75 lines
2.2 KiB
Bash
75 lines
2.2 KiB
Bash
#!/bin/sh
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# fork by reg from /etc/kernel/postinst.d/apt-auto-removal script
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set -e
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eval $(apt-config shell DPKG Dir::bin::dpkg/f)
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test -n "$DPKG" || DPKG="/usr/bin/dpkg"
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# Detect which one of apt/aptitude we should use.
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get_apt_binary() {
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root="$1"
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# apt could be a Java binary...
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if [ -x $root/usr/bin/apt ] && ! $root/usr/bin/apt --version 2>&1 |grep -q "javac"; then
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echo "apt"
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elif [ -x $root/usr/bin/aptitude ]; then
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echo "aptitude"
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# Usually in containers
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else
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echo "apt-get"
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fi
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}
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APT=$(get_apt_binary)
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list="$("${DPKG}" -l | awk '/^[ih][^nc][ ]+(linux|kfreebsd|gnumach)-image-[0-9]+\./ && $2 !~ /-dbg(:.*)?$/ && $2 !~ /-dbgsym(:.*)?$/ { print $2,$3; }' \
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| sed -e 's#^\(linux\|kfreebsd\|gnumach\)-image-##' -e 's#:[^:]\+ # #')"
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debverlist="$(echo "$list" | cut -d' ' -f 2 | sort --unique --reverse --version-sort)"
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if [ -n "$1" ]; then
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installed_version="$(echo "$list" | awk "\$1 == \"$1\" { print \$2;exit; }")"
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fi
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unamer="$(uname -r | tr '[A-Z]' '[a-z]')"
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if [ -n "$unamer" ]; then
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running_version="$(echo "$list" | awk "\$1 == \"$unamer\" { print \$2;exit; }")"
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fi
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# ignore the currently running version if attempting a reproducible build
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if [ -n "${SOURCE_DATE_EPOCH}" ]; then
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unamer=""
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running_version=""
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fi
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latest_version="$(echo "$debverlist" | sed -n 1p)"
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previous_version="$(echo "$debverlist" | sed -n 2p)"
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debkernels="$(echo "$latest_version
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$installed_version
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$running_version" | sort -u | sed -e '/^$/ d')"
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kernels="$( (echo "$1
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$unamer"; for deb in $debkernels; do echo "$list" | awk "\$2 == \"$deb\" { print \$1; }"; done; ) \
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| sed -e 's#\([\.\+]\)#\\\1#g' -e '/^$/ d' | sort -u|tr '\n' '|' | sed -e 's/|$//')"
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echo "
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List of installed kernel packages:
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$list
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# Running kernel: ${running_version:-ignored} (${unamer:-ignored})
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# Last kernel: $latest_version
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# Previous kernel: $previous_version
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# Kernel versions list to keep:
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$debkernels
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# Kernel packages (version part) to protect:
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$kernels
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"
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echo "BEFORE"
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dpkg -l | grep linux-image
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dpkg --get-selections | tr '\t' ' ' | cut -d" " -f1 | grep ^linux-image-[234] | egrep -v "($kernels)" | xargs --no-run-if-empty $APT -y purge
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echo "
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AFTER"
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dpkg -l | grep linux-image
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echo ""
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