# upstream git revision: 31873a20cfdddf0a47e1bb0d4f8b9be06f598b90

source_pentium4=('config.pentium4')
source_i686=('config.i686')
source_i486=('config.i486')
# fail if upstream's .config changes
for ((i=0; i<${#sha256sums[@]}; i++)); do
  if [ "${sha256sums[${i}]}" = '06ad99b810943f7ce4650fe656156f4b40d11fabd9b89e2b1beff06c46836efc' ]; then
    sha256sums_pentium4=('a2b67b3c934bdd4664b400de97ea9abfb59017e7bcb3678fc7de509600b3efa8')
    sha256sums_i686=('cd2e4478aa859ee0b5e33bafe4a4fefc31f9e9d65878ded364af516212c9dc16')
    sha256sums_i486=('eb4284946c750e08aa6eeaf6f83da2358da5c2fcf34b3dd250f57a6afc80866d')
  fi
done

# copy architecture specific config file, not default 'config'
eval "$(
  declare -f prepare | \
    sed '
      s,\.\./config,../config.$CARCH,
    '
)"

# patch architecture when copying the kernel Makefile
eval "$(
  declare -f package_linux-headers | \
    sed '
      \,/tools/objtool" ,d
      \,arch/x86/Makefile, {
        a \
        install -t "${builddir}/arch/x86" -m644 arch/x86/Makefile_32.cpu
      }
    '
)"

# use our tarballer instead of cloning from git
for ((i=0; i<${#source[@]}; i++)); do
  infos=$(
    printf '%s\n' "${source[${i}]}" | \
      sed '
        s@^\(\([^:]\+\)::\)\?\(git\|hg\)+\([^#?]\+\)\(?signed\)\?#\(\(tag\|commit\)=[^?]\+\)$@\3 \2 \4 \5 \6@
        t
        s@^\(\([^:]\+\)::\)\?\(git\|hg\)+\([^#?]\+\)#\(\(tag\|commit\)=[^?]\+\)\(?signed\)\?$@\3 \2 \4 \7 \5@
        t
        d
      '
  )
  if [ -n "${infos}" ]; then
    source[${i}]=$(
      type="${infos%% *}"
      infos="${infos#* }"
      if [ -n "${infos%% *}" ]; then
        prefix="${infos%% *}"
      else
        prefix=''
      fi
      infos="${infos#* }"
      repo="${infos%% *}"
      repo64=$(
        printf '%s' "${repo}" | \
          base64 -w0 | \
          sed 's/=/%3D/g'
      )
      infos="${infos#* }"
      if [ "${infos%% *}" = '?signed' ]; then
        key_check=$(
          printf '&valid_keys='
          printf '%s,' "${validpgpkeys[@]}" | \
            sed 's/,$//'
        )
      else
        key_check=''
      fi
      infos="${infos#* }"
      if [ -z "${prefix}" ]; then
        prefix="${repo%.git}"
        prefix="${prefix##*/}"
      fi
      prefix_64=$(
        printf '%s/' "${prefix}" | \
          base64 -w0 | \
          sed 's/=/%3D/g'
      )

      printf '%s-%s.tar.gz::https://archive-server.archlinux32.org/?t=%s&p=%s&r=%s%s&%s\n' \
        "${prefix}" \
        "${pkgver}" \
        "${type}" \
        "${prefix_64}" \
        "${repo64}" \
        "${key_check}" \
        "${infos}"
    )
  fi
done

# avoid using zstd compression in ultra mode (exhausts virtual memory)
source+=('core/linux/no-ultra-zstd.patch')
sha256sums+=('3997ce6033fdf950a9960f1db720b38c47b1a2e06ab75fc6712c154f596e7c47')
# upstream prepare() does already do the *.patch patching