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package App::ArchLinux::PackagerTools::CPAN::PackagesDetailsFetcher;
use strictures;
use autodie;
use Function::Parameters;
use Log::Any qw($log);
use IPC::Run qw(run);
use App::ArchLinux::PackagerTools::Cache;
=head1 NAME
App::ArchLinux::PackagerTools::CPAN::PackagesDetailsFetcher - Provide access to the 02packages.details CPAN file
=head1 SYNOPSIS
use App::ArchLinux::PackagerTools::CPAN::PackagesDetailsFetcher;
=head1 DESCRIPTION
Internal class that abstracts access to the 02packages file from CPAN.
=head1 METHODS
=head2 new
my $fetcher = App::ArchLinux::PackagerTools::CPAN::PackagesDetailsFetcher->new();
Returns a new instance.
=cut
method new($class: $context, $deps = {}) {
$deps->{cache} //= App::ArchLinux::PackagerTools::Cache->new($context);
return $class->new_no_defaults($context, $deps);
}
method new_no_defaults($class: $context, $deps = {}) {
my $self = {};
bless $self, $class;
$self->{deps} = $deps;
return $self;
}
=head2 Public Methods
=cut
=head3 get_packages_data
my $data = $fetcher->get_packages_data();
Return the uncompressed data of the 02packages.details.txt.gz file.
=cut
method get_packages_data() {
my $data;
my $use_cpanplus_index = 1;
if ($use_cpanplus_index) {
# This is mostly for development so we don't go over the network on each run.
my $packages_file = "$ENV{HOME}/.cpanplus/02packages.details.txt.gz";
run ['zcat', $packages_file], \undef, \$data or die $log->error("Failed to fetch and uncompress CPAN module index: $?")."\n";
} else {
# TODO cache the details file locally
# TODO when we have a cache of this, remove the $use_cpanplus_index part since that is worse than having our own cache
# TODO make the cpan mirror configurable
run [qw(curl -s ), "https://cpan.metacpan.org/modules/02packages.details.txt.gz"], '|', ['zcat'], \$data or die $log->error("Failed to fetch and uncompress CPAN module index: $?")."\n";
}
return $data;
}
1;
__END__
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