#!/usr/bin/perl
use strict;
use warnings;
use CPAN::HandleConfig;
use CPAN;
use CPAN::Mirrors;
use File::Spec;
my $file = 'MIRRORED.BY';
my $mirrored_by_file = File::Spec->catfile(
CPAN::HandleConfig::cpan_home(),
$file
);
unless( -e $mirrored_by_file ) {
eval {
CPAN::FTP->localize(
$file,
$mirrored_by_file,
3,1) } or die "Could not fetch a $file: $@\n";
}
my $mirrors = CPAN::Mirrors->new( $mirrored_by_file );
my $seen = {};
my $n = 5;
my $best_continent = $mirrors->find_best_continents( n => $n, seen => $seen, verbose => 1 );
print "Best continent is $best_continent\n";
my @mirrors = $mirrors->get_mirrors_by_continents( $best_continent );
my $callback = sub {
my( $m ) = @_;
printf "%s = %s ms\n", $m->hostname, 1000 * $m->rtt
};
my @sorted_mirrors = $mirrors->get_mirrors_timings( \@mirrors, $seen, $callback );
print "Best mirrors are ",
join "\n\t", map( $_->hostname, @sorted_mirrors[0..$n-1] ),
"\n";
print "Best urls are\n\t",
join( "\n\t", map( $_->http, @sorted_mirrors[0..$n-1] ) ),
"\n";
=encoding utf8
=head1 NAME
cpan-mirrors - Find the fatest CPAN mirrors nearby
=head1 SYNOPSIS
% cpan-mirrors
Testing Africa
is.co.za -> 733.72 ms
wa.co.za -> 601.56 ms
ucu.ac.ug -> 407.99 ms
mirror.ac.za -> 614.05 ms
zol.co.zw -> 612.57 ms
-->median time: 612.57 ms
Testing Oceania
serversaustralia.com.au -> 38.62 ms
cpan.inspire.net.nz -> 67.81 ms
digitalpacific.com.au -> 37.89 ms
uber.com.au -> 44.47 ms
lagoon.nc -> 67.49 ms
-->median time: 44.47 ms
Testing North America
httpupdate40.cpanel.net -> 254.00 ms
httpupdate35.cpanel.net -> 409.75 ms
mirrors.sonic.net -> 368.56 ms
httpupdate8.cpanel.net -> 409.10 ms
cpan.cs.utah.edu -> 408.00 ms
-->median time: 408.00 ms
Testing Asia
vinahost.vn -> 146.10 ms
yazd.ac.ir -> 469.29 ms
mirrors-ru.go-parts.com -> 367.09 ms
sohu.com -> 399.76 ms
neolabs.kz -> 610.92 ms
-->median time: 399.76 ms
Testing South America
mmgdesigns.com.ar -> 407.96 ms
nbtelecom.com.br -> 401.96 ms
sunsite.dcc.uchile.cl -> 415.69 ms
linorg.usp.br -> 424.65 ms
unal.edu.co -> 407.60 ms
-->median time: 407.96 ms
Testing Europe
uk2.net -> 409.37 ms
ambiweb.de -> 710.65 ms
bibleonline.ru -> 471.49 ms
rol.ru -> 469.70 ms
rub.de -> 346.57 ms
-->median time: 469.70 ms
Median result by continent:
44 ms Oceania
400 ms Asia
408 ms South America
408 ms North America
470 ms Europe
613 ms Africa
Best continent is Oceania
cpan.catalyst.net.nz = 78.8369178771973 ms
cpan.inspire.net.nz = 69.4258213043213 ms
cpan.mirrors.ilisys.com.au = 50.2209663391113 ms
digitalpacific.com.au = 40.1251316070557 ms
lagoon.nc = 88.8760089874268 ms
nautile.nc = 65.7081604003906 ms
optusnet.com.au = 41.4729118347168 ms
serversaustralia.com.au = 46.1521148681641 ms
uber.com.au = 48.2730865478516 ms
waia.asn.au = 86.2929821014404 ms
webtastix.net = 70.5790519714355 ms
Best mirrors are digitalpacific.com.au
optusnet.com.au
serversaustralia.com.au
uber.com.au
cpan.mirrors.ilisys.com.au
Best urls are
http://cpan.mirror.digitalpacific.com.au/
http://mirror.optusnet.com.au/CPAN/
http://cpan.mirror.serversaustralia.com.au/
http://cpan.mirror.uber.com.au/
http://cpan.mirrors.ilisys.com.au/
=head1 DESCRIPTION
CPAN Mirrors come and go, and maybe you do too. The mirror that was
fast then might not be fast now, especially if you changed hemispheres.
This program goes through the F<MIRRORED.BY> file and pings a selection
of mirrors on each continent to find the fastest mirrors. From the best
continent, it samples several mirrors to find the URL you should add
to your configuration.
If you don't have a F<MIRRORED.BY> file, this program will download one
for you. It looks through your existing C<urllist> configuration and
then default locations. It stores it in C<~/.cpan> (or your configured
location to store files).
=head1 TO DO
=over 4
=item * Add an option to update the CPAN configuration
=item * Add an option to give JSON output
=back
=head1 AUTHOR
brian d foy C<< <bdfoy@cpan.org> >>
=head1 LICENSE
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
See L<http://www.perl.com/perl/misc/Artistic.html>
=cut
