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package SlackBuild::Registry::Backend::FS;
use strict;
use warnings;
use Carp;
use File::Basename;
use List::Regexp;
use File::stat;
use File::Spec;
use Fcntl ':mode';
use SlackBuild::Registry::Record;
=head1 NAME
SlackBuild::Registry::Backend::FS - filesystem backend for slackbuild registry
=head1 SYNOPSIS
$reg = new SlackBuild::Registry(dir => DIRECTORY);
my @a = $x->lookup('openssl', version => '1.0.2m');
=head1 METHODS
=head2 new
$x = new SlackBuild::Registry::Backend::FS(dir => DIRECTORY)
=cut
sub new {
my $class = shift;
my $self = bless {}, $class;
local %_ = @_;
if (my $dir = delete $_{dir}) {
$self->{dir} = $dir;
} else {
croak "required parameter dir not present";
}
croak "too many arguments" if keys %_;
return $self;
}
my @architectures = qw(i386 x86_64 arm noarch);
my @suffixes = qw(.tgz .txz);
=head2 lookup
@a = $backend->lookup(PACKAGE, [version=>X], [arch=>Y], [build=>Z])
Returns a sorted array of SlackBuild::Registry::Record objects matching the
search criteria.
=cut
sub lookup {
my ($self, $pkg, %cond) = @_;
my $v;
my $pat = "$pkg-*-*-*";
my $rx = '^' . qr($pkg) . '-'
. '(?<version>\d+(?:\.\d+)*.*?)-(?<arch>'
. regexp_opt(@architectures)
.= ')-(?<build>\d+)(?<rest>.*)$';
my @result = sort {
my $d;
if ($d = ($a->package || '') cmp ($b->package || '')) {
$d
} elsif ($d = $b->version <=> $a->version) {
$d
} elsif ($a->arch && $b->arch
&& ($d = $a->arch cmp $b->arch)) {
$d
} else {
($b->build || 1) <=> ($a->build || 1)
}
}
grep { $_->matches(%cond) }
map {
my ($name,$path,$suffix) = fileparse($_, @suffixes);
if ($name =~ m{$rx}) {
my $st = stat($_);
if (S_ISREG($st->mode)) {
new SlackBuild::Registry::Record($pkg,
version => $+{version},
arch => $+{arch},
build => $+{build},
date => $st->mtime,
filename => File::Spec->abs2rel($_, $self->{dir}))
} else {
()
}
} else {
()
}
} (glob File::Spec->catfile($self->{dir}, $pat));
if (wantarray) {
(@result)
} else {
shift @result;
}
}
1;
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