FM / Control

/usr/share/perl5/Dpkg/Control

Name	Size	Mode	Actions
Tests/	-	0755	rm
Changelog.pm	1427	0644	edit dl rm
Fields.pm	2111	0644	edit dl rm
FieldsCore.pm	29589	0644	edit dl rm
Hash.pm	1229	0644	edit dl rm
HashCore.pm	15764	0644	edit dl rm
Info.pm	5150	0644	edit dl rm
Tests.pm	1775	0644	edit dl rm
Types.pm	2686	0644	edit dl rm

Edit: /usr/share/perl5/Dpkg/Control/Info.pm (5150B)

# Copyright © 2007-2010 Raphaël Hertzog <hertzog@debian.org>
# Copyright © 2009, 2012-2015 Guillem Jover <guillem@debian.org>
#
# This program is free software; you can 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 program 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::Control::Info;

use strict;
use warnings;

our $VERSION = '1.01';

use Dpkg::Control;
use Dpkg::ErrorHandling;
use Dpkg::Gettext;

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

use overload
    '@{}' => sub { return [ $_[0]->{source}, @{$_[0]->{packages}} ] };

=encoding utf8

=head1 NAME

Dpkg::Control::Info - parse files like debian/control

=head1 DESCRIPTION

It provides a class to access data of files that follow the same
syntax as F<debian/control>.

=head1 METHODS

=over 4

=item $c = Dpkg::Control::Info->new(%opts)

Create a new Dpkg::Control::Info object. Loads the file from the filename
option, if no option is specified filename defaults to F<debian/control>.
If a scalar is passed instead, it will be used as the filename. If filename
is "-", it parses the standard input. If filename is undef no loading will
be performed.

=cut

sub new {
    my ($this, @args) = @_;
    my $class = ref($this) || $this;
    my $self = {
	source => undef,
	packages => [],
    };
    bless $self, $class;

my %opts;
    if (scalar @args == 0) {
        $opts{filename} = 'debian/control';
    } elsif (scalar @args == 1) {
        $opts{filename} = $args[0];
    } else {
        %opts = @args;
    }

$self->load($opts{filename}) if $opts{filename};

return $self;
}

=item $c->reset()

Resets what got read.

=cut

sub reset {
    my $self = shift;
    $self->{source} = undef;
    $self->{packages} = [];
}

=item $c->parse($fh, $description)

Parse a control file from the given filehandle. Exits in case of errors.
$description is used to describe the filehandle, ideally it's a filename
or a description of where the data comes from. It is used in error messages.
The data in the object is reset before parsing new control files.

=cut

sub parse {
    my ($self, $fh, $desc) = @_;
    $self->reset();
    my $cdata = Dpkg::Control->new(type => CTRL_INFO_SRC);
    return if not $cdata->parse($fh, $desc);
    $self->{source} = $cdata;
    unless (exists $cdata->{Source}) {
	$cdata->parse_error($desc, g_('first block lacks a Source field'));
    }
    while (1) {
	$cdata = Dpkg::Control->new(type => CTRL_INFO_PKG);
        last if not $cdata->parse($fh, $desc);
	push @{$self->{packages}}, $cdata;
	unless (exists $cdata->{Package}) {
	    $cdata->parse_error($desc, g_("block lacks the '%s' field"),
	                        'Package');
	}
	unless (exists $cdata->{Architecture}) {
	    $cdata->parse_error($desc, g_("block lacks the '%s' field"),
	                        'Architecture');
	}

}
}

=item $c->load($file)

Load the content of $file. Exits in case of errors. If file is "-", it
loads from the standard input.

=item $c->[0]

=item $c->get_source()

Returns a Dpkg::Control object containing the fields concerning the
source package.

=cut

sub get_source {
    my $self = shift;
    return $self->{source};
}

=item $c->get_pkg_by_idx($idx)

Returns a Dpkg::Control object containing the fields concerning the binary
package numbered $idx (starting at 1).

=cut

sub get_pkg_by_idx {
    my ($self, $idx) = @_;
    return $self->{packages}[--$idx];
}

=item $c->get_pkg_by_name($name)

Returns a Dpkg::Control object containing the fields concerning the binary
package named $name.

=cut

sub get_pkg_by_name {
    my ($self, $name) = @_;
    foreach my $pkg (@{$self->{packages}}) {
	return $pkg if ($pkg->{Package} eq $name);
    }
    return;
}

=item $c->get_packages()

Returns a list containing the Dpkg::Control objects for all binary packages.

=cut

sub get_packages {
    my $self = shift;
    return @{$self->{packages}};
}

=item $str = $c->output([$fh])

Return the content info into a string. If $fh is specified print it into
the filehandle.

=cut

sub output {
    my ($self, $fh) = @_;
    my $str;
    $str .= $self->{source}->output($fh);
    foreach my $pkg (@{$self->{packages}}) {
	print { $fh } "\n" if defined $fh;
	$str .= "\n" . $pkg->output($fh);
    }
    return $str;
}

=item "$c"

Return a string representation of the content.

=item @{$c}

Return a list of Dpkg::Control objects, the first one is corresponding to
source information and the following ones are the binary packages
information.

=back

=head1 CHANGES

=head2 Version 1.01 (dpkg 1.18.0)

New argument: The $c->new() constructor accepts an %opts argument.

=head2 Version 1.00 (dpkg 1.15.6)

Mark the module as public.

=cut

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