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Added awk script relpath.awk to calculate relative paths.

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This commit is contained in:
Zdenek Kabelac 2010-04-15 15:06:26 +00:00
parent adfdf8bb1e
commit 6008aabe91
2 changed files with 41 additions and 0 deletions
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WHATS_NEW
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Version 2.02.64 -
=================================
Added awk script relpath.awk to calculate relative paths.
Version 2.02.63 - 14th April 2010
=================================

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scripts/relpath.awk Executable file
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#!/usr/bin/awk -f
#
# Copyright (C) 2010 Red Hat, Inc. All rights reserved.
#
# This file is part of LVM2.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# 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
# relpath.awk: Script is used to calculate relative path
# between two real absolute paths.
#
# echo /a/b/c/d /a/b/e/f | relpath.awk
# -> ../../e/f/
{
split($1, from, "/");
split($2, to, "/") ;
l = 1;
while (l <= length(from) && l <= length(to) && from[l] == to[l])
l++;
for (i = l; i <= length(from) && length(from[i]); i++) {
if (i > l)
p = sprintf("%s/", p);
p = sprintf("%s..", p);
}
for (i = l; i <= length(to) && length(to[i]); i++) {
if (length(p) > 0)
p = sprintf("%s/", p);
p = sprintf("%s%s", p, to[i]);
}
if (length(p))
p = sprintf("%s/", p);
print p
}