diff options
Diffstat (limited to 'zb-cleanup')
| -rwxr-xr-x | zb-cleanup | 13 |
1 files changed, 10 insertions, 3 deletions
@@ -6,16 +6,21 @@ if [[ -z "$1" || -z "$2" ]] ; then fi timestamp () { - t="`echo \"$1\" |sed -e 's/^.*@zb-//' |tr 'p_' '+ '`" + t="`echo \"$1\" |sed -ne 's/^.*@zb-//p' |tr 'p_' '+ '`" + [[ -z "$t" ]] && return 1 date --date="$t" +%s + return $? } density="$2" timenow=`date +%s` lasttime=0 +# list snapshots zfs list -t snapshot -r -d 1 -H "$1" |awk '{print $1;}' | while read l ; do - echo `timestamp "$l"` "$l" + #link unix timestamps + unixtime=`timestamp "$l"` || continue + echo "$unixtime" "$l" done |sort -n | while read l ; do curtime=${l%% *} snapname=${l#* } @@ -24,7 +29,9 @@ done |sort -n | while read l ; do break fi - if [ $(( $density*($curtime-$lasttime)/($timenow-$lasttime) )) -lt 1] ; then + #if it's too dense, delete the closer snapshot + if [ $(( $density*($curtime-$lasttime)/($timenow-$lasttime) )) -lt 1] + then zfs destroy "$snapname" else lasttime="$curtime" |