#! /bin/sh # rellns-sh - Simplified ln program to generate relative symbolic link. # Copyright (C) 1996, 1997 Free Software Foundation, Inc. # Written by Ulrich Drepper <drepper@cygnus.com>, October 1996 # # This program 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 2, or (at your option) # any later version. # # This program 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 this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. if test $# -ne 2; then echo "Usage: rellns SOURCE DEST" >&2 exit 1 fi if test -x /bin/pwd; then pwd=/bin/pwd elif test -x /usr/bin/pwd; then pwd=/usr/bin/pwd else pwd='pwd' fi # Make both paths absolute. if test -d $1; then to=`cd $1 && $pwd` else temp=`echo $1 | sed 's%/*[^/]*$%%'` if test -z "$temp"; then to=`$pwd` else to=`cd $temp && $pwd` fi to="$to/`echo $1 | sed 's%.*/\([^/][^/]*\)$%\1%'`" fi to=`echo $to | sed 's%^/%%'` if test -d $2; then from=`echo $2 | sed 's%/*$%%'` else from=`echo $2 | sed 's%/*[^/]*$%%'` fi if test -z "$from"; then from=`$pwd | sed 's%^/%%'` else from=`cd $from && $pwd | sed 's%^/%%'` fi while test -n "$to" && test -n "$from"; do preto=`echo $to | sed 's%^\([^/]*\)/.*%\1%'` prefrom=`echo $from | sed 's%^\([^/]*\)/.*%\1%'` test "$preto" != "$prefrom" && break to=`echo $to | sed 's%^[^/]*/*\(.*\)$%\1%'` from=`echo $from | sed 's%^[^/]*/*\(.*\)$%\1%'` done while test -n "$from"; do rfrom="../$rfrom" from=`echo $from | sed 's%^[^/]*/*%%'` done ln -s $rfrom$to $2