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#! @BASH@
# 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.
# Read in library functions
if [ "$(type -t patch_file_name)" != function ]
then
if ! [ -r $QUILT_DIR/scripts/patchfns ]
then
echo "Cannot read library $QUILT_DIR/scripts/patchfns" >&2
exit 1
fi
. $QUILT_DIR/scripts/patchfns
fi
usage()
{
printf $"Usage: quilt revert [-P patch] {file} ...\n"
if [ x$1 = x-h ]
then
printf $"
Revert the changes to the topmost or named patch for the specified file(s).
Changes to files that are modified by patches on top of the specified patch
cannot be reverted.
-P patch
Revert changes in the named patch.
"
exit 0
else
exit 1
fi
}
options=`getopt -o P:h -- "$@"`
if [ $? -ne 0 ]
then
usage
fi
eval set -- "$options"
while true
do
case "$1" in
-P)
opt_patch="$2"
shift 2 ;;
-h)
usage -h ;;
--)
shift
break ;;
esac
done
if [ $# -lt 1 ]
then
usage
fi
patch=$(find_applied_patch "$opt_patch") || exit 1
status=0
for file in "${@/#/$SUBDIR}"
do
if ! file_in_patch "$file" $patch
then
printf $"File %s is not in patch %s\n" \
"$file" "$(print_patch $patch)" >&2
status=1
continue
fi
next_patch=$(next_patch_for_file $patch "$file")
if [ -n "$next_patch" ]
then
printf $"File %s modified by patch %s\n" \
"$file" "$(print_patch $next_patch)"
status=1
continue
fi
done
[ $status -eq 0 ] || exit $status
workdir=$(gen_tempfile -d $PWD)
trap "rm -rf $workdir" EXIT
apply_patch_temporarily $workdir $patch "${@/#/$SUBDIR}" || exit 1
for file in ${*/#/$SUBDIR}
do
if [ -s "$workdir/$file" ]
then
if [ -e "$file" ] &&
diff -q "$workdir/$file" "$file" > /dev/null
then
printf $"File %s is unchanged\n" "$file"
continue
fi
mkdir -p "$(dirname "$file")"
cp -p "$workdir/$file" "$file"
else
if [ ! -e "$file" ]
then
printf $"File %s is unchanged\n" "$file"
continue
fi
rm -f "$file"
fi
if [ $? -ne 0 ]
then
printf $"Failed to revert changes to %s in patch %s\n" \
"$file" "$(print_patch $patch)" >&2
status=1
else
printf $"Changes to %s in patch %s reverted\n" \
"$file" "$(print_patch $patch)"
fi
done
exit $status
### Local Variables:
### mode: shell-script
### End:
# vim:filetype=sh:w
|
