gecko-dev/build/unix/abs2rel.pl

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#!env perl
2012-05-21 11:12:37 +00:00
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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;
}