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package URPM;
use strict;
use vars qw($VERSION @ISA);
require DynaLoader;
@ISA = qw(DynaLoader);
$VERSION = '0.05';
bootstrap URPM $VERSION;
sub new {
my ($class) = @_;
bless {
depslist => [],
provides => {},
}, $class;
}
sub traverse {
my ($urpm, $callback) = @_;
if ($callback) {
foreach (@{$urpm->{depslist} || []}) {
$callback->($_);
}
}
scalar @{$urpm->{depslist} || []};
}
sub traverse_tag {
my ($urpm, $tag, $names, $callback) = @_;
my ($count, %names) = (0);
if (@{$names || []}) {
@names{@$names} = ();
if ($tag eq 'name') {
foreach (@{$urpm->{depslist} || []}) {
if (exists $names{$_->name}) {
$callback and $callback->($_);
++$count;
}
}
} elsif ($tag eq 'whatprovides') {
foreach (@$names) {
foreach (keys %{$urpm->{provides}{$_} || {}}) {
$callback and $callback->($urpm->{depslist}[$_]);
++$count;
}
}
} elsif ($tag eq 'whatrequires') {
foreach (@{$urpm->{depslist} || []}) {
if (grep { /^([^ \[]*)/ && exists $names{$1} } $_->requires) {
$callback and $callback->($_);
++$count;
}
}
} elsif ($tag eq 'group') {
foreach (@{$urpm->{depslist} || []}) {
if (exists $names{$_->group}) {
$callback and $callback->($_);
++$count;
}
}
} elsif ($tag eq 'triggeredby' || $tag eq 'path') {
foreach (@{$urpm->{depslist} || []}) {
if (grep { exists $names{$_} } $_->files, grep { /^\// } $_->provides_nosense) {
$callback and $callback->($_);
++$count;
}
}
} else {
die "unknown tag";
}
}
$count;
}
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