SHELL:=/bin/bash # Use bash syntax, mitigates dash's printf on Debian
ver:=$(shell git describe --dirty --long --match='v[0-9]*.[0-9]*' | cut -c 2- | cut -d - -f 1,2,4)
rpm_ver:=$(firstword $(subst -, ,$(ver)))
name_rev:=$(subst $(rpm_ver)-,,$(ver))
rpm_rev:=$(subst -,_,$(name_rev))


help:
	@echo
	@echo "▍Help"
	@echo "▀▀▀▀▀▀"
	@echo
	@echo "Available targets:"
	@echo "    dist:               Create source distribution package in dist/."
	@echo "    rpm:                Create an RPM package."
	@echo "    podman_rpm          Create an RPM package using podman on MacOS."
	@echo "    changelog:          Add a changelog entry to gwebu-profile.spec.in."
	@echo "    check:              Run shellcheck on all shell scripts."
	@echo "    fmt:                Format all shell scripts with shfmt."
	@echo
	@echo "    clean:              Clean all generated files."
	@echo
	@echo "Version $(ver), rpm_ver=$(rpm_ver), rpm_rev=$(rpm_rev)."
.PHONY: help


.PHONY: dist
dist: dist/profile.d-$(ver).tar.xz


dist/profile.d-$(ver).tar.xz:
	test -d dist || mkdir dist
	sed 's/^Version: .*/Version: $(rpm_ver)/' < gwebu-profile.spec.in \
		| sed 's/^Release: .*/Release: $(rpm_rev)/' \
		> gwebu-profile.spec
	git archive --prefix="profile.d-$(ver)/" --add-file=gwebu-profile.spec HEAD | xz -9 > "$@"
	rm gwebu-profile.spec


.PHONY: rpm
rpm: dist
	rpmbuild -ta "dist/profile.d-$(ver).tar.xz"


.PHONY: changelog
changelog:
	./changelog.sh


.PHONY: check
check:
	shellcheck --shell=bash --external-sources --source-path=etc/profile.d *.sh etc/profile.d/*.sh
	rpmlint *.spec.in


.PHONY: fmt
fmt:
	shfmt -w -i 4 -ci *.sh etc/profile.d/*.sh


.PHONY: clean
clean:
	rm -rf dist


.PHONY: podman_rpm
podman_rpm: dist
	podman buildx build -t podman_rpm_build -f Dockerfile-build .  # --platform linux/amd64
	# Extract the RPMs from the container to ./dist/ locally.
	podman run --rm -d --name=build localhost/podman_rpm_build /usr/bin/bash -c "trap : TERM INT; sleep infinity & wait"
	podman cp build:/tmp/RPMS/. ./dist/
	podman stop build
	podman image rm localhost/podman_rpm_build