backup-home

#!/bin/sh

usage()
{
    cat >&2 <<__EOF__
Usage: $(basename $0) <backup-dir>

Options:
  backup-dir     -- Name of the backup directory, e.g. /mnt/laptop.
__EOF__
    exit ${1-1}
}

log()
{
    echo "$(basename $0): $1" >&2
}

export PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin

trap 'rm -f $EXCLUDES; exit 0' SIGINT SIGHUP SIGTERM EXIT

if [ $# -ne 1 ]; then
    usage
fi

DSTDIR="$1"
if [ ! -d "$DSTDIR" ]; then
    log "backup-dir must be an existing directory. Exiting."
    exit 1
fi

EXCLUDES=$(mktemp -t $(basename $0))
if [ -z "$EXCLUDES" ]; then
    log "Failed to create temporary file. Exiting."
    exit 1
fi

cat <<__EOF__ > $EXCLUDES
dl
mnt
src/*-obj/
src/freebsd-ports/distfiles/*
tmp
var
vbox
__EOF__

rsync -akv --safe-links --exclude-from=$EXCLUDES $HOME/* "$DSTDIR"/${USER}-$(hostname -s)