dry_run=false # mostly for testing
rate_limit=no
verbose=true; verbose_arg=-v
+force=false
if [[ $INVOCATION_ID ]]; then
# INVOCATION_ID means running as a systemd service. we cant show progress in this case,
# but if we pass the arg, it will insert mbuffer into the command.
fast=false
kd_spread_maybe=false
orig_args=("$@")
-temp=$(getopt -l cron,fast,pull-reexec,help 23ceikl:m:npqrs:t:vh "$@") || usage 1
+temp=$(getopt -l cron,fast,pull-reexec,help 23cefikl:m:npqrs:t:vh "$@") || usage 1
eval set -- "$temp"
while true; do
case $1 in
-c) conf_only=true ;;
# quit early, just btrbk, no extra remounting etc.
-e) early=true ;;
+ -f) force=true ;;
# skip various checks. when we run twice in a row for
# switch mail-host, no need to repeat the same checks again.
--fast) fast=true ;;
shift
done
+cmd_arg="$1"
+
if $kd_spread_maybe; then
- if [[ $1 && $1 != resume ]]; then
+ if [[ $cmd_arg && $cmd_arg != resume ]]; then
die "dont pass -k without resume or empty run arg"
fi
cmd_arg=resume
fi
-
-cmd_arg=${1:-run}
+if [[ ! $cmd_arg ]]; then
+ cmd_arg=run
+fi
std_preserve="36h 14d 8w 24m"
kd_spread=false
+if ! $cron && $kd_spread_maybe; then
+ kd_spread=true
+fi
# set default targets
if [[ ! -v targets && ! $source ]]; then
if $cron; then
if [[ $MAIL_HOST == x3 ]]; then
kd_spread=true
else
+ # x3 was the mail host, but it moved to some other machine
+ # without updating us yet.
echo "MAIL_HOST=$MAIL_HOST, nothing to do"
mexit 0
fi
fi
done
elif $at_work; then
- if ping -q -c1 -w1 iank.vpn.office.fsf.org &>/dev/null; then
- targets+=(iank.vpn.office.fsf.org)
- else
- targets+=(i.b8.nz)
- fi
+ targets+=(i.b8.nz)
for h in x2 x3 kw; do
if [[ $HOSTNAME == "$h" ]]; then
continue
esac
fi
-if $verbose; then
- printf "$pre options: conf_only=%s\ndry_run=%s\nrate_limit=%s\nverbose=%s\ncmd_arg=%s" "$conf_only" "$dry_run" "$rate_limit" "$verbose" "$cmd_arg"
-fi
-
-
-if [[ -v targets ]]; then
- echo "targets: ${targets[*]}"
-fi
-
-if [[ $source ]]; then
- echo "source: $source"
-fi
-
if [[ ${mountpoints[0]} ]]; then
for mp in ${mountpoints[@]}; do
if [[ -e /nocow/btrfs-stale/$mp ]]; then
die didnt get mountpoint arg and had no defaults
fi
-echo "mountpoints: ${mountpoints[*]}"
-
##### end command line parsing ########
+#### begin pre-checks #####
+
# todo: this has a timing problem, since btrbk.timer could activate the service after this check.
if ! $fast && [[ $source ]]; then
if [[ $(ssh $source ps --no-headers -o comm 1) == systemd ]]; then
fi
fi
+if ! command -v btrbk &>/dev/null; then
+ die "error: no btrbk binary found"
+fi
+
+
+#### end pre-checks #####
+
+mkdir -p /var/log/btrbk
+# The journal doesnt go back to my oldest backups, and I've found myself
+# wanting older logs. Not going to bother expiring old logs, since it is
+# fine if they go back years.
+log_path=/var/log/btrbk/$(date +%F_%T%:::z).log
+echo copying output to $log_path
+exec &> >(ts "%F %T" | tee -a $log_path)
+
+
+if $verbose; then
+ printf "$pre options: conf_only=%s\ndry_run=%s\nrate_limit=%s\nverbose=%s\ncmd_arg=%s" "$conf_only" "$dry_run" "$rate_limit" "$verbose" "$cmd_arg"
+fi
+
+if [[ -v targets ]]; then
+ echo "targets: ${targets[*]}"
+fi
+
+if [[ $source ]]; then
+ echo "source: $source"
+fi
+
+echo "mountpoints: ${mountpoints[*]}"
+
+
+
# pull_reexec stops us from getting into an infinite loop if there is some
# kind of weird problem
pulla=false
fi
-if ! command -v btrbk &>/dev/null; then
- die "error: no btrbk binary found"
-fi
-
if ! $fast; then
# if our mountpoints are from stale snapshots,
# it doesn't make sense to do a backup.
# which is good enough.
#
# This is a separate ssh because the command can fail and thatis ok.
- if $cron; then
+ if $cron && ! $force; then
locked=false
- if lock_info=$(timeout -s 9 6 ssh $h DISPLAY=:0 xscreensaver-command -timer); then
+ if lock_info=$(timeout -s 9 6 ssh $h DISPLAY=:0 xscreensaver-command -time); then
if [[ $lock_info != *non-blanked* ]]; then
locked=true
fi
else
locked=true
fi
- if $locked; then
+ if ! $locked; then
# Ignore this host. i sometimes use a non-main machine for
# testing or web browsing, knowing that everything will be wiped
# by the next backup, but I dont want it to happen as Im using
# if one disk had less space.
# for now, keeping them equal.
snapshot_preserve $std_preserve
-snapshot_preserve_min 2h
+snapshot_preserve_min 6h
snapshot_dir btrbk
# so, total backups = ~58
target_preserve $std_preserve
-target_preserve_min 2h
+target_preserve_min 6h
# i tried this when investigating: clone no source subvolume found error
#incremental_prefs sro:1 srn:1 sao san:1 aro:1 arn:1
if [[ $ret == 0 ]]; then
for tg in ${targets[@]}; do
- :
- #ssh root@$tg /a/exe/mail-backup-clean
+ h=$(ssh $tg hostname)
+ rsync -a -f"- */" -f"+ *" /var/log/btrbk/ root@$tg:/var/log/btrbk/$tg
+ ssh root@$tg /usr/local/bin/mail-backup-clean
done
+ if [[ $source ]]; then
+ rsync -a -f"- */" -f"+ *" $source:/var/log/btrbk/ /var/log/btrbk/$source
+ fi
fi
mexit $ret