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Diffstat (limited to 'third_party/git/t/lib-pack.sh')
| -rw-r--r-- | third_party/git/t/lib-pack.sh | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/third_party/git/t/lib-pack.sh b/third_party/git/t/lib-pack.sh deleted file mode 100644 index c4d907a450..0000000000 --- a/third_party/git/t/lib-pack.sh +++ /dev/null @@ -1,110 +0,0 @@ -# Support routines for hand-crafting weird or malicious packs. -# -# You can make a complete pack like: -# -# pack_header 2 >foo.pack && -# pack_obj e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 >>foo.pack && -# pack_obj e68fe8129b546b101aee9510c5328e7f21ca1d18 >>foo.pack && -# pack_trailer foo.pack - -# Print the big-endian 4-byte octal representation of $1 -uint32_octal () { - n=$1 - printf '\\%o' $(($n / 16777216)); n=$((n % 16777216)) - printf '\\%o' $(($n / 65536)); n=$((n % 65536)) - printf '\\%o' $(($n / 256)); n=$((n % 256)) - printf '\\%o' $(($n )); -} - -# Print the big-endian 4-byte binary representation of $1 -uint32_binary () { - printf "$(uint32_octal "$1")" -} - -# Print a pack header, version 2, for a pack with $1 objects -pack_header () { - printf 'PACK' && - printf '\0\0\0\2' && - uint32_binary "$1" -} - -# Print the pack data for object $1, as a delta against object $2 (or as a full -# object if $2 is missing or empty). The output is suitable for including -# directly in the packfile, and represents the entirety of the object entry. -# Doing this on the fly (especially picking your deltas) is quite tricky, so we -# have hardcoded some well-known objects. See the case statements below for the -# complete list. -pack_obj () { - case "$1" in - # empty blob - e69de29bb2d1d6434b8b29ae775ad8c2e48c5391) - case "$2" in - '') - printf '\060\170\234\003\0\0\0\0\1' - return - ;; - esac - ;; - - # blob containing "\7\76" - e68fe8129b546b101aee9510c5328e7f21ca1d18) - case "$2" in - '') - printf '\062\170\234\143\267\3\0\0\116\0\106' - return - ;; - 01d7713666f4de822776c7622c10f1b07de280dc) - printf '\165\1\327\161\66\146\364\336\202\47\166' && - printf '\307\142\54\20\361\260\175\342\200\334\170' && - printf '\234\143\142\142\142\267\003\0\0\151\0\114' - return - ;; - esac - ;; - - # blob containing "\7\0" - 01d7713666f4de822776c7622c10f1b07de280dc) - case "$2" in - '') - printf '\062\170\234\143\147\0\0\0\20\0\10' - return - ;; - e68fe8129b546b101aee9510c5328e7f21ca1d18) - printf '\165\346\217\350\22\233\124\153\20\32\356' && - printf '\225\20\305\62\216\177\41\312\35\30\170\234' && - printf '\143\142\142\142\147\0\0\0\53\0\16' - return - ;; - esac - ;; - esac - - # If it's not a delta, we can convince pack-objects to generate a pack - # with just our entry, and then strip off the header (12 bytes) and - # trailer (20 bytes). - if test -z "$2" - then - echo "$1" | git pack-objects --stdout >pack_obj.tmp && - size=$(wc -c <pack_obj.tmp) && - dd if=pack_obj.tmp bs=1 count=$((size - 20 - 12)) skip=12 && - rm -f pack_obj.tmp - return - fi - - echo >&2 "BUG: don't know how to print $1${2:+ (from $2)}" - return 1 -} - -# Compute and append pack trailer to "$1" -pack_trailer () { - test-tool sha1 -b <"$1" >trailer.tmp && - cat trailer.tmp >>"$1" && - rm -f trailer.tmp -} - -# Remove any existing packs to make sure that -# whatever we index next will be the pack that we -# actually use. -clear_packs () { - rm -f .git/objects/pack/* -} |