preinst is in ttf-hanazono 20160201-1.
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 | #!/bin/sh
set -e
OLD_ALT_NAME="ttf-japanese-mincho"
OLD_FONT_ENTRY="/usr/share/fonts/truetype/hanazono/hanazono.ttf"
if [ "$1" = "install" ] || [ "$1" = "upgrade" ]; then
if dpkg --compare-versions "$2" lt-nl "20120421-1.1~"; then
update-alternatives --remove $OLD_ALT_NAME.ttf $OLD_FONT_ENTRY
fi
fi
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