glibc/scripts/rellns-sh
Ulrich Drepper 5bc2f642a7 Update.
1998-05-08 21:56  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* autolock.sh: Removed.
	* manual/move-if-change: Removed.

	* scripts: new directory.
	* =__ify: moved to scripts.
	* config.guess: Likewise.
	* config.sub: Likewise.
	* gen-FAQ.pl: Likewise.
	* install-sh: Likewise.
	* mkinstalldirs: Likewise.
	* move-if-change: Likewise.
	* printsources: Likewise.
	* rellns.sh: Likewise.
	* test-installation.pl: Likewise.

	* configure.in: Look in scripts for config.guess, config.sub,
	install-sh.
	* Makefile: Distribute all above files in their
	new home.  Find gen-FAQ.pl and test-installation.pl in scripts.
	* manual/Makefile: Find mkinstalldirs and move-if-change in
	$(..)scripts.  Drop them from distribute.  Minor cleanups.
	* Makerules: Find mkinstalldirs and rellns-sh in scripts.
	* sysdeps/mach/hurd/Makefile: Find move-if-change in scripts.
	* timezone/Makefile: Find rellns-sh in scripts.
1998-05-08 20:56:30 +00:00

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#! /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
# Make both paths absolute.
if test -d $1; then
to=`cd $1 && /bin/pwd`
else
temp=`echo $1 | sed 's%/*[^/]*$%%'`
if test -z "$temp"; then
to=`/bin/pwd`
else
to=`cd $temp && /bin/pwd`
fi
to="$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=`/bin/pwd | sed 's%^/%%'`
else
from=`cd $from && /bin/pwd | sed 's%^/%%'`
fi
while test -n "$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