preinst is in noweb 2.11b-11.
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 | #!/bin/sh -e
# Prepare to move a conffile without triggering a dpkg question
# http://www.dpkg.org/dpkg/ConffileHandling
prep_mv_conffile() {
CONFFILE="$1"
if [ -e "$CONFFILE" ]; then
md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
old_md5sum="`sed -n -e \"/^Conffiles:/,/^[^ ]/{\\\\' $CONFFILE'{s/.* //;p}}\" /var/lib/dpkg/status`"
if [ "$md5sum" = "$old_md5sum" ]; then
rm -f "$CONFFILE"
fi
fi
}
case "$1" in
install|upgrade)
if dpkg --compare-versions "$2" le "2.11b-3"; then
prep_mv_conffile "/etc/emacs/site-start.d/50nowebm.el"
fi
esac
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