preinst is in viewpdf.app 1:0.2dfsg1-5.
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 | #!/bin/sh
# dpkg will not replace a real directory with a symlink.
# FIXME: Remove this file during the wheezy+1 cycle.
set -e
set -u
RESDIR=/usr/lib/GNUstep/Applications/ViewPDF.app/Resources
if [ "$1" = "upgrade" ] || [ "$1" = "install" ]; then
if [ -d $RESDIR ] && [ ! -L $RESDIR ]; then
rm -rf $RESDIR
fi
fi
exit 0
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