mirror of
https://github.com/git/git.git
synced 2024-11-08 10:13:18 +01:00
fbc812a600
The printf utility provided by coreutils when interpreting '\%o' format does not recognize %o as formatting directive. For example printf '\%o 0 returns \%o and warning: ignoring excess arguments, starting with ‘0’, which results in failed tests in t5309-pack-delta-cycles.sh. In most shells the test ends with success as the printf is a builtin utility. Fix it by using '\\%o' which is interpreted consistently in all versions of printf. Signed-off-by: Kacper Kornet <draenog@pld-linux.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
100 lines
2.5 KiB
Bash
100 lines
2.5 KiB
Bash
#!/bin/sh
|
|
#
|
|
# 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
|
|
|
|
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-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/*
|
|
}
|