751 lines
20 KiB
Bash
Executable File
751 lines
20 KiB
Bash
Executable File
#!/bin/sh
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test_description='cruft pack related pack-objects tests'
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. ./test-lib.sh
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objdir=.git/objects
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packdir=$objdir/pack
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basic_cruft_pack_tests () {
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expire="$1"
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test_expect_success "unreachable loose objects are packed (expire $expire)" '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit base &&
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git repack -Ad &&
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test_commit loose &&
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test-tool chmtime +2000 "$objdir/$(test_oid_to_path \
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$(git rev-parse loose:loose.t))" &&
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test-tool chmtime +1000 "$objdir/$(test_oid_to_path \
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$(git rev-parse loose^{tree}))" &&
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(
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git rev-list --objects --no-object-names base..loose |
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while read oid
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do
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path="$objdir/$(test_oid_to_path "$oid")" &&
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printf "%s %d\n" "$oid" "$(test-tool chmtime --get "$path")" ||
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echo "object list generation failed for $oid"
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done |
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sort -k1
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) >expect &&
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keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
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cruft="$(echo $keep | git pack-objects --cruft \
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--cruft-expiration="$expire" $packdir/pack)" &&
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test-tool pack-mtimes "pack-$cruft.mtimes" >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success "unreachable packed objects are packed (expire $expire)" '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit packed &&
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git repack -Ad &&
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test_commit other &&
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git rev-list --objects --no-object-names packed.. >objects &&
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keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
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other="$(git pack-objects --delta-base-offset \
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$packdir/pack <objects)" &&
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git prune-packed &&
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test-tool chmtime --get -100 "$packdir/pack-$other.pack" >expect &&
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cruft="$(git pack-objects --cruft --cruft-expiration="$expire" $packdir/pack <<-EOF
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$keep
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-pack-$other.pack
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EOF
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)" &&
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test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
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cut -d" " -f2 <actual.raw | sort -u >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success "unreachable cruft objects are repacked (expire $expire)" '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit packed &&
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git repack -Ad &&
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test_commit other &&
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git rev-list --objects --no-object-names packed.. >objects &&
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keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
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cruft_a="$(echo $keep | git pack-objects --cruft --cruft-expiration="$expire" $packdir/pack)" &&
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git prune-packed &&
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cruft_b="$(git pack-objects --cruft --cruft-expiration="$expire" $packdir/pack <<-EOF
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$keep
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-pack-$cruft_a.pack
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EOF
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)" &&
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test-tool pack-mtimes "pack-$cruft_a.mtimes" >expect.raw &&
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test-tool pack-mtimes "pack-$cruft_b.mtimes" >actual.raw &&
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sort <expect.raw >expect &&
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sort <actual.raw >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success "multiple cruft packs (expire $expire)" '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit reachable &&
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git repack -Ad &&
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keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
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test_commit cruft &&
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loose="$objdir/$(test_oid_to_path $(git rev-parse cruft))" &&
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# generate three copies of the cruft object in different
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# cruft packs, each with a unique mtime:
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# - one expired (1000 seconds ago)
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# - two non-expired (one 1000 seconds in the future,
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# one 1500 seconds in the future)
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test-tool chmtime =-1000 "$loose" &&
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git pack-objects --cruft $packdir/pack-A <<-EOF &&
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$keep
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EOF
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test-tool chmtime =+1000 "$loose" &&
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git pack-objects --cruft $packdir/pack-B <<-EOF &&
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$keep
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-$(basename $(ls $packdir/pack-A-*.pack))
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EOF
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test-tool chmtime =+1500 "$loose" &&
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git pack-objects --cruft $packdir/pack-C <<-EOF &&
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$keep
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-$(basename $(ls $packdir/pack-A-*.pack))
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-$(basename $(ls $packdir/pack-B-*.pack))
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EOF
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# ensure the resulting cruft pack takes the most recent
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# mtime among all copies
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cruft="$(git pack-objects --cruft \
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--cruft-expiration="$expire" \
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$packdir/pack <<-EOF
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$keep
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-$(basename $(ls $packdir/pack-A-*.pack))
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-$(basename $(ls $packdir/pack-B-*.pack))
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-$(basename $(ls $packdir/pack-C-*.pack))
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EOF
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)" &&
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test-tool pack-mtimes "$(basename $(ls $packdir/pack-C-*.mtimes))" >expect.raw &&
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test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
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sort expect.raw >expect &&
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sort actual.raw >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success "cruft packs tolerate missing trees (expire $expire)" '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit reachable &&
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test_commit cruft &&
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tree="$(git rev-parse cruft^{tree})" &&
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git reset --hard reachable &&
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git tag -d cruft &&
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git reflog expire --all --expire=all &&
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# remove the unreachable tree, but leave the commit
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# which has it as its root tree intact
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rm -fr "$objdir/$(test_oid_to_path "$tree")" &&
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git repack -Ad &&
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basename $(ls $packdir/pack-*.pack) >in &&
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git pack-objects --cruft --cruft-expiration="$expire" \
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$packdir/pack <in
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)
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'
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test_expect_success "cruft packs tolerate missing blobs (expire $expire)" '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit reachable &&
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test_commit cruft &&
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blob="$(git rev-parse cruft:cruft.t)" &&
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git reset --hard reachable &&
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git tag -d cruft &&
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git reflog expire --all --expire=all &&
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# remove the unreachable blob, but leave the commit (and
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# the root tree of that commit) intact
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rm -fr "$objdir/$(test_oid_to_path "$blob")" &&
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git repack -Ad &&
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basename $(ls $packdir/pack-*.pack) >in &&
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git pack-objects --cruft --cruft-expiration="$expire" \
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$packdir/pack <in
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)
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'
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}
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basic_cruft_pack_tests never
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basic_cruft_pack_tests 2.weeks.ago
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test_expect_success 'cruft tags rescue tagged objects' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit packed &&
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git repack -Ad &&
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test_commit tagged &&
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git tag -a annotated -m tag &&
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git rev-list --objects --no-object-names packed.. >objects &&
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while read oid
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do
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test-tool chmtime -1000 \
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"$objdir/$(test_oid_to_path $oid)" || exit 1
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done <objects &&
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test-tool chmtime -500 \
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"$objdir/$(test_oid_to_path $(git rev-parse annotated))" &&
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keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
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cruft="$(echo $keep | git pack-objects --cruft \
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--cruft-expiration=750.seconds.ago \
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$packdir/pack)" &&
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test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
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cut -f1 -d" " <actual.raw | sort >actual &&
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(
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cat objects &&
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git rev-parse annotated
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) >expect.raw &&
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sort <expect.raw >expect &&
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test_cmp expect actual &&
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cat actual
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)
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'
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test_expect_success 'cruft commits rescue parents, trees' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit packed &&
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git repack -Ad &&
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test_commit old &&
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test_commit new &&
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git rev-list --objects --no-object-names packed..new >objects &&
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while read object
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do
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test-tool chmtime -1000 \
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"$objdir/$(test_oid_to_path $object)" || exit 1
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done <objects &&
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test-tool chmtime +500 "$objdir/$(test_oid_to_path \
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$(git rev-parse HEAD))" &&
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keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
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cruft="$(echo $keep | git pack-objects --cruft \
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--cruft-expiration=750.seconds.ago \
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$packdir/pack)" &&
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test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
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cut -d" " -f1 <actual.raw | sort >actual &&
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sort <objects >expect &&
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test_cmp expect actual
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)
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'
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test_expect_success 'cruft trees rescue sub-trees, blobs' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit packed &&
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git repack -Ad &&
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mkdir -p dir/sub &&
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echo foo >foo &&
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echo bar >dir/bar &&
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echo baz >dir/sub/baz &&
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test_tick &&
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git add . &&
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git commit -m "pruned" &&
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test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD))" &&
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test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD^{tree}))" &&
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test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:foo))" &&
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test-tool chmtime -500 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:dir))" &&
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test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:dir/bar))" &&
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test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:dir/sub))" &&
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test-tool chmtime -1000 "$objdir/$(test_oid_to_path $(git rev-parse HEAD:dir/sub/baz))" &&
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keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
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cruft="$(echo $keep | git pack-objects --cruft \
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--cruft-expiration=750.seconds.ago \
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$packdir/pack)" &&
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test-tool pack-mtimes "pack-$cruft.mtimes" >actual.raw &&
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cut -f1 -d" " <actual.raw | sort >actual &&
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git rev-parse HEAD:dir HEAD:dir/bar HEAD:dir/sub HEAD:dir/sub/baz >expect.raw &&
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sort <expect.raw >expect &&
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test_cmp expect actual
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)
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'
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test_expect_success 'expired objects are pruned' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit packed &&
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git repack -Ad &&
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test_commit pruned &&
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git rev-list --objects --no-object-names packed..pruned >objects &&
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while read object
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do
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test-tool chmtime -1000 \
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"$objdir/$(test_oid_to_path $object)" || exit 1
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done <objects &&
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keep="$(basename "$(ls $packdir/pack-*.pack)")" &&
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cruft="$(echo $keep | git pack-objects --cruft \
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--cruft-expiration=750.seconds.ago \
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$packdir/pack)" &&
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test-tool pack-mtimes "pack-$cruft.mtimes" >actual &&
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test_must_be_empty actual
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)
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'
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test_expect_success 'loose objects mtimes upsert others' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit reachable &&
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git repack -Ad &&
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git branch -M main &&
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git checkout --orphan other &&
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test_commit cruft &&
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# incremental repack, leaving existing objects loose (so
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# they can be "freshened")
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git repack &&
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tip="$(git rev-parse cruft)" &&
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path="$objdir/$(test_oid_to_path "$tip")" &&
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test-tool chmtime --get +1000 "$path" >expect &&
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git checkout main &&
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git branch -D other &&
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git tag -d cruft &&
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git reflog expire --all --expire=all &&
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git repack --cruft -d &&
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mtimes="$(basename $(ls $packdir/pack-*.mtimes))" &&
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test-tool pack-mtimes "$mtimes" >actual.raw &&
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grep "$tip" actual.raw | cut -d" " -f2 >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success 'expiring cruft objects with git gc' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit reachable &&
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git branch -M main &&
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git checkout --orphan other &&
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test_commit unreachable &&
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git checkout main &&
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git branch -D other &&
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git tag -d unreachable &&
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# objects are not cruft if they are contained in the reflogs
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git reflog expire --all --expire=all &&
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git rev-list --objects --all --no-object-names >reachable.raw &&
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git cat-file --batch-all-objects --batch-check="%(objectname)" >objects &&
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sort <reachable.raw >reachable &&
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comm -13 reachable objects >unreachable &&
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# Write a cruft pack containing all unreachable objects.
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git gc --cruft --prune="01-01-1980" &&
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mtimes=$(ls .git/objects/pack/pack-*.mtimes) &&
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test_path_is_file $mtimes &&
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# Prune all unreachable objects from the cruft pack.
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git gc --cruft --prune=now &&
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git cat-file --batch-all-objects --batch-check="%(objectname)" >objects &&
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comm -23 unreachable objects >removed &&
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test_cmp unreachable removed &&
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test_path_is_missing $mtimes
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)
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'
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test_expect_success 'cruft --local drops unreachable objects' '
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git init alternate &&
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git init repo &&
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test_when_finished "rm -fr alternate repo" &&
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test_commit -C alternate base &&
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# Pack all objects in alternate so that the cruft repack in "repo" sees
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# the object it dropped due to `--local` as packed. Otherwise this
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# object would not appear packed anywhere (since it is not packed in
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# alternate and likewise not part of the cruft pack in the other repo
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# because of `--local`).
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git -C alternate repack -ad &&
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(
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cd repo &&
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object="$(git -C ../alternate rev-parse HEAD:base.t)" &&
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git -C ../alternate cat-file -p $object >contents &&
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# Write some reachable objects and two unreachable ones: one
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# that the alternate has and another that is unique.
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test_commit other &&
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git hash-object -w -t blob contents &&
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cruft="$(echo cruft | git hash-object -w -t blob --stdin)" &&
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( cd ../alternate/.git/objects && pwd ) \
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>.git/objects/info/alternates &&
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test_path_is_file $objdir/$(test_oid_to_path $cruft) &&
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test_path_is_file $objdir/$(test_oid_to_path $object) &&
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git repack -d --cruft --local &&
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test-tool pack-mtimes "$(basename $(ls $packdir/pack-*.mtimes))" \
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>objects &&
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! grep $object objects &&
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grep $cruft objects
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)
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'
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test_expect_success 'MIDX bitmaps tolerate reachable cruft objects' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit reachable &&
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test_commit cruft &&
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unreachable="$(git rev-parse cruft)" &&
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git reset --hard $unreachable^ &&
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git tag -d cruft &&
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git reflog expire --all --expire=all &&
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git repack --cruft -d &&
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# resurrect the unreachable object via a new commit. the
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# new commit will get selected for a bitmap, but be
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# missing one of its parents from the selected packs.
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git reset --hard $unreachable &&
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test_commit resurrect &&
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git repack --write-midx --write-bitmap-index --geometric=2 -d
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)
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'
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test_expect_success 'cruft objects are freshend via loose' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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echo "cruft" >contents &&
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blob="$(git hash-object -w -t blob contents)" &&
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loose="$objdir/$(test_oid_to_path $blob)" &&
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test_commit base &&
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git repack --cruft -d &&
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test_path_is_missing "$loose" &&
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test-tool pack-mtimes "$(basename "$(ls $packdir/pack-*.mtimes)")" >cruft &&
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grep "$blob" cruft &&
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# write the same object again
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git hash-object -w -t blob contents &&
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test_path_is_file "$loose"
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)
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'
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test_expect_success 'gc.recentObjectsHook' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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# Create a handful of objects.
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|
#
|
|
# - one reachable commit, "base", designated for the reachable
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|
# pack
|
|
# - one unreachable commit, "cruft.discard", which is marked
|
|
# for deletion
|
|
# - one unreachable commit, "cruft.old", which would be marked
|
|
# for deletion, but is rescued as an extra cruft tip
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|
# - one unreachable commit, "cruft.new", which is not marked
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|
# for deletion
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|
test_commit base &&
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|
git branch -M main &&
|
|
|
|
git checkout --orphan discard &&
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|
git rm -fr . &&
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|
test_commit --no-tag cruft.discard &&
|
|
|
|
git checkout --orphan old &&
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|
git rm -fr . &&
|
|
test_commit --no-tag cruft.old &&
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|
cruft_old="$(git rev-parse HEAD)" &&
|
|
|
|
git checkout --orphan new &&
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|
git rm -fr . &&
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|
test_commit --no-tag cruft.new &&
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|
cruft_new="$(git rev-parse HEAD)" &&
|
|
|
|
git checkout main &&
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|
git branch -D discard old new &&
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|
git reflog expire --all --expire=all &&
|
|
|
|
# mark cruft.old with an mtime that is many minutes
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|
# older than the expiration period, and mark cruft.new
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|
# with an mtime that is in the future (and thus not
|
|
# eligible for pruning).
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|
test-tool chmtime -2000 "$objdir/$(test_oid_to_path $cruft_old)" &&
|
|
test-tool chmtime +1000 "$objdir/$(test_oid_to_path $cruft_new)" &&
|
|
|
|
# Write the list of cruft objects we expect to
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|
# accumulate, which is comprised of everything reachable
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|
# from cruft.old and cruft.new, but not cruft.discard.
|
|
git rev-list --objects --no-object-names \
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|
$cruft_old $cruft_new >cruft.raw &&
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|
sort cruft.raw >cruft.expect &&
|
|
|
|
# Write the script to list extra tips, which are limited
|
|
# to cruft.old, in this case.
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|
write_script extra-tips <<-EOF &&
|
|
echo $cruft_old
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|
EOF
|
|
git config gc.recentObjectsHook ./extra-tips &&
|
|
|
|
git repack --cruft --cruft-expiration=now -d &&
|
|
|
|
mtimes="$(ls .git/objects/pack/pack-*.mtimes)" &&
|
|
git show-index <${mtimes%.mtimes}.idx >cruft &&
|
|
cut -d" " -f2 cruft | sort >cruft.actual &&
|
|
test_cmp cruft.expect cruft.actual &&
|
|
|
|
# Ensure that the "old" objects are removed after
|
|
# dropping the gc.recentObjectsHook hook.
|
|
git config --unset gc.recentObjectsHook &&
|
|
git repack --cruft --cruft-expiration=now -d &&
|
|
|
|
mtimes="$(ls .git/objects/pack/pack-*.mtimes)" &&
|
|
git show-index <${mtimes%.mtimes}.idx >cruft &&
|
|
cut -d" " -f2 cruft | sort >cruft.actual &&
|
|
|
|
git rev-list --objects --no-object-names $cruft_new >cruft.raw &&
|
|
cp cruft.expect cruft.old &&
|
|
sort cruft.raw >cruft.expect &&
|
|
test_cmp cruft.expect cruft.actual &&
|
|
|
|
# ensure objects which are no longer in the cruft pack were
|
|
# removed from the repository
|
|
for object in $(comm -13 cruft.expect cruft.old)
|
|
do
|
|
test_must_fail git cat-file -t $object || return 1
|
|
done
|
|
)
|
|
'
|
|
|
|
test_expect_success 'multi-valued gc.recentObjectsHook' '
|
|
git init repo &&
|
|
test_when_finished "rm -fr repo" &&
|
|
(
|
|
cd repo &&
|
|
|
|
test_commit base &&
|
|
git branch -M main &&
|
|
|
|
git checkout --orphan cruft.a &&
|
|
git rm -fr . &&
|
|
test_commit --no-tag cruft.a &&
|
|
cruft_a="$(git rev-parse HEAD)" &&
|
|
|
|
git checkout --orphan cruft.b &&
|
|
git rm -fr . &&
|
|
test_commit --no-tag cruft.b &&
|
|
cruft_b="$(git rev-parse HEAD)" &&
|
|
|
|
git checkout main &&
|
|
git branch -D cruft.a cruft.b &&
|
|
git reflog expire --all --expire=all &&
|
|
|
|
echo "echo $cruft_a" | write_script extra-tips.a &&
|
|
echo "echo $cruft_b" | write_script extra-tips.b &&
|
|
echo "false" | write_script extra-tips.c &&
|
|
|
|
git rev-list --objects --no-object-names $cruft_a $cruft_b \
|
|
>cruft.raw &&
|
|
sort cruft.raw >cruft.expect &&
|
|
|
|
# ensure that each extra cruft tip is saved by its
|
|
# respective hook
|
|
git config --add gc.recentObjectsHook ./extra-tips.a &&
|
|
git config --add gc.recentObjectsHook ./extra-tips.b &&
|
|
git repack --cruft --cruft-expiration=now -d &&
|
|
|
|
mtimes="$(ls .git/objects/pack/pack-*.mtimes)" &&
|
|
git show-index <${mtimes%.mtimes}.idx >cruft &&
|
|
cut -d" " -f2 cruft | sort >cruft.actual &&
|
|
test_cmp cruft.expect cruft.actual &&
|
|
|
|
# ensure that a dirty exit halts cruft pack generation
|
|
git config --add gc.recentObjectsHook ./extra-tips.c &&
|
|
test_must_fail git repack --cruft --cruft-expiration=now -d 2>err &&
|
|
grep "unable to enumerate additional recent objects" err &&
|
|
|
|
# and that the existing cruft pack is left alone
|
|
test_path_is_file "$mtimes"
|
|
)
|
|
'
|
|
|
|
test_expect_success 'additional cruft blobs via gc.recentObjectsHook' '
|
|
git init repo &&
|
|
test_when_finished "rm -fr repo" &&
|
|
(
|
|
cd repo &&
|
|
|
|
test_commit base &&
|
|
|
|
blob=$(echo "unreachable" | git hash-object -w --stdin) &&
|
|
|
|
# mark the unreachable blob we wrote above as having
|
|
# aged out of the retention period
|
|
test-tool chmtime -2000 "$objdir/$(test_oid_to_path $blob)" &&
|
|
|
|
# Write the script to list extra tips, which is just the
|
|
# extra blob as above.
|
|
write_script extra-tips <<-EOF &&
|
|
echo $blob
|
|
EOF
|
|
git config gc.recentObjectsHook ./extra-tips &&
|
|
|
|
git repack --cruft --cruft-expiration=now -d &&
|
|
|
|
mtimes="$(ls .git/objects/pack/pack-*.mtimes)" &&
|
|
git show-index <${mtimes%.mtimes}.idx >cruft &&
|
|
cut -d" " -f2 cruft >actual &&
|
|
echo $blob >expect &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
test_expect_success 'split cruft packs with --max-cruft-size' '
|
|
repo=cruft-with--max-cruft-size &&
|
|
test_when_finished "rm -fr $repo" &&
|
|
|
|
git init "$repo" &&
|
|
|
|
(
|
|
cd "$repo" &&
|
|
|
|
git config core.compression 0 &&
|
|
|
|
sz=$((1024 * 1024)) && # 1MiB
|
|
test-tool genrandom foo $sz >foo &&
|
|
test-tool genrandom bar $sz >bar &&
|
|
foo="$(git hash-object -w -t blob foo)" &&
|
|
bar="$(git hash-object -w -t blob bar)" &&
|
|
|
|
to=$packdir/pack &&
|
|
# Pack together foo and bar into a single 2MiB pack.
|
|
pack="$(git pack-objects $to <<-EOF
|
|
$foo
|
|
$bar
|
|
EOF
|
|
)" &&
|
|
|
|
# Then generate a cruft pack containing foo and bar.
|
|
#
|
|
# Generate the pack with --max-pack-size equal to the
|
|
# size of one object, forcing us to write two cruft
|
|
# packs.
|
|
git pack-objects --cruft --max-pack-size=$sz $to <<-EOF &&
|
|
-pack-$pack.pack
|
|
EOF
|
|
|
|
ls $packdir/pack-*.mtimes >crufts &&
|
|
test_line_count = 2 crufts &&
|
|
|
|
for cruft in $(cat crufts)
|
|
do
|
|
test-tool pack-mtimes "$(basename "$cruft")" || return 1
|
|
done >actual.raw &&
|
|
|
|
cut -d" " -f1 <actual.raw | sort >actual &&
|
|
sort >expect <<-EOF &&
|
|
$foo
|
|
$bar
|
|
EOF
|
|
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
test_done
|