summaryrefslogtreecommitdiff
path: root/Debian/Debhelper/Dh_Buildsystems.pm
diff options
context:
space:
mode:
Diffstat (limited to 'Debian/Debhelper/Dh_Buildsystems.pm')
-rw-r--r--Debian/Debhelper/Dh_Buildsystems.pm186
1 files changed, 186 insertions, 0 deletions
diff --git a/Debian/Debhelper/Dh_Buildsystems.pm b/Debian/Debhelper/Dh_Buildsystems.pm
new file mode 100644
index 0000000..d79034b
--- /dev/null
+++ b/Debian/Debhelper/Dh_Buildsystems.pm
@@ -0,0 +1,186 @@
+# 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 File::Spec;
+
+use base 'Exporter';
+our @EXPORT=qw(&buildsystems_init &buildsystems_do &load_buildsystem &load_all_buildsystems);
+
+# 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_sourcedir;
+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;
+ }
+ if (!exists $bsopts{sourcedir} && defined $opt_sourcedir) {
+ $bsopts{sourcedir} = ($opt_sourcedir eq "") ? undef : $opt_sourcedir;
+ }
+ return $module->new(%bsopts);
+}
+
+# Similar to create_buildsystem_instance(), but it attempts to autoselect
+# a buildsystem if none was specified. In case autoselection fails, undef
+# is returned.
+sub load_buildsystem {
+ my $system=shift;
+ my $step=shift;
+ 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, @_);
+ if ($inst->check_auto_buildable($step)) {
+ return $inst;
+ }
+ }
+ }
+ return;
+}
+
+sub load_all_buildsystems {
+ my $incs=shift || \@INC;
+ my (%buildsystems, @buildsystems);
+
+ for my $inc (@$incs) {
+ my $path = File::Spec->catdir($inc, "Debian/Debhelper/Buildsystem");
+ if (-d $path) {
+ for my $module_path (glob "$path/*.pm") {
+ my $name = basename($module_path);
+ $name =~ s/\.pm$//;
+ next if exists $buildsystems{$name};
+ $buildsystems{$name} = create_buildsystem_instance($name, @_);
+ }
+ }
+ }
+
+ # Push debhelper built-in buildsystems first
+ for my $name (@BUILDSYSTEMS) {
+ error("Debhelper built-in buildsystem '$name' could not be found/loaded")
+ if not exists $buildsystems{$name};
+ push @buildsystems, $buildsystems{$name};
+ delete $buildsystems{$name};
+ }
+
+ # The rest are 3rd party buildsystems
+ for my $name (keys %buildsystems) {
+ my $inst = $buildsystems{$name};
+ $inst->{thirdparty} = 1;
+ push @buildsystems, $inst;
+ }
+
+ return @buildsystems;
+}
+
+sub buildsystems_init {
+ my %args=@_;
+
+ # Available command line options
+ my %options = (
+ "d" => undef, # cancel default D_FLAG option spec
+ "d=s" => \$opt_sourcedir,
+ "sourcedirectory=s" => \$opt_sourcedir,
+
+ "b:s" => \$opt_builddir,
+ "builddirectory:s" => \$opt_builddir,
+
+ "c=s" => \$opt_buildsys,
+ "buildsystem=s" => \$opt_buildsys,
+
+ "l" => \$opt_list,
+ "--list" => \$opt_list,
+ );
+ $args{options}{$_} = $options{$_} foreach keys(%options);
+
+ # Pass options from the DH_AUTO_OPTIONS environment variable
+ if (defined $ENV{DH_AUTO_OPTIONS}) {
+ $args{extra_args} = $ENV{DH_AUTO_OPTIONS};
+ }
+ Debian::Debhelper::Dh_Lib::init(%args);
+}
+
+sub buildsystems_list {
+ my $step=shift;
+
+ # List buildsystems (including auto and specified status)
+ my ($auto, $specified);
+ my @buildsystems = load_all_buildsystems(undef);
+ for my $inst (@buildsystems) {
+ 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->{thirdparty} && $inst->check_auto_buildable($step)) {
+ $auto = $inst->NAME();
+ }
+ printf("%s - %s", $inst->NAME(), $inst->DESCRIPTION());
+ print " [3rd party]" if $inst->{thirdparty};
+ print "\n";
+ }
+ 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 $step=shift;
+
+ if (!defined $step) {
+ $step = basename($0);
+ $step =~ s/^dh_auto_//;
+ }
+
+ if (grep(/^\Q$step\E$/, qw{configure build test install clean}) == 0) {
+ error("unrecognized build step: " . $step);
+ }
+
+ if ($opt_list) {
+ buildsystems_list($step);
+ exit 0;
+ }
+
+ my $buildsystem = load_buildsystem($opt_buildsys, $step);
+ if (defined $buildsystem) {
+ $buildsystem->pre_building_step($step);
+ $buildsystem->$step(@_, @{$dh{U_PARAMS}});
+ $buildsystem->post_building_step($step);
+ }
+ return 0;
+}
+
+1;