add PKGBUILD, upd DEB builder

packaging/debian/Makefile

@@ -0,0 +1,29 @@
+DOCKER_CMD ?= docker
+DOCKER_IMG = computebuilder:debian-bookworm
+BUILDDIR = build
+KEEP_BUILDFILES ?=
+
+all: docker-build build
+
+clean:
+	test -d $(BUILDDIR) && rm -rf $(BUILDDIR) || true
+
+docker-build:
+	$(DOCKER_CMD) build -f Dockerfile -t $(DOCKER_IMG) .
+
+build: clean
+	mkdir -p $(BUILDDIR)
+	cp -v ../../dist/compute-*[.tar.gz] $(BUILDDIR)/
+	cp -r ../../docs $(BUILDDIR)/
+	cp ../../extra/completion.bash $(BUILDDIR)/compute.bash-completion
+	if [ -f build.sh.bak ]; then mv build.sh{.bak,}; fi
+	cp build.sh{,.bak}
+	awk '/authors/{gsub(/[\[\]]/,"");print $$3" "$$4}' ../pyproject.toml \
+		| sed "s/['<>]//g" \
+		| tr ' ' '\n' \
+		| xargs -I {} sed "0,/%placeholder%/s//{}/" -i build.sh
+	$(DOCKER_CMD) run --rm -i -v $$PWD:/mnt $(DOCKER_IMG) bash < build.sh
+	mv build.sh{.bak,}
+	# Remove unwanted files from build dir
+	find $(BUILDDIR) -mindepth 1 -type d -exec rm -rf {} +
+	[ -z $(KEEP_BUILDFILES) ] && find $(BUILDDIR) ! -name '*.deb' -type f -exec rm -f {} + || true