/build/unix/abs2rel.pl
http://github.com/zpao/v8monkey · Perl · 67 lines · 21 code · 8 blank · 38 comment · 3 complexity · 3c7a82aad6da9bdca3638eeeeabc138f MD5 · raw file
- #!env perl
- # ***** BEGIN LICENSE BLOCK *****
- # Version: MPL 1.1/GPL 2.0/LGPL 2.1
- #
- # The contents of this file are subject to the Mozilla Public License Version
- # 1.1 (the "License"); you may not use this file except in compliance with
- # the License. You may obtain a copy of the License at
- # http://www.mozilla.org/MPL/
- #
- # Software distributed under the License is distributed on an "AS IS" basis,
- # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- # for the specific language governing rights and limitations under the
- # License.
- #
- # The Original Code is mozilla.org Code.
- #
- # The Initial Developer of the Original Code is
- # Netscape Communications Corporation.
- # Portions created by the Initial Developer are Copyright (C) 2002
- # the Initial Developer. All Rights Reserved.
- #
- # Contributor(s):
- #
- # Alternatively, the contents of this file may be used under the terms of
- # either of the GNU General Public License Version 2 or later (the "GPL"),
- # or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- # in which case the provisions of the GPL or the LGPL are applicable instead
- # of those above. If you wish to allow use of your version of this file only
- # under the terms of either the GPL or the LGPL, and not to allow others to
- # use your version of this file under the terms of the MPL, indicate your
- # decision by deleting the provisions above and replace them with the notice
- # and other provisions required by the GPL or the LGPL. If you do not delete
- # the provisions above, a recipient may use your version of this file under
- # the terms of any one of the MPL, the GPL or the LGPL.
- #
- # ***** END LICENSE BLOCK *****
- use File::Spec::Unix;
- use strict;
- print "Usage: $0 dest_path start_path\n" if ($#ARGV+1 != 2);
- my $finish = my_canonpath(shift);
- my $start = my_canonpath(shift);
- my $res = File::Spec::Unix->abs2rel($finish, $start);
- #print STDERR "abs2rel($finish,$start) = $res\n";
- print "$res\n";
- sub my_canonpath($) {
- my ($file) = @_;
- my (@inlist, @outlist, $dir);
- # Do what File::Spec::Unix->no_upwards should do
- my @inlist = split(/\//, File::Spec::Unix->canonpath($file));
- foreach $dir (@inlist) {
- if ($dir eq '..') {
- pop @outlist;
- } else {
- push @outlist, $dir;
- }
- }
- $file = join '/',@outlist;
- return $file;
- }