preinst is in schroot 1.6.10-1ubuntu3.
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 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | #! /bin/sh
# preinst script for schroot
#
# see: dh_installdeb(1)
set -e
# summary of how this script can be called:
# * <new-preinst> `install'
# * <new-preinst> `install' <old-version>
# * <new-preinst> `upgrade' <old-version>
# * <old-preinst> `abort-upgrade' <new-version>
# Remove a no-longer used conffile
rm_conffile() {
PKGNAME="$1"
CONFFILE="$2"
if [ -e "$CONFFILE" ]; then
md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
old_md5sum="`dpkg-query -W -f='${Conffiles}' $PKGNAME | sed -n -e \"\\\\' $CONFFILE'{s/ obsolete$//;s/.* //p}\"`"
if [ "$md5sum" != "$old_md5sum" ]; then
echo "Obsolete conffile $CONFFILE has been modified by you."
echo "Saving as $CONFFILE.dpkg-old ..."
mv -f "$CONFFILE" "$CONFFILE".dpkg-old
else
echo "Removing obsolete conffile $CONFFILE ..."
rm -f "$CONFFILE"
fi
fi
}
# Prepare to move a conffile without triggering a dpkg question
prep_mv_conffile() {
PACKAGE="$1"
CONFFILE="$2"
if [ -e "$CONFFILE" ]; then
md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
old_md5sum="`dpkg-query -W -f='${Conffiles}' $PACKAGE | sed -n -e \"\\\\' $CONFFILE'{s/.* //;p}\"`"
if [ "$md5sum" = "$old_md5sum" ]; then
rm -f "$CONFFILE"
fi
fi
}
case "$1" in
install|upgrade)
if dpkg --compare-versions "$2" lt "1.5.2-1"; then
rm_conffile "schroot" "/etc/schroot/buildd/config"
rm_conffile "schroot" "/etc/schroot/default/config"
rm_conffile "schroot" "/etc/schroot/desktop/config"
rm_conffile "schroot" "/etc/schroot/minimal/config"
rm_conffile "schroot" "/etc/schroot/sbuild/config"
fi
if dpkg --compare-versions "$2" lt "1.6.1-1"; then
LINKS="/etc/schroot/copyfiles-defaults /etc/schroot/mount-defaults /etc/schroot/nssdatabases-defaults /etc/schroot/script-defaults"
for link in $LINKS; do
[ -L "$link" ] && rm -f "$link"
done
fi
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
exit 0
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