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# A buildsystem plugin for handling simple Makefile based projects.
#
# Copyright: © 2008 Joey Hess
# © 2008-2009 Modestas Vainius
# License: GPL-2+
package Debian::Debhelper::Buildsystem::makefile;
use strict;
use Debian::Debhelper::Dh_Lib;
use Debian::Debhelper::Dh_Buildsystem_Bases;
use base 'Debian::Debhelper::Dh_Buildsystem_Chdir';
# XXX JEH I *like* this. Yay for factoring out ugly ugly stuff!
sub _exists_make_target {
my ($cls, $target) = @_;
# Use make -n to check to see if the target would do
# anything. There's no good way to test if a target exists.
my $ret=`$ENV{MAKE} -s -n $target 2>/dev/null`;
chomp $ret;
return length($ret);
}
sub _make_first_existing_target {
my $cls = shift;
my $targets = shift;
# XXX JEH setting this env var is dodgy,
# probably better to test if it exists with a default value.
# (Factor out to helper function?)
$ENV{MAKE}="make" unless exists $ENV{MAKE};
foreach my $target (@$targets) {
if ($cls->_exists_make_target($target)) {
doit($ENV{MAKE}, $target, @_);
return $target;
}
}
return undef;
}
sub DESCRIPTION {
"support for building Makefile based packages (make && make install)"
}
sub is_buildable {
my $self=shift;
my ($action) = @_;
if (grep /^\Q$action\E$/, qw{build test install clean}) {
# XXX JEH why does get_buildpath need to be used
# here? is_buildable is run at the top of the source
# directory, so -e 'Makefile' should be the same
return -e $self->get_buildpath("Makefile") ||
-e $self->get_buildpath("makefile") ||
-e $self->get_buildpath("GNUmakefile");
} else {
# XXX JEH why return 1 here?
return 1;
}
}
sub build_impl {
my $self=shift;
doit(exists $ENV{MAKE} ? $ENV{MAKE} : "make", @_);
}
sub test_impl {
my $self=shift;
$self->_make_first_existing_target(['test', 'check'], @_);
}
sub install_impl {
my $self=shift;
my $destdir=shift;
# XXX JEH again with the setting the env var, see above..
$ENV{MAKE}="make" unless exists $ENV{MAKE};
my @params="DESTDIR=$destdir";
# Special case for MakeMaker generated Makefiles.
# XXX JEH This is a really unfortunate breaking of the
# encapsulation of the perl_makefile module. Perhaps it would be
# better for that module to contain some hack that injects that
# test into this one?
if (-e "Makefile" &&
system('grep -q "generated automatically by MakeMaker" Makefile') == 0) {
push @params, "PREFIX=/usr";
}
$self->_make_first_existing_target(['install'], @params, @_);
}
sub clean_impl {
my $self=shift;
$self->_make_first_existing_target(['distclean', 'realclean', 'clean'], @_);
}
1;
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