# Description: Utilities for rescue and embedded systems
# URL:         https://www.busybox.net/
# Maintainer:  KRAK3N Team, core ports at krak3n dot my

name=busybox
version=1.37.0
release=5
source=(https://${name}.net/downloads/${name}-${version}.tar.bz2
	0001-awk-fix-handling-of-literal-backslashes-in-replaceme.patch
	0006-modinfo-add-k-option-for-kernel-version.patch
	0007-nologin-Install-applet-to-sbin-instead-of-usr-sbin.patch
	0016-ping-make-ping-work-without-root-privileges.patch
	0031-syslogd-fix-wrong-OPT_locallog-flag-detection.patch
	0034-adduser-remove-preconfigured-GECOS-full-name-field.patch
	kernel-6.8-tca.patch
	fsck-resolve-uuid.patch
	adduser-no-setgid.patch
	print-unicode.patch
	modprobe-kernel-version.patch
	busybox-suidwrapper.c
	mdev.conf
	acpid.run
	crond.run
	ntpd.run
	syslogd.run
	klogd.run
	inetd.run
	httpd.run
	mdev.run
	tty1.run
	tty2.run
	tty3.run
	tty4.run
	tty5.run
	ttyS0.run
	pause.c
	pause.1
	shutdown)


_disable() {
	while [ "$1" ]; do
		sed "s/^CONFIG_${1}=y/# CONFIG_${1} is not set/" -i .config
		shift
	done
}

_enable() {
	while [ "$1" ]; do
		sed "s/^# CONFIG_${1}.*/CONFIG_${1}=y/" -i .config
		shift
	done
}

build() {
	cd ${name}-${version}

	for p in $SRC/*.patch; do
		patch -Np1 -i $p
	done
	
	make defconfig

	# disable unneeded applets
	_disable LINUX32 LINUX64 LINUXRC DPKG DPKG_DEB RPM RUN_PARTS MODPROBE_SMALL HUSH SHELL_HUSH

	# enable needed applets
	_enable STATIC FEATURE_MODUTILS_ALIAS FEATURE_MODUTILS_SYMBOLS

	# workaround lxdialog not work with clang
	#sed 's/$cc/$cc -Wno-implicit-int/' -i scripts/kconfig/lxdialog/check-lxdialog.sh
	#make menuconfig
	make
	make CONFIG_PREFIX=$PKG install
	mkdir -p $PKG/usr/share/busybox
	cat .config > $PKG/usr/share/busybox/config

	${CC:-cc} -o $PKG/bin/busybox-suidwrapper $SRC/busybox-suidwrapper.c
	chmod u+s $PKG/bin/busybox-suidwrapper

	for i in $($PKG/bin/busybox-suidwrapper -l); do
		[ -e /bin/$i ] && ln -svf busybox-suidwrapper $PKG/bin/$i
		[ -e /usr/bin/$i ] && ln -svf ../../bin/busybox-suidwrapper $PKG/usr/bin/$i
	done
	# wall is provided by util-linux
	rm $PKG/usr/bin/wall

	# remove from package that conflict with existing packages
	for i in chattr dmesg getopt ionice kill lsattr more mount mountpoint rev scriptreplay \
		setarch umount blkid blockdev depmod fdisk findfs fsck fsck.minix fstrim hwclock \
		insmod losetup lsmod mkdosfs mke2fs mkfs.ext2 mkfs.minix mkfs.vfat mkswap modinfo \
		modprobe pivot_root rmmod sulogin swapoff swapon switch_root; do
		rm $PKG/*/$i
	done
	for i in blkdiscard bunzip2 bzcat bzip2 cal chrt clear eject fallocate find flock getfattr \
		hexdump ipcrm ipcs last logger lzcat lzma man mesg nsenter patch renice reset rx \
		script setfattr setsid strings taskset unlzma unshare unxz xargs xz xzcat chat \
		fsfreeze partprobe readprofile rtcwake; do
		rm $PKG/*/*/$i
	done
	
	mkdir -p $PKG/etc
	install -m644 $SRC/mdev.conf $PKG/etc/mdev.conf
	
	${CC:-gcc} ${CFLAGS} $SRC/pause.c -o $PKG/usr/bin/pause
	install -d $PKG/usr/share/man/man1
	install -m644 $SRC/pause.1 $PKG/usr/share/man/man1/pause.1

	for s in $SRC/*.run; do
		s=${s##*/}; s=${s%.run}
		install -Dm755 $SRC/$s.run $PKG/etc/sv/$s/run
		ln -s ../../../run/runit/supervise.$s $PKG/etc/sv/$s/supervise
	done

	# shutdown wrapper script
	install -m755 $SRC/shutdown $PKG/sbin/shutdown

	# crontab dir
	mkdir -p $PKG/var/spool/cron/crontabs
}