Makefile

# Iguana generation makefile

target_dir := ${DESTDIR}/usr/share/iguana
build_dir := out

kernel_filepath := $(shell find /boot \( -name 'vmlinuz-*' -o -name 'Image-*' \) | sort -r -V | head -1)

file_split := $(subst -, ,${kernel_filepath})
kernel_prefix := $(word 1, ${file_split})

kernel_file := $(notdir ${kernel_filepath})
kernel_version := $(subst ${kernel_prefix}-,,${kernel_filepath})

.PHONY: build
build: ${build_dir} ${build_dir}/iguana-initrd ${build_dir}/${kernel_file}
	@echo "All done"

${build_dir}:
	@mkdir ${build_dir}

${build_dir}/iguana-initrd:
	@echo "Generating initrd"
	dracut --force --no-hostonly --no-hostonly-cmdline      \
			--no-hostonly-default-device --no-hostonly-i18n \
			--no-machineid --reproducible --add iguana      \
			${build_dir}/iguana-initrd ${kernel_version}

${build_dir}/${kernel_file}:
	@echo "Collecting kernel used for initrd build"
	@cp ${kernel_filepath} ${build_dir}/${kernel_file}

install:
	install -d -m 755 ${target_dir}
	for f in ${build_dir}/*; do \
		install -m 644 $$f ${target_dir} ;\
	done

all: build install

check:
	lsinitrd -m ${target_dir}/iguana-initrd | grep -q iguana

clean:
	rm -r ${build_dir}