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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 @SCRIPTS@/patchfns ]
then
echo "Cannot read library @SCRIPTS@/patchfns" >&2
exit 1
fi
. @SCRIPTS@/patchfns
fi
usage()
{
printf $"Usage: quilt fork [new_name]\n"
if [ x$1 = x-h ]
then
printf $"
Fork the topmost patch. Forking a patch means creating a verbatim copy
of it under a new name, and use that new name instead of the original
one in the current series. This is useful when a patch has to be
modified, but the original version of it should be preserved, e.g.
because it is used in another series, or for the history. A typical
sequence of commands would be: fork, edit, refresh.
If new_name is missing, the name of the forked patch will be the current
patch name, followed by \"-2\". If the patch name already ends in a
dash-and-number, the number is further incremented (e.g., patch.diff,
patch-2.diff, patch-3.diff).
"
exit 0
else
exit 1
fi
}
options=`getopt -o h -- "$@"`
if [ $? -ne 0 ]
then
usage
fi
eval set -- "$options"
while true
do
case "$1" in
-h)
usage -h ;;
--)
shift
break ;;
esac
done
if [ $# -gt 1 ]
then
usage
fi
top_patch=$(top_patch)
if [ -z "$top_patch" ]
then
printf $"No patches applied\n" >&2
exit 1
fi
if [ $# -eq 1 ]
then
new_patch="$1"
else
base=$(echo "$top_patch" \
| @SED@ -e 's:\(\|\.diff\?\|\.patch\)\(\|\.gz\|\.bz2\)$::')
num=$(echo "$base" \
| @SED@ -ne 's:.*\(-[0-9]\+\)$:\1:'p)
if [ -n "$num" ]
then
new_patch="${base:0:${#base}-${#num}}-$((${num:1}+1))"
else
new_patch="$base-2"
fi
new_patch="$new_patch${top_patch:${#base}}"
fi
new_patch=${new_patch#$QUILT_PATCHES/}
if patch_in_series $new_patch || \
[ -d "$QUILT_PC/$new_patch" ] || \
[ -e "$(patch_file_name $new_patch)" ]
then
printf $"Patch %s exists already, please choose a new name\n" \
"$(print_patch $new_patch)" >&2
exit 1
fi
if ! rename_in_db "$top_patch" "$new_patch" || \
! rename_in_series "$top_patch" "$new_patch" || \
! mv "$QUILT_PC/$top_patch" "$QUILT_PC/$new_patch" || \
( [ -e "$(patch_file_name $top_patch)" ] && \
! cp -p "$(patch_file_name $top_patch)" \
"$(patch_file_name $new_patch)" )
then
printf $"Fork of patch %s to patch %s failed\n" \
"$(print_patch $top_patch)" \
"$(print_patch $new_patch)" >&2
exit 1
fi
printf $"Fork of patch %s created as %s\n" \
"$(print_patch $top_patch)" \
"$(print_patch $new_patch)"
### Local Variables:
### mode: shell-script
### End:
# vim:filetype=sh
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