extern/zfs-auto-snapshot
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Implement the --event option for :auto-snap-desc.

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Set the com.sun:auto-snap-desc property on each snapshot to an
arbitrary value.  On Solaris, this property is set to the dash
character by default -- which is convention for NULL -- but it
can contain an FMRI status comment or other user data.
This commit is contained in:
Darik Horn 2011-11-23 10:36:43 -06:00
parent 2e26499f6a
commit 5ce7a23384
1 changed files with 19 additions and 9 deletions
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28
src/zfs-auto-snapshot.sh
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@ -28,6 +28,7 @@ opt_backup_full=''
opt_backup_incremental='' opt_backup_incremental=''
opt_default_exclude='' opt_default_exclude=''
opt_dry_run='' opt_dry_run=''
opt_event='-'
opt_keep='' opt_keep=''
opt_label='' opt_label=''
opt_prefix='zfs-auto-snap' opt_prefix='zfs-auto-snap'
@ -52,6 +53,7 @@ print_usage ()
echo "Usage: $0 [options] [-l label] <'//' | name [name...]> echo "Usage: $0 [options] [-l label] <'//' | name [name...]>
--default-exclude Exclude objects if com.sun:auto-snapshot is unset. --default-exclude Exclude objects if com.sun:auto-snapshot is unset.
-d, --debug Print debugging messages. -d, --debug Print debugging messages.
-e, --event=EVENT Set the com.sun:auto-snapshot-desc property to EVENT.
-n, --dry-run Print actions without actually doing anything. -n, --dry-run Print actions without actually doing anything.
-s, --skip-scrub Do not snapshot filesystems in scrubbing pools. -s, --skip-scrub Do not snapshot filesystems in scrubbing pools.
-h, --help Print this usage message. -h, --help Print this usage message.
@ -152,7 +154,7 @@ do_snapshots () # properties, flags, snapname, oldglob, [targets...]
for ii in $TARGETS for ii in $TARGETS
do do
if do_run "zfs snapshot $PROPERTIES $FLAGS '$ii@$NAME'" if do_run "zfs snapshot $PROPS $FLAGS '$ii@$NAME'"
then then
SNAPSHOT_COUNT=$(( $SNAPSHOT_COUNT + 1 )) SNAPSHOT_COUNT=$(( $SNAPSHOT_COUNT + 1 ))
else else
@ -192,9 +194,9 @@ do_snapshots () # properties, flags, snapname, oldglob, [targets...]
GETOPT=$(getopt \ GETOPT=$(getopt \
--longoptions=default-exclude,dry-run,skip-scrub,recursive \ --longoptions=default-exclude,dry-run,skip-scrub,recursive \
--longoptions=keep:,label:,prefix:,sep: \ --longoptions=event:,keep:,label:,prefix:,sep: \
--longoptions=debug,help,quiet,syslog,verbose \ --longoptions=debug,help,quiet,syslog,verbose \
--options=dnshl:k:p:rs:qgv \ --options=dnshe:l:k:p:rs:qgv \
-- "$@" ) \ -- "$@" ) \
|| exit 128 || exit 128
@ -213,6 +215,17 @@ do
opt_default_exclude='1' opt_default_exclude='1'
shift 1 shift 1
;; ;;
(-e|--event)
if [ "${#2}" -gt '1024' ]
then
print_log error "The $1 parameter must be less than 1025 characters."
exit 139
elif [ "${#2}" -gt '0' ]
then
opt_event="$2"
fi
shift 2
;;
(-n|--dry-run) (-n|--dry-run)
opt_dry_run='1' opt_dry_run='1'
shift 1 shift 1
@ -474,12 +487,9 @@ do
TARGETS_RECURSIVE="${TARGETS_RECURSIVE:+$TARGETS_RECURSIVE }$ii" # nb: \t TARGETS_RECURSIVE="${TARGETS_RECURSIVE:+$TARGETS_RECURSIVE }$ii" # nb: \t
done done
# Linux lacks SMF and the notion of an FMRI event, but always set this property
# Linux lacks SMF and the notion of an FMRI event. # because the SUNW program does. The dash character is the default.
FMRI_EVENT='-' SNAPPROP="-o com.sun:auto-snapshot-desc='$opt_event'"
# Set this property because the SUNW program does.
SNAPPROP="-o com.sun:auto-snapshot-desc='$FMRI_EVENT'"
# ISO style date; fifteen characters: YYYY-MM-DD-HHMM # ISO style date; fifteen characters: YYYY-MM-DD-HHMM
# On Solaris %H%M expands to 12h34. # On Solaris %H%M expands to 12h34.