X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=btrbk-run;h=3ec2221d1238b22ab596f71b47e90f54a68365c1;hb=d454ba0f3f94d45af71e5a1e72a1bbcb63211645;hp=a5fd62a45c54bbbd592d570654c2ceca13fa3c9c;hpb=3c86472e219aaf3c97b1f878b4a818644b282aba;p=distro-setup diff --git a/btrbk-run b/btrbk-run index a5fd62a..3ec2221 100644 --- a/btrbk-run +++ b/btrbk-run @@ -16,8 +16,50 @@ # 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 $?" >&2' ERR +err-bash-trace() { + local -i argc_index=0 frame i start=${1:-0} max_indent=8 indent + local source + local extdebug=false + if [[ $(shopt -p extdebug) == *-s* ]]; then + extdebug=true + fi + for ((frame=0; frame < ${#FUNCNAME[@]}-1; frame++)); do + argc=${BASH_ARGC[frame]} + argc_index+=$argc + ((frame < start)) && continue + if (( ${#BASH_SOURCE[@]} > 1 )); then + source="${BASH_SOURCE[frame+1]}:${BASH_LINENO[frame]}:" + fi + indent=$((frame-start + 1)) + indent=$((indent < max_indent ? indent : max_indent)) + printf "%${indent}s↳%sin \`%s" '' "$source" "${FUNCNAME[frame]}" + if $extdebug; then + for ((i=argc_index-1; i >= argc_index-argc; i--)); do + printf " %s" "${BASH_ARGV[i]}" + done + fi + echo \' + done + return 0 +} +err-catch() { + set -E; shopt -s extdebug + _err-trap() { + err=$? + exec >&2 + set +x + echo "${BASH_SOURCE[1]}:${BASH_LINENO[0]}: \`$BASH_COMMAND' returned $err" + err-bash-trace 2 + set -e # err trap does not work within an error trap + "${_errcatch_cleanup[@]:-:}" # note :-: is to be compatible with set -u + echo "$0: exiting with code $err" + exit $err + } + trap _err-trap ERR + set -o pipefail +} +err-catch + [[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@" @@ -47,8 +89,8 @@ m() { if $verbose; then printf "$pre %s\n" "$*"; fi; "$@"; } die() { printf "$pre %s\n" "$*" >&2; exit 1; } # latest $MAIL_HOST -if [[ -e /b/bash_unpublished/source-semi-priv ]]; then - source /b/bash_unpublished/source-semi-priv +if [[ -e /b/bash_unpublished/source-state ]]; then + source /b/bash_unpublished/source-state fi # note q is owned by root:1000 @@ -108,9 +150,18 @@ while true; do esac done -# usefull commands are resume and archive +# only tested commands are resume and archive cmd_arg=${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 @@ -126,7 +177,7 @@ fi # 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 case $HOSTNAME in @@ -134,7 +185,7 @@ if [[ ! -v targets && ! $source ]]; then if ping -q -c1 -w1 iank.vpn.office.fsf.org &>/dev/null; then home=iank.vpn.office.fsf.org else - home=$HOME_DOMAIN + home=b8.nz fi ;;& kw) @@ -205,7 +256,14 @@ fi 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 @@ -228,7 +286,6 @@ if ! $pull_reexec && [[ $source ]] && $pulla ; then fi -##### end command line parsing ######## @@ -255,10 +312,10 @@ else sshable=() sshfail=() - min_idle=$((60 * 15)) + min_idle_ms=$((1000 * 60 * 15)) for h in ${targets[@]}; do if zone=$(ssh root@$h "mkdir -p /mnt/root/btrbk && date +%z"); then - if $cron && xidle=$(ssh iank@$h DISPLAY=:0 xprintidle) && [[ $xidle && $xidle -lt $min_idle ]]; then + if $cron && DISPLAY=:0 xprintidle; then # This is a separate ssh because xprintidle can fail and thats ok. # 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