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# Copyright © 2020-2024 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/>.
=encoding utf8
=head1 NAME
Dpkg::BuildDriver - drive the build of a Debian package
=head1 DESCRIPTION
This class is used by dpkg-buildpackage to drive the build of a Debian
package.
B<Note>: This is a private module, its API can change at any time.
=cut
package Dpkg::BuildDriver 0.01;
use strict;
use warnings;
use Dpkg ();
use Dpkg::Gettext;
use Dpkg::ErrorHandling;
=head1 METHODS
=over 4
=item $bd = Dpkg::BuildDriver->new(%opts)
Create a new Dpkg::BuildDriver object.
It will load a build driver module as requested in the B<Build-Drivers> field
in the $opts{ctrl} L<Dpkg::Control::Info> object or if not present,
it will fall back to load the default B<debian-rules> driver.
Supported or required options are:
=over
=item B<ctrl> (required)
A L<Dpkg::Control::Info> object.
=item B<root_cmd>
A string with the gain-root-command to use when needing to execute a command
with root-like rights.
If needed and unset, it will default to L<fakeroot> if it is available or
the module will error out.
=item B<as_root>
A boolean to force F<debian/rules> target calls as root-like, even if they
would normally not require to be executed as root-like.
This option is applied to all targets globally.
B<Note>: This option is only relevant for drivers that use F<debian/rules>.
=item B<debian_rules>
An array containing the command to execute the F<debian/rules> file and any
additional arguments.
It defaults to B<debian/rules>.
B<Note>: This option is only relevant for drivers that use F<debian/rules>.
=item B<rrr_override>
A string that overrides the B<Rules-Requires-Root> field value.
B<Note>: This option is only relevant for drivers that use F<debian/rules>.
=back
=cut
sub _load_driver {
my ($name, %opts) = @_;
# Normalize the driver name.
$name = join q{}, map { ucfirst lc } split /-/, $name;
my $driver;
eval qq{
require Dpkg::BuildDriver::$name;
\$driver = Dpkg::BuildDriver::$name->new(%opts);
};
error(g_('build driver %s is unknown: %s'), $name, $@) if $@;
return $driver;
}
sub new {
my ($this, %opts) = @_;
my $class = ref($this) || $this;
my $ctrl_src = $opts{ctrl}->get_source();
my $name = $ctrl_src->{'Build-Driver'} // 'debian-rules';
my $self = {
driver => _load_driver($name, %opts),
};
bless $self, $class;
return $self;
}
=item $bd->pre_check()
Perform build driver specific checks, before anything else.
This will run after the B<init> hook, and before C<dpkg-source --before-build>.
B<Note>: This is an optional method that can be omitted from the driver
implementation.
=cut
sub pre_check {
my $self = shift;
return unless $self->{driver}->can('pre_check');
return $self->{driver}->pre_check();
}
=item $bool = $bd->need_build_task($build_task, binary_task)
Returns whether we need to use the build task.
B<Note>: This method is needed as long as we support building as root-like.
Once that is not needed this method will be deprecated.
=cut
sub need_build_task {
my ($self, $build_task, $binary_task) = @_;
return $self->{driver}->need_build_task($build_task, $binary_task);
}
=item $bd->run_build_task($build_task, $binary_task)
Executes the build task for the build.
B<Note>: This is an optional method needed as long as we support building as
root-like.
Once that is not needed this method will be deprecated.
=cut
sub run_build_task {
my ($self, $build_task, $binary_task) = @_;
$self->{driver}->run_build_task($build_task, $binary_task);
return;
}
=item $bd->run_task($task)
Executes the given task for the build.
=cut
sub run_task {
my ($self, $task) = @_;
$self->{driver}->run_task($task);
return;
}
=back
=head1 CHANGES
=head2 Version 0.xx
This is a private module.
=cut
1;
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