#!/bin/sh
# This scripts knows about every possible distribution (well, it should)
# It is passed a vserver name and a key (a command). The key represent a task.
# It executes the command and output on stdout.
# For example
# distrib-info vserver1 pkgversion
# If vserver1 is a redhat system, it executes
# rpm -qa --queryformat "%{name}=%{version}-%{release}
USR_SBIN=/usr/sbin
USR_LIB_VSERVER=/usr/lib/vserver

if [ "$1" = "" ] ; then
	echo distrib-info vserver-name command [ args ... ] >&2
	echo Commands are: >&2
	echo dumpfiles: Shows all files owned by a package >&2
	echo pkgversion: reports all packages and their version/release >&2
	echo unifiles: reports all unify-able file of a package >&2
	exit 1
fi
if [ "$1" = "/" ] ; then
	DISTDIR=/
	CHROOTCMD=
elif [ -d "$1" ] ; then
	DISTDIR=$1
	CHROOTCMD="/usr/sbin/chroot $DISTDIR"
else
	VSERVERDIR=""
	eval `$USR_LIB_VSERVER/printconf.sh --quote $1`
	if [ "$VSERVERDIR" = "" ] ; then
		exit 1
	fi
	DISTDIR=$VSERVERDIR
	CHROOTCMD="/usr/sbin/chroot $DISTDIR"
fi
KEY=$2
shift
shift
if [ -f $DISTDIR/etc/redhat-release -o -f $DISTDIR/etc/mandrake-release ] ; then
	case $KEY in
	pkgversion)
		$CHROOTCMD /bin/rpm -qa --queryformat "%{name}=%{version}-%{release}\n"
		;;
	unifiles)
		# We remove /etc and /var/log to make sure no special file
		# there will be unified
		$CHROOTCMD /bin/rpm -ql --dump $* \
			| $USR_LIB_VSERVER/parserpmdump /etc/
		;;
	dumpfiles)
		$CHROOTCMD /bin/rpm -ql $*
		;;
	*)
		echo unknown request $KEY >&2
		;;
	esac
else
	echo Distribution not supported yet >&2
fi