# todo: if we cancel in the middle of a btrfs send, then run again immediately, the received subvolume doesn't get a Received UUID: field, and we won't mount it. Need to figure out a solution that will fix this.
-set -eE -o pipefail
-trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
-[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
+[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
+source /usr/local/lib/err
usage() {
cat <<'EOF'
}
-m() { if $verbose; then printf "$pre %s\n" "$*"; fi; "$@"; }
-die() { printf "$pre %s\n" "$*" >&2; exit 1; }
+pre="${0##*/}: "
+m() { if $verbose; then printf "$pre%s\n" "$*"; fi; "$@"; }
+e() { printf "$pre%s\n" "$*"; }
+die() { printf "$pre%s\n" "$*" >&2; exit 1; }
# latest $MAIL_HOST
-if [[ -e /b/bash_unpublished/source-semi-priv ]]; then
- source /b/bash_unpublished/source-semi-priv
+if [[ -e /b/bash_unpublished/source-state ]]; then
+ source /b/bash_unpublished/source-state
fi
# note q is owned by root:1000
sleep 5
fi
-pre="${0##*/}:"
cron=false
orig_args=("$@")
temp=$(getopt -l cron,pull-reexec,help cl:m:npqs:t:vh "$@") || usage 1
esac
done
-# usefull commands are resume and archive
+# only tested commands are resume and archive
cmd_arg=${1:-run}
+case $cmd_arg in
+ run|resume|archive) : ;;
+ *) die "untested command arg" ;;
+esac
+
+if (( $# > 1 )); then
+ die: "only 1 nonoption arg is supported"
+fi
+
if [[ -v targets && $source ]]; then
die "error: -t and -s are mutually exclusive"
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" "$cmd_arg"
+ printf "options: conf_only=%s\ndry_run=%s\nrate_limit=%s\nverbose=%s\ncmd_arg=%s" "$conf_only" "$dry_run" "$rate_limit" "$verbose" "$cmd_arg"
fi
### end options parsing
# set default targets
if [[ ! -v targets && ! $source ]]; then
if [[ $HOSTNAME != "$MAIL_HOST" ]] && $cron ; then
- echo "We are not MAIL_HOST, nothing to do"
+ echo "MAIL_HOST=$MAIL_HOST, nothing to do"
exit 0
fi
+
+ at_work=false
+
case $HOSTNAME in
- kw|x2)
- if ping -q -c1 -w1 iank.vpn.office.fsf.org &>/dev/null; then
+ kw)
+ at_work=true
+ ;;&
+ x2|x3)
+ if ping -q -c1 -w1 hal.office.fsf.org \
+ && ip n show 192.168.0.26 | grep . &>/dev/null; then
+ at_work=true
+ fi
+ ;;&
+ kw|x2|x3)
+ if $at_work && ping -q -c1 -w1 iank.vpn.office.fsf.org &>/dev/null; then
home=iank.vpn.office.fsf.org
else
- home=$HOME_DOMAIN
+ home=b8.nz
fi
;;&
kw)
targets=($home x2)
;;
- x2)
+ x2|x3)
targets=($home kw)
;;
tp)
- targets=(frodo kd)
+ # kd disabled temporarily while its hot and i plan to work on it.
+ #targets=(frodo kd)
+ targets=(frodo x3.b8.nz)
# might not be connected to the vpn
if timeout -s 9 10 ssh kw :; then
targets+=(kw)
# ;;
*)
prospective_mps=(/a /q)
- if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
- prospective_mps+=(/o)
+ if [[ $source ]]; then
+ source_state="$(ssh $source cat /a/bin/bash_unpublished/source-state)"
+ eval "$source_state"
+ source_host="$(ssh $source cat /etc/hostname)"
+ if [[ $source_host == "$MAIL_HOST" ]]; then
+ prospective_mps+=(/o)
+ fi
+ else
+ if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
+ prospective_mps+=(/o)
+ fi
fi
;;
esac
for mp in ${prospective_mps[@]}; do # default mountpoints to sync
if [[ -e /nocow/btrfs-stale/$mp ]]; then
- echo "$pre warning: $mp stale, not adding to default mountpoints"
+ e "warning: $mp stale, not adding to default mountpoints"
continue
fi
if awk '{print $2}' /etc/fstab | grep -xF $mp &>/dev/null; then
echo "mountpoints: ${mountpoints[*]}"
+##### end command line parsing ########
+if [[ $source ]]; then
+ if [[ $(ssh $source systemctl is-active btrbk.service) != inactive ]]; then
+ echo "$0: error: cron btrbk is running on source. exiting out of caution"
+ exit 1
+ fi
+fi
# pull_reexec stops us from getting into an infinite loop if there is some
# kind of weird problem
break
fi
done
-if ! $pull_reexec && [[ $source ]] && ! $pulla ; then
+if ! $pull_reexec && [[ $source ]] && $pulla ; then
tmpf=$(mktemp)
scp $source:/a/bin/distro-setup/btrbk-run $tmpf
if ! diff -q $tmpf $BASH_SOURCE; then
- echo "$pre found newer version on host $source. reexecing"
+ e "found newer version on host $source. reexecing"
install -T $tmpf /usr/local/bin/btrbk-run
m /usr/local/bin/btrbk-run --pull-reexec "${orig_args[@]}"
exit
fi
-##### end command line parsing ########
local_zone=$(date +%z)
if [[ $source ]]; then
- if ! zone=$(ssh root$source date +%z); then
+ if ! zone=$(ssh root@$source date +%z); then
die failed to ssh to root@$source
fi
if [[ $zone != $local_zone ]]; then
sshable=()
sshfail=()
+ min_idle_ms=$((1000 * 60 * 15))
for h in ${targets[@]}; do
if zone=$(ssh root@$h "mkdir -p /mnt/root/btrbk && date +%z"); then
+ # This is a separate ssh because xprintidle can fail and thats ok.
+ if $cron && idle_ms=$(ssh $h DISPLAY=:0 xprintidle); then
+ if (( idle_ms < min_idle_ms )); 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
+ # it from cronjob.
+ e "warning: $h: active X session in the last 15 minutes, skipping for now"
+ continue
+ fi
+ fi
sshable+=($h)
+ if [[ $zone != $local_zone ]]; then
+ die "error: dont confuse yourself with multiple time zones. $h has different timezone than localhost"
+ fi
else
sshfail+=($h)
fi
- if [[ $zone != $local_zone ]]; then
- die "error: dont confuse yourself with multiple time zones. $h has different timezone than localhost"
- fi
done
- if [[ ! $sshable ]] || { ! $cron && [[ $sshfail ]]; }; then
+ if [[ ! ${sshable[@]} ]] || { ! $cron && [[ ${sshfail[@]} ]]; }; then
die "failed to ssh to hosts: ${sshfail[*]}"
else
- if [[ $sshfail ]]; then
+ if [[ ${sshfail[@]} ]]; then
ret=1
- echo "$pre error: failed to ssh to ${sshfail[*]} but continuing with other hosts"
+ e "error: failed to ssh to ${sshfail[*]} but continuing with other hosts"
fi
targets=(${sshable[@]})
fi
iankelling.org / git / distro-setup / blobdiff