Remove build-host.sh

.gitlab/ci/build-host.sh:
Remove script, as it has been replaced by ci-scripts.

.gitlab/ci/build-host.sh

-#!/usr/bin/env bash
-#
-# This script runs a build script in a QEMU VM using the latest Arch Linux installation medium.
-# The build script is expected to create an './output' directory in the project's directory (when running in the VM) and
-# place any build artifacts there.
-# After the build script has finished this script will copy all artifacts to a (local) './output' directory and shutdown
-# the VM.
-#
-# Dependencies:
-# - coreutils
-# - curl
-# - libarchive
-# - qemu-headless
-# - util-linux
-#
-# Considered environment variables:
-# ARCHISO_COW_SPACE_SIZE: The amount of RAM to allocate for the copy-on-write space used by archiso (defaults to 1g -
-# see https://man.archlinux.org/man/tmpfs.5 for understood units)
-# ARCHITECTURE: A string to set the CPU architecture (defaults to x86_64)
-# BUILD_SCRIPT: A script that will be called on the host (defaults to ./build-inside-vm.sh)
-# BUILD_SCRIPT_ARGS: The arguments to BUILD_SCRIPT (as a space delimited list)
-# PACKAGE_LIST: A space delimited list of packages to install to the virtual machine
-# PACMAN_MIRROR: The pacman mirror to use (defaults to "https://mirror.pkgbuild.com")
-# QEMU_DISK_SIZE: A string given to fallocate to create a scratch disk to build in (defaults to 8G - see
-# https://man.archlinux.org/man/fallocate.1 for understood units)
-# QEMU_VM_MEMORY: The amount of RAM (in MiB) allocated for the QEMU virtual machine (defaults to 1024)
-# QEMU_LOGIN_TIMEOUT: The maximum time (in seconds) to wait for the initial prompt in the VM to appear (defaults to 60)
-# QEMU_PACKAGES_TIMEOUT: The maximum time (in seconds) to wait for output from pacman when installing packages (defaults
-# to 120)
-# QEMU_BUILD_TIMEOUT: The maximum time (in seconds) to wait for output from the build script (defaults to 1800)
-# QEMU_COPY_ARTIFACTS_TIMEOUT: The maximum time (in seconds) to wait for output from the action of copying the build
-# artifacts from the VM to a local directory (defaults to 60)
-
-
-set -euo pipefail
-
-readonly orig_pwd="${PWD}"
-readonly output="${PWD}/output"
-
-# variables with presets/ environmental overrides
-arch="${ARCHITECTURE:-x86_64}"
-script="${BUILD_SCRIPT:-./build-inside-vm.sh}"
-script_args="${BUILD_SCRIPT_ARGS:-}"
-mirror="${PACMAN_MIRROR:-https://mirror.pkgbuild.com}"
-disk_size="${QEMU_DISK_SIZE:-8G}"
-vm_memory="${QEMU_VM_MEMORY:-1024}"
-login_timeout="${QEMU_LOGIN_TIMEOUT:-60}"
-packages_timeout="${QEMU_PACKAGES_TIMEOUT:-120}"
-build_timeout="${QEMU_BUILD_TIMEOUT:-1800}"
-copy_artifacts_timeout="${QEMU_COPY_ARTIFACTS_TIMEOUT:-60}"
-cow_space_size="${ARCHISO_COW_SPACE_SIZE:-1g}"
-packages="${PACKAGE_LIST:-}"
-
-# variables without presets/ environmental overrides
-iso=""
-iso_volume_id=""
-tmpdir=""
-tmpdir="$(mktemp --dry-run --directory --tmpdir="${PWD}/tmp")"
-
-print_section_start() {
-  # gitlab collapsible sections start: https://docs.gitlab.com/ee/ci/jobs/#custom-collapsible-sections
-  local _section _title
-  _section="${1}"
-  _title="${2}"
-
-  printf "\e[0Ksection_start:%(%s)T:%s\r\e[0K%s\n" '-1' "${_section}" "${_title}"
-}
-
-print_section_end() {
-  # gitlab collapsible sections end: https://docs.gitlab.com/ee/ci/jobs/#custom-collapsible-sections
-  local _section
-  _section="${1}"
-
-  printf "\e[0Ksection_end:%(%s)T:%s\r\e[0K\n" '-1' "${_section}"
-}
-
-init() {
-  print_section_start "create_dirs" "Create required directories"
-
-  mkdir -p "${output}" "${tmpdir}"
-  cd "${tmpdir}"
-
-  print_section_end "create_dirs"
-}
-
-# Do some cleanup when the script exits
-cleanup() {
-  print_section_start "cleanup" "Cleaning up"
-
-  rm -rf -- "${tmpdir}"
-  jobs -p | xargs --no-run-if-empty kill
-
-  print_section_end "cleanup"
-}
-trap cleanup EXIT
-
-# Use local Arch iso or download the latest iso and extract the relevant files
-prepare_boot() {
-  local _latest_iso _iso
-  local _isos=()
-
-  print_section_start "prepare_boot" "Prepare boot media"
-
-  # retrieve any local images and sort them
-  for _iso in "${orig_pwd}/"archlinux-*-"${arch}.iso"; do
-    if [[ -f "${_iso}" ]]; then
-      _isos+=("${_iso}")
-    fi
-  done
-  if (( ${#_isos[@]} >= 1 )); then
-    iso="$(printf '%s\n' "${_isos[@]}" | sort -r | head -n1)"
-    printf "Using local iso: %s\n" "$iso"
-  fi
-
-  if (( ${#_isos[@]} < 1 )); then
-    _latest_iso="$(
-        curl -fs "${mirror}/iso/latest/" | \
-        grep -Eo "archlinux-[0-9]{4}\.[0-9]{2}\.[0-9]{2}-${arch}.iso" | \
-        head -n 1
-    )"
-    if [[ -z "${_latest_iso}" ]]; then
-      echo "Error: Could not find latest iso"
-      exit 1
-    fi
-    curl -fO "${mirror}/iso/latest/${_latest_iso}"
-    iso="${PWD}/${_latest_iso}"
-  fi
-
-  # Extract the kernel and initrd so that a custom kernel cmdline can be set:
-  # console=ttyS0, so that the kernel and systemd send output to the serial.
-  bsdtar -x -f "${iso}" -C . "arch/boot/${arch}"
-  iso_volume_id="$(blkid -s LABEL -o value "${iso}")"
-
-  print_section_end "prepare_boot"
-}
-
-start_qemu() {
-  local _kernel_params=(
-    "archisobasedir=arch"
-    "archisolabel=${iso_volume_id}"
-    "cow_spacesize=${cow_space_size}"
-    "ip=dhcp"
-    "net.ifnames=0"
-    "console=ttyS0"
-    "mirror=${mirror}"
-  )
-
-  print_section_start "start_qemu" "Start VM using 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 "${disk_size}" scratch-disk.img
-
-  { qemu-system-x86_64 \
-    -machine accel=kvm:tcg \
-    -smp "$(nproc)" \
-    -m "${vm_memory}" \
-    -device virtio-net-pci,romfile=,netdev=net0 \
-    -netdev user,id=net0 \
-    -kernel "arch/boot/${arch}/vmlinuz-linux" \
-    -initrd "arch/boot/${arch}/initramfs-linux.img" \
-    -append "${_kernel_params[*]}" \
-    -drive file=scratch-disk.img,format=raw,if=virtio \
-    -drive "file=${iso},format=raw,if=virtio,media=cdrom,read-only=on" \
-    -virtfs "local,path=${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 fd10 (used by the expect function)
-  exec 3>&1 10< <(tee /dev/fd/3 <guest.out)
-
-  print_section_end "start_qemu"
-}
-
-# Wait for a specific string from qemu
-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 10 -n 1 -t "${timeout}" c
-    if [[ "${1:${i}:1}" = "${c}" ]]; then
-      i="$((i + 1))"
-      if [[ "${length}" -eq "${i}" ]]; then
-        break
-      fi
-    else
-      i=0
-    fi
-  done
-}
-
-# Send string to qemu
-send() {
-  echo -en "${1}" >guest.in
-}
-
-main() {
-  local _pacman_command=(
-    "pacman -Fy &&"
-    "pacman -Syu --ignore"
-    "\$(pacman -Fq --machinereadable /usr/lib/modules/"
-    "| awk 'BEGIN { FS =\"\\\0\";ORS=\",\" }; { print \$2 }'"
-    "| sort -ut , | head -c -2)"
-    "--noconfirm --needed ${packages}\n"
-  )
-
-  init
-  prepare_boot
-  start_qemu
-
-  print_section_start "init_build_environment" "Initialize build environment"
-
-  # Login
-  expect "archiso login:" "${login_timeout}"
-  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/project && mount -t 9p -o trans=virtio host /mnt/project -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 "rsync -a --exclude tmp --exclude .git -- /mnt/project/ .\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 ${mirror}\n"
-  expect "# "
-
-  print_section_end "init_build_environment"
-  print_section_start "install_packages" "Install packages"
-
-  if [[ -n "${packages}" ]]; then
-    # Install required packages
-    send "${_pacman_command[*]}"
-    expect "# " "${packages_timeout}"
-  fi
-
-  print_section_end "install_packages"
-
-  ## Start build and copy output to local disk
-  send "bash -x ${script} ${script_args}\n "
-  expect "# " "${build_timeout}"
-
-  print_section_start "move_artifacts" "Move artifacts to output directory"
-
-  send "rsync -av -- output /mnt/project/tmp/$(basename "${tmpdir}")/\n"
-  expect "# " "${copy_artifacts_timeout}"
-  mv -- output/* "${output}/"
-
-  print_section_end "move_artifacts"
-  print_section_start "shutdown" "Shutdown the VM"
-
-  # Shutdown the VM
-  send "systemctl poweroff -i\n"
-  wait
-
-  print_section_end "shutdown"
-}
-
-main