diff options
author | Michael Vogt <mvo@debian.org> | 2013-08-15 09:26:00 +0200 |
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committer | Michael Vogt <mvo@debian.org> | 2013-08-15 09:26:00 +0200 |
commit | d7a4635391d9ff36152603ab6faa6eafa206750a (patch) | |
tree | e16a562e3e9a195cae286433c5751a1ab9990635 /debian/apt.auto-removal.sh | |
parent | 2a49601f69e08f06fb2727d869d420daacdd09d5 (diff) | |
parent | 183116d1a64a2610b88fa6b50f2c5199b69d5841 (diff) |
Merge branch 'debian/sid' into debian/experimental
Conflicts:
apt-pkg/contrib/strutl.cc
apt-pkg/deb/dpkgpm.cc
configure.ac
debian/changelog
doc/po/apt-doc.pot
po/apt-all.pot
po/ar.po
po/ast.po
po/bg.po
po/bs.po
po/ca.po
po/cs.po
po/cy.po
po/da.po
po/de.po
po/dz.po
po/el.po
po/es.po
po/eu.po
po/fi.po
po/fr.po
po/gl.po
po/hu.po
po/it.po
po/ja.po
po/km.po
po/ko.po
po/ku.po
po/lt.po
po/mr.po
po/nb.po
po/ne.po
po/nl.po
po/nn.po
po/pl.po
po/pt.po
po/pt_BR.po
po/ro.po
po/ru.po
po/sk.po
po/sl.po
po/sv.po
po/th.po
po/tl.po
po/uk.po
po/vi.po
po/zh_CN.po
po/zh_TW.po
test/integration/framework
test/integration/test-bug-602412-dequote-redirect
test/integration/test-ubuntu-bug-346386-apt-get-update-paywall
test/interactive-helper/aptwebserver.cc
test/interactive-helper/makefile
Diffstat (limited to 'debian/apt.auto-removal.sh')
-rw-r--r-- | debian/apt.auto-removal.sh | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/debian/apt.auto-removal.sh b/debian/apt.auto-removal.sh new file mode 100644 index 000000000..d105f440a --- /dev/null +++ b/debian/apt.auto-removal.sh @@ -0,0 +1,93 @@ +#!/bin/sh + +set -e + +# Author: Steve Langasek <steve.langasek@canonical.com> +# +# Mark as not-for-autoremoval those kernel packages that are: +# - the currently booted version +# - the kernel version we've been called for +# - the latest kernel version (determined using rules copied from the grub +# package for deciding which kernel to boot) +# - the second-latest kernel version, if the booted kernel version is +# already the latest and this script is called for that same version, +# to ensure a fallback remains available in the event the newly-installed +# kernel at this ABI fails to boot +# In the common case, this results in exactly two kernels saved, but it can +# result in three kernels being saved. It's better to err on the side of +# saving too many kernels than saving too few. +# +# We generate this list and save it to /etc/apt/apt.conf.d instead of marking +# packages in the database because this runs from a postinst script, and apt +# will overwrite the db when it exits. + + +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)" + + +version_test_gt () +{ + 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 "$version_b" + return "$?" +} + +list=$(${DPKG} -l 'linux-image-[0-9]*'|awk '/^ii/ && $2 !~ /-dbg$/ { print $2 }' | sed -e's/linux-image-//') + +latest_version="" +previous_version="" +for i in $list; do + if version_test_gt "$i" "$latest_version"; then + previous_version="$latest_version" + latest_version="$i" + elif version_test_gt "$i" "$previous_version"; then + previous_version="$i" + fi +done + +if [ "$latest_version" != "$installed_version" ] \ + || [ "$latest_version" != "$running_version" ] \ + || [ "$installed_version" != "$running_version" ] +then + # We have at least two kernels that we have reason to think the + # user wants, so don't save the second-newest version. + previous_version= +fi + +kernels=$(sort -u <<EOF +$latest_version +$installed_version +$running_version +$previous_version +EOF +) + +cat > "$config_file".dpkg-new <<EOF +// File autogenerated by $0, do not edit +APT +{ + 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 + echo " \"^linux-backports-modules-.*-${kernel}$\";" >> "$config_file".dpkg-new + echo " \"^linux-headers-${kernel}$\";" >> "$config_file".dpkg-new +done +cat >> "$config_file".dpkg-new <<EOF + }; +}; +EOF +mv "$config_file".dpkg-new "$config_file" |