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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 base 'Debian::Debhelper::Dh_Buildsystem_Basic';
sub get_makecmd_C {
my $self=shift;
if ($self->get_builddir()) {
return $self->{makecmd} . " -C " . $self->get_builddir();
}
return $self->{makecmd};
}
# XXX JEH I *like* this. Yay for factoring out ugly ugly stuff!
# XXX MDX TODO: this could use dh debian/rules parser.
# XXX JEH That one checks for explicit only targets, while we want
# implicit targets here too. I think the current code is ok;
# it's a bonus that it checks if the target it empty.
# Hmm, one problem is that if a target exists but will run no
# commands since it's already built, the approach below will return
# nothing and assume it doesn't exist.
sub exists_make_target {
my ($self, $target) = @_;
my $makecmd=$self->get_makecmd_C();
# 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 $ret=`$makecmd -s -n $target 2>/dev/null`;
chomp $ret;
return length($ret);
}
sub make_first_existing_target {
my $self=shift;
my $targets=shift;
foreach my $target (@$targets) {
if ($self->exists_make_target($target)) {
$self->doit_in_builddir($self->{makecmd}, $target, @_);
return $target;
}
}
return undef;
}
sub DESCRIPTION {
"support for building Makefile based packages (make && make install)"
}
sub new {
my $cls=shift;
my $self=$cls->SUPER::new(@_);
$self->{makecmd} = (exists $ENV{MAKE}) ? $ENV{MAKE} : "make";
return $self;
}
sub is_auto_buildable {
my $self=shift;
my ($action) = @_;
# Handles build, test, install, clean; configure - next class
if (grep /^\Q$action\E$/, qw{build test install clean}) {
# This is always called in the source directory, but generally
# Makefiles are created (or live) in the the build directory.
return -e $self->get_buildpath("Makefile") ||
-e $self->get_buildpath("makefile") ||
-e $self->get_buildpath("GNUmakefile");
}
return 0;
}
sub build {
my $self=shift;
$self->doit_in_builddir($self->{makecmd}, @_);
}
sub test {
my $self=shift;
$self->make_first_existing_target(['test', 'check'], @_);
}
sub install {
my $self=shift;
my $destdir=shift;
$self->make_first_existing_target(['install'], "DESTDIR=$destdir", @_);
}
sub clean {
my $self=shift;
if (!$self->clean_builddir()) {
$self->make_first_existing_target(['distclean', 'realclean', 'clean'], @_);
}
}
1;
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