feat: Remove build-host.sh as it is no longer used

The use of `build-host.sh` has been removed in
3bda5b26a675f241a1e0ba596dc94858839d96fc.
In the case a script is needed to run `build-inside-vm.sh` in such an
environment again, it is advised to rely on
https://gitlab.archlinux.org/archlinux/ci-scripts/ instead.

2 files changed, 2 insertions, 153 deletions

diff --git a/README.md b/README.md
index ca2f8ee..c784840 100644
--- a/README.md
+++ b/README.md
@@ -28,9 +28,9 @@ You'll need the following dependencies:
 * libisoburn
 
 ### How to build this
-The official builds are done in our Arch Linux GitLab CI and can be built locally by running:
+The official builds are done in our Arch Linux GitLab CI and can be built locally by running (as root):
 
-    ./build-host.sh
+    ./build.sh
 
 # Releases
 
diff --git a/build-host.sh b/build-host.sh
deleted file mode 100755
index 8d0d648..0000000
--- a/build-host.sh
+++ /dev/null
@@ -1,151 +0,0 @@
-#!/bin/bash
-# build-host.sh runs build-inside-vm.sh in a qemu VM running the latest Arch installer iso
-#
-# nounset: "Treat unset variables and parameters [...] as an error when performing parameter expansion."
-# errexit: "Exit immediately if [...] command exits with a non-zero status."
-set -o nounset -o errexit
-readonly MIRROR="https://geo.mirror.pkgbuild.com"
-
-function init() {
-  readonly ORIG_PWD="${PWD}"
-  readonly OUTPUT="${PWD}/output"
-  local tmpdir
-  tmpdir="$(mktemp --dry-run --directory --tmpdir="${PWD}/tmp")"
-  readonly TMPDIR="${tmpdir}"
-  mkdir -p "${OUTPUT}" "${TMPDIR}"
-
-  cd "${TMPDIR}"
-}
-
-# Do some cleanup when the script exits
-function cleanup() {
-  rm -rf "${TMPDIR}"
-  jobs -p | xargs --no-run-if-empty kill
-}
-trap cleanup EXIT
-
-# Use local Arch iso or download the latest iso and extract the relevant files
-function prepare_boot() {
-  if LOCAL_ISO="$(ls "${ORIG_PWD}/"archlinux-*-x86_64.iso 2>/dev/null)"; then
-    echo "Using local iso: ${LOCAL_ISO}"
-    ISO="${LOCAL_ISO}"
-  fi
-
-  if [ -z "${LOCAL_ISO}" ]; then
-    LATEST_ISO="$(curl -fs "${MIRROR}/iso/latest/" | grep -Eo 'archlinux-[0-9]{4}\.[0-9]{2}\.[0-9]{2}-x86_64.iso' | head -n 1)"
-    if [ -z "${LATEST_ISO}" ]; then
-      echo "Error: Couldn't find latest iso'"
-      exit 1
-    fi
-    curl -fO "${MIRROR}/iso/latest/${LATEST_ISO}"
-    ISO="${PWD}/${LATEST_ISO}"
-  fi
-
-  # We need to extract the kernel and initrd so we can set a custom cmdline:
-  # console=ttyS0, so the kernel and systemd sends output to the serial.
-  xorriso -osirrox on -indev "${ISO}" -extract arch/boot/x86_64 .
-  ISO_VOLUME_ID="$(xorriso -indev "${ISO}" |& awk -F : '$1 ~ "Volume id" {print $2}' | tr -d "' ")"
-}
-
-function start_qemu() {
-  # Used to communicate with qemu
-  mkfifo guest.out guest.in
-  # We could use a sparse file but we want to fail early
-  fallocate -l 4G scratch-disk.img
-
-  { qemu-system-x86_64 \
-    -machine accel=kvm:tcg \
-    -smp 4 \
-    -m 2048 \
-    -net nic \
-    -net user \
-    -kernel vmlinuz-linux \
-    -initrd initramfs-linux.img \
-    -append "archisobasedir=arch archisolabel=${ISO_VOLUME_ID} cow_spacesize=2G ip=dhcp net.ifnames=0 console=ttyS0 mirror=${MIRROR}" \
-    -drive file=scratch-disk.img,format=raw,if=virtio \
-    -drive file="${ISO}",format=raw,if=virtio,media=cdrom,read-only \
-    -virtfs "local,path=${ORIG_PWD},mount_tag=host,security_model=none" \
-    -monitor none \
-    -serial pipe:guest \
-    -nographic || kill "${$}"; } &
-
-  # We want to send the output to both stdout (fd1) and a new file descriptor (used by the expect function)
-  exec 3>&1 {fd}< <(tee /dev/fd/3 <guest.out)
-}
-
-# Wait for a specific string from qemu
-function expect() {
-  local length="${#1}"
-  local i=0
-  local timeout="${2:-30}"
-  # We can't use ex: grep as we could end blocking forever, if the string isn't followed by a newline
-  while true; do
-    # read should never exit with a non-zero exit code,
-    # but it can happen if the fd is EOF or it times out
-    IFS= read -r -u ${fd} -n 1 -t "${timeout}" c
-    if [ "${1:${i}:1}" = "${c}" ]; then
-      i="$((i + 1))"
-      if [ "${length}" -eq "${i}" ]; then
-        break
-      fi
-    else
-      i=0
-    fi
-  done
-}
-
-# Send string to qemu
-function send() {
-  echo -en "${1}" >guest.in
-}
-
-function main() {
-  init
-  prepare_boot
-  start_qemu
-
-  # Login
-  expect "archiso login:"
-  send "root\n"
-  expect "# "
-
-  # Switch to bash and shutdown on error
-  send "bash\n"
-  expect "# "
-  send "trap \"shutdown now\" ERR\n"
-  expect "# "
-
-  # Prepare environment
-  send "mkdir /mnt/arch-boxes && mount -t 9p -o trans=virtio host /mnt/arch-boxes -oversion=9p2000.L\n"
-  expect "# "
-  send "mkfs.ext4 /dev/vda && mkdir /mnt/scratch-disk/ && mount /dev/vda /mnt/scratch-disk && cd /mnt/scratch-disk\n"
-  expect "# "
-  send "cp -a /mnt/arch-boxes/{box.ovf,build-inside-vm.sh,images} .\n"
-  expect "# "
-  send "mkdir pkg && mount --bind pkg /var/cache/pacman/pkg\n"
-  expect "# "
-
-  # Wait for pacman-init
-  send "until systemctl is-active pacman-init; do sleep 1; done\n"
-  expect "# "
-
-  # Explicitly lookup mirror address as we'd get random failures otherwise during pacman
-  send "curl -sSo /dev/null ${MIRROR}\n"
-  expect "# "
-
-  # Install required packages
-  send "pacman -Syu --ignore linux --noconfirm qemu-headless jq\n"
-  expect "# " 120 # (10/14) Updating module dependencies...
-
-  ## Start build and copy output to local disk
-  send "bash -x ./build-inside-vm.sh ${BUILD_VERSION:-}\n"
-  expect "# " 240 # qemu-img convert can take a long time
-  send "cp -vr --preserve=mode,timestamps output /mnt/arch-boxes/tmp/$(basename "${TMPDIR}")/\n"
-  expect "# " 60
-  mv output/* "${OUTPUT}/"
-
-  # Shutdown the VM
-  send "shutdown now\n"
-  wait
-}
-main