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package Carton::Lock;
use strict;
use Config;
use Carton::Dist;
use Carton::Dist::Core;
use Carton::Package;
use Carton::Index;
use Carton::Util;
use CPAN::Meta;
use CPAN::Meta::Requirements;
use File::Find ();
use Module::CoreList;
use Moo;
has version => (is => 'ro');
has modules => (is => 'ro', default => sub { +{} });
use constant CARTON_LOCK_VERSION => '0.9';
sub from_file {
my($class, $file) = @_;
my $data = Carton::Util::load_json($file);
return $class->new($data);
}
sub write {
my($self, $file) = @_;
Carton::Util::dump_json({ %$self }, $file);
}
sub distributions {
map Carton::Dist->new($_), values %{$_[0]->modules}
}
sub find {
my($self, $module) = @_;
for my $meta (values %{$_[0]->modules}) {
if ($meta->{provides}{$module}) {
return Carton::Dist->new( $self->modules->{$meta->{name}} );
}
}
return;
}
sub find_or_core {
my($self, $module) = @_;
$self->find($module) || $self->find_in_core($module);
}
sub find_in_core {
my($self, $module) = @_;
if (exists $Module::CoreList::version{$]}{$module}) {
my $version = $Module::CoreList::version{$]}{$module}; # maybe undef
return Carton::Dist::Core->new(name => $module, version => $version);
}
return;
}
sub index {
my $self = shift;
my $index = Carton::Index->new;
for my $package ($self->packages) {
$index->add_package($package);
}
return $index;
}
sub packages {
my $self = shift;
my @packages;
while (my($name, $metadata) = each %{$self->modules}) {
while (my($package, $provides) = each %{$metadata->{provides}}) {
# TODO what if duplicates?
push @packages, Carton::Package->new($package, $provides->{version}, $metadata->{pathname});
}
}
return @packages;
}
sub write_index {
my($self, $file) = @_;
open my $fh, ">", $file or die $!;
$self->index->write($fh);
}
sub build_from_local {
my($class, $path, $prereqs) = @_;
my $installs = $class->find_installs($path, $prereqs);
return $class->new(
modules => $installs,
version => CARTON_LOCK_VERSION,
);
}
sub find_installs {
my($class, $path, $prereqs) = @_;
my $libdir = "$path/lib/perl5/$Config{archname}/.meta";
return {} unless -e $libdir;
my $reqs = CPAN::Meta::Requirements->new;
$reqs->add_requirements($prereqs->requirements_for($_, 'requires'))
for qw( configure build runtime test develop );
my @installs;
my $wanted = sub {
if ($_ eq 'install.json') {
push @installs, [ $File::Find::name, "$File::Find::dir/MYMETA.json" ];
}
};
File::Find::find($wanted, $libdir);
my %installs;
for my $file (@installs) {
my $module = Carton::Util::load_json($file->[0]);
my $mymeta = -f $file->[1] ? CPAN::Meta->load_file($file->[1])->as_struct({ version => "2" }) : {};
if ($reqs->accepts_module($module->{name}, $module->{provides}{$module->{name}}{version})) {
if (my $exist = $installs{$module->{name}}) {
my $old_ver = version->new($exist->{provides}{$module->{name}}{version});
my $new_ver = version->new($module->{provides}{$module->{name}}{version});
if ($new_ver >= $old_ver) {
$installs{ $module->{name} } = { %$module, mymeta => $mymeta };
} else {
# Ignore same distributions older than the one we have
}
} else {
$installs{ $module->{name} } = { %$module, mymeta => $mymeta };
}
} else {
# Ignore installs because cpanfile doesn't accept it
}
}
return \%installs;
}
1;
|
