FM / Deps

/usr/share/perl5/Dpkg/Deps

Name	Size	Mode	Actions
AND.pm	4711	0644	edit dl rm
KnownFacts.pm	5772	0644	edit dl rm
Multiple.pm	5128	0644	edit dl rm
OR.pm	4329	0644	edit dl rm
Simple.pm	18383	0644	edit dl rm
Union.pm	2511	0644	edit dl rm

Edit: /usr/share/perl5/Dpkg/Deps/Multiple.pm (5128B)

# Copyright © 1998 Richard Braakman
# Copyright © 1999 Darren Benham
# Copyright © 2000 Sean 'Shaleh' Perry
# Copyright © 2004 Frank Lichtenheld
# Copyright © 2006 Russ Allbery
# Copyright © 2007-2009 Raphaël Hertzog <hertzog@debian.org>
# Copyright © 2008-2009, 2012-2014 Guillem Jover <guillem@debian.org>
#
# This program is free software; you may redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

package Dpkg::Deps::Multiple;

=encoding utf8

=head1 NAME

Dpkg::Deps::Multiple - base module to represent multiple dependencies

=head1 DESCRIPTION

The Dpkg::Deps::Multiple module provides objects implementing various types
of dependencies. It is the base class for Dpkg::Deps::{AND,OR,Union}.

=cut

use strict;
use warnings;

our $VERSION = '1.02';

use Carp;

use Dpkg::ErrorHandling;

use parent qw(Dpkg::Interface::Storable);

=head1 METHODS

=over 4

=item $dep = Dpkg::Deps::Multiple->new(%opts);

Creates a new object.

=cut

sub new {
    my $this = shift;
    my $class = ref($this) || $this;
    my $self = { list => [ @_ ] };

bless $self, $class;
    return $self;
}

=item $dep->reset()

Clears any dependency information stored in $dep so that $dep->is_empty()
returns true.

=cut

sub reset {
    my $self = shift;

$self->{list} = [];
}

=item $dep->add(@deps)

Adds new dependency objects at the end of the list.

=cut

sub add {
    my $self = shift;

push @{$self->{list}}, @_;
}

=item $dep->get_deps()

Returns a list of sub-dependencies.

=cut

sub get_deps {
    my $self = shift;

return grep { not $_->is_empty() } @{$self->{list}};
}

=item $dep->sort()

Sorts alphabetically the internal list of dependencies.

=cut

sub sort {
    my $self = shift;

my @res = ();
    @res = sort { Dpkg::Deps::deps_compare($a, $b) } @{$self->{list}};
    $self->{list} = [ @res ];
}

=item $dep->arch_is_concerned($arch)

Returns true if at least one of the sub-dependencies apply to this
architecture.

=cut

sub arch_is_concerned {
    my ($self, $host_arch) = @_;

my $res = 0;
    foreach my $dep (@{$self->{list}}) {
        $res = 1 if $dep->arch_is_concerned($host_arch);
    }
    return $res;
}

=item $dep->reduce_arch($arch)

Simplifies the dependencies to contain only information relevant to the
given architecture. The non-relevant sub-dependencies are simply removed.

This trims off the architecture restriction list of Dpkg::Deps::Simple
objects.

=cut

sub reduce_arch {
    my ($self, $host_arch) = @_;

my @new;
    foreach my $dep (@{$self->{list}}) {
        $dep->reduce_arch($host_arch);
        push @new, $dep if $dep->arch_is_concerned($host_arch);
    }
    $self->{list} = [ @new ];
}

=item $dep->has_arch_restriction()

Returns the list of package names that have such a restriction.

=cut

sub has_arch_restriction {
    my $self = shift;

my @res;
    foreach my $dep (@{$self->{list}}) {
        push @res, $dep->has_arch_restriction();
    }
    return @res;
}

=item $dep->profile_is_concerned()

Returns true if at least one of the sub-dependencies apply to this profile.

=cut

sub profile_is_concerned {
    my ($self, $build_profiles) = @_;

my $res = 0;
    foreach my $dep (@{$self->{list}}) {
        $res = 1 if $dep->profile_is_concerned($build_profiles);
    }
    return $res;
}

=item $dep->reduce_profiles()

Simplifies the dependencies to contain only information relevant to the
given profile. The non-relevant sub-dependencies are simply removed.

This trims off the profile restriction list of Dpkg::Deps::Simple objects.

=cut

sub reduce_profiles {
    my ($self, $build_profiles) = @_;

my @new;
    foreach my $dep (@{$self->{list}}) {
        $dep->reduce_profiles($build_profiles);
        push @new, $dep if $dep->profile_is_concerned($build_profiles);
    }
    $self->{list} = [ @new ];
}

=item $dep->is_empty()

Returns true if the dependency is empty and doesn't contain any useful
information. This is true when a (descendant of) Dpkg::Deps::Multiple
contains an empty list of dependencies.

=cut

sub is_empty {
    my $self = shift;

return scalar @{$self->{list}} == 0;
}

=item $dep->merge_union($other_dep)

This method is not meaningful for this object, and will always croak.

=cut

sub merge_union {
    croak 'method merge_union() is only valid for Dpkg::Deps::Simple';
}

=back

=head1 CHANGES

=head2 Version 1.02 (dpkg 1.17.10)

New methods: Add $dep->profile_is_concerned() and $dep->reduce_profiles().

=head2 Version 1.01 (dpkg 1.16.1)

New method: Add $dep->reset().

=head2 Version 1.00 (dpkg 1.15.6)

Mark the module as public.

=cut

cmd: