+export DEBOOTSTRAP=debootstrap
+
+handle_crosscompile()
+{
+ if [ "`uname -m`" != 'aarch64' ]; then
+ export ARCH=arm64
+ export CROSS_COMPILE=aarch64-linux-gnu-
+ export DEBOOTSTRAP=qemu-debootstrap
+ sudo apt install -y libc6-dev-arm64-cross
+ fi
+}
+
+build_linux()
+{
+(
+ handle_crosscompile
+ test -d linux || git clone --depth 1 https://github.com/AsahiLinux/linux -b asahi
+ cd linux
+ git fetch
+ git reset --hard origin/asahi; git clean -f -x -d &> /dev/null
+ curl -s https://tg.st/u/40c9642c7569c52189f84621316fc9149979ee65.patch | git am -
+ curl -s https://tg.st/u/0001-4k-iommu-patch-2022-07-20.patch | git am -
+ curl -s https://tg.st/u/config-2022-08-13-4k.txt > .config
+ make olddefconfig
+ make -j `nproc` V=0 bindeb-pkg > /dev/null
+)
+}
+
+build_m1n1()
+{
+(
+ test -d m1n1 || git clone --recursive https://github.com/AsahiLinux/m1n1
+ cd m1n1
+ git fetch -a -t
+ # https://github.com/AsahiLinux/PKGBUILDs/blob/main/m1n1/PKGBUILD
+ git reset --hard v1.1.3; git clean -f -x -d &> /dev/null
+ make -j `nproc`
+)
+}
+
+build_uboot()
+{
+(
+ handle_crosscompile
+ test -d u-boot || git clone https://github.com/AsahiLinux/u-boot
+ cd u-boot
+ git fetch -a -t
+ # For tag, see https://github.com/AsahiLinux/PKGBUILDs/blob/main/uboot-asahi/PKGBUILD
+ git reset --hard asahi-v2022.07-2; git clean -f -x -d &> /dev/null
+ curl -s https://tg.st/u/0001-usb-storage-continue-probe-on-Invalid-device.patch | git am -
+ git revert --no-edit 4d2b02faf69eaddd0f73758ab26c456071bd2017
+ make apple_m1_defconfig
+ make -j `nproc`
+)
+
+ cat m1n1/build/m1n1.bin `find linux/arch/arm64/boot/dts/apple/ -name \*.dtb` <(gzip -c u-boot/u-boot-nodtb.bin) > u-boot.bin
+ cat m1n1/build/m1n1.macho `find linux/arch/arm64/boot/dts/apple/ -name \*.dtb` <(gzip -c u-boot/u-boot-nodtb.bin) > u-boot.macho
+ cp u-boot.bin 4k.bin
+ cp u-boot.bin 2k.bin
+ echo 'display=2560x1440' >> 2k.bin
+ echo 'display=wait,3840x2160' >> 4k.bin
+
+}
+
+build_rootfs()
+{
+(
+ handle_crosscompile
+ sudo rm -rf testing
+ mkdir -p cache
+ sudo eatmydata ${DEBOOTSTRAP} --cache-dir=`pwd`/cache --arch=arm64 --include initramfs-tools,pciutils,wpasupplicant,tcpdump,vim,tmux,vlan,ntpdate,parted,curl,wget,grub-efi-arm64,mtr-tiny,dbus,ca-certificates,sudo,openssh-client,mtools,gdisk testing testing http://deb.debian.org/debian
+
+ export KERNEL=`ls -1rt linux-image*.deb | grep -v dbg | tail -1`
+
+ cd testing
+
+ sudo mkdir -p boot/efi
+
+ sudo bash -c 'echo debian > etc/hostname'
+
+ sudo bash -c 'echo > etc/motd'
+
+ sudo cp ../../files/sources.list etc/apt/sources.list
+ sudo cp ../../files/hosts etc/hosts
+ sudo cp ../../files/resolv.conf etc/resolv.conf
+ sudo cp ../../files/quickstart.txt root/
+ sudo cp ../../files/interfaces etc/network/interfaces
+ sudo cp ../../files/wpa.conf etc/wpa_supplicant/wpa_supplicant.conf
+ sudo cp ../../files/rc.local etc/rc.local
+
+ sudo bash -c 'chroot . apt update'
+ sudo bash -c 'chroot . apt install -y firmware-linux'
+
+ sudo -- perl -p -i -e 's/root:x:/root::/' etc/passwd
+
+ sudo -- ln -s lib/systemd/systemd init
+
+ sudo cp ../${KERNEL} .
+ sudo chroot . dpkg -i ${KERNEL}
+ sudo rm ${KERNEL}
+
+ sudo bash -c 'chroot . apt-get clean'
+)
+}
+
+build_live_stick()
+{
+(
+ rm -rf live-stick
+ mkdir -p live-stick/efi/boot live-stick/efi/debian/
+ sudo cp ../files/wifi.pl testing/etc/rc.local
+ sudo bash -c 'cd testing; find . | cpio --quiet -H newc -o | pigz -9 > ../live-stick/initrd.gz'
+ cp testing/usr/lib/grub/arm64-efi/monolithic/grubaa64.efi live-stick/efi/boot/bootaa64.efi
+ cp testing/boot/vmlinuz* live-stick/vmlinuz
+ cp ../files/grub.cfg live-stick/efi/debian/grub.cfg
+ (cd live-stick; tar cf ../asahi-debian-live.tar .)
+)
+}
+
+build_dd()
+{
+(
+ rm -f media
+ dd if=/dev/zero of=media bs=1 count=0 seek=2G
+ mkdir -p mnt
+ mkfs.ext4 media
+ tune2fs -O extents,uninit_bg,dir_index -m 0 -c 0 -i 0 media
+ sudo mount -o loop media mnt
+ sudo cp -a testing/* mnt/
+ sudo rm mnt/init
+ sudo umount mnt
+ tar cf - media | pigz -9 > m1.tgz
+)
+}
+
+build_efi()
+{
+(
+ rm -rf EFI
+ mkdir -p EFI/boot EFI/debian
+ cp testing/usr/lib/grub/arm64-efi/monolithic/grubaa64.efi EFI/boot/bootaa64.efi
+
+ export INITRD=`ls -1 testing/boot/ | grep initrd`
+ export VMLINUZ=`ls -1 testing/boot/ | grep vmlinuz`
+ export UUID=`blkid -s UUID -o value media`
+ cat > EFI/debian/grub.cfg <<EOF
+search.fs_uuid ${UUID} root
+linux (\$root)/boot/${VMLINUZ} root=UUID=${UUID} rw
+initrd (\$root)/boot/${INITRD}
+boot
+EOF
+ tar czf efi.tgz EFI
+)
+}
+
+build_asahi_installer_image()
+{
+(
+ rm -rf aii
+ mkdir -p aii/esp/m1n1
+ cp -a EFI aii/esp/
+ cp u-boot.bin aii/esp/m1n1/boot.bin
+ ln media aii/media
+ cd aii
+ zip -r9 ../debian-base.zip esp media
+)
+}
+
+build_di_stick()
+{
+ rm -rf di-stick
+ mkdir -p di-stick/efi/boot di-stick/efi/debian/
+ rm -f initrd.gz
+ wget https://d-i.debian.org/daily-images/arm64/daily/netboot/debian-installer/arm64/initrd.gz
+ sudo rm -rf initrd; mkdir initrd; (cd initrd; gzip -cd ../initrd.gz | sudo cpio -imd --quiet)
+ sudo rm -rf initrd/lib/modules/*
+ sudo cp -a testing/lib/modules/* initrd/lib/modules/
+ sudo cp ../files/wifi.sh initrd/
+ sudo cp ../files/boot.sh initrd/
+ (cd initrd; find . | cpio --quiet -H newc -o | pigz -9 > ../di-stick/initrd.gz)
+ sudo rm -rf initrd
+ cp testing/usr/lib/grub/arm64-efi/monolithic/grubaa64.efi di-stick/efi/boot/bootaa64.efi
+ cp testing/boot/vmlinuz* di-stick/vmlinuz
+ cp ../files/grub.cfg di-stick/efi/debian/grub.cfg
+ export KERNEL=`ls -1rt linux-image*.deb | grep -v dbg | tail -1`
+ cp ${KERNEL} di-stick/
+ (cd di-stick; tar cf ../m1-d-i.tar .)
+}
+
+publish_artefacts()
+{
+ export KERNEL=`ls -1rt linux-image*.deb | grep -v dbg | tail -1`
+ cp ${KERNEL} k.deb
+ sudo cp m1-d-i.tar m1.tgz efi.tgz asahi-debian-live.tar u-boot.bin u-boot.macho 2k.bin 4k.bin k.deb m1n1/build/m1n1.bin m1n1/build/m1n1.macho testing/usr/lib/grub/arm64-efi/monolithic/grubaa64.efi debian-base.zip /u/
+}
+
+mkdir -p build
+cd build
+
+sudo apt-get install -y build-essential bash git locales gcc-aarch64-linux-gnu libc6-dev device-tree-compiler imagemagick ccache eatmydata debootstrap pigz libncurses-dev qemu-user-static binfmt-support rsync git flex bison bc kmod cpio libncurses5-dev libelf-dev:native libssl-dev dwarves
+
+build_linux
+build_m1n1
+build_uboot
+build_rootfs
+#build_di_stick
+build_dd
+build_efi
+build_asahi_installer_image
+build_live_stick
+publish_artefacts