efiboot/functions

   1 #! /bin/sh
   2 set -e
   3
   4 # adapted from /etc/kernel/postinst.d/apt-auto-removal as present in
   5 # debian's apt package:
   6 #
   7 # Mark as not-for-autoremoval those kernel packages that are:
   8 #  - the currently booted version
   9 #  - the kernel version we've been called for
  10 #  - the latest kernel version (as determined by debian version number)
  11 #  - the second-latest kernel version
  12 #  - the latest kernel version of each series (e.g. 4.13, 4.15, 5.0) by
  13 #    marking the meta-packages
  14
  15 kernel_keep_versions() {
  16         eval "$(apt-config shell DPKG Dir::bin::dpkg/f)"
  17         test -n "$DPKG" || DPKG="/usr/bin/dpkg"
  18
  19         list="$("${DPKG}" -l | awk '/^[ih][^nc][ ]+pve-kernel-[0-9]+\./ && $2 !~ /-dbg(:.*)?$/ && $2 !~ /-dbgsym(:.*)?$/ { print $2; }' \
  20            | sed -e 's#^pve-kernel-##' -e 's#:[^:]\+ # #')"
  21
  22         sorted_list="$(echo "$list" | sort --unique --reverse --version-sort)"
  23
  24         [ -n "$1" ] && install_version="$1"
  25
  26         running_version="$(uname -r | tr 'A-Z' 'a-z')"
  27
  28         # ignore the currently running version if attempting a reproducible build
  29         if [ -n "${SOURCE_DATE_EPOCH}" ]; then
  30                 running_version=""
  31         fi
  32
  33         latest_2_versions="$(echo "$sorted_list" | grep -E '^[^ ]+-pve' | head -n2 )"
  34
  35         series_metapackages="$(echo "$sorted_list" | grep -Ev '^[^ ]+-pve')"
  36
  37         kernels="$(cat <<-EOF
  38                 $running_version
  39                 $install_version
  40                 $latest_2_versions
  41                 $series_metapackages
  42                 EOF
  43         )"
  44
  45         echo "$kernels" | sort -u | sed -e '/^$/ d'
  46 }
  47
  48 #bootable kernels are the same as the no_autoremove ones without the meta-package
  49 boot_kernel_list() {
  50         list="$(kernel_keep_versions "$@")"
  51
  52         echo "$list" | grep -E '^[^ ]+-pve'
  53
  54 }
  55
  56 warn() {
  57         echo "$@" 1>&2
  58 }