#!/usr/bin/bash
#----------------------------------------------------------------------

CT_DIR=${CT_DIR:=/etc/pve/lxc/}



#----------------------------------------------------------------------
# XXX this is quite generic, might be a good idea to move this to a 
# 		seporate lib/file...

# Execute (optionally) and print a command.
#
#QUIET=
#DRY_RUN=
ECHO_PREFIX="### "
@(){
	if [ -z $DRY_RUN ] ; then
		! [ $QUIET ] \
			&& echo "${ECHO_PREFIX}$@"
		$@
	else
		echo $@
	fi
	return $?
}



#----------------------------------------------------------------------
# Fill section...
#
# XXX this is quite generic -- move to a more logical place...

fillsection(){ (
	usage(){
		echo "Usage:"
		echo "    ${FUNCNAME[0]} [-h]"
		echo "    ${FUNCNAME[0]} [-r] NAME FILE [CONTENT]"
		echo
	}
	while true ; do
		case $1 in
			-h|--help)
				usage
				echo "Options:"
				#	  .	  .					.
				echo "    -h | --help       print this help message and exit."
				echo "    -r | --return     replace section markers with CONTENT."
				echo
				return 0
				;;
			-r|--replace)
				local replace=1
				shift
				;;

			*)
				break
				;;
		esac
	done
	if [[ $# < 2 ]] ; then
		usage
		return 1
	fi

	name=$1
	file=$2
	content=$3
	content=${content:=/dev/stdin}

	# print file upto section marker...
	if [ $replace ] ; then
		sed "/${name^^} BEGIN/q" "$file" | sed '$d'
	else
		sed "/${name^^} BEGIN/q" "$file"
	fi
	# print content...
	cat $content
	# print file from section end marker...
	if [ $replace ] ; then
		sed -ne "/${name^^} END/,$ p" "$file" | sed '1d' 
	else
		sed -ne "/${name^^} END/,$ p" "$file"
	fi
) }



#----------------------------------------------------------------------
# CT hostname <-> CT id...

ct2hostname(){
	local ct=${CT_DIR}/${1}.conf
	local host=$(cat $ct | grep hostname | head -1)
	echo ${host/hostname: /}
}

hostname2ct(){
	if [ -e "${CT_DIR}/${1}.conf" ] ; then
		echo $1
	fi
	local running=$2
	running=${running:=any}
	local ct
	local host
	for ct in "${CT_DIR}"/*.conf ; do
		host=$(cat $ct | grep hostname | head -1)
		host=${host/hostname: /}
		if [ "$host" = $1 ] ; then
			ct=${ct#${CT_DIR}}
			ct=${ct%.conf}
			ct=${ct#\/}
			# filter results if needed...
			if [ $running = "any" ] ; then
				echo $ct
			else
				local status=`pct status $ct`
				if [ "$running" = "${status/status: /}" ] ; then
					echo $ct
				fi
			fi
		fi
	done
}


#----------------------------------------------------------------------

normpath(){
	echo $1 \
		| sed \
			-e 's/\/\+/\//g' \
			-e 's/\/.\//\//g' \
			-e 's/[^\/]\+\/\.\.//g' \
			-e 's/\/\+/\//g' \
			-e 's/\/\.$/\//g'
}


#----------------------------------------------------------------------
# vim:set ts=4 sw=4 nowrap :