packaging: Update infrastructure

The Makefile.dist-packaging lives canonically in rpm-ostree/ for now,
it's my latest hack to automate git -> (s)rpm.

Update the spec.in from current Fedora.

Makefile.dist-packaging

@@ -0,0 +1,39 @@
+# -*- mode: Makefile -*-
+
+GITREV = $$(git describe --always --tags)
+GITREV_FOR_PKG = $(shell echo "$(GITREV)" | sed -e 's,-,\.,g' -e 's,^v,,')
+
+srcdir=$(shell pwd)
+PACKAGE=$(shell basename $(srcdir))
+
+PKG_VER = $(PACKAGE)-$(GITREV_FOR_PKG)
+
+dist-snapshot:
+	set -x; \
+	echo "PACKAGE=$(PACKAGE)"; \
+	TARFILE_TMP=$(PKG_VER).tar.tmp; \
+	echo "Archiving $(PACKAGE) at $(GITREV)"; \
+	(cd $(srcdir); git archive --format=tar --prefix=$(PKG_VER)/ $(GITREV)) > $${TARFILE_TMP}; \
+	(cd $$(git rev-parse --show-toplevel); git submodule status) | while read line; do \
+	  rev=$$(echo $$line | cut -f 1 -d ' '); path=$$(echo $$line | cut -f 2 -d ' '); \
+	  echo "Archiving $${path} at $${rev}"; \
+	  (cd $(srcdir)/$$path; git archive --format=tar --prefix=$(PKG_VER)/$$path/ $${rev}) > submodule.tar; \
+	  tar -A -f $${TARFILE_TMP} submodule.tar; \
+	  rm submodule.tar; \
+	done; \
+	mv $(PKG_VER).tar{.tmp,}; \
+	rm -f $(PKG_VER).tar.xz; \
+	xz $(PKG_VER).tar 
+
+srpm: dist-snapshot
+	(cd $(srcdir)/packaging; \
+	 cp ../$(PKG_VER).tar.xz . ; \
+	 sed -e "s,^Version:.*,Version: $(GITREV_FOR_PKG)," $(PACKAGE).spec.in > $(PACKAGE).spec; \
+	 ./rpmbuild-cwd -bs $(PACKAGE).spec)
+
+rpm: srpm
+	$(srcdir)/packaging/rpmbuild-cwd --rebuild packaging/$(PKG_VER)*.src.rpm
+
+buildinstall: rpm
+	sudo yum localinstall $(PKG_VER)*.src.rpm
+