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|
# ABSTRACT: Extract packages provided/required by a distribution archive
package Pinto::PackageExtractor;
use Moose;
use MooseX::StrictConstructor;
use MooseX::MarkAsMethods ( autoclean => 1 );
use Try::Tiny;
use Dist::Metadata;
use Pinto::Types qw(File Dir);
use Pinto::Util qw(debug throw whine);
use Pinto::ArchiveUnpacker;
#-----------------------------------------------------------------------------
our $VERSION = '0.14'; # VERSION
#-----------------------------------------------------------------------------
has archive => (
is => 'ro',
isa => File,
required => 1,
coerce => 1,
);
has unpacker => (
is => 'ro',
isa => 'Pinto::ArchiveUnpacker',
default => sub { Pinto::ArchiveUnpacker->new( archive => $_[0]->archive ) },
init_arg => undef,
lazy => 1,
);
has work_dir => (
is => 'ro',
isa => Dir,
default => sub { $_[0]->unpacker->unpack },
init_arg => undef,
lazy => 1,
);
has dm => (
is => 'ro',
isa => 'Dist::Metadata',
default => sub { Dist::Metadata->new( dir => $_[0]->work_dir, include_inner_packages => 1 ) },
init_arg => undef,
lazy => 1,
);
#-----------------------------------------------------------------------------
sub provides {
my ($self) = @_;
my $archive = $self->archive;
my $basename = $archive->basename;
debug "Extracting packages provided by archive $basename";
my $mod_info = try {
# Some modules get their VERSION by loading some other
# module from lib/. So make sure that lib/ is in @INC
my $lib_dir = $self->work_dir->subdir('lib');
local @INC = ( $lib_dir->stringify, @INC );
# TODO: Run this under Safe to protect ourselves
# from evil. See ANDK/pause/pmfile.pm for example
$self->dm->module_info; # returned from try{}
}
catch {
throw "Unable to extract packages from $basename: $_";
};
my @provides;
for my $package ( sort keys %{$mod_info} ) {
my $info = $mod_info->{$package};
my $version = version->parse( $info->{version} );
debug "Archive $basename provides: $package-$version";
push @provides, {
name => $package,
version => $version,
file => $info->{file},
};
}
@provides = $self->__apply_workarounds(@provides);
whine "$basename contains no packages and will not be in the index"
if not @provides;
return @provides;
}
#-----------------------------------------------------------------------------
sub requires {
my ($self) = @_;
my $archive = $self->archive;
debug "Extracting packages required by archive $archive";
my $prereqs_meta = try { $self->dm->meta->prereqs }
catch { throw "Unable to extract prereqs from $archive: $_" };
my @prereqs;
for my $phase ( keys %{$prereqs_meta} ) {
# TODO: Also capture the relation (suggested, requires, recomends, etc.)
# But that will require a schema change to add another column to the table.
my $prereqs_for_phase = $prereqs_meta->{$phase} || {};
my $required_prereqs = $prereqs_for_phase->{requires} || {};
for my $package ( sort keys %{$required_prereqs} ) {
my $version = $required_prereqs->{$package};
debug "Archive $archive requires ($phase): $package~$version";
push @prereqs, {
name => $package,
version => $version,
phase => $phase,
};
}
}
my $base = $archive->basename;
whine "$base appears to be a bundle. Prereqs for bundles cannot be determined automatically"
if $base =~ m/^ Bundle- /x;
# whine "$base uses dynamic configuration so prereqs may be incomplete"
# if $self->dm->meta->dynamic_config;
return @prereqs;
}
#-----------------------------------------------------------------------------
sub metadata {
my ($self) = @_;
my $archive = $self->archive;
debug "Extracting metadata from archive $archive";
my $metadata = try { $self->dm->meta } catch { throw "Unable to extract metadata from $archive: $_" };
return $metadata;
}
#=============================================================================
# TODO: Generalize these workarounds and/or move them into a separate module
sub __apply_workarounds {
my ($self, @provides) = @_;
return $self->__common_sense_workaround(@provides)
if $self->archive->basename =~ m/^ common-sense /x;
return $self->__fcgi_workaround(@provides)
if $self->archive->basename =~ m/^ FCGI-\d /x;
return @provides;
}
#-----------------------------------------------------------------------------
sub __common_sense_workaround {
my ($self) = @_;
my ($version) = ( $self->archive->basename =~ m/common-sense- ([\d_.]+) \.tar\.gz/x );
return {
name => 'common::sense',
file => 'sense.pm.PL',
version => version->parse($version),
};
}
#-----------------------------------------------------------------------------
sub __fcgi_workaround {
my ($self) = @_;
my ($version) = ( $self->archive->basename =~ m/FCGI- ([\d_.]+) \.tar\.gz/x );
return {
name => 'FCGI',
file => 'FCGI.PL',
version => version->parse($version),
};
}
#-----------------------------------------------------------------------------
__PACKAGE__->meta->make_immutable;
#-----------------------------------------------------------------------------
1;
__END__
=pod
=encoding UTF-8
=for :stopwords Jeffrey Ryan Thalhammer
=head1 NAME
Pinto::PackageExtractor - Extract packages provided/required by a distribution archive
=head1 VERSION
version 0.14
=head1 AUTHOR
Jeffrey Ryan Thalhammer <jeff@stratopan.com>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2015 by Jeffrey Ryan Thalhammer.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|
