mirror of
https://github.com/openvswitch/ovs
synced 2025-08-22 09:58:01 +00:00
51 lines
1.7 KiB
Plaintext
51 lines
1.7 KiB
Plaintext
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#!/bin/sh
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# preinst script for openvswitch-switch
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#
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# see: dh_installdeb(1)
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set -e
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# summary of how this script can be called:
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# * <new-preinst> `install'
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# * <new-preinst> `install' <old-version>
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# * <new-preinst> `upgrade' <old-version>
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# * <old-preinst> `abort-upgrade' <new-version>
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# for details, see http://www.debian.org/doc/debian-policy/ or
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# the debian-policy package
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case "$1" in
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install|upgrade)
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if dpkg --compare-versions "$2" lt-nl "2.17.2-1"; then
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# the conffile was not owned by the pkg before if it had any
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# custom content, retain as is to avoid an upgrade error or
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# conffile prompt we back it up in that case and restore it
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# in the postinst
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# Since it wasn#t owned we can't query the old checksum via
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# dpkg-query -W -f='${Conffiles}' as one usually would
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conffile="/etc/default/openvswitch-switch"
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md5olddebian="167668db26d5b29ec1469413b12d9bbe"
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md5oldubuntu="ae4d44b501cfb1eb362d87644a1bae0d"
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md5new="$(md5sum ${conffile} | sed -e 's/ .*//')"
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if [ "${md5olddebian}" = "${md5new}" ]; then
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# was unmodified, remove - will drop the new at unpack
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rm -f "${conffile}"
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else
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if [ ! "${md5oldubuntu}" = "${md5new}" ]; then
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# neither matches old default Debian, nor Ubuntu.
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# move to restore in postinst after taking conffile ownership
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mv "${conffile}" "${conffile}.dpkg-bak"
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fi
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fi
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fi
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;;
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*)
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echo "preinst called with unknown argument \`$1'" >&2
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exit 1
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;;
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esac
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#DEBHELPER#
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exit 0
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