build: add rpm packaging files.

dists/build.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+# Build the package for Archlinux/openSUSE/Debian/Ubuntu
+# Copyright (C) 2022 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+# Usage: make [ dpkg | pkg | rpm ]
+
+set -eu -o pipefail
+
+readonly COMMAND="$1"
+readonly PKGNAME=apparmor.d
+VERSION="0.$(git rev-list --count HEAD)"
+readonly VERSION
+
+main() {
+    case "$COMMAND" in
+    pkg)
+        PKGDEST=. makepkg --syncdeps --force --cleanbuild --noconfirm --noprogressbar
+        ;;
+
+    dpkg)
+        dch --newversion="$VERSION-1" --urgency=medium --distribution=stable --controlmaint "Release $VERSION-1"
+        dpkg-buildpackage -b -d --no-sign
+        mv ../"${PKGNAME}_${VERSION}-1"_*.deb .
+        ;;
+
+    rpm)
+        RPMBUILD_ROOT=$(mktemp -d)
+        OUTPUT_DIR=$(pwd)
+        ARCH=$(uname -m)
+        readonly RPMBUILD_ROOT ARCH OUTPUT_DIR
+
+        mkdir -p "$RPMBUILD_ROOT"/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS/tmp}
+        cp -p "dists/$PKGNAME.spec" "$RPMBUILD_ROOT/SPECS"
+        tar -czf "$RPMBUILD_ROOT/SOURCES/$PKGNAME-$VERSION.tar.gz" --transform "s,^,$PKGNAME-$VERSION/," ./*
+
+        cd "$RPMBUILD_ROOT"
+        sed -i "s/^Version:.*/Version:        $VERSION/" "SPECS/$PKGNAME.spec"
+        rpmbuild -bb --define "_topdir $RPMBUILD_ROOT" "SPECS/$PKGNAME.spec"
+
+        cp "$RPMBUILD_ROOT/RPMS/$ARCH/"*.rpm "$OUTPUT_DIR"
+        rm -rf "$RPMBUILD_ROOT"
+        ;;
+
+    *) ;;
+    esac
+}
+
+main "$@"