X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=dh_builddeb;h=bf9fc27d39aafdfb2c42545cd5cd213158b42b30;hb=18a0da8092ea9f3dc48bca92b36f592af25a608d;hp=45713fd946a64af09c61e78914b1ddbcad4edde4;hpb=86b14713761d1794c6fe6d90558db65dfba654ce;p=debhelper.git

diff --git a/dh_builddeb b/dh_builddeb
index 45713fd..bf9fc27 100755
--- a/dh_builddeb
+++ b/dh_builddeb
@@ -2,7 +2,7 @@
 
 =head1 NAME
 
-dh_builddeb - build debian binary packages
+dh_builddeb - build Debian binary packages
 
 =cut
 
@@ -15,30 +15,36 @@ B<dh_builddeb> [S<I<debhelper options>>] [B<--destdir=>I<directory>] [B<--filena
 
 =head1 DESCRIPTION
 
-dh_builddeb simply calls L<dpkg-deb(8)> to build a debian package or
+B<dh_builddeb> simply calls L<dpkg-deb(1)> to build a Debian package or
 packages.
 
+It supports building multiple binary packages in parallel, when enabled by
+DEB_BUILD_OPTIONS.
+
 =head1 OPTIONS
 
 =over 4
 
 =item B<--destdir=>I<directory>
 
-Use this if you want the generated .deb files to be put in a directory
-other than the default of ".."
+Use this if you want the generated F<.deb> files to be put in a directory
+other than the default of "F<..>".
 
 =item B<--filename=>I<name>
 
 Use this if you want to force the generated .deb file to have a particular
 file name. Does not work well if more than one .deb is generated!
 
-=item B<-u>I<params>
-
 =item B<--> I<params>
 
 Pass I<params> to L<dpkg-deb(1)> when it is used to build the
 package.
 
+=item B<-u>I<params>
+
+This is another way to pass I<params> to L<dpkg-deb(1)>.
+It is deprecated; use B<--> instead.
+
 =back
 
 =cut
@@ -60,7 +66,32 @@ else {
 	$dh{FILENAME}="/$dh{FILENAME}";
 }
 
+my $max_procs=get_buildoption("parallel") || 1;
+
+my $processes=1;
+my $exit=0;
+sub reap {
+	if (wait == -1) {
+		$processes=0;
+	}
+	else {
+		$processes--;
+		$exit=1 if $? != 0;
+	}
+}
+
 foreach my $package (@{$dh{DOPACKAGES}}) {
+	my $pid=fork();
+	if (! defined $pid) {
+		error("fork failed! $!");
+	}
+	if ($pid) { # parent
+		$processes++;
+		reap while $processes > $max_procs;
+		next;
+	}
+
+	# child
 	my $tmp=tmpdir($package);
 	if (exists $ENV{DH_ALWAYS_EXCLUDE} && length $ENV{DH_ALWAYS_EXCLUDE}) {
 		if (! compat(5)) {
@@ -81,10 +112,15 @@ foreach my $package (@{$dh{DOPACKAGES}}) {
 		if (! $filename) {
 			$filename="/".udeb_filename($package);
 		}
-		doit("dpkg-deb", @{$dh{U_PARAMS}}, "--build", $tmp, $dh{DESTDIR}.$filename);
+		doit("dpkg-deb", "-z1", "-Zxz", "-Sextreme",
+			@{$dh{U_PARAMS}}, "--build", $tmp, $dh{DESTDIR}.$filename);
 	}
+	exit 0;
 }
 
+reap while $processes;
+exit $exit;
+
 =head1 SEE ALSO
 
 L<debhelper(7)>