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Date: Thu, 22 Apr 2010 14:54:02 +0200
From: Lars Engels <lars.engels@0x20.net>
To: Eitan Adler <eitanadlerlist@gmail.com>
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Cc: freebsd-hackers@freebsd.org, Ruben de Groot <mail25@bzerk.org>,
	Doug Barton <dougb@freebsd.org>,
	"Aryeh M. Friedman" <aryeh.friedman@gmail.com>
Subject: Re: regenerating /var/db/pkg
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On Thu, Apr 22, 2010 at 03:21:16PM +0300, Eitan Adler wrote:
> >
> > Just asking opinions, if people want this, I'll make a patch and
> > file a PR.
> >
>=20
> Is this script correct?
>=20
> #!/bin/sh
> #
> # $FreeBSD: src/etc/periodic/daily/210.backup-aliases,v 1.6.36.1.2.1
> 2009/10/25 01:10:29 kensmith Exp $
> #
>=20
> # If there is a global system configuration file, suck it in.
> #
> if [ -r /etc/defaults/periodic.conf ]
> then
>     . /etc/defaults/periodic.conf
>     source_periodic_confs
> fi
>=20
> bak=3D/var/backups
> db_loc=3D"/var/db/pkg";
> bk_loc=3D"/$bak/pkgdb.bak.tar"
>=20
> case "$daily_backup_pkgdb_enable" in
>     [Yy][Ee][Ss])
> 	if [ ! -d $db_loc ]
> 	then
> 	    echo '$daily_backup_pkgdb_enable is enabled but' \
> 		"$db_loc doesn't exist"
> 	    rc=3D2
> 	else
> 	    rc=3D0
>=20
> 	    echo ""
> 	    echo "Backing up mail aliases:"
>=20
> 	    if [ ! -f $bk_loc ]
> 	    then
> 		echo "no $bk_loc"
> 		tar -cjf $bk_loc $db_loc || rc=3D3
> 	    fi
> 	fi;;
>=20
>     *)  rc=3D0;;
> esac
>=20
> exit $rc

Hmm, I guess you shouldn't backup /var/foo to /var/bar. If /var is lost,
your backup is gone, too.

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