#
# Makefile to help build a customized RedHat Installation CD
#
# More information from http://256stuff.com/gray/docs/redhat_boot/
#

#
# This assumes that the Redhat CDs have been unloaded into the 'cdrom'
# directory in the current directory.  It also assumes you have a
# 'mnt' directory in the current directory with sub directories:
# 'floppy' and 'redhat'
#

KS = ks.cfg
INITRD = initrd.ext2
# files from the Redhat CDs
CDROM = cdrom
MOUNTS = mnt
FLOPPY = $(MOUNTS)/floppy
REDHAT = $(MOUNTS)/redhat
IMAGE_BOOT = dosutils/autoboot/cdboot.img
CDBOOT = $(CDROM)/$(IMAGE_BOOT)
HDLIST = $(CDROM)/RedHat/base/hdlist
RPMS = $(CDROM)/RedHat/RPMS

all :
	@ echo 'Enter "make cdr" to burn a cd-r'
	@ echo 'Enter "make cdrw" to burn a cd-rw'
	@ echo 'Enter "make cd_image" to make the CD image'
	@ echo 'Enter "make eject" to eject the cdrom'
	@ echo ''
	@ echo 'Enter "make ks" to install the ks.cfg into the cdboot.img'
	@ echo 'Enter "make editflop" to edit the floppy configs'
	@ echo 'Enter "make hdlist" to remake the cdrom hdlist files'
	@ echo 'Enter "make depend" to test the RPMs for any dependencies'

clean :
	rm -f $(KS)

cdr : $(KS) $(CDBOOT) $(HDLIST)
	@ test -w /boot/vmlinuz || ( echo "Must be root" ; false )
	mkisofs -b $(IMAGE_BOOT) -l -J -R -r -T -v -V 'RH Install' \
		$(CDROM) | \
		cdrecord -v $(BLANK) speed=8 dev=0,0,0 -

cd_image : $(KS) $(CDBOOT) $(HDLIST)
	rm -f $@ $@.t
	mkisofs -b $(IMAGE_BOOT) -l -J -R -r -T -v -V 'RH Install' \
		-o ../$@.t $(CDROM)
	mv $@.t $@

cdrw :
	make BLANK=blank=fast cdr

eject :
	@ test -w /boot/vmlinuz || ( echo "Must be root" ; false )
	cdrecord dev=0,0,0 -eject

$(CDBOOT) : $(KS)
	@ test -w /boot/vmlinuz || ( echo "Must be root" ; false )
	-mkdir $(MOUNTS) $(FLOPPY) $(REDHAT)
	rm -f $(INITRD) $(INITRD).gz
	mount -o loop -t msdos $@ $(FLOPPY)
	gzip -dc $(FLOPPY)/initrd.img > $(INITRD)
	mount -o loop -t ext2 $(INITRD) $(REDHAT)
	install -c -m 644 $(KS) $(REDHAT)/tmp
	umount -f $(REDHAT)
	gzip -9 $(INITRD)
	mv $(INITRD).gz $(FLOPPY)/initrd.img
	umount -f $(FLOPPY)
	touch $@

ks : $(CDBOOT)

editflop :
	@ test -w /boot/vmlinuz || ( echo "Must be root" ; false )
	mount -o loop -t msdos $(CDBOOT) $(FLOPPY)
	$(EDITOR) $(FLOPPY)
	cd $(FLOPPY) ; rm -f *~ \#*
	umount -f $(FLOPPY)

# NOTE: you cannot use $@.t here because genhdlist creates hdlist and hdlist2
$(HDLIST) : $(RPMS)
	genhdlist --withnumbers --hdlist $@ $(PWD)/$(CDROM)

hdlist : $(HDLIST)

# the mkdir testdb is designed to fail because I don't want to rm -rf
# it but it needs to be clean before we start.
depend : $(RPMS)
	@echo "Look for any 'is needed by' lines.  If you get none and you see"
	@echo "the 'Preparing' message, then you should be good.  I'm not sure"
	@echo "if there is a better way to test for success here."
	@echo ""
	@echo "Also, the testdb directory should be clear so if it exists, you"
	@echo "will have to 'rm -rf testdb' yourself."
	@echo ""
	@echo "Press return/enter to continue."
	read yn
	mkdir testdb
	rpm --initdb --dbpath $(PWD)/testdb
	-x=$(PWD) ;\
		cd $(RPMS) ;\
		rpm --test --dbpath $$x/testdb -Uvh *.rpm
	rm -rf testdb