#!/bin/sh
-
set -e
# Author: Steve Langasek <steve.langasek@canonical.com>
# packages in the database because this runs from a postinst script, and apt
# will overwrite the db when it exits.
-config_file=/etc/apt/apt.conf.d/01autoremove-kernels
+
+eval $(apt-config shell APT_CONF_D Dir::Etc::parts/d)
+test -n "${APT_CONF_D}" || APT_CONF_D="/etc/apt/apt.conf.d"
+config_file=${APT_CONF_D}/01autoremove-kernels
+
+eval $(apt-config shell DPKG Dir::bin::dpkg/f)
+test -n "$DPKG" || DPKG="/usr/bin/dpkg"
installed_version="$1"
running_version="$(uname -r)"
local version_test_gt_sedexp="s/[._-]\(pre\|rc\|test\|git\|old\|trunk\)/~\1/g"
local version_a="`echo "$1" | sed -e "$version_test_gt_sedexp"`"
local version_b="`echo "$2" | sed -e "$version_test_gt_sedexp"`"
- dpkg --compare-versions "$version_a" gt "$version_b"
+ $DPKG --compare-versions "$version_a" gt "$version_b"
return "$?"
}
-list=$(dpkg -l 'linux-image-[0-9]*'|awk '/^ii/ { print $2 }' | sed -e's/linux-image-//')
+list="$(${DPKG} -l | awk '/^ii[ ]+(linux|kfreebsd|gnumach)-image-[0-9]/ && $2 !~ /-dbg$/ { print $2 }' | sed -e 's#\(linux\|kfreebsd\|gnumach\)-image-##')"
latest_version=""
previous_version=""
previous_version=
fi
-kernels=$(sort -u <<EOF
-$latest_version
+kernels="$(echo "$latest_version
$installed_version
$running_version
-$previous_version
-EOF
-)
+$previous_version" | sort -u | sed -e 's#\.#\\.#g' )"
-cat > "$config_file".dpkg-new <<EOF
-# File autogenerated by $0, do not edit
-APT
+generateconfig() {
+ cat <<EOF
+// DO NOT EDIT! File autogenerated by $0
+APT::NeverAutoRemove
{
- NeverAutoRemove
- {
EOF
-for kernel in $kernels; do
- echo " \"^linux-image-$kernel.*\";" >> "$config_file".dpkg-new
- echo " \"^linux-image-extra-$kernel.*\";" >> "$config_file".dpkg-new
- echo " \"^linux-signed-image-$kernel.*\";" >> "$config_file".dpkg-new
-done
-cat >> "$config_file".dpkg-new <<EOF
- };
-};
-EOF
-mv "$config_file".dpkg-new "$config_file"
+ apt-config dump --no-empty --format '%v%n' 'APT::VersionedKernelPackages' | while read package; do
+ for kernel in $kernels; do
+ echo " \"^${package}-${kernel}$\";"
+ done
+ done
+ echo '};'
+}
+generateconfig > "${config_file}.dpkg-new"
+mv "${config_file}.dpkg-new" "$config_file"