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From: zkabelac@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2 ./WHATS_NEW scripts/relpath.awk Date: Thu, 15 Apr 2010 15:06:00 -0000 [thread overview] Message-ID: <20100415150629.6840.qmail@sourceware.org> (raw) CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac@sourceware.org 2010-04-15 15:06:27 Modified files: . : WHATS_NEW Added files: scripts : relpath.awk Log message: Added awk script relpath.awk to calculate relative paths. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.1525&r2=1.1526 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/scripts/relpath.awk.diff?cvsroot=lvm2&r1=NONE&r2=1.1 --- LVM2/WHATS_NEW 2010/04/14 21:47:48 1.1525 +++ LVM2/WHATS_NEW 2010/04/15 15:06:26 1.1526 @@ -1,5 +1,6 @@ Version 2.02.64 - ================================= + Added awk script relpath.awk to calculate relative paths. Version 2.02.63 - 14th April 2010 ================================= /cvs/lvm2/LVM2/scripts/relpath.awk,v --> standard output revision 1.1 --- LVM2/scripts/relpath.awk +++ - 2010-04-15 15:06:29.091435000 +0000 @@ -0,0 +1,40 @@ +#!/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 +}
next reply other threads:[~2010-04-15 15:06 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-04-15 15:06 zkabelac [this message] 2010-05-21 15:28 mpatocka
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