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-rwxr-xr-xrellns-sh67
1 files changed, 67 insertions, 0 deletions
diff --git a/rellns-sh b/rellns-sh
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+#! /bin/sh
+# rellns-sh - Simplified ln program to generate relative symbolic link.
+# Copyright (C) 1996 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"
+  exit 1
+fi
+
+case $1 in
+/*)
+  # Make both paths absolute.
+  to=`echo $1 | sed 's%^/%%'`
+
+  if test -d $2; then
+    fromname=.
+    from=`echo $2 | sed 's%/$%%' | sed 's%^/%%'`
+  else
+    fromname=`echo $2 | sed 's%.*/\([^/]*\)$%\1%'`
+    from=`echo $2 | sed "s%/*$fromname$%%" | sed 's%^/%%'`
+  fi
+
+  case $from in
+  /*) ;;
+  ?*) from=`cd $from && pwd | sed 's%^/%%'` ;;
+  *) from=`pwd | sed 's%^/%%'` ;;
+  esac
+
+  while test -n "$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
+  ;;
+*)
+  # Nothing to do, the path is already relative.
+  ln -s $1 $2
+  ;;
+esac
+
+exit 0