mountjac

#!/bin/sh
myname=`basename "$0"`
usage() {
    echo "Usage: $myname" >&2
    exit 2
}

user=`id -un`
jethost=lingen-vsf-pub-2.jet.uk
masthost=mastpcs3.mastdev.l

main() {
    test $# -eq 0 || usage
    case "$myname" in
	mountjac)
	    do_mount "/jachome/$user" "$HOME/jachome"
	    ;;
	mountsol)
	    do_mount "/solhome/$user" "$HOME/solhome"
	    ;;
	mountmeta)
	    do_mount "/home/codas/meta" "$HOME/meta"
	    ;;
	mountmast)
	    do_mount "/devhome/chah" "$HOME/mast" "$masthost"
	    ;;
	mountpcs)
	    do_mount "/net/mastpcs3/work/chah/pcs" "$HOME/pcs" "$masthost"
	    ;;
	mountchain1)
	    do_mount /home/chain1 /home/chain1
	    do_mount /common/chain1 /common/chain1
	    ;;
	*)
	    echo "$myname: Unknown invocation name" >$2
	    exit 2
	    ;;
    esac
}

#host=heimdall001.jet.uk

do_mount() {
    src=$1; dest=$2; host=${3-$jethost}
    mounted=`mount -t fuse.sshfs | fgrep " on $dest " | cut -d' ' -f1`
    if [ -n "$mounted" ]; then
	# Yes, but... underlying connection may have failed
	err=`ls -d "$dest" 2>&1 >/dev/null`
	case "$err" in
	    *"Transport endpoint is not connected"*)
		fusermount -u "$dest"
		;;
	    "")
		echo "$myname: $mounted already mounted on $dest" >&2
		exit 1
		;;
	    *)
		echo "$err" >&2
		exit 1
	esac
    fi
    # "ServerAliveInterval=15" may avoid "Transport endpoint disconnected"
    sshfs "$host:$src" "$dest" -o reconnect -o ServerAliveInterval=15 || exit $?
}

# To unmount:
#  fusermount -u "$dest"

main "$@"