100 lines
1.8 KiB
Perl
Executable file
100 lines
1.8 KiB
Perl
Executable file
#!/usr/bin/env perl
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use 5.22.0;
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package Module;
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use Moose;
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use Module::CoreList;
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use Storable;
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has 'name' => (is => 'ro');
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has 'version' => (is => 'ro');
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has 'depends' => (
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builder => 'get_deps',
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is => 'ro',
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isa => 'ArrayRef[Module]',
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lazy => 1,
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);
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our %cache;
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if (-e 'cache.stor') {
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eval {
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my $cache_href=retrieve('cache.stor');
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%cache = $cache_href->%*;
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};
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if ($@) {
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print STDERR "Couldn't load cache $@\n";
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}
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}
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END {
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store \%cache, 'cache.stor';
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};
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sub new_module {
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my $class = shift;
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my $module = shift;
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chomp $module;
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my ($name, $version) = split (/[\-~]/, $module);
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return $cache{$name} if exists $cache{$name};
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$cache{$name} = Module->new(name => $name);
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}
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sub _is_core {
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my $module = shift;
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chomp $module;
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my ($name, $version) = split (/[\-~]/, $module);
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my $ret = ($name eq 'perl' || Module::CoreList->first_release($name)) // 0;
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return $ret;
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}
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sub get_deps {
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my $self=shift;
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my $module = $self->name;
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# skip perl, or core modules
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return [] if _is_core($module);
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open(my $ph, "-|", qw/cpanm --quiet --showdeps/, $module);
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return [map {Module->new_module($_)} grep {!_is_core($_)} <$ph>];
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}
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sub print_deps {
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my ($self, $level, $v) = @_;
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for my $dep ($self->depends->@*) {
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my $name = $dep->name;
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print ((" " x $level), $name, "\n");
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$dep->print_deps($level+1, [@$v, $name]) unless ($name ~~ @$v);
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}
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}
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use strict;
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use autodie;
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use warnings;
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use Data::Dumper;
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use List::Util qw/uniq/;
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sub dep_order {
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my $module = shift;
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my @orders;
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for my $dep ($module->depends->@*) {
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push @orders, dep_order($dep);
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}
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push @orders, $module;
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return @orders;
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}
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my $foo = Module->new_module('Moose');
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$foo->print_deps(0, []);
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print Dumper([map {$_->name} uniq dep_order($foo)]);
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