VERSION		:= 3.3.0

sysconfdir	?= /etc/mkinitfs
datarootdir	?= /usr/share
datadir		?= $(datarootdir)/mkinitfs

SBIN_FILES	:= mkinitfs bootchartd nlplug-findfs
SHARE_FILES	:= initramfs-init fstab passwd group
CONF_FILES	:= mkinitfs.conf \
		features.d/ata.modules \
		features.d/base.files \
		features.d/base.modules \
		features.d/bootchart.files \
		features.d/btrfs.files \
		features.d/btrfs.modules \
		features.d/cdrom.modules \
		features.d/cramfs.modules \
		features.d/cryptkey.files \
		features.d/cryptsetup.files \
		features.d/cryptsetup.modules \
		features.d/ena.modules \
		features.d/ext2.modules \
		features.d/ext3.modules \
		features.d/ext4.modules \
		features.d/f2fs.modules \
		features.d/floppy.modules \
		features.d/gfs2.modules \
		features.d/jfs.modules \
		features.d/keymap.files \
		features.d/kms.modules \
		features.d/lvm.files \
		features.d/lvm.modules \
		features.d/mmc.modules \
		features.d/nbd.files \
		features.d/nbd.modules \
		features.d/network.files \
		features.d/network.modules \
		features.d/nvme.modules \
		features.d/ocfs2.modules \
		features.d/raid.files \
		features.d/raid.modules \
		features.d/reiserfs.modules \
		features.d/scsi.modules \
		features.d/squashfs.modules \
		features.d/ubifs.modules \
		features.d/usb.modules \
		features.d/virtio.modules \
		features.d/xfs.files \
		features.d/xfs.modules \
		features.d/zfs.files \
		features.d/zfs.modules \
		features.d/qeth.modules \
		features.d/dasd_mod.modules

SCRIPTS		:= mkinitfs bootchartd initramfs-init
IN_FILES	:= $(addsuffix .in,$(SCRIPTS))

GIT_REV := $(shell test -d .git && git describe || echo exported)
ifneq ($(GIT_REV), exported)
FULL_VERSION    := $(patsubst $(PACKAGE)-%,%,$(GIT_REV))
FULL_VERSION    := $(patsubst v%,%,$(FULL_VERSION))
else
FULL_VERSION    := $(VERSION)
endif


DISTFILES	:= $(IN_FILES) $(CONF_FILES) Makefile

INSTALL		:= install
SED		:= sed
SED_REPLACE	:= -e 's:@VERSION@:$(FULL_VERSION):g' \
		-e 's:@sysconfdir@:$(sysconfdir):g' \
		-e 's:@datadir@:$(datadir):g'

DEFAULT_FEATURES ?= ata base cdrom ext4 keymap kms mmc raid scsi usb virtio
ifeq ($(shell uname -m), s390x)
DEFAULT_FEATURES += qeth dasd_mod
endif


all:	$(SBIN_FILES) $(SCRIPTS) $(CONF_FILES)

clean:
	rm -f $(SCRIPTS) mkinitfs.conf

help:
	@echo mkinitfs $(VERSION)
	@echo "usage: make install [DESTDIR=]"

CFLAGS ?= -Wall -Werror -g
CFLAGS += -D_GNU_SOURCE -DDEBUG

PKGCONF		?= pkg-config
BLKID_CFLAGS	:= $(shell $(PKGCONF) --cflags blkid)
BLKID_LIBS	:= $(shell $(PKGCONF) --libs blkid)
LIBKMOD_CFLAGS	:= $(shell $(PKGCONF) --cflags libkmod)
LIBKMOD_LIBS	:= $(shell $(PKGCONF) --libs libkmod)
CRYPTSETUP_CFLAGS := $(shell $(PKGCONF) --cflags libcryptsetup)
CRYPTSETUP_LIBS	:= $(shell $(PKGCONF) --libs libcryptsetup)

CFLAGS		+= $(BLKID_CFLAGS) $(LIBKMOD_CFLAGS) $(CRYPTSETUP_CFLAGS)
LIBS		= $(BLKID_LIBS) $(LIBKMOD_LIBS) $(CRYPTSETUP_LIBS)

%.o: %.c
	$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ -c $<

nlplug-findfs: nlplug-findfs.o
	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)

.SUFFIXES:	.in
.in:
	${SED} ${SED_REPLACE} ${SED_EXTRA} $< > $@

install: $(SBIN_FILES) $(SHARE_FILES) $(CONF_FILES)
	for i in $(SBIN_FILES); do \
		$(INSTALL) -Dm755 $$i $(DESTDIR)/sbin/$$i;\
	done
	for i in $(CONF_FILES); do \
		$(INSTALL) -Dm644 $$i $(DESTDIR)/etc/mkinitfs/$$i;\
	done
	for i in $(SHARE_FILES); do \
		$(INSTALL) -D $$i $(DESTDIR)/usr/share/mkinitfs/$$i;\
	done

mkinitfs.conf:
	echo 'features="$(DEFAULT_FEATURES)"' > $@