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git/t/t7700-repack.sh
Derrick Stolee 0af067276e builtin/repack.c: only repack .packs that exist 
In 73320e49ad (builtin/repack.c: only collect fully-formed packs,
2023-06-07), we switched the check for which packs to collect by
starting at the .idx files and looking for matching .pack files. This
avoids trying to repack pack-files that have not had their pack-indexes
installed yet.

However, it does cause maintenance to halt if we find the (problematic,
but not insurmountable) case of a .idx file without a corresponding
.pack file. In an environment where packfile maintenance is a critical
function, such a hard stop is costly and requires human intervention to
resolve (by deleting the .idx file).

This was not the case before. We successfully repacked through this
scenario until the recent change to scan for .idx files.

Further, if we are actually in a case where objects are missing, we
detect this at a different point during the reachability walk.

In other cases, Git prepares its list of packfiles by scanning .idx
files and then only adds it to the packfile list if the corresponding
.pack file exists. It even does so without a warning! (See
add_packed_git() in packfile.c for details.)

This case is much less likely to occur than the failures seen before
73320e49ad. Packfiles are "installed" by writing the .pack file before
the .idx and that process can be interrupted. Packfiles _should_ be
deleted by deleting the .idx first, followed by the .pack file, but
unlink_pack_path() does not do this: it deletes the .pack _first_,
allowing a window where this process could be interrupted. We leave the
consideration of changing this order as a separate concern. Knowing that
this condition is possible from interrupted Git processes and not other
tools lends some weight that Git should be more flexible around this
scenario.

Add a check to see if the .pack file exists before adding it to the list
for repacking. This will stop a number of maintenance failures seen in
production but fixed by deleting the .idx files.

This brings us closer to the case before 73320e49ad in that 'git
repack' will not fail when there is an orphaned .idx file, at least, not
due to the way we scan for packfiles. In the case that the .pack file
was erroneously deleted without copies of its objects in other installed
packfiles, then 'git repack' will fail due to the reachable object walk.

This does resolve the case where automated repacks will no longer be
halted on this case. The tests in t7700 show both these successful
scenarios and the case of failing if the .pack was truly required.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-11 13:07:50 -07:00

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#!/bin/sh
test_description='git repack works correctly'
. ./test-lib.sh
. "${TEST_DIRECTORY}/lib-bitmap.sh"
. "${TEST_DIRECTORY}/lib-midx.sh"
. "${TEST_DIRECTORY}/lib-terminal.sh"
commit_and_pack () {
test_commit "$@" 1>&2 &&
incrpackid=$(git pack-objects --all --unpacked --incremental .git/objects/pack/pack </dev/null) &&
# Remove any loose object(s) created by test_commit, since they have
# already been packed. Leaving these around can create subtly different
# packs with `pack-objects`'s `--unpacked` option.
git prune-packed 1>&2 &&
echo pack-${incrpackid}.pack
}
test_no_missing_in_packs () {
myidx=$(ls -1 .git/objects/pack/*.idx) &&
test_path_is_file "$myidx" &&
git verify-pack -v alt_objects/pack/*.idx >orig.raw &&
sed -n -e "s/^\($OID_REGEX\).*/\1/p" orig.raw | sort >orig &&
git verify-pack -v $myidx >dest.raw &&
cut -d" " -f1 dest.raw | sort >dest &&
comm -23 orig dest >missing &&
test_must_be_empty missing
}
# we expect $packid and $oid to be defined
test_has_duplicate_object () {
want_duplicate_object="$1"
found_duplicate_object=false
for p in .git/objects/pack/*.idx
do
idx=$(basename $p)
test "pack-$packid.idx" = "$idx" && continue
git verify-pack -v $p >packlist || return $?
if grep "^$oid" packlist
then
found_duplicate_object=true
echo "DUPLICATE OBJECT FOUND"
break
fi
done &&
test "$want_duplicate_object" = "$found_duplicate_object"
}
test_expect_success 'objects in packs marked .keep are not repacked' '
echo content1 >file1 &&
echo content2 >file2 &&
git add . &&
test_tick &&
git commit -m initial_commit &&
# Create two packs
# The first pack will contain all of the objects except one
git rev-list --objects --all >objs &&
grep -v file2 objs | git pack-objects pack &&
# The second pack will contain the excluded object
packid=$(grep file2 objs | git pack-objects pack) &&
>pack-$packid.keep &&
git verify-pack -v pack-$packid.idx >packlist &&
oid=$(head -n 1 packlist | sed -e "s/^\($OID_REGEX\).*/\1/") &&
mv pack-* .git/objects/pack/ &&
git repack -A -d -l &&
git prune-packed &&
test_has_duplicate_object false
'
test_expect_success 'writing bitmaps via command-line can duplicate .keep objects' '
# build on $oid, $packid, and .keep state from previous
GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 git repack -Adbl &&
test_has_duplicate_object true
'
test_expect_success 'writing bitmaps via config can duplicate .keep objects' '
# build on $oid, $packid, and .keep state from previous
GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
git -c repack.writebitmaps=true repack -Adl &&
test_has_duplicate_object true
'
test_expect_success 'loose objects in alternate ODB are not repacked' '
mkdir alt_objects &&
echo $(pwd)/alt_objects >.git/objects/info/alternates &&
echo content3 >file3 &&
oid=$(GIT_OBJECT_DIRECTORY=alt_objects git hash-object -w file3) &&
git add file3 &&
test_tick &&
git commit -m commit_file3 &&
git repack -a -d -l &&
git prune-packed &&
test_has_duplicate_object false
'
test_expect_success SYMLINKS '--local keeps packs when alternate is objectdir ' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
(
cd repo &&
git repack -a &&
ls .git/objects/pack/*.pack >../expect &&
ln -s objects .git/alt_objects &&
echo "$(pwd)/.git/alt_objects" >.git/objects/info/alternates &&
git repack -a -d -l &&
ls .git/objects/pack/*.pack >../actual
) &&
test_cmp expect actual
'
test_expect_success '--local disables writing bitmaps when connected to alternate ODB' '
test_when_finished "rm -rf shared member" &&
git init shared &&
git clone --shared shared member &&
(
cd member &&
test_commit "object" &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -Adl --write-bitmap-index 2>err &&
cat >expect <<-EOF &&
warning: disabling bitmap writing, as some objects are not being packed
EOF
test_cmp expect err &&
test_path_is_missing .git/objects/pack-*.bitmap
)
'
test_expect_success 'packed obs in alt ODB are repacked even when local repo is packless' '
mkdir alt_objects/pack &&
mv .git/objects/pack/* alt_objects/pack &&
git repack -a &&
test_no_missing_in_packs
'
test_expect_success 'packed obs in alt ODB are repacked when local repo has packs' '
rm -f .git/objects/pack/* &&
echo new_content >>file1 &&
git add file1 &&
test_tick &&
git commit -m more_content &&
git repack &&
git repack -a -d &&
test_no_missing_in_packs
'
test_expect_success 'packed obs in alternate ODB kept pack are repacked' '
# swap the .keep so the commit object is in the pack with .keep
for p in alt_objects/pack/*.pack
do
base_name=$(basename $p .pack) &&
if test_path_is_file alt_objects/pack/$base_name.keep
then
rm alt_objects/pack/$base_name.keep
else
touch alt_objects/pack/$base_name.keep
fi || return 1
done &&
git repack -a -d &&
test_no_missing_in_packs
'
test_expect_success 'packed unreachable obs in alternate ODB are not loosened' '
rm -f alt_objects/pack/*.keep &&
mv .git/objects/pack/* alt_objects/pack/ &&
coid=$(git rev-parse HEAD^{commit}) &&
git reset --hard HEAD^ &&
test_tick &&
git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all &&
# The pack-objects call on the next line is equivalent to
# git repack -A -d without the call to prune-packed
git pack-objects --honor-pack-keep --non-empty --all --reflog \
--unpack-unreachable </dev/null pack &&
rm -f .git/objects/pack/* &&
mv pack-* .git/objects/pack/ &&
git verify-pack -v -- .git/objects/pack/*.idx >packlist &&
! grep "^$coid " packlist &&
echo >.git/objects/info/alternates &&
test_must_fail git show $coid
'
test_expect_success 'local packed unreachable obs that exist in alternate ODB are not loosened' '
echo $(pwd)/alt_objects >.git/objects/info/alternates &&
echo "$coid" | git pack-objects --non-empty --all --reflog pack &&
rm -f .git/objects/pack/* &&
mv pack-* .git/objects/pack/ &&
# The pack-objects call on the next line is equivalent to
# git repack -A -d without the call to prune-packed
git pack-objects --honor-pack-keep --non-empty --all --reflog \
--unpack-unreachable </dev/null pack &&
rm -f .git/objects/pack/* &&
mv pack-* .git/objects/pack/ &&
git verify-pack -v -- .git/objects/pack/*.idx >packlist &&
! grep "^$coid " &&
echo >.git/objects/info/alternates &&
test_must_fail git show $coid
'
test_expect_success 'objects made unreachable by grafts only are kept' '
test_tick &&
git commit --allow-empty -m "commit 4" &&
H0=$(git rev-parse HEAD) &&
H1=$(git rev-parse HEAD^) &&
H2=$(git rev-parse HEAD^^) &&
echo "$H0 $H2" >.git/info/grafts &&
git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all &&
git repack -a -d &&
git cat-file -t $H1
'
test_expect_success 'repack --keep-pack' '
test_create_repo keep-pack &&
(
cd keep-pack &&
# avoid producing different packs due to delta/base choices
git config pack.window 0 &&
P1=$(commit_and_pack 1) &&
P2=$(commit_and_pack 2) &&
P3=$(commit_and_pack 3) &&
P4=$(commit_and_pack 4) &&
ls .git/objects/pack/*.pack >old-counts &&
test_line_count = 4 old-counts &&
git repack -a -d --keep-pack $P1 --keep-pack $P4 &&
ls .git/objects/pack/*.pack >new-counts &&
grep -q $P1 new-counts &&
grep -q $P4 new-counts &&
test_line_count = 3 new-counts &&
git fsck &&
P5=$(commit_and_pack --no-tag 5) &&
git reset --hard HEAD^ &&
git reflog expire --all --expire=all &&
rm -f ".git/objects/pack/${P5%.pack}.idx" &&
rm -f ".git/objects/info/commit-graph" &&
for from in $(find .git/objects/pack -type f -name "${P5%.pack}.*")
do
to="$(dirname "$from")/.tmp-1234-$(basename "$from")" &&
mv "$from" "$to" || return 1
done &&
# A .idx file without a .pack should not stop us from
# repacking what we can.
touch .git/objects/pack/pack-does-not-exist.idx &&
git repack --cruft -d --keep-pack $P1 --keep-pack $P4 &&
ls .git/objects/pack/*.pack >newer-counts &&
test_cmp new-counts newer-counts &&
git fsck
)
'
test_expect_success 'repacking fails when missing .pack actually means missing objects' '
test_create_repo idx-without-pack &&
(
cd idx-without-pack &&
# Avoid producing different packs due to delta/base choices
git config pack.window 0 &&
P1=$(commit_and_pack 1) &&
P2=$(commit_and_pack 2) &&
P3=$(commit_and_pack 3) &&
P4=$(commit_and_pack 4) &&
ls .git/objects/pack/*.pack >old-counts &&
test_line_count = 4 old-counts &&
# Remove one .pack file
rm .git/objects/pack/$P2 &&
ls .git/objects/pack/*.pack >before-pack-dir &&
test_must_fail git fsck &&
test_must_fail git repack --cruft -d 2>err &&
grep "bad object" err &&
# Before failing, the repack did not modify the
# pack directory.
ls .git/objects/pack/*.pack >after-pack-dir &&
test_cmp before-pack-dir after-pack-dir
)
'
test_expect_success 'bitmaps are created by default in bare repos' '
git clone --bare .git bare.git &&
rm -f bare.git/objects/pack/*.bitmap &&
GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
git -C bare.git repack -ad &&
bitmap=$(ls bare.git/objects/pack/*.bitmap) &&
test_path_is_file "$bitmap"
'
test_expect_success 'incremental repack does not complain' '
git -C bare.git repack -q 2>repack.err &&
test_must_be_empty repack.err
'
test_expect_success 'bitmaps can be disabled on bare repos' '
GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
git -c repack.writeBitmaps=false -C bare.git repack -ad &&
bitmap=$(ls bare.git/objects/pack/*.bitmap || :) &&
test -z "$bitmap"
'
test_expect_success 'no bitmaps created if .keep files present' '
pack=$(ls bare.git/objects/pack/*.pack) &&
test_path_is_file "$pack" &&
keep=${pack%.pack}.keep &&
test_when_finished "rm -f \"\$keep\"" &&
>"$keep" &&
GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
git -C bare.git repack -ad 2>stderr &&
test_must_be_empty stderr &&
find bare.git/objects/pack/ -type f -name "*.bitmap" >actual &&
test_must_be_empty actual
'
test_expect_success 'auto-bitmaps do not complain if unavailable' '
test_config -C bare.git pack.packSizeLimit 1M &&
blob=$(test-tool genrandom big $((1024*1024)) |
git -C bare.git hash-object -w --stdin) &&
git -C bare.git update-ref refs/tags/big $blob &&
GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
git -C bare.git repack -ad 2>stderr &&
test_must_be_empty stderr &&
find bare.git/objects/pack -type f -name "*.bitmap" >actual &&
test_must_be_empty actual
'
objdir=.git/objects
midx=$objdir/pack/multi-pack-index
test_expect_success 'setup for --write-midx tests' '
git init midx &&
(
cd midx &&
git config core.multiPackIndex true &&
test_commit base
)
'
test_expect_success '--write-midx unchanged' '
(
cd midx &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack &&
test_path_is_missing $midx &&
test_path_is_missing $midx-*.bitmap &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack --write-midx &&
test_path_is_file $midx &&
test_path_is_missing $midx-*.bitmap &&
test_midx_consistent $objdir
)
'
test_expect_success '--write-midx with a new pack' '
(
cd midx &&
test_commit loose &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack --write-midx &&
test_path_is_file $midx &&
test_path_is_missing $midx-*.bitmap &&
test_midx_consistent $objdir
)
'
test_expect_success '--write-midx with -b' '
(
cd midx &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -mb &&
test_path_is_file $midx &&
test_path_is_file $midx-*.bitmap &&
test_midx_consistent $objdir
)
'
test_expect_success '--write-midx with -d' '
(
cd midx &&
test_commit repack &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -Ad --write-midx &&
test_path_is_file $midx &&
test_path_is_missing $midx-*.bitmap &&
test_midx_consistent $objdir
)
'
test_expect_success 'cleans up MIDX when appropriate' '
(
cd midx &&
test_commit repack-2 &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -Adb --write-midx &&
checksum=$(midx_checksum $objdir) &&
test_path_is_file $midx &&
test_path_is_file $midx-$checksum.bitmap &&
test_commit repack-3 &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -Adb --write-midx &&
test_path_is_file $midx &&
test_path_is_missing $midx-$checksum.bitmap &&
test_path_is_file $midx-$(midx_checksum $objdir).bitmap &&
test_commit repack-4 &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -Adb &&
find $objdir/pack -type f -name "multi-pack-index*" >files &&
test_must_be_empty files
)
'
test_expect_success '--write-midx with preferred bitmap tips' '
git init midx-preferred-tips &&
test_when_finished "rm -fr midx-preferred-tips" &&
(
cd midx-preferred-tips &&
test_commit_bulk --message="%s" 103 &&
git log --format="%H" >commits.raw &&
sort <commits.raw >commits &&
git log --format="create refs/tags/%s/%s %H" HEAD >refs &&
git update-ref --stdin <refs &&
git repack --write-midx --write-bitmap-index &&
test_path_is_file $midx &&
test_path_is_file $midx-$(midx_checksum $objdir).bitmap &&
test-tool bitmap list-commits | sort >bitmaps &&
comm -13 bitmaps commits >before &&
test_line_count = 1 before &&
rm -fr $midx-$(midx_checksum $objdir).bitmap &&
rm -fr $midx &&
# instead of constructing the snapshot ourselves (c.f., the test
# "write a bitmap with --refs-snapshot (preferred tips)" in
# t5326), mark the missing commit as preferred by adding it to
# the pack.preferBitmapTips configuration.
git for-each-ref --format="%(refname:rstrip=1)" \
--points-at="$(cat before)" >missing &&
git config pack.preferBitmapTips "$(cat missing)" &&
git repack --write-midx --write-bitmap-index &&
test-tool bitmap list-commits | sort >bitmaps &&
comm -13 bitmaps commits >after &&
! test_cmp before after
)
'
# The first argument is expected to be a filename
# and that file should contain the name of a .idx
# file. Send the list of objects in that .idx file
# into stdout.
get_sorted_objects_from_pack () {
git show-index <$(cat "$1") >raw &&
cut -d" " -f2 raw
}
test_expect_success '--write-midx -b packs non-kept objects' '
git init repo &&
test_when_finished "rm -fr repo" &&
(
cd repo &&
# Create a kept pack-file
test_commit base &&
git repack -ad &&
find $objdir/pack -name "*.idx" >before &&
test_line_count = 1 before &&
before_name=$(cat before) &&
>${before_name%.idx}.keep &&
# Create a non-kept pack-file
test_commit other &&
git repack &&
# Create loose objects
test_commit loose &&
# Repack everything
git repack --write-midx -a -b -d &&
# There should be two pack-files now, the
# old, kept pack and the new, non-kept pack.
find $objdir/pack -name "*.idx" | sort >after &&
test_line_count = 2 after &&
find $objdir/pack -name "*.keep" >kept &&
kept_name=$(cat kept) &&
echo ${kept_name%.keep}.idx >kept-idx &&
test_cmp before kept-idx &&
# Get object list from the kept pack.
get_sorted_objects_from_pack before >old.objects &&
# Get object list from the one non-kept pack-file
comm -13 before after >new-pack &&
test_line_count = 1 new-pack &&
get_sorted_objects_from_pack new-pack >new.objects &&
# None of the objects in the new pack should
# exist within the kept pack.
comm -12 old.objects new.objects >shared.objects &&
test_must_be_empty shared.objects
)
'
test_expect_success '--write-midx removes stale pack-based bitmaps' '
rm -fr repo &&
git init repo &&
test_when_finished "rm -fr repo" &&
(
cd repo &&
test_commit base &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -Ab &&
pack_bitmap=$(ls $objdir/pack/pack-*.bitmap) &&
test_path_is_file "$pack_bitmap" &&
test_commit tip &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -bm &&
test_path_is_file $midx &&
test_path_is_file $midx-$(midx_checksum $objdir).bitmap &&
test_path_is_missing $pack_bitmap
)
'
test_expect_success '--write-midx with --pack-kept-objects' '
git init repo &&
test_when_finished "rm -fr repo" &&
(
cd repo &&
test_commit one &&
test_commit two &&
one="$(echo "one" | git pack-objects --revs $objdir/pack/pack)" &&
two="$(echo "one..two" | git pack-objects --revs $objdir/pack/pack)" &&
keep="$objdir/pack/pack-$one.keep" &&
touch "$keep" &&
git repack --write-midx --write-bitmap-index --geometric=2 -d \
--pack-kept-objects &&
test_path_is_file $keep &&
test_path_is_file $midx &&
test_path_is_file $midx-$(midx_checksum $objdir).bitmap
)
'
test_expect_success TTY '--quiet disables progress' '
test_terminal env GIT_PROGRESS_DELAY=0 \
git -C midx repack -ad --quiet --write-midx 2>stderr &&
test_must_be_empty stderr
'
test_expect_success 'clean up .tmp-* packs on error' '
test_must_fail ok=sigpipe git \
-c repack.cruftwindow=bogus \
repack -ad --cruft &&
find $objdir/pack -name '.tmp-*' >tmpfiles &&
test_must_be_empty tmpfiles
'
test_expect_success 'repack -ad cleans up old .tmp-* packs' '
git rev-parse HEAD >input &&
git pack-objects $objdir/pack/.tmp-1234 <input &&
git repack -ad &&
find $objdir/pack -name '.tmp-*' >tmpfiles &&
test_must_be_empty tmpfiles
'
test_expect_success 'setup for update-server-info' '
git init update-server-info &&
test_commit -C update-server-info message
'
test_server_info_present () {
test_path_is_file update-server-info/.git/objects/info/packs &&
test_path_is_file update-server-info/.git/info/refs
}
test_server_info_missing () {
test_path_is_missing update-server-info/.git/objects/info/packs &&
test_path_is_missing update-server-info/.git/info/refs
}
test_server_info_cleanup () {
rm -f update-server-info/.git/objects/info/packs update-server-info/.git/info/refs &&
test_server_info_missing
}
test_expect_success 'updates server info by default' '
test_server_info_cleanup &&
git -C update-server-info repack &&
test_server_info_present
'
test_expect_success '-n skips updating server info' '
test_server_info_cleanup &&
git -C update-server-info repack -n &&
test_server_info_missing
'
test_expect_success 'repack.updateServerInfo=true updates server info' '
test_server_info_cleanup &&
git -C update-server-info -c repack.updateServerInfo=true repack &&
test_server_info_present
'
test_expect_success 'repack.updateServerInfo=false skips updating server info' '
test_server_info_cleanup &&
git -C update-server-info -c repack.updateServerInfo=false repack &&
test_server_info_missing
'
test_expect_success '-n overrides repack.updateServerInfo=true' '
test_server_info_cleanup &&
git -C update-server-info -c repack.updateServerInfo=true repack -n &&
test_server_info_missing
'
test_expect_success '--expire-to stores pruned objects (now)' '
git init expire-to-now &&
(
cd expire-to-now &&
git branch -M main &&
test_commit base &&
git checkout -b cruft &&
test_commit --no-tag cruft &&
git rev-list --objects --no-object-names main..cruft >moved.raw &&
sort moved.raw >moved.want &&
git rev-list --all --objects --no-object-names >expect.raw &&
sort expect.raw >expect &&
git checkout main &&
git branch -D cruft &&
git reflog expire --all --expire=all &&
git init --bare expired.git &&
git repack -d \
--cruft --cruft-expiration="now" \
--expire-to="expired.git/objects/pack/pack" &&
expired="$(ls expired.git/objects/pack/pack-*.idx)" &&
test_path_is_file "${expired%.idx}.mtimes" &&
# Since the `--cruft-expiration` is "now", the effective
# behavior is to move _all_ unreachable objects out to
# the location in `--expire-to`.
git show-index <$expired >expired.raw &&
cut -d" " -f2 expired.raw | sort >expired.objects &&
git rev-list --all --objects --no-object-names \
>remaining.objects &&
# ...in other words, the combined contents of this
# repository and expired.git should be the same as the
# set of objects we started with.
cat expired.objects remaining.objects | sort >actual &&
test_cmp expect actual &&
# The "moved" objects (i.e., those in expired.git)
# should be the same as the cruft objects which were
# expired in the previous step.
test_cmp moved.want expired.objects
)
'
test_expect_success '--expire-to stores pruned objects (5.minutes.ago)' '
git init expire-to-5.minutes.ago &&
(
cd expire-to-5.minutes.ago &&
git branch -M main &&
test_commit base &&
# Create two classes of unreachable objects, one which
# is older than 5 minutes (stale), and another which is
# newer (recent).
for kind in stale recent
do
git checkout -b $kind main &&
test_commit --no-tag $kind || return 1
done &&
git rev-list --objects --no-object-names main..stale >in &&
stale="$(git pack-objects $objdir/pack/pack <in)" &&
mtime="$(test-tool chmtime --get =-600 $objdir/pack/pack-$stale.pack)" &&
# expect holds the set of objects we expect to find in
# this repository after repacking
git rev-list --objects --no-object-names recent >expect.raw &&
sort expect.raw >expect &&
# moved.want holds the set of objects we expect to find
# in expired.git
git rev-list --objects --no-object-names main..stale >out &&
sort out >moved.want &&
git checkout main &&
git branch -D stale recent &&
git reflog expire --all --expire=all &&
git prune-packed &&
git init --bare expired.git &&
git repack -d \
--cruft --cruft-expiration=5.minutes.ago \
--expire-to="expired.git/objects/pack/pack" &&
# Some of the remaining objects in this repository are
# unreachable, so use `cat-file --batch-all-objects`
# instead of `rev-list` to get their names
git cat-file --batch-all-objects --batch-check="%(objectname)" \
>remaining.objects &&
sort remaining.objects >actual &&
test_cmp expect actual &&
(
cd expired.git &&
expired="$(ls objects/pack/pack-*.mtimes)" &&
test-tool pack-mtimes $(basename $expired) >out &&
cut -d" " -f1 out | sort >../moved.got &&
# Ensure that there are as many objects with the
# expected mtime as were moved to expired.git.
#
# In other words, ensure that the recorded
# mtimes of any moved objects was written
# correctly.
grep " $mtime$" out >matching &&
test_line_count = $(wc -l <../moved.want) matching
) &&
test_cmp moved.want moved.got
)
'
test_done
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