1 files changed, 34 insertions, 0 deletions
diff --git a/lib/Debian/Debhelper/Sequence/single_binary.pm b/lib/Debian/Debhelper/Sequence/single_binary.pm
new file mode 100644
index 0000000..68d8db1
--- /dev/null
+++ b/lib/Debian/Debhelper/Sequence/single_binary.pm
@@ -0,0 +1,34 @@
+use strict;
+use warnings;
+
+use Debian::Debhelper::Dh_Lib qw(getpackages error warning tmpdir);
+use Debian::Debhelper::SequencerUtil;
+
+my @packages = getpackages();
+my $pkg = $packages[0];
+my $tmp = tmpdir($pkg);
+if (@packages != 1) {
+    warning('Detected multiple binary packages (Package paragraphs) in debian/control, which is incompatible');
+    warning('with the single-binary dh add-on.');
+    warning();
+    warning('Please:');
+    warning(' 1) Remove the single-binary add-on ("dh-sequence-single-binary" in Build-Depends)');
+    warning(' 2) Update the packaging to cope with dh_auto_install using \"debian/tmp\" as default dest dir');
+    warning("    (Previously, it would probably have used \"${tmp}\")");
+    warning(' 3) Add Breaks/Replaces if you are moving existing files into a new package.');
+    warning(' 4) Double check that the resulting binaries have content.');
+    warning();
+    warning("IF YOU ARE ADDING A TRANSITIONAL PACKAGE: Then you probably want to pass --destdir=${tmp} to");
+    warning('  dh_auto_install.  Most likely you will need Breaks + Replaces as renaming a package counts as');
+    warning('  moving files between two packages.');
+    warning();
+    warning('IF YOU ARE "SPLITTING" THE CONTENT INTO MULTIPLE PACKAGES: Then remember to install the content');
+    warning("  into them (by creating debian/${pkg}.install, etc.).  Also remember to add Breaks + Replaces if");
+    warning('  you are moving files from one package into another.');
+    warning();
+    error("The single-binary add-on cannot be used for source packages that build multiple binary packages.");
+}
+
+add_command_options('dh_auto_install', "--destdir=${tmp}/");
+
+1;