postinst is in upower 0.99.4-4+b1.
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 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | #!/bin/sh
set -e
# Move a conffile without triggering a dpkg question
mv_conffile() {
local OLDCONFFILE="$1"
local NEWCONFFILE="$2"
[ -e "$OLDCONFFILE" ] || return 0
echo "Preserving user changes to $NEWCONFFILE ..."
mv -f "$NEWCONFFILE" "$NEWCONFFILE".dpkg-new
mv -f "$OLDCONFFILE" "$NEWCONFFILE"
}
get_pid() {
[ -n "$1" ] || return 0
[ -S /var/run/dbus/system_bus_socket ] || return 0
dbus-send --system --dest=org.freedesktop.DBus --print-reply \
/org/freedesktop/DBus org.freedesktop.DBus.GetConnectionUnixProcessID \
string:$1 2>/dev/null | awk '/uint32/ {print $2}'
}
if [ "$1" = "configure" ]; then
# migrate power history from DeviceKit-power
if dpkg --compare-versions "$2" lt-nl "0.9.1-1" && [ -d /var/lib/DeviceKit-power/ ]; then
if [ ! -d /var/lib/upower ] || rmdir /var/lib/upower 2>/dev/null; then
echo "Migrating old DeviceKit-power history.."
mv /var/lib/DeviceKit-power/ /var/lib/upower
fi
fi
if dpkg --compare-versions "$2" lt "0.9.4-2"; then
mv_conffile "/etc/UPower.conf" "/etc/UPower/UPower.conf"
fi
# restart upowerd if it was running before
pid=$(get_pid org.freedesktop.UPower)
if [ -n "$pid" ]; then
kill $pid 2>/dev/null || true
upower --version >/dev/null || true # will trigger through D-Bus activation
fi
fi
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