batch-check="%(objectname)" >objects &&
+
+ comm -23 unreachable objects >removed &&
+ test_cmp unreachable removed &&
+ test_path_is_missing $mtimes
+ )
+'
+
+test_expect_success 'cruft packs are not included in geometric repack' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ git repack -Ad &&
+ git branch -M main &&
+
+ git checkout --orphan other &&
+ test_commit cruft &&
+ git repack -d &&
+
+ git checkout main &&
+ git branch -D other &&
+ git tag -d cruft &&
+ git reflog expire --all --expire=all &&
+
+ git repack --cruft &&
+
+ find $packdir -type f | sort >before &&
+ git repack --geometric=2 -d &&
+ find $packdir -type f | sort >after &&
+
+ test_cmp before after
+ )
+'
+
+test_expect_success 'repack --geometric collects once-cruft objects' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ git repack -Ad &&
+ git branch -M main &&
+
+ git checkout --orphan other &&
+ git rm -rf . &&
+ test_commit --no-tag cruft &&
+ cruft="$(git rev-parse HEAD)" &&
+
+ git checkout main &&
+ git branch -D other &&
+ git reflog expire --all --expire=all &&
+
+ # Pack the objects created in the previous step into a cruft
+ # pack. Intentionally leave loose copies of those objects
+ # around so we can pick them up in a subsequent --geometric
+ # reapack.
+ git repack --cruft &&
+
+ # Now make those objects reachable, and ensure that they are
+ # packed into the new pack created via a --geometric repack.
+ git update-ref refs/heads/other $cruft &&
+
+ # Without this object, the set of unpacked objects is exactly
+ # the set of objects already in the cruft pack. Tweak that set
+ # to ensure we do not overwrite the cruft pack entirely.
+ test_commit reachable2 &&
+
+ find $packdir -name "pack-*.idx" | sort >before &&
+ git repack --geometric=2 -d &&
+ find $packdir -name "pack-*.idx" | sort >after &&
+
+ {
+ git rev-list --objects --no-object-names $cruft &&
+ git rev-list --objects --no-object-names reachable..reachable2
+ } >want.raw &&
+ sort want.raw >want &&
+
+ pack=$(comm -13 before after) &&
+ git show-index <$pack >objects.raw &&
+
+ cut -d" " -f2 objects.raw | sort >got &&
+
+ test_cmp want got
+ )
+'
+
+test_expect_success 'cruft repack with no reachable objects' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit base &&
+ git repack -ad &&
+
+ base="$(git rev-parse base)" &&
+
+ git for-each-ref --format="delete %(refname)" >in &&
+ git update-ref --stdin <in &&
+ git reflog expire --all --expire=all &&
+ rm -fr .git/index &&
+
+ git repack --cruft -d &&
+
+ git cat-file -t $base
+ )
+'
+
+test_expect_success 'cruft repack ignores --max-pack-size' '
+ git init max-pack-size &&
+ (
+ cd max-pack-size &&
+ test_commit base &&
+ # two cruft objects which exceed the maximum pack size
+ test-tool genrandom foo 1048576 | git hash-object --stdin -w &&
+ test-tool genrandom bar 1048576 | git hash-object --stdin -w &&
+ git repack --cruft --max-pack-size=1M &&
+ find $packdir -name "*.mtimes" >cruft &&
+ test_line_count = 1 cruft &&
+ test-tool pack-mtimes "$(basename "$(cat cruft)")" >objects &&
+ test_line_count = 2 objects
+ )
+'
+
+test_expect_success 'cruft repack ignores pack.packSizeLimit' '
+ (
+ cd max-pack-size &&
+ # repack everything back together to remove the existing cruft
+ # pack (but to keep its objects)
+ git repack -adk &&
+ git -c pack.packSizeLimit=1M repack --cruft &&
+ # ensure the same post condition is met when --max-pack-size
+ # would otherwise be inferred from the configuration
+ find $packdir -name "*.mtimes" >cruft &&
+ test_line_count = 1 cruft &&
+ test-tool pack-mtimes "$(basename "$(cat cruft)")" >objects &&
+ test_line_count = 2 objects
+ )
+'
+
+test_expect_success 'cruft repack respects repack.cruftWindow' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit base &&
+
+ GIT_TRACE2_EVENT=$(pwd)/event.trace \
+ git -c pack.window=1 -c repack.cruftWindow=2 repack \
+ --cruft --window=3 &&
+
+ grep "pack-objects.*--window=2.*--cruft" event.trace
+ )
+'
+
+test_expect_success 'cruft repack respects --window by default' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit base &&
+
+ GIT_TRACE2_EVENT=$(pwd)/event.trace \
+ git -c pack.window=2 repack --cruft --window=3 &&
+
+ grep "pack-objects.*--window=3.*--cruft" event.trace
+ )
+'
+
+test_expect_success 'cruft repack respects --quiet' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit base &&
+ GIT_PROGRESS_DELAY=0 git repack --cruft --quiet 2>err &&
+ test_must_be_empty err
+ )
+'
+
+test_expect_success 'cruft --local drops unreachable objects' '
+ git init alternate &&
+ git init repo &&
+ test_when_finished "rm -fr alternate repo" &&
+
+ test_commit -C alternate base &&
+ # Pack all objects in alterate so that the cruft repack in "repo" sees
+ # the object it dropped due to `--local` as packed. Otherwise this
+ # object would not appear packed anywhere (since it is not packed in
+ # alternate and likewise not part of the cruft pack in the other repo
+ # because of `--local`).
+ git -C alternate repack -ad &&
+
+ (
+ cd repo &&
+
+ object="$(git -C ../alternate rev-parse HEAD:base.t)" &&
+ git -C ../alternate cat-file -p $object >contents &&
+
+ # Write some reachable objects and two unreachable ones: one
+ # that the alternate has and another that is unique.
+ test_commit other &&
+ git hash-object -w -t blob contents &&
+ cruft="$(echo cruft | git hash-object -w -t blob --stdin)" &&
+
+ ( cd ../alternate/.git/objects && pwd ) \
+ >.git/objects/info/alternates &&
+
+ test_path_is_file $objdir/$(test_oid_to_path $cruft) &&
+ test_path_is_file $objdir/$(test_oid_to_path $object) &&
+
+ git repack -d --cruft --local &&
+
+ test-tool pack-mtimes "$(basename $(ls $packdir/pack-*.mtimes))" \
+ >objects &&
+ ! grep $object objects &&
+ grep $cruft objects
+ )
+'
+
+test_expect_success 'MIDX bitmaps tolerate reachable cruft objects' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit reachable &&
+ test_commit cruft &&
+ unreachable="$(git rev-parse cruft)" &&
+
+ git reset --hard $unreachable^ &&
+ git tag -d cruft &&
+ git reflog expire --all --expire=all &&
+
+ git repack --cruft -d &&
+
+ # resurrect the unreachable object via a new commit. the
+ # new commit will get selected for a bitmap, but be
+ # missing one of its parents from the selected packs.
+ git reset --hard $unreachable &&
+ test_commit resurrect &&
+
+ git repack --write-midx --write-bitmap-index --geometric=2 -d
+ )
+'
+
+test_expect_success 'cruft objects are freshend via loose' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ echo "cruft" >contents &&
+ blob="$(git hash-object -w -t blob contents)" &&
+ loose="$objdir/$(test_oid_to_path $blob)" &&
+
+ test_commit base &&
+
+ git repack --cruft -d &&
+
+ test_path_is_missing "$loose" &&
+ test-tool pack-mtimes "$(basename "$(ls $packdir/pack-*.mtimes)")" >cruft &&
+ grep "$blob" cruft &&
+
+ # write the same object again
+ git hash-object -w -t blob contents &&
+
+ test_path_is_file "$loose"
+ )
+'
+
+test_done