preinst is in pulseaudio 1:1.1-0ubuntu15.
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 26 27 | #!/bin/sh
case "$1" in
install|upgrade)
if dpkg --compare-versions "$2" lt "1:0.9.16~test1-0ubuntu1~ppa2"; then
if getent group pulse-rt > /dev/null ; then
delgroup --quiet --system pulse-rt > /dev/null || true
fi
fi
if dpkg --compare-versions "$2" lt "1:0.9.21-0ubuntu1"; then
if [ -f /etc/X11/Xsession.d/70pulseaudio ]; then
rm /etc/X11/Xsession.d/70pulseaudio
fi
fi
;;
abort-upgrade)
;;
*)
echo "preinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
exit 0
|