build: add stuff for building an rpm

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

Makefile.am

@@ -4,9 +4,24 @@ bin_PROGRAMS = containerfs
 
 ACLOCAL_AMFLAGS = -Im4
 
-EXTRA_DIST = m4/gnulib-cache.m4
+EXTRA_DIST = m4/gnulib-cache.m4 rpm/containerfs.spec.template autogen.sh
 
 containerfs_CFLAGS = -I . -I lib $(FUSE_CFLAGS)
 containerfs_LDFLAGS = $(FUSE_LIBS)
 containerfs_LDADD = lib/libgnu.a
 containerfs_SOURCES = main.c
+
+WD := $(shell pwd)
+
+containerfs.spec: $(srcdir)/rpm/containerfs.spec.template
+	sed -e 's|#VERSION#|$(VERSION)|g' < $< > $@
+
+rpm: dist-gzip containerfs.spec
+	echo $(VERSION)
+	$(MAKE) -C $(WD) dist-xz
+	rpmbuild -ba --define "_sourcedir $(WD)" --define "_specdir $(WD)" --define "_builddir $(WD)" --define "_srcrpmdir $(WD)" --define "_rpmdir $(WD)" --define "_buildrootdir $(WD)/.build" containerfs.spec
+
+srpm: dist-gzip containerfs.spec
+	echo $(VERSION)
+	$(MAKE) -C $(WD) dist-xz
+	rpmbuild -bs --define "_sourcedir $(WD)" --define "_specdir $(WD)" --define "_builddir $(WD)" --define "_srcrpmdir $(WD)" --define "_rpmdir $(WD)" --define "_buildrootdir $(WD)/.build" containerfs.spec

autogen.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+exec autoreconf -fis

rpm/containerfs.spec.template

@@ -0,0 +1,36 @@
+Summary: FUSE filesystem for containers.
+Name: containerfs
+Version: #VERSION#
+Release: 1%{?dist}
+Source0: %{url}/archive/%{name}-%{version}.tar.gz
+License: GPLv3+
+URL: https://github.com/giuseppe/containerfs
+
+# We always run autogen.sh
+BuildRequires: autoconf automake
+BuildRequires: gcc
+BuildRequires: python
+BuildRequires: git
+BuildRequires: gcc
+BuildRequires: automake
+BuildRequires: autoconf
+BuildRequires: fuse3-devel
+
+%description
+containerfs is a FUSE overlayfs implementation.
+
+%prep
+%autosetup -n %{name}-%{version}
+
+%build
+env NOCONFIGURE=1 ./autogen.sh
+%configure --disable-silent-rules
+
+%make_build
+
+%install
+%make_install INSTALL="install -p"
+
+%files
+%license COPYING
+%{_bindir}/%{name}