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Commit | Line | Data |
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f0e44959 UD |
1 | #! /bin/sh |
2 | # rellns-sh - Simplified ln program to generate relative symbolic link. | |
2f6d1f1b | 3 | # Copyright (C) 1996, 1997 Free Software Foundation, Inc. |
f0e44959 UD |
4 | # Written by Ulrich Drepper <drepper@cygnus.com>, October 1996 |
5 | # | |
6 | # This program is free software; you can redistribute it and/or modify | |
7 | # it under the terms of the GNU General Public License as published by | |
8 | # the Free Software Foundation; either version 2, or (at your option) | |
9 | # any later version. | |
10 | # | |
11 | # This program is distributed in the hope that it will be useful, | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | # GNU General Public License for more details. | |
15 | # | |
16 | # You should have received a copy of the GNU General Public License | |
17 | # along with this program; if not, write to the Free Software | |
18 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | ||
20 | if test $# -ne 2; then | |
68dbb3a6 UD |
21 | echo "Usage: rellns SOURCE DEST" >&2 |
22 | exit 1 | |
23 | fi | |
24 | ||
c131718c UD |
25 | # Make both paths absolute. |
26 | if test -d $1; then | |
63551311 | 27 | to=`cd $1 && /bin/pwd` |
c131718c UD |
28 | else |
29 | temp=`echo $1 | sed 's%/*[^/]*$%%'` | |
b4012b75 UD |
30 | if test -z "$temp"; then |
31 | to=`/bin/pwd` | |
32 | else | |
33 | to=`cd $temp && /bin/pwd` | |
34 | fi | |
c131718c UD |
35 | to="$to/`echo $1 | sed 's%.*/\([^/][^/]*\)$%\1%'`" |
36 | fi | |
37 | to=`echo $to | sed 's%^/%%'` | |
f0e44959 | 38 | |
c131718c UD |
39 | if test -d $2; then |
40 | from=`echo $2 | sed 's%/*$%%'` | |
41 | else | |
42 | from=`echo $2 | sed 's%/*[^/]*$%%'` | |
43 | fi | |
f0e44959 | 44 | |
c131718c | 45 | if test -z "$from"; then |
63551311 UD |
46 | from=`/bin/pwd | sed 's%^/%%'` |
47 | else | |
48 | from=`cd $from && /bin/pwd | sed 's%^/%%'` | |
c131718c | 49 | fi |
f0e44959 | 50 | |
68dbb3a6 UD |
51 | while test -n "$to" && test -n "$from"; do |
52 | preto=`echo $to | sed 's%^\([^/]*\)/.*%\1%'` | |
53 | prefrom=`echo $from | sed 's%^\([^/]*\)/.*%\1%'` | |
f0e44959 | 54 | |
68dbb3a6 | 55 | test "$preto" != "$prefrom" && break |
f0e44959 | 56 | |
68dbb3a6 UD |
57 | to=`echo $to | sed 's%^[^/]*/*\(.*\)$%\1%'` |
58 | from=`echo $from | sed 's%^[^/]*/*\(.*\)$%\1%'` | |
59 | done | |
f0e44959 | 60 | |
68dbb3a6 UD |
61 | while test -n "$from"; do |
62 | rfrom="../$rfrom" | |
63 | from=`echo $from | sed 's%^[^/]*/*%%'` | |
64 | done | |
65 | ||
66 | ln -s $rfrom$to $2 |