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-rw-r--r--Debian/Debhelper/Dh_Buildsystems.pm147
1 files changed, 147 insertions, 0 deletions
diff --git a/Debian/Debhelper/Dh_Buildsystems.pm b/Debian/Debhelper/Dh_Buildsystems.pm
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+++ b/Debian/Debhelper/Dh_Buildsystems.pm
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+# A module for loading and managing debhelper buildsystem plugins.
+# This module is intended to be used by all dh_auto_* helper commands.
+#
+# Copyright: © 2009 Modestas Vainius
+# License: GPL-2+
+
+package Debian::Debhelper::Dh_Buildsystems;
+
+use strict;
+use warnings;
+use Debian::Debhelper::Dh_Lib;
+
+use base 'Exporter';
+our @EXPORT=qw(&buildsystems_init &buildsystems_do &load_buildsystem);
+
+# Historical order must be kept for backwards compatibility. New
+# buildsystems MUST be added to the END of the list.
+our @BUILDSYSTEMS = (
+ "autoconf",
+ "perl_makemaker",
+ "makefile",
+ "python_distutils",
+ "perl_build",
+ "cmake",
+);
+
+my $opt_buildsys;
+my $opt_builddir;
+my $opt_list;
+
+sub create_buildsystem_instance {
+ my $system=shift;
+ my %bsopts=@_;
+ my $module = "Debian::Debhelper::Buildsystem::$system";
+
+ eval "use $module";
+ if ($@) {
+ error("unable to load buildsystem class '$system': $@");
+ }
+
+ if (!exists $bsopts{builddir} && defined $opt_builddir) {
+ $bsopts{builddir} = ($opt_builddir eq "") ? undef : $opt_builddir;
+ }
+ return $module->new(%bsopts);
+}
+
+sub load_buildsystem {
+ my ($action, $system)=@_;
+ if (defined $system) {
+ my $inst = create_buildsystem_instance($system);
+ return $inst;
+ }
+ else {
+ # Try to determine build system automatically
+ for $system (@BUILDSYSTEMS) {
+ my $inst = create_buildsystem_instance($system, build_action=>$action);
+ if ($inst->is_buildable()) {
+ return $inst;
+ }
+ }
+ }
+ return;
+}
+
+sub buildsystems_init {
+ my %args=@_;
+
+ # TODO: Not documented in the manual pages yet.
+ # Initialize options from environment variables
+ if (exists $ENV{DH_AUTO_BUILDDIRECTORY}) {
+ $opt_builddir = $ENV{DH_AUTO_BUILDDIRECTORY};
+ }
+ if (exists $ENV{DH_AUTO_BUILDSYSTEM}) {
+ $opt_buildsys = $ENV{DH_AUTO_BUILDSYSTEM};
+ }
+
+ # Available command line options
+ my %options = (
+ "b:s" => \$opt_builddir,
+ "builddirectory:s" => \$opt_builddir,
+
+ "m=s" => \$opt_buildsys,
+ "buildsystem=s" => \$opt_buildsys,
+
+ "l" => \$opt_list,
+ "--list" => \$opt_list,
+ );
+ map { $args{options}{$_} = $options{$_} } keys(%options);
+ Debian::Debhelper::Dh_Lib::init(%args);
+}
+
+sub buildsystems_list {
+ my $action=shift;
+
+ # List buildsystems (including auto and specified status)
+ my ($auto, $specified);
+ for my $system (@BUILDSYSTEMS) {
+ my $inst = create_buildsystem_instance($system, build_action => undef);
+ my $is_specified = defined $opt_buildsys && $opt_buildsys eq $inst->NAME();
+ if (! defined $specified && defined $opt_buildsys && $opt_buildsys eq $inst->NAME()) {
+ $specified = $inst->NAME();
+ }
+ elsif (! defined $auto && $inst->check_auto_buildable($action)) {
+ $auto = $inst->NAME();
+ }
+ printf("%s - %s\n", $inst->NAME(), $inst->DESCRIPTION());
+ }
+ # List a specified 3rd party buildsystem too.
+ if (! defined $specified && defined $opt_buildsys) {
+ my $inst = create_buildsystem_instance($opt_buildsys, build_action => undef);
+ printf("%s - %s.\n", $inst->NAME(), $inst->DESCRIPTION());
+ $specified = $inst->NAME();
+ }
+ print "\n";
+ print "Auto-selected: $auto\n" if defined $auto;
+ print "Specified: $specified\n" if defined $specified;
+ print "No system auto-selected or specified\n"
+ if ! defined $auto && ! defined $specified;
+}
+
+sub buildsystems_do {
+ my $action=shift;
+
+ if (!defined $action) {
+ $action = basename($0);
+ $action =~ s/^dh_auto_//;
+ }
+
+ if (grep(/^\Q$action\E$/, qw{configure build test install clean}) == 0) {
+ error("unrecognized build action: " . $action);
+ }
+
+ if ($opt_list) {
+ buildsystems_list($action);
+ exit 0;
+ }
+
+ my $buildsystem = load_buildsystem($action, $opt_buildsys);
+ if (defined $buildsystem) {
+ $buildsystem->pre_action($action);
+ $buildsystem->$action(@_, @{$dh{U_PARAMS}});
+ $buildsystem->post_action($action);
+ }
+ return 0;
+}
+
+1;