# ------------------------------------------------------------------------------
# Configure NFS mounts
# This file is part of the init.sh project
# Copyright (c) 2019-2023 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
# ------------------------------------------------------------------------------
# This file is distributed under 3-clause BSD license.
# The complete license agreement can be obtained at:
# https://opensource.org/licenses/BSD-3-Clause
# ------------------------------------------------------------------------------
# Variable list:
#  * NFS_MOUNTS: list of mounts used in other variable names
#  * MOUNTSERV_<mnt>: server acces to mount <mnt>
#  * MOUNTPOINT_<mnt>: mount point for <mnt>
#  * MOUNTOPTS_<mnt>: optionnaly, extra mount options for <mnt>
#       ("defaults,_netdev" by default)
# ------------------------------------------------------------------------------

# Module version
export VER_conf_nfs="0.0.2"

# Module's code
conf_nfs()
{
    pkginst nfs-common
    for mnt in $NFS_MOUNTS; do
	local mnt_serv=${!MOUNTSERV_$mnt}
	local mnt_point="${!MOUNTPOINT_$mnt}"
	local mnt_opts=${!MOUNTOPTS_$mnt:-"defaults,_netdev"}
	if [[ -z $(grep "$mnt_serv" /etc/fstab) ]]; then
	    echo -e "${mnt_serv}\t${mnt_point}\tnfs4\t${mnt_opts}\t0\t0" >> /etc/fstab
	fi
	unset mnt_serv
	if [[ ! -d $mnt_point ]]; then
	    mkdir -pv "$mnt_point"
	fi
	mount "$mnt_point"
	unset mnt_point
    done
}

# Preliminary checks code for the module
precheck_conf_nfs()
{
    if [[ -n $NFS_MOUNTS ]]; then
	for mnt in $NFS_MOUNTS; do
	    if [[ -z $(eval echo \$MOUNTSERV_$mnt) ]]; then
		prnt E "The server mount for $NFS_MOUNT is not declared."
		die 182
	    fi
	    if [[ -z $(eval echo \$MOUNTPOINT_$mnt) ]]; then
		prnt E "The mountpoint for $NFS_MOUNT is not declared."
		die 183
	    fi
	    prnt I "NFS server $(eval echo \$MOUNTSERV_$mnt) will be mounted on $(eval echo \$MOUNTPOINT_$mnt)."
	done
    fi
}

# Public functions might be exported
export -f conf_nfs
export -f precheck_conf_nfs

# EOF