diff options
Diffstat (limited to 'third_party/git/t/t5303-pack-corruption-resilience.sh')
| -rwxr-xr-x | third_party/git/t/t5303-pack-corruption-resilience.sh | 403 |
1 files changed, 0 insertions, 403 deletions
diff --git a/third_party/git/t/t5303-pack-corruption-resilience.sh b/third_party/git/t/t5303-pack-corruption-resilience.sh deleted file mode 100755 index 41e6dc4dcf..0000000000 --- a/third_party/git/t/t5303-pack-corruption-resilience.sh +++ /dev/null @@ -1,403 +0,0 @@ -#!/bin/sh -# -# Copyright (c) 2008 Nicolas Pitre -# - -test_description='resilience to pack corruptions with redundant objects' -. ./test-lib.sh - -# Note: the test objects are created with knowledge of their pack encoding -# to ensure good code path coverage, and to facilitate direct alteration -# later on. The assumed characteristics are: -# -# 1) blob_2 is a delta with blob_1 for base and blob_3 is a delta with blob2 -# for base, such that blob_3 delta depth is 2; -# -# 2) the bulk of object data is uncompressible so the text part remains -# visible; -# -# 3) object header is always 2 bytes. - -create_test_files() { - test-tool genrandom "foo" 2000 > file_1 && - test-tool genrandom "foo" 1800 > file_2 && - test-tool genrandom "foo" 1800 > file_3 && - echo " base " >> file_1 && - echo " delta1 " >> file_2 && - echo " delta delta2 " >> file_3 && - test-tool genrandom "bar" 150 >> file_2 && - test-tool genrandom "baz" 100 >> file_3 -} - -create_new_pack() { - rm -rf .git && - git init && - blob_1=$(git hash-object -t blob -w file_1) && - blob_2=$(git hash-object -t blob -w file_2) && - blob_3=$(git hash-object -t blob -w file_3) && - pack=$(printf "$blob_1\n$blob_2\n$blob_3\n" | - git pack-objects $@ .git/objects/pack/pack) && - pack=".git/objects/pack/pack-${pack}" && - git verify-pack -v ${pack}.pack -} - -do_repack() { - pack=$(printf "$blob_1\n$blob_2\n$blob_3\n" | - git pack-objects $@ .git/objects/pack/pack) && - pack=".git/objects/pack/pack-${pack}" -} - -do_corrupt_object() { - ofs=$(git show-index < ${pack}.idx | grep $1 | cut -f1 -d" ") && - ofs=$(($ofs + $2)) && - chmod +w ${pack}.pack && - dd of=${pack}.pack bs=1 conv=notrunc seek=$ofs && - test_must_fail git verify-pack ${pack}.pack -} - -printf '\0' > zero - -test_expect_success \ - 'initial setup validation' \ - 'create_test_files && - create_new_pack && - git prune-packed && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'create corruption in header of first object' \ - 'do_corrupt_object $blob_1 0 < zero && - test_must_fail git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... but having a loose copy allows for full recovery' \ - 'mv ${pack}.idx tmp && - git hash-object -t blob -w file_1 && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and loose copy of first delta allows for partial recovery' \ - 'git prune-packed && - test_must_fail git cat-file blob $blob_2 > /dev/null && - mv ${pack}.idx tmp && - git hash-object -t blob -w file_2 && - mv tmp ${pack}.idx && - test_must_fail git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'create corruption in data of first object' \ - 'create_new_pack && - git prune-packed && - chmod +w ${pack}.pack && - perl -i.bak -pe "s/ base /abcdef/" ${pack}.pack && - test_must_fail git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... but having a loose copy allows for full recovery' \ - 'mv ${pack}.idx tmp && - git hash-object -t blob -w file_1 && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and loose copy of second object allows for partial recovery' \ - 'git prune-packed && - test_must_fail git cat-file blob $blob_2 > /dev/null && - mv ${pack}.idx tmp && - git hash-object -t blob -w file_2 && - mv tmp ${pack}.idx && - test_must_fail git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'create corruption in header of first delta' \ - 'create_new_pack && - git prune-packed && - do_corrupt_object $blob_2 0 < zero && - git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... but having a loose copy allows for full recovery' \ - 'mv ${pack}.idx tmp && - git hash-object -t blob -w file_2 && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and then a repack "clears" the corruption' \ - 'do_repack && - git prune-packed && - git verify-pack ${pack}.pack && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'create corruption in data of first delta' \ - 'create_new_pack && - git prune-packed && - chmod +w ${pack}.pack && - perl -i.bak -pe "s/ delta1 /abcdefgh/" ${pack}.pack && - git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... but having a loose copy allows for full recovery' \ - 'mv ${pack}.idx tmp && - git hash-object -t blob -w file_2 && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and then a repack "clears" the corruption' \ - 'do_repack && - git prune-packed && - git verify-pack ${pack}.pack && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'corruption in delta base reference of first delta (OBJ_REF_DELTA)' \ - 'create_new_pack && - git prune-packed && - do_corrupt_object $blob_2 2 < zero && - git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... but having a loose copy allows for full recovery' \ - 'mv ${pack}.idx tmp && - git hash-object -t blob -w file_2 && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and then a repack "clears" the corruption' \ - 'do_repack && - git prune-packed && - git verify-pack ${pack}.pack && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'corruption #0 in delta base reference of first delta (OBJ_OFS_DELTA)' \ - 'create_new_pack --delta-base-offset && - git prune-packed && - do_corrupt_object $blob_2 2 < zero && - git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... but having a loose copy allows for full recovery' \ - 'mv ${pack}.idx tmp && - git hash-object -t blob -w file_2 && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and then a repack "clears" the corruption' \ - 'do_repack --delta-base-offset && - git prune-packed && - git verify-pack ${pack}.pack && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'corruption #1 in delta base reference of first delta (OBJ_OFS_DELTA)' \ - 'create_new_pack --delta-base-offset && - git prune-packed && - printf "\001" | do_corrupt_object $blob_2 2 && - git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... but having a loose copy allows for full recovery' \ - 'mv ${pack}.idx tmp && - git hash-object -t blob -w file_2 && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and then a repack "clears" the corruption' \ - 'do_repack --delta-base-offset && - git prune-packed && - git verify-pack ${pack}.pack && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and a redundant pack allows for full recovery too' \ - 'do_corrupt_object $blob_2 2 < zero && - git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null && - mv ${pack}.idx tmp && - git hash-object -t blob -w file_1 && - git hash-object -t blob -w file_2 && - printf "$blob_1\n$blob_2\n" | git pack-objects .git/objects/pack/pack && - git prune-packed && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'corruption of delta base reference pointing to wrong object' \ - 'create_new_pack --delta-base-offset && - git prune-packed && - printf "\220\033" | do_corrupt_object $blob_3 2 && - git cat-file blob $blob_1 >/dev/null && - git cat-file blob $blob_2 >/dev/null && - test_must_fail git cat-file blob $blob_3 >/dev/null' - -test_expect_success \ - '... but having a loose copy allows for full recovery' \ - 'mv ${pack}.idx tmp && - git hash-object -t blob -w file_3 && - mv tmp ${pack}.idx && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - '... and then a repack "clears" the corruption' \ - 'do_repack --delta-base-offset --no-reuse-delta && - git prune-packed && - git verify-pack ${pack}.pack && - git cat-file blob $blob_1 > /dev/null && - git cat-file blob $blob_2 > /dev/null && - git cat-file blob $blob_3 > /dev/null' - -test_expect_success \ - 'corrupting header to have too small output buffer fails unpack' \ - 'create_new_pack && - git prune-packed && - printf "\262\001" | do_corrupt_object $blob_1 0 && - test_must_fail git cat-file blob $blob_1 > /dev/null && - test_must_fail git cat-file blob $blob_2 > /dev/null && - test_must_fail git cat-file blob $blob_3 > /dev/null' - -# \0 - empty base -# \1 - one byte in result -# \1 - one literal byte (X) -test_expect_success \ - 'apply good minimal delta' \ - 'printf "\0\1\1X" > minimal_delta && - test-tool delta -p /dev/null minimal_delta /dev/null' - -# \0 - empty base -# \1 - 1 byte in result -# \2 - two literal bytes (one too many) -test_expect_success \ - 'apply delta with too many literal bytes' \ - 'printf "\0\1\2XX" > too_big_literal && - test_must_fail test-tool delta -p /dev/null too_big_literal /dev/null' - -# \4 - four bytes in base -# \1 - one byte in result -# \221 - copy, one byte offset, one byte size -# \0 - copy from offset 0 -# \2 - copy two bytes (one too many) -test_expect_success \ - 'apply delta with too many copied bytes' \ - 'printf "\4\1\221\0\2" > too_big_copy && - printf base >base && - test_must_fail test-tool delta -p base too_big_copy /dev/null' - -# \0 - empty base -# \2 - two bytes in result -# \2 - two literal bytes (we are short one) -test_expect_success \ - 'apply delta with too few literal bytes' \ - 'printf "\0\2\2X" > truncated_delta && - test_must_fail test-tool delta -p /dev/null truncated_delta /dev/null' - -# \0 - empty base -# \1 - one byte in result -# \221 - copy, one byte offset, one byte size -# \0 - copy from offset 0 -# \1 - copy one byte (we are short one) -test_expect_success \ - 'apply delta with too few bytes in base' \ - 'printf "\0\1\221\0\1" > truncated_base && - test_must_fail test-tool delta -p /dev/null truncated_base /dev/null' - -# \4 - four bytes in base -# \2 - two bytes in result -# \1 - one literal byte (X) -# \221 - copy, one byte offset, one byte size -# (offset/size missing) -# -# Note that the literal byte is necessary to get past the uninteresting minimum -# delta size check. -test_expect_success \ - 'apply delta with truncated copy parameters' \ - 'printf "\4\2\1X\221" > truncated_copy_delta && - printf base >base && - test_must_fail test-tool delta -p base truncated_copy_delta /dev/null' - -# \0 - empty base -# \1 - one byte in result -# \1 - one literal byte (X) -# \1 - trailing garbage command -test_expect_success \ - 'apply delta with trailing garbage literal' \ - 'printf "\0\1\1X\1" > tail_garbage_literal && - test_must_fail test-tool delta -p /dev/null tail_garbage_literal /dev/null' - -# \4 - four bytes in base -# \1 - one byte in result -# \1 - one literal byte (X) -# \221 - copy, one byte offset, one byte size -# \0 - copy from offset 0 -# \1 - copy 1 byte -test_expect_success \ - 'apply delta with trailing garbage copy' \ - 'printf "\4\1\1X\221\0\1" > tail_garbage_copy && - printf base >base && - test_must_fail test-tool delta -p /dev/null tail_garbage_copy /dev/null' - -# \0 - empty base -# \1 - one byte in result -# \1 - one literal byte (X) -# \0 - bogus opcode -test_expect_success \ - 'apply delta with trailing garbage opcode' \ - 'printf "\0\1\1X\0" > tail_garbage_opcode && - test_must_fail test-tool delta -p /dev/null tail_garbage_opcode /dev/null' - -test_done |