92 lines
1.9 KiB
Bash
92 lines
1.9 KiB
Bash
|
#!/bin/sh
|
||
|
|
#
|
||
|
|
# cowpatch.sh, by Rich Felker
|
||
|
|
#
|
||
|
|
# Permission to use, copy, modify, and/or distribute this software for
|
||
|
|
# any purpose with or without fee is hereby granted.
|
||
|
|
#
|
||
|
|
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
|
||
|
|
# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
|
||
|
|
# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
|
||
|
|
# AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
||
|
|
# DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
|
||
|
|
# OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||
|
|
# TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
||
|
|
# PERFORMANCE OF THIS SOFTWARE.
|
||
|
|
#
|
||
|
|
# Take the above disclaimer seriously! This is an experimental tool
|
||
|
|
# still and does not yet take precautions against malformed/malicious
|
||
|
|
# patch files like patch(1) does. It may act out-of-tree and clobber
|
||
|
|
# stuff you didn't intend for it to clobber.
|
||
|
|
#
|
||
|
|
|
||
|
|
set -e
|
||
|
|
|
||
|
|
echo () { printf "%s\n" "$*" ; }
|
||
|
|
|
||
|
|
cow () {
|
||
|
|
test -h "$1" || return 0
|
||
|
|
if test -d "$1" ; then
|
||
|
|
case "$1" in
|
||
|
|
*/*) set -- "${1%/*}/" "${1##*/}" ;;
|
||
|
|
*) set -- "" "$1" ;;
|
||
|
|
esac
|
||
|
|
mkdir "$1$2.tmp.$$"
|
||
|
|
mv "$1$2" "$1.$2.orig"
|
||
|
|
mv "$1$2.tmp.$$" "$1$2"
|
||
|
|
( cd "$1$2" && ln -s ../".$2.orig"/* . )
|
||
|
|
else
|
||
|
|
cp "$1" "$1.tmp.$$"
|
||
|
|
mv "$1.tmp.$$" "$1"
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
cowp () {
|
||
|
|
while test "$1" ; do
|
||
|
|
case "$1" in
|
||
|
|
*/*) set -- "${1#*/}" "$2${2:+/}${1%%/*}" ;;
|
||
|
|
*) set -- "" "$2${2:+/}$1" ;;
|
||
|
|
esac
|
||
|
|
cow "$2"
|
||
|
|
done
|
||
|
|
}
|
||
|
|
|
||
|
|
cowpatch () {
|
||
|
|
|
||
|
|
plev=0
|
||
|
|
while getopts ":p:i:RNE" opt ; do
|
||
|
|
test "$opt" = p && plev="$OPTARG"
|
||
|
|
done
|
||
|
|
|
||
|
|
while IFS= read -r l ; do
|
||
|
|
case "$l" in
|
||
|
|
+++*)
|
||
|
|
IFS=" " read -r junk pfile junk <<EOF
|
||
|
|
$l
|
||
|
|
EOF
|
||
|
|
i=0; while test "$i" -lt "$plev" ; do pfile=${pfile#*/}; i=$((i+1)) ; done
|
||
|
|
cowp "$pfile"
|
||
|
|
echo "$l"
|
||
|
|
;;
|
||
|
|
@@*)
|
||
|
|
echo "$l"
|
||
|
|
IFS=" ," read -r junk junk i junk j junk <<EOF
|
||
|
|
$l
|
||
|
|
EOF
|
||
|
|
while test $i -gt 0 || test $j -gt 0 ; do
|
||
|
|
IFS= read -r l
|
||
|
|
echo "$l"
|
||
|
|
case "$l" in
|
||
|
|
+*) j=$((j-1)) ;;
|
||
|
|
-*) i=$((i-1)) ;;
|
||
|
|
*) i=$((i-1)) ; j=$((j-1)) ;;
|
||
|
|
esac
|
||
|
|
done ;;
|
||
|
|
*) echo "$l" ;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
cowpatch "$@" | patch "$@"
|