-dry_run=false
-# mostly for testing
-case $1 in
- -c) conf_only=true ;;
- -n) dry_run=true ;;
- ?*) echo "$0: error: unsupported arg"; exit 1 ;;
-esac
-
-# background on timezones. with short/long, timestamps use local time.
-# for long, if your local time moves backwards, by moving timezones or
-# for an hour when daylight savings changes it, you will temporarily get
-# a more aggressive retention policy for the overlapping period, and
-# vice versa for the opposite timezone move. The alternative is using
-# long-iso, which puts timezone info into the timestamp, which means
-# that instead of shifting time, you shift the start of day/week/month
-# which is used for retention to your new local time, which means for
-# example, if you moved forward by 8 hours, the daily/weekly/monthly
-# retention will be 8 hours more aggressive since midnight is at a new
-# time, unless you fake the timzeone using the TZ env variable.
-# However, in the short term, there will be no inconsistencies.
-# I don't see any problem with shifting when the day starts for
-# retention, so I'm using long-iso.
+dry_run=false # mostly for testing
+resume_arg=
+rate_limit=no
+verbose=false
+
+default_args_file=/etc/btrbk-run.conf
+if [[ -s $default_args_file ]]; then
+ set -- $(< $default_args_file) "$@"
+fi
+
+temp=$(getopt -l help cl:m:nprt:vh "$@") || usage 1
+eval set -- "$temp"
+while true; do
+ case $1 in
+ # only creates the config file, does not run btrbk
+ -c) conf_only=true; shift ;;
+ -l) rate_limit=$2; shift 2 ;;
+ -m) IFS=, mountpoints=($2); unset IFS; shift 2 ;;
+ -n) dry_run=true; dry_run_arg=-n; shift ;;
+ -p) progress_arg="--progress"; shift ;;
+ # btrbk arg: Resume only. Skips snapshot creation.
+ -r) resume_arg=-r; shift ;;
+ # empty is valid for just doing local snapshot. we have default hosts
+ # we will populate
+ -t) IFS=, targets=($2); unset IFS; shift 2 ;;
+ -v) verbose=true; verbose_arg=-v; shift ;;
+ -h|--help) usage ;;
+ --) shift; break ;;
+ *) echo "$0: Internal error!" ; exit 1 ;;
+ esac
+done
+
+if [[ -s $default_args_file ]]; then
+ echo "$0: warning: default btrbk-run options set in $default_args_file (sleeping 5 seconds):"
+ cat $default_args_file
+ sleep 5
+fi
+
+echo -e "$0: options: conf_only=$conf_only\ndry_run=$dry_run\nresume_arg=$resume_arg\nrate_limit=$rate_limit\nverbose=$verbose"
+
+# set default targets
+if [[ ! -v targets ]]; then
+ case $HOSTNAME in
+ x2|kw)
+ if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
+ targets=($HOME_DOMAIN)
+ fi
+ ;;
+ tp)
+ targets=(frodo)
+ if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
+ if timeout -s 9 10 ssh x2 :; then
+ targets+=(x2)
+ fi
+ fi
+ ;;
+ frodo)
+ targets=()
+ ;;
+ *)
+ echo "$0: error: no default targets for this host, use -t"
+ exit 1
+ ;;
+ esac
+fi
+
+echo "targets: ${targets[*]}"
+
+
+
+if (( ${#mountpoints[@]} )); then
+ for mp in ${mountpoints[@]}; do
+ if [[ -e /nocow/btrfs-stale/$mp ]]; then
+ echo "$0: warning: $mp stale. Sleeping for 3 seconds in case you want to cancel."
+ sleep 3
+ fi
+ done
+else # set default mountpoints
+ case $HOSTNAME in
+ frodo)
+ prospective_mps=(/i)
+ ;;
+ *)
+ prospective_mps=(/a /q)
+ if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
+ prospective_mps+=(/o)
+ fi
+ ;;
+ esac
+ case ${targets[0]} in
+ kw|kww)
+ prospective_mps=(/a)
+ ;;
+ esac
+
+ for mp in ${prospective_mps[@]}; do # default mountpoints to sync
+ if [[ -e /nocow/btrfs-stale/$mp ]]; then
+ echo "$0: warning: $mp stale, not adding to default mountpoints"
+ continue
+ fi
+ if awk '{print $2}' /etc/fstab | grep -xF $mp &>/dev/null; then
+ mountpoints+=($mp)
+ fi
+ done
+fi
+
+echo "mountpoints: ${mountpoints[*]}"
+
+##### end command line parsing ########
+
+rsync-dirs() {
+ local host=$1
+ local path=$2
+ m rsync $dry_run_arg -ahi --relative --delete "$path" "root@$host:/"
+}
+
+vol-conf() {
+ cat >>/etc/btrbk.conf <<EOF
+volume $vol
+EOF
+}
+sub-conf() {
+ cat >>/etc/btrbk.conf <<EOF
+subvolume $sub
+EOF
+}
+tg-conf() {
+ cat >>/etc/btrbk.conf <<EOF
+target send-receive ssh://$tg$vol/btrbk
+EOF
+}
+m() { printf "%s: %s\n" "${0##*/}" "$*"; "$@"; }