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cea69151a4
Commit f08cbf60fe (index-pack: make quantum of work smaller, 2020-09-08)
refactored the main loop in threaded_second_pass(), but also deleted the
call to display_progress() at the top of the loop. This means that users
typically see no progress at all during the delta resolution phase (and
for large repositories, Git appears to hang).
This looks like an accident that was unrelated to the intended change of
that commit, since we continue to update nr_resolved_deltas in
resolve_delta(). Let's restore the call to get that progress back.
We'll also add a test that confirms we generate the expected progress.
This isn't perfect, as it wouldn't catch a bug where progress was
delayed to the end. That was probably possible to trigger when receiving
a thin pack, because we'd eventually call display_progress() from
fix_unresolved_deltas(), but only once after doing all the work.
However, since our test case generates a complete pack, it reliably
demonstrates this particular bug and its fix. And we can't do better
without making the test racy.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
287 lines
9.3 KiB
Bash
Executable file
287 lines
9.3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2007 Nicolas Pitre
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#
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test_description='pack index with 64-bit offsets and object CRC'
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. ./test-lib.sh
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test_expect_success 'setup' '
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rawsz=$(test_oid rawsz) &&
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rm -rf .git &&
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git init &&
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git config pack.threads 1 &&
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i=1 &&
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while test $i -le 100
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do
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iii=$(printf "%03i" $i)
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test-tool genrandom "bar" 200 > wide_delta_$iii &&
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test-tool genrandom "baz $iii" 50 >> wide_delta_$iii &&
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test-tool genrandom "foo"$i 100 > deep_delta_$iii &&
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test-tool genrandom "foo"$(expr $i + 1) 100 >> deep_delta_$iii &&
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test-tool genrandom "foo"$(expr $i + 2) 100 >> deep_delta_$iii &&
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echo $iii >file_$iii &&
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test-tool genrandom "$iii" 8192 >>file_$iii &&
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git update-index --add file_$iii deep_delta_$iii wide_delta_$iii &&
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i=$(expr $i + 1) || return 1
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done &&
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{ echo 101 && test-tool genrandom 100 8192; } >file_101 &&
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git update-index --add file_101 &&
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tree=$(git write-tree) &&
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commit=$(git commit-tree $tree </dev/null) && {
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echo $tree &&
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git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
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} >obj-list &&
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git update-ref HEAD $commit
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'
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test_expect_success 'pack-objects with index version 1' '
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pack1=$(git pack-objects --index-version=1 test-1 <obj-list) &&
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git verify-pack -v "test-1-${pack1}.pack"
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'
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test_expect_success 'pack-objects with index version 2' '
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pack2=$(git pack-objects --index-version=2 test-2 <obj-list) &&
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git verify-pack -v "test-2-${pack2}.pack"
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'
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test_expect_success 'both packs should be identical' '
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cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"
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'
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test_expect_success 'index v1 and index v2 should be different' '
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! cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"
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'
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test_expect_success 'index-pack with index version 1' '
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git index-pack --index-version=1 -o 1.idx "test-1-${pack1}.pack"
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'
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test_expect_success 'index-pack with index version 2' '
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git index-pack --index-version=2 -o 2.idx "test-1-${pack1}.pack"
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'
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test_expect_success 'index-pack results should match pack-objects ones' '
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cmp "test-1-${pack1}.idx" "1.idx" &&
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cmp "test-2-${pack2}.idx" "2.idx"
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'
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test_expect_success 'index-pack --verify on index version 1' '
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git index-pack --verify "test-1-${pack1}.pack"
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'
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test_expect_success 'index-pack --verify on index version 2' '
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git index-pack --verify "test-2-${pack2}.pack"
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'
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test_expect_success 'pack-objects --index-version=2, is not accepted' '
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test_must_fail git pack-objects --index-version=2, test-3 <obj-list
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'
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test_expect_success 'index v2: force some 64-bit offsets with pack-objects' '
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pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)
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'
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if msg=$(git verify-pack -v "test-3-${pack3}.pack" 2>&1) ||
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! (echo "$msg" | grep "pack too large .* off_t")
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then
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test_set_prereq OFF64_T
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else
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say "# skipping tests concerning 64-bit offsets"
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fi
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test_expect_success OFF64_T 'index v2: verify a pack with some 64-bit offsets' '
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git verify-pack -v "test-3-${pack3}.pack"
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'
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test_expect_success OFF64_T '64-bit offsets: should be different from previous index v2 results' '
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! cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"
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'
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test_expect_success OFF64_T 'index v2: force some 64-bit offsets with index-pack' '
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git index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"
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'
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test_expect_success OFF64_T '64-bit offsets: index-pack result should match pack-objects one' '
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cmp "test-3-${pack3}.idx" "3.idx"
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'
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test_expect_success OFF64_T 'index-pack --verify on 64-bit offset v2 (cheat)' '
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# This cheats by knowing which lower offset should still be encoded
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# in 64-bit representation.
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git index-pack --verify --index-version=2,0x40000 "test-3-${pack3}.pack"
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'
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test_expect_success OFF64_T 'index-pack --verify on 64-bit offset v2' '
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git index-pack --verify "test-3-${pack3}.pack"
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'
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# returns the object number for given object in given pack index
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index_obj_nr()
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{
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idx_file=$1
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object_sha1=$2
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nr=0
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git show-index < $idx_file |
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while read offs sha1 extra
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do
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nr=$(($nr + 1))
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test "$sha1" = "$object_sha1" || continue
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echo "$(($nr - 1))"
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break
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done
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}
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# returns the pack offset for given object as found in given pack index
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index_obj_offset()
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{
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idx_file=$1
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object_sha1=$2
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git show-index < $idx_file | grep $object_sha1 |
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( read offs extra && echo "$offs" )
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}
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test_expect_success '[index v1] 1) stream pack to repository' '
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git index-pack --index-version=1 --stdin < "test-1-${pack1}.pack" &&
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git prune-packed &&
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git count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
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cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
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cmp "test-1-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"
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'
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test_expect_success \
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'[index v1] 2) create a stealth corruption in a delta base reference' '
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# This test assumes file_101 is a delta smaller than 16 bytes.
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# It should be against file_100 but we substitute its base for file_099
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sha1_101=$(git hash-object file_101) &&
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sha1_099=$(git hash-object file_099) &&
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offs_101=$(index_obj_offset 1.idx $sha1_101) &&
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nr_099=$(index_obj_nr 1.idx $sha1_099) &&
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chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
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recordsz=$((rawsz + 4)) &&
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dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($offs_101 + 1)) \
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if=".git/objects/pack/pack-${pack1}.idx" \
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skip=$((4 + 256 * 4 + $nr_099 * recordsz)) \
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bs=1 count=$rawsz conv=notrunc &&
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git cat-file blob $sha1_101 > file_101_foo1
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'
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test_expect_success \
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'[index v1] 3) corrupted delta happily returned wrong data' '
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test -f file_101_foo1 && ! cmp file_101 file_101_foo1
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'
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test_expect_success \
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'[index v1] 4) confirm that the pack is actually corrupted' '
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test_must_fail git fsck --full $commit
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'
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test_expect_success \
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'[index v1] 5) pack-objects happily reuses corrupted data' '
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pack4=$(git pack-objects test-4 <obj-list) &&
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test -f "test-4-${pack4}.pack"
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'
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test_expect_success '[index v1] 6) newly created pack is BAD !' '
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test_must_fail git verify-pack -v "test-4-${pack4}.pack"
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'
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test_expect_success '[index v2] 1) stream pack to repository' '
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rm -f .git/objects/pack/* &&
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git index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" &&
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git prune-packed &&
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git count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
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cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
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cmp "test-2-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"
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'
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test_expect_success \
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'[index v2] 2) create a stealth corruption in a delta base reference' '
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# This test assumes file_101 is a delta smaller than 16 bytes.
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# It should be against file_100 but we substitute its base for file_099
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sha1_101=$(git hash-object file_101) &&
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sha1_099=$(git hash-object file_099) &&
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offs_101=$(index_obj_offset 1.idx $sha1_101) &&
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nr_099=$(index_obj_nr 1.idx $sha1_099) &&
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chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
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dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($offs_101 + 1)) \
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if=".git/objects/pack/pack-${pack1}.idx" \
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skip=$((8 + 256 * 4 + $nr_099 * rawsz)) \
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bs=1 count=$rawsz conv=notrunc &&
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git cat-file blob $sha1_101 > file_101_foo2
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'
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test_expect_success \
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'[index v2] 3) corrupted delta happily returned wrong data' '
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test -f file_101_foo2 && ! cmp file_101 file_101_foo2
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'
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test_expect_success \
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'[index v2] 4) confirm that the pack is actually corrupted' '
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test_must_fail git fsck --full $commit
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'
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test_expect_success \
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'[index v2] 5) pack-objects refuses to reuse corrupted data' '
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test_must_fail git pack-objects test-5 <obj-list &&
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test_must_fail git pack-objects --no-reuse-object test-6 <obj-list
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'
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test_expect_success \
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'[index v2] 6) verify-pack detects CRC mismatch' '
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rm -f .git/objects/pack/* &&
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git index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" &&
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git verify-pack ".git/objects/pack/pack-${pack1}.pack" &&
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obj=$(git hash-object file_001) &&
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nr=$(index_obj_nr ".git/objects/pack/pack-${pack1}.idx" $obj) &&
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chmod +w ".git/objects/pack/pack-${pack1}.idx" &&
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printf xxxx | dd of=".git/objects/pack/pack-${pack1}.idx" conv=notrunc \
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bs=1 count=4 seek=$((8 + 256 * 4 + $(wc -l <obj-list) * rawsz + $nr * 4)) &&
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( while read obj
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do git cat-file -p $obj >/dev/null || exit 1
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done <obj-list ) &&
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test_must_fail git verify-pack ".git/objects/pack/pack-${pack1}.pack"
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'
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test_expect_success 'running index-pack in the object store' '
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rm -f .git/objects/pack/* &&
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cp test-1-${pack1}.pack .git/objects/pack/pack-${pack1}.pack &&
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(
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cd .git/objects/pack &&
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git index-pack pack-${pack1}.pack
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) &&
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test -f .git/objects/pack/pack-${pack1}.idx
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'
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test_expect_success 'index-pack --strict warns upon missing tagger in tag' '
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sha=$(git rev-parse HEAD) &&
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cat >wrong-tag <<EOF &&
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object $sha
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type commit
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tag guten tag
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This is an invalid tag.
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EOF
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tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
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pack1=$(echo $tag $sha | git pack-objects tag-test) &&
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echo remove tag object &&
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thirtyeight=${tag#??} &&
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rm -f .git/objects/${tag%$thirtyeight}/$thirtyeight &&
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git index-pack --strict tag-test-${pack1}.pack 2>err &&
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grep "^warning:.* expected .tagger. line" err
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'
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test_expect_success 'index-pack --fsck-objects also warns upon missing tagger in tag' '
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git index-pack --fsck-objects tag-test-${pack1}.pack 2>err &&
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grep "^warning:.* expected .tagger. line" err
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'
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test_expect_success 'index-pack -v --stdin produces progress for both phases' '
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pack=$(git pack-objects --all pack </dev/null) &&
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GIT_PROGRESS_DELAY=0 git index-pack -v --stdin <pack-$pack.pack 2>err &&
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test_i18ngrep "Receiving objects" err &&
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test_i18ngrep "Resolving deltas" err
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'
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test_done
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