Add a build-profile to disable Python 2 packages

We can't remove them yet (see the blocking bugs of #936371) but at least
we can start to clear a path to doing so.

3 files changed, 28 insertions, 6 deletions

diff --git a/debian/changelog b/debian/changelog
index dab36c2..089805a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -8,6 +8,9 @@ dbus-python (1.2.8-4) UNRELEASED; urgency=medium
     and python-all-dev. Only build for the default version of Python 2,
     not for all versions of Python 2 (in practice this has meant the
     same thing since 2.6 was de-supported in 2013).
+  * Add a build-profile to disable Python 2 packages.
+    We can't remove them yet (see the blocking bugs of #936371) but at
+    least we can start to clear a path to doing so.
 
  -- Simon McVittie <smcv@debian.org>  Sun, 23 Jun 2019 19:19:02 +0100
 
diff --git a/debian/control b/debian/control
index 83cea70..05b9906 100644
--- a/debian/control
+++ b/debian/control
@@ -14,13 +14,15 @@ Build-Depends:
  dbus (>= 1.8),
  debhelper (>= 11~),
  dh-python,
+ dh-sequence-python2 <!pkg.dbus-python.nopython2>,
+ dh-sequence-python3,
  dpkg-dev (>= 1.16.1),
  libdbus-1-dev (>= 1.8),
  libglib2.0-dev (>= 2.40),
- python2-dbg,
- python2-dev,
- python-gi,
- python-tap,
+ python2-dbg <!pkg.dbus-python.nopython2>,
+ python2-dev <!pkg.dbus-python.nopython2>,
+ python-gi <!pkg.dbus-python.nopython2>,
+ python-tap <!pkg.dbus-python.nopython2>,
  python3-all-dbg,
  python3-all-dev,
  python3-gi,
@@ -38,6 +40,7 @@ Vcs-Browser: https://salsa.debian.org/debian/dbus-python
 Testsuite: autopkgtest-pkg-python
 
 Package: python-dbus
+Build-Profiles: <!pkg.dbus-python.nopython2>
 Section: python
 Architecture: any
 Depends:
@@ -69,6 +72,7 @@ Description: simple interprocess messaging system (Python interface)
  See the dbus description for more information about D-Bus in general.
 
 Package: python-dbus-dbg
+Build-Profiles: <!pkg.dbus-python.nopython2>
 Section: debug
 Architecture: any
 Depends:
@@ -118,6 +122,7 @@ Description: Documentation for the D-Bus Python interface
  python-dbus and python3-dbus packages.
 
 Package: python-dbus-tests
+Build-Profiles: <!pkg.dbus-python.nopython2>
 Section: python
 Architecture: any
 Depends:
diff --git a/debian/rules b/debian/rules
index 43a3760..2e1f29a 100755
--- a/debian/rules
+++ b/debian/rules
@@ -4,18 +4,24 @@
 # Copyright © 2006 Sjoerd Simons <sjoerd@debian.org>
 # Copyright © 2012 Collabora Ltd.
 
+binaries := $(shell dh_listpackages)
+
 export DEB_BUILD_MAINT_OPTIONS = hardening=+bindnow
 
 include /usr/share/dpkg/default.mk
 
+ifneq ($(filter python-dbus,$(binaries)),)
 PYTHON2 := $(shell pyversions --default --version)
+else
+PYTHON2 :=
+endif
 PYTHON3 := $(shell py3versions --requested --version debian/control)
 PYDEFAULTVER := $(shell py3versions --default --version)
 
 FLAVOURS := $(patsubst %,%-dbg,$(PYTHON2) $(PYTHON3)) $(PYTHON2) $(PYTHON3)
 
 %:
-	dh $@ --with python2,python3,sphinxdoc --buildsystem=autoconf
+	dh $@ --with sphinxdoc --buildsystem=autoconf
 
 # The special case for 2.7-dbg is a workaround. Python 2 doesn't have the
 # LDVERSION sysconfig variable, which would give AX_PYTHON_DEVEL the
@@ -79,6 +85,7 @@ override_dh_auto_test-indep:
 	:
 
 override_dh_auto_install-arch:
+ifneq ($(filter python-dbus,$(binaries)),)
 	set -e; for x in $(PYTHON2); do \
 		PYTHON=/usr/bin/python$$x \
 		dh_auto_install \
@@ -107,6 +114,7 @@ override_dh_auto_install-arch:
 		install debian/tmp-dbg/usr/lib/python$$x/dist-packages/_dbus_glib_bindings.so \
 			debian/tmp/usr/lib/python$$x/dist-packages/_dbus_glib_bindings_d.so; \
 	done
+endif
 	set -e; for x in $(PYTHON3); do \
 		PYTHON=/usr/bin/python$$x \
 		dh_auto_install \
@@ -165,9 +173,11 @@ override_dh_installexamples:
 	dh_installexamples --remaining-packages
 
 override_dh_installdocs:
+ifneq ($(filter python-dbus,$(binaries)),)
 	dh_installdocs --link-doc=python-dbus -ppython-dbus-dbg
-	dh_installdocs --link-doc=python3-dbus -ppython3-dbus-dbg
 	dh_installdocs --doc-main-package=python-dbus -ppython-dbus
+endif
+	dh_installdocs --link-doc=python3-dbus -ppython3-dbus-dbg
 	dh_installdocs --doc-main-package=python-dbus-doc -ppython-dbus-doc
 	dh_installdocs --doc-main-package=python3-dbus -ppython3-dbus
 	dh_installdocs --remaining-packages
@@ -184,15 +194,19 @@ override_dh_missing:
 	dh_missing --fail-missing
 
 override_dh_strip:
+ifneq ($(filter python-dbus,$(binaries)),)
 	dh_strip --dbg-package=python-dbus-dbg -ppython-dbus -ppython-dbus-dbg -ppython-dbus-tests
+endif
 	dh_strip --dbg-package=python3-dbus-dbg -ppython3-dbus -ppython3-dbus-dbg -ppython3-dbus-tests
 
+ifneq ($(filter python-dbus,$(binaries)),)
 override_dh_python2:
 	dh_python2
 	set -e; for x in $(PYTHON2) $(patsubst %,%-dbg,$(PYTHON2)); do \
 		dh_python2 --shebang="/usr/bin/python$$x" \
 			/usr/lib/$(DEB_HOST_MULTIARCH)/installed-tests/dbus-python/python$$x; \
 	done
+endif
 
 override_dh_python3:
 	dh_python3