default_args_file=/etc/btrbk-run.conf
if [[ -s $default_args_file ]]; then
+ # shellcheck disable=SC2046 # we want word splitting
set -- $(< $default_args_file) "$@"
# i havent used this feature yet, so warn about it
echo "$0: warning: default btrbk-run options set in $default_args_file (sleeping 5 seconds):"
targets=()
early=false
cron=false
+fast=false
orig_args=("$@")
-temp=$(getopt -l cron,pull-reexec,help 23ceil:m:npqrs:t:vh "$@") || usage 1
+temp=$(getopt -l cron,fast,pull-reexec,help 23ceil:m:npqrs:t:vh "$@") || 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 ;;
+ # 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 ;;
-i) incremental_strict=true ;;
# bytes per second, suffix k m g
-l) rate_limit=$2; shift ;;
if [[ ! -v targets && ! $source ]]; then
if $cron; then
if [[ $HOSTNAME != "$MAIL_HOST" ]]; then
- if [[ $HOSTNAME == kd && $MAIL_HOST = x2 ]]; then
- kd_spread=true
+ if [[ $HOSTNAME == kd && $MAIL_HOST == x3 ]]; then
+ if ping -q -c1 -w1 x3.office.fsf.org &>/dev/null; then
+ work_host=x3.office.fsf.org
+ elif ping -q -c1 -w1 x3wg.b8.nz &>/dev/null; then
+ work_host=x3wg.b8.nz
+ fi
+ if [[ $work_host ]]; then
+ source_state="$(ssh $work_host cat /a/bin/bash_unpublished/source-state)"
+ eval "$source_state"
+ if [[ $MAIL_HOST == x3 ]]; then
+ kd_spread=true
+ else
+ echo "MAIL_HOST=$MAIL_HOST, nothing to do"
+ mexit 0
+ fi
+ else
+ echo "MAIL_HOST=$MAIL_HOST, nothing to do"
+ mexit 0
+ fi
else
echo "MAIL_HOST=$MAIL_HOST, nothing to do"
mexit 0
fi
fi
- # x2 at home atm
- kd_spread=false
-
at_work=false
at_home=false
;;&
*)
if $at_home; then
- # main work machine
- if ping -q -c1 -w1 x3.office.fsf.org &>/dev/null; then
- targets+=(x3.office.fsf.org)
- else
- targets+=(x3wg.b8.nz)
+ if ! $kd_spread; then
+ # main work machine
+ if ping -q -c1 -w1 x3.office.fsf.org &>/dev/null; then
+ targets+=(x3.office.fsf.org)
+ else
+ targets+=(x3wg.b8.nz)
+ fi
fi
for h in frodo kd; do
if [[ $HOSTNAME == "$h" ]]; then
##### end command line parsing ########
-if [[ $source ]]; then
+if ! $fast && [[ $source ]]; then
if [[ $(ssh $source ps --no-headers -o comm 1) == systemd ]]; then
status=$(ssh $source systemctl is-active btrbk.service) || : # normally returns 3
case $status in
if ! command -v btrbk &>/dev/null; then
die "error: no btrbk binary found"
fi
-# if our mountpoints are from stale snapshots,
-# it doesn't make sense to do a backup.
-m check-subvol-stale ${mountpoints[@]} || die "found stale mountpoints in ${mountpoints[*]}"
-# for an initial run, btrbk requires the dir to exist.
-mkdir -p /mnt/{root,o}/btrbk
+if ! $fast; then
+ # if our mountpoints are from stale snapshots,
+ # it doesn't make sense to do a backup.
+ m check-subvol-stale ${mountpoints[@]} || die "found stale mountpoints in ${mountpoints[*]}"
+
+ # for an initial run, btrbk requires the dir to exist.
+ mkdir -p /mnt/{root,o}/btrbk
+fi
local_zone=$(date +%z)
if [[ $source ]]; then
- if ! zone=$(ssh root@$source date +%z); then
- if $conf_only; then
- echo "$0: warning: failed to ssh to root@$source"
- else
- die failed to ssh to root@$source
+ if $fast; then
+ zone=$local_zone
+ else
+ if ! zone=$(ssh root@$source date +%z); then
+ if $conf_only; then
+ echo "$0: warning: failed to ssh to root@$source"
+ else
+ die failed to ssh to root@$source
+ fi
+ fi
+ if [[ $zone != "$local_zone" ]]; then
+ die "error: dont confuse yourself with multiple time zones. $h has different timezone than localhost"
fi
fi
- if [[ $zone != "$local_zone" ]]; then
- die "error: dont confuse yourself with multiple time zones. $h has different timezone than localhost"
- fi
-
else
sshable=()
sshfail=()
min_idle_ms=$((1000 * 60 * 15))
for h in ${targets[@]}; do
- if remote_info=( $(timeout -s 9 6 ssh root@$h "mkdir -p /mnt/root/btrbk /mnt/o/btrbk && date +%z && df --output=size,pcent / | tail -n1") ); then
+ if $fast || $conf_only; then
+ # Use some typical values in this case
+ root_size=$(( 1024 * 1024 * 2000 )) #2tb
+ percent_used=10
+ zone=$(date +%z)
+ elif tmpstr=$(timeout -s 9 6 ssh root@$h "mkdir -p /mnt/root/btrbk /mnt/o/btrbk && date +%z && df --output=size,pcent / | tail -n1"); then
+ IFS=" " read -r -a remote_info <<<"$tmpstr"
+
zone=${remote_info[0]}
root_size=${remote_info[1]}
percent_used=${remote_info[2]%%%}
if (( ${#remote_info[@]} != 3 )); then
die "error: didnt get 3 fields in test ssh to target $h. investigate"
fi
- elif $conf_only; then
- # Use some typical values in this case
- root_size=$(( 1024 * 1024 * 2000 )) #2tb
- percent_used=10
- zone=$(date +%z)
else
sshfail+=($h)
continue
target_preserve $std_preserve
target_preserve_min 2h
+# i tried this when investigating: clone no source subvolume found error
+#incremental_prefs sro:1 srn:1 sao san:1 aro:1 arn:1
+
# if something fails and it's not obvious, try doing
# btrbk -l debug -v dryrun
mp_count=${#mountpoints[@]}
for (( i=0; i < mp_count - 1 ; i++ )); do
if [[ ${mountpoints[i]} == /q ]]; then
- unset mountpoints[i]
+ unset "mountpoints[i]"
mountpoints+=(/q)
fi
done
done
fi
+subvols=()
+for mp in "${mountpoints[@]}"; do
+ subvols+=("${mp##*/}")
+done
if [[ $source ]]; then
- m mount-latest-subvol
+ m mount-latest-subvol "${subvols[@]}"
else
m /a/exe/mount-latest-remote ${targets[@]}
fi
iankelling.org / git / distro-setup / blobdiff