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#!/bin/sh

set -e

# We generate several files during the postinst, and we don't want
#	them to be readable only by root.
umask 022

if [ configure = "$1" -a -z "$2" ] # only do this if not upgrading
then
    # add the sambashare group; --force: ok if group already exist
    groupadd --force --system sambashare
    dir=/var/lib/samba/usershares
    [ -d $dir ] || install -d -m 1770 -g sambashare $dir
fi

# in 4.17.4+dfsg-3 we stopped masking services, unmask them here
if [ configure = "$1" ] && dpkg --compare-versions "$2" lt-nl 2:4.17.4+dfsg-3~
then
    for s in nmbd smbd samba-ad-dc; do
	if [ /dev/null = $(realpath /etc/systemd/system/$s.service) ]
	then
	    rm -f /etc/systemd/system/$s.service
	fi
    done
fi

# remove old spool directory (point it to /var/tmp if in use)
if [ configure = "$1" ] && dpkg --compare-versions "$2" lt-nl 2:4.17.4+dfsg-3~
then
    dir=/var/spool/samba
    pat="^(\\s*path\\s*=\\s*)$dir"
    if grep -q -E "$pat\\s*$" /etc/samba/smb.conf ; then
	echo "WARNING: fixing smb.conf, replacing $dir with /var/tmp" >&2
	sed -ri "s|$pat\\s*$|\\1/var/tmp|" /etc/samba/smb.conf
    fi
    if [ -d $dir -a ! -L $dir ]; then
	echo "W: removing old samba print spool $dir" >&2
	rm -rf $dir
    fi
    # we can still have it in an include file (or have a subdir there?)
    if testparm -s 2>/dev/null | grep -E "$pat\\b" >&2; then
	echo "WARNING: $dir is still referenced in smb.conf. Please update smb.conf" >&2
	if [ ! -L $dir ]; then
	    echo "WARNING: redirecting $dir to /var/tmp" >&2
	    ln -s ../tmp $dir
	fi
    fi
fi

#DEBHELPER#

# remove msg.sock/ directory (moved to /run/samba/)
dir=/var/lib/samba/private/msg.sock
if [ -d $dir -a configure = "$1" ] &&
   dpkg --compare-versions "$2" lt-nl 2:4.16.0+dfsg-7~
then
    rm -f $dir/*
    rmdir $dir
fi

exit 0