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|
#! /bin/bash
# Extract names of new files from a patch, print them out
# This script is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# See the COPYING and AUTHORS files for more details.
usage()
{
echo "Usage: touched-by-patch [-p num] patchname"
exit 1
}
options=`getopt -o p:h -- "$@"`
if [ $? -ne 0 ]
then
usage
fi
eval set -- "$options"
while true
do
case "$1" in
-p)
opt_p=$2
shift 2 ;;
-h)
usage ;;
--)
shift
break ;;
esac
done
if [ $# -ne 1 ]
then
usage
fi
patch_file=$1
[ -z "$opt_p" ] && opt_p=1
case "$patch_file" in
*.bz2)
command="bzip2 -cd $patch_file";;
*.gz)
command="gzip -cd $patch_file";;
*)
command="cat $patch_file";;
esac
# Neither `+++' nor `---' works for all patches; patch looks at the
# file system to determine which file name to use.
eval $command \
| awk '/^\+\+\+[ \t]/ {
sub(/^\+\+\+[ \t]/, "")
sub(/[ \t].*/, "")
sub(/^\/dev\/null/, "")
for (i=0; i<'$opt_p'; i++)
sub(/^[^\/]*\//, "")
print
}' \
| sort \
| uniq
|
