preinst is in thunderbird 1:24.4.0+build1-0ubuntu1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | #!/bin/sh
set -e
MOZ_PKG_NAME=thunderbird
# Prepare to move a conffile without triggering a dpkg question
prepare_mv_conffile() {
local PKGNAME="$1"
local CONFFILE="$2"
[ -e "$CONFFILE" ] || return 0
local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
local old_md5sum="$(dpkg-query -W -f='${Conffiles}' $PKGNAME | \
sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
#'
if [ "$md5sum" = "$old_md5sum" ]; then
mv -f "$CONFFILE" "$CONFFILE.dpkg-remove"
fi
}
if [ "$1" = "install" ] || [ "$1" = "upgrade" ] ; then
prepare_mv_conffile "${MOZ_PKG_NAME}" "/etc/${MOZ_PKG_NAME}/pref/thunderbird.js"
fi
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