#! /bin/sh
# GNU Mailutils -- a suite of utilities for electronic mail
# Copyright (C) 2002, 2007 Free Software Foundation, Inc.
#
# GNU Mailutils is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Mailutils is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Mailutils; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA

REGEXP=""

case "$1" in
    "-r")      shift
	       rm -rf $*
	       exit 0;;
    "-subst")  REGEXP="$2"
    	       shift 2;;
esac

mkdirhier() {
	dir=""
	for d in `echo $1|sed 's,/, ,g'`
	do
		dir="$dir/$d"
		test -d $dir || mkdir $dir
	done
}

while [ $# -gt 0 ]
do
	SRCDIR=${1:?}
	DSTDIR=${2:?}
	shift 2

	if [ ! -d $SRCDIR ]; then
		echo "$SRCDIR not a directory" >&2
		exit 1
	fi
	if [ ! -r $SRCDIR/DISTFILES ]; then
		echo "$SRCDIR/DISTFILES does not exist" >&2
		exit 1
	fi
	mkdirhier $DSTDIR
	chmod -R u+w $DSTDIR
	rm -rf $DSTDIR/*
	
	cat $SRCDIR/DISTFILES |
	while read NAME
	do
	        case "$NAME" in
		*.in)   newname=`echo $NAME|sed 's/\(.*\)\.in$/\1/'`
		        sed "$REGEXP" $SRCDIR/$NAME > $DSTDIR/$newname;;
		*)      newname=$NAME 
		 	cp $SRCDIR/$NAME $DSTDIR/$newname;;
		esac
	        chmod u+w $DSTDIR/$newname
	done
done