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24
Makefile
24
Makefile
@ -1,15 +1,19 @@
|
||||
PREFIX := /usr/local
|
||||
|
||||
all:
|
||||
|
||||
install:
|
||||
install -d $(DESTDIR)$(PREFIX)/etc/cron.d
|
||||
install -d $(DESTDIR)$(PREFIX)/etc/cron.daily
|
||||
install -d $(DESTDIR)$(PREFIX)/etc/cron.hourly
|
||||
install -d $(DESTDIR)$(PREFIX)/etc/cron.weekly
|
||||
install -d $(DESTDIR)$(PREFIX)/etc/cron.monthly
|
||||
install etc/zfs-auto-snapshot.cron.frequent $(DESTDIR)$(PREFIX)/etc/cron.d/zfs-auto-snapshot
|
||||
install etc/zfs-auto-snapshot.cron.hourly $(DESTDIR)$(PREFIX)/etc/cron.daily/zfs-auto-snapshot
|
||||
install etc/zfs-auto-snapshot.cron.daily $(DESTDIR)$(PREFIX)/etc/cron.hourly/zfs-auto-snapshot
|
||||
install etc/zfs-auto-snapshot.cron.weekly $(DESTDIR)$(PREFIX)/etc/cron.weekly/zfs-auto-snapshot
|
||||
install etc/zfs-auto-snapshot.cron.monthly $(DESTDIR)$(PREFIX)/etc/cron.monthly/zfs-auto-snapshot
|
||||
install -d $(DESTDIR)/etc/cron.d
|
||||
install -d $(DESTDIR)/etc/cron.daily
|
||||
install -d $(DESTDIR)/etc/cron.hourly
|
||||
install -d $(DESTDIR)/etc/cron.weekly
|
||||
install -d $(DESTDIR)/etc/cron.monthly
|
||||
install -m 0644 etc/zfs-auto-snapshot.cron.frequent $(DESTDIR)/etc/cron.d/zfs-auto-snapshot
|
||||
install etc/zfs-auto-snapshot.cron.hourly $(DESTDIR)/etc/cron.hourly/zfs-auto-snapshot
|
||||
install etc/zfs-auto-snapshot.cron.daily $(DESTDIR)/etc/cron.daily/zfs-auto-snapshot
|
||||
install etc/zfs-auto-snapshot.cron.weekly $(DESTDIR)/etc/cron.weekly/zfs-auto-snapshot
|
||||
install etc/zfs-auto-snapshot.cron.monthly $(DESTDIR)/etc/cron.monthly/zfs-auto-snapshot
|
||||
install -d $(DESTDIR)$(PREFIX)/share/man/man8
|
||||
install src/zfs-auto-snapshot.8 $(DESTDIR)$(PREFIX)/share/man/man8/zfs-auto-snapshot.8
|
||||
install -d $(DESTDIR)$(PREFIX)/sbin
|
||||
install src/zfs-auto-snapshot.sh $(DESTDIR)$(PREFIX)/sbin/zfs-auto-snapshot
|
||||
|
||||
19
README
19
README
@ -1,4 +1,21 @@
|
||||
An alternative implementation of the zfs-auto-snapshot service for Linux.
|
||||
zfs-auto-snapshot:
|
||||
|
||||
An alternative implementation of the zfs-auto-snapshot service for Linux
|
||||
that is compatible with zfs-linux and zfs-fuse.
|
||||
|
||||
Automatically create, rotate, and destroy periodic ZFS snapshots. This is
|
||||
the utility that creates the @zfs-auto-snap_frequent, @zfs-auto-snap_hourly,
|
||||
@zfs-auto-snap_daily, @zfs-auto-snap_weekly, and @zfs-auto-snap_monthly
|
||||
snapshots if it is installed.
|
||||
|
||||
This program is a posixly correct bourne shell script. It depends only on
|
||||
the zfs utilities and cron, and can run in the dash shell.
|
||||
|
||||
|
||||
Installation:
|
||||
-------------
|
||||
|
||||
wget https://github.com/zfsonlinux/zfs-auto-snapshot/archive/master.zip
|
||||
unzip master.zip
|
||||
cd zfs-auto-snapshot-master
|
||||
make install
|
||||
|
||||
@ -1,2 +1,5 @@
|
||||
#!/bin/sh
|
||||
exec zfs-auto-snapshot --quiet --syslog --label=daily --keep=31 //
|
||||
|
||||
# Only call zfs-auto-snapshot if it's available
|
||||
which zfs-auto-snapshot > /dev/null && \
|
||||
exec zfs-auto-snapshot --quiet --syslog --label=daily --keep=31 //
|
||||
|
||||
@ -1,7 +1,3 @@
|
||||
PATH="/usr/bin:/bin:/usr/sbin:/sbin"
|
||||
PATH="/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin"
|
||||
|
||||
*/15 * * * * root zfs-auto-snapshot -q -g --label=frequent --keep=4 //
|
||||
@hourly root zfs-auto-snapshot -q -g --label=hourly --keep=24 //
|
||||
@daily root zfs-auto-snapshot -q -g --label=daily --keep=31 //
|
||||
@weekly root zfs-auto-snapshot -q -g --label=weekly --keep=4 //
|
||||
@monthly root zfs-auto-snapshot -q -g --label=monthly --keep=12 //
|
||||
*/15 * * * * root which zfs-auto-snapshot > /dev/null && zfs-auto-snapshot --quiet --syslog --label=frequent --keep=4 //
|
||||
|
||||
@ -1,2 +1,5 @@
|
||||
#!/bin/sh
|
||||
exec zfs-auto-snapshot --quiet --syslog --label=hourly --keep=24 //
|
||||
|
||||
# Only call zfs-auto-snapshot if it's available
|
||||
which zfs-auto-snapshot > /dev/null && \
|
||||
exec zfs-auto-snapshot --quiet --syslog --label=hourly --keep=24 //
|
||||
|
||||
@ -1,2 +1,5 @@
|
||||
#!/bin/sh
|
||||
exec zfs-auto-snapshot --quiet --syslog --label=monthly --keep=12 //
|
||||
|
||||
# Only call zfs-auto-snapshot if it's available
|
||||
which zfs-auto-snapshot > /dev/null && \
|
||||
exec zfs-auto-snapshot --quiet --syslog --label=monthly --keep=12 //
|
||||
|
||||
@ -1,2 +1,5 @@
|
||||
#!/bin/sh
|
||||
exec zfs-auto-snapshot --quiet --syslog --label=weekly --keep=4 //
|
||||
|
||||
# Only call zfs-auto-snapshot if it's available
|
||||
which zfs-auto-snapshot > /dev/null && \
|
||||
exec zfs-auto-snapshot --quiet --syslog --label=weekly --keep=8 //
|
||||
|
||||
91
src/zfs-auto-snapshot.8
Normal file
91
src/zfs-auto-snapshot.8
Normal file
@ -0,0 +1,91 @@
|
||||
.TH ZFS-AUTO-SNAPSHOT "8" "June 16, 2013" "zfs-auto-snapshot.sh" "System Administration Commands"
|
||||
.SH NAME
|
||||
zfs-auto-snapshot \- take regular ZFS snapshots
|
||||
.SH SYNOPSIS
|
||||
.B zfs-auto-snapshot
|
||||
[\fIoptions\fR] [\fI-l label\fR] \fI<'//' | name \fR[\fIname\fR...]\fI>\fR
|
||||
.SH DESCRIPTION
|
||||
.B zfs-auto-snapshot
|
||||
automatically creates, rotates, and destroys snapshots for all your
|
||||
ZFS datasets, and is compatible with both zfsonlinux and zfs-fuse.
|
||||
.SH OPTIONS
|
||||
.TP
|
||||
\fB\-\-default\-exclude\fR
|
||||
By default \fBzfs-auto-snapshot\fR will snapshot all datasets except
|
||||
for those in which the user-property \fBcom.sun:auto-snapshot\fR is
|
||||
set to \fBfalse\fR. This option reverses the behavior and requires
|
||||
\fBcom.sun:auto-snapshot\fR to be set to \fBtrue\fR.
|
||||
.TP
|
||||
\fB\-d\fR, \fB\-\-debug\fR
|
||||
Print debugging messages.
|
||||
.TP
|
||||
\fB\-e\fR, \fB\-\-event\fR=\fIEVENT\fR
|
||||
Set the com.sun:auto\-snapshot\-desc property to EVENT.
|
||||
.TP
|
||||
\fB\-\-fast\fR
|
||||
Use a faster zfs list invocation.
|
||||
.TP
|
||||
\fB\-n\fR, \fB\-\-dry\-run\fR
|
||||
Print actions without actually doing anything.
|
||||
.TP
|
||||
\fB\-s\fR, \fB\-\-skip\-scrub\fR
|
||||
Do not snapshot filesystems in scrubbing pools.
|
||||
.TP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
Print the usage message.
|
||||
.TP
|
||||
\fB\-k\fR, \fB\-\-keep\fR=\fINUM\fR
|
||||
Keep NUM recent snapshots and destroy older snapshots.
|
||||
.TP
|
||||
\fB\-l\fR, \fB\-\-label\fR=\fILAB\fR
|
||||
LAB is usually 'hourly', 'daily', or 'monthly'.
|
||||
.TP
|
||||
\fB\-p\fR, \fB\-\-prefix\fR=\fIPRE\fR
|
||||
PRE is 'zfs\-auto\-snap' by default.
|
||||
.TP
|
||||
\fB\-q\fR, \fB\-\-quiet\fR
|
||||
Suppress warnings and notices at the console.
|
||||
.TP
|
||||
\fB\-\-send\-full\fR=\fIF\fR
|
||||
Send zfs full backup. Unimplemented.
|
||||
.TP
|
||||
\fB\-\-send\-incr\fR=\fIF\fR
|
||||
Send zfs incremental backup. Unimplemented.
|
||||
.TP
|
||||
\fB\-\-sep\fR=\fICHAR\fR
|
||||
Use CHAR to separate date stamps in snapshot names.
|
||||
.TP
|
||||
\fB\-g\fR, \fB\-\-syslog\fR
|
||||
Write messages into the system log.
|
||||
.TP
|
||||
\fB\-r\fR, \fB\-\-recursive\fR
|
||||
Snapshot named filesystem and all descendants.
|
||||
.TP
|
||||
\fB\-v\fR, \fB\-\-verbose\fR
|
||||
Print info messages.
|
||||
.TP
|
||||
\fB\-\-pre-snapshot\fR=\fICOMMAND\fR
|
||||
Command to run before each dataset is snapshotted.
|
||||
It is passed the dataset and snapshot name. If it
|
||||
returns non-zero, snapshotting this dataset is
|
||||
aborted.
|
||||
.TP
|
||||
\fB\-\-post-snapshot\fR=\fICOMMAND\fR
|
||||
Command to run after each dataset is snapshotted.
|
||||
It is passed the dataset and snapshot name.
|
||||
.TP
|
||||
\fB\-\-destroy-only\fR
|
||||
Do not create new snapshots, but do destroy older
|
||||
snapshots. Has no effect unless used with \fB\-k\fR.
|
||||
.IP
|
||||
A non-obvious use may be constructon of cron jobs or
|
||||
scripts that run pre-snapshot command(s), then run
|
||||
zfs-auto-snapshot (without \fB\-k\fR) to quickly
|
||||
snapshot all datasets, then run post-snapshot
|
||||
command(s) and clean up with zfs-auto-snapshot
|
||||
\fB\-\-destroy-only\fR.
|
||||
.TP
|
||||
name
|
||||
Filesystem and volume names, or '//' for all ZFS datasets.
|
||||
.SH SEE ALSO
|
||||
.BR zfs (8)
|
||||
@ -29,6 +29,7 @@ opt_backup_incremental=''
|
||||
opt_default_exclude=''
|
||||
opt_dry_run=''
|
||||
opt_event='-'
|
||||
opt_fast_zfs_list=''
|
||||
opt_keep=''
|
||||
opt_label=''
|
||||
opt_prefix='zfs-auto-snap'
|
||||
@ -38,6 +39,9 @@ opt_setauto=''
|
||||
opt_syslog=''
|
||||
opt_skip_scrub=''
|
||||
opt_verbose=''
|
||||
opt_pre_snapshot=''
|
||||
opt_post_snapshot=''
|
||||
opt_do_snapshots=1
|
||||
|
||||
# Global summary statistics.
|
||||
DESTRUCTION_COUNT='0'
|
||||
@ -51,9 +55,10 @@ SNAPSHOTS_OLD=''
|
||||
print_usage ()
|
||||
{
|
||||
echo "Usage: $0 [options] [-l label] <'//' | name [name...]>
|
||||
--default-exclude Exclude objects if com.sun:auto-snapshot is unset.
|
||||
--default-exclude Exclude datasets if com.sun:auto-snapshot is unset.
|
||||
-d, --debug Print debugging messages.
|
||||
-e, --event=EVENT Set the com.sun:auto-snapshot-desc property to EVENT.
|
||||
--fast Use a faster zfs list invocation.
|
||||
-n, --dry-run Print actions without actually doing anything.
|
||||
-s, --skip-scrub Do not snapshot filesystems in scrubbing pools.
|
||||
-h, --help Print this usage message.
|
||||
@ -67,7 +72,8 @@ print_usage ()
|
||||
-g, --syslog Write messages into the system log.
|
||||
-r, --recursive Snapshot named filesystem and all descendants.
|
||||
-v, --verbose Print info messages.
|
||||
name Filesystem and volume names, or '//' for all ZFS objects.
|
||||
--destroy-only Only destroy older snapshots, do not create new ones.
|
||||
name Filesystem and volume names, or '//' for all ZFS datasets.
|
||||
"
|
||||
}
|
||||
|
||||
@ -104,7 +110,7 @@ print_log () # level, message, ...
|
||||
;;
|
||||
(inf*)
|
||||
# test -n "$opt_syslog" && logger -t "$opt_prefix" -p daemon.info $*
|
||||
test -n "$opt_verbose" && echo $*
|
||||
test -z ${opt_quiet+x} && test -n "$opt_verbose" && echo $*
|
||||
;;
|
||||
(deb*)
|
||||
# test -n "$opt_syslog" && logger -t "$opt_prefix" -p daemon.debug $*
|
||||
@ -146,6 +152,7 @@ do_snapshots () # properties, flags, snapname, oldglob, [targets...]
|
||||
local GLOB="$4"
|
||||
local TARGETS="$5"
|
||||
local KEEP=''
|
||||
local RUNSNAP=1
|
||||
|
||||
# global DESTRUCTION_COUNT
|
||||
# global SNAPSHOT_COUNT
|
||||
@ -154,13 +161,21 @@ do_snapshots () # properties, flags, snapname, oldglob, [targets...]
|
||||
|
||||
for ii in $TARGETS
|
||||
do
|
||||
if do_run "zfs snapshot $PROPS $FLAGS '$ii@$NAME'"
|
||||
if [ -n "$opt_do_snapshots" ]
|
||||
then
|
||||
SNAPSHOT_COUNT=$(( $SNAPSHOT_COUNT + 1 ))
|
||||
else
|
||||
WARNING_COUNT=$(( $WARNING_COUNT + 1 ))
|
||||
continue
|
||||
fi
|
||||
if [ "$opt_pre_snapshot" != "" ]
|
||||
then
|
||||
do_run "$opt_pre_snapshot $ii $NAME" || RUNSNAP=0
|
||||
fi
|
||||
if [ $RUNSNAP -eq 1 ] && do_run "zfs snapshot $PROPS $FLAGS '$ii@$NAME'"
|
||||
then
|
||||
[ "$opt_post_snapshot" != "" ] && do_run "$opt_post_snapshot $ii $NAME"
|
||||
SNAPSHOT_COUNT=$(( $SNAPSHOT_COUNT + 1 ))
|
||||
else
|
||||
WARNING_COUNT=$(( $WARNING_COUNT + 1 ))
|
||||
continue
|
||||
fi
|
||||
fi
|
||||
|
||||
# Retain at most $opt_keep number of old snapshots of this filesystem,
|
||||
# including the one that was just recently created.
|
||||
@ -176,7 +191,7 @@ do_snapshots () # properties, flags, snapname, oldglob, [targets...]
|
||||
KEEP=$(( $KEEP - 1 ))
|
||||
if [ "$KEEP" -le '0' ]
|
||||
then
|
||||
if do_run "zfs destroy $FLAGS '$jj'"
|
||||
if do_run "zfs destroy -d $FLAGS '$jj'"
|
||||
then
|
||||
DESTRUCTION_COUNT=$(( $DESTRUCTION_COUNT + 1 ))
|
||||
else
|
||||
@ -193,9 +208,10 @@ do_snapshots () # properties, flags, snapname, oldglob, [targets...]
|
||||
# {
|
||||
|
||||
GETOPT=$(getopt \
|
||||
--longoptions=default-exclude,dry-run,skip-scrub,recursive \
|
||||
--longoptions=default-exclude,dry-run,fast,skip-scrub,recursive \
|
||||
--longoptions=event:,keep:,label:,prefix:,sep: \
|
||||
--longoptions=debug,help,quiet,syslog,verbose \
|
||||
--longoptions=pre-snapshot:,post-snapshot:,destroy-only \
|
||||
--options=dnshe:l:k:p:rs:qgv \
|
||||
-- "$@" ) \
|
||||
|| exit 128
|
||||
@ -226,6 +242,10 @@ do
|
||||
fi
|
||||
shift 2
|
||||
;;
|
||||
(--fast)
|
||||
opt_fast_zfs_list='1'
|
||||
shift 1
|
||||
;;
|
||||
(-n|--dry-run)
|
||||
opt_dry_run='1'
|
||||
shift 1
|
||||
@ -256,7 +276,7 @@ do
|
||||
while test "${#opt_prefix}" -gt '0'
|
||||
do
|
||||
case $opt_prefix in
|
||||
([![:alnum:]_-.:\ ]*)
|
||||
([![:alnum:]_.:\ -]*)
|
||||
print_log error "The $1 parameter must be alphanumeric."
|
||||
exit 130
|
||||
;;
|
||||
@ -278,7 +298,7 @@ do
|
||||
;;
|
||||
(--sep)
|
||||
case "$2" in
|
||||
([[:alnum:]_-.:\ ])
|
||||
([[:alnum:]_.:\ -])
|
||||
:
|
||||
;;
|
||||
('')
|
||||
@ -302,6 +322,18 @@ do
|
||||
opt_verbose='1'
|
||||
shift 1
|
||||
;;
|
||||
(--pre-snapshot)
|
||||
opt_pre_snapshot="$2"
|
||||
shift 2
|
||||
;;
|
||||
(--post-snapshot)
|
||||
opt_post_snapshot="$2"
|
||||
shift 2
|
||||
;;
|
||||
(--destroy-only)
|
||||
opt_do_snapshots=''
|
||||
shift 1
|
||||
;;
|
||||
(--)
|
||||
shift 1
|
||||
break
|
||||
@ -339,9 +371,18 @@ ZFS_LIST=$(env LC_ALL=C zfs list -H -t filesystem,volume -s name \
|
||||
-o name,com.sun:auto-snapshot,com.sun:auto-snapshot:"$opt_label") \
|
||||
|| { print_log error "zfs list $?: $ZFS_LIST"; exit 136; }
|
||||
|
||||
SNAPSHOTS_OLD=$(env LC_ALL=C zfs list -H -t snapshot -S creation -o name) \
|
||||
|| { print_log error "zfs list $?: $SNAPSHOTS_OLD"; exit 137; }
|
||||
|
||||
if [ -n "$opt_fast_zfs_list" ]
|
||||
then
|
||||
SNAPSHOTS_OLD=$(env LC_ALL=C zfs list -H -t snapshot -o name -s name | \
|
||||
grep $opt_prefix | \
|
||||
awk '{ print substr( $0, length($0) - 14, length($0) ) " " $0}' | \
|
||||
sort -r -k1,1 -k2,2 | \
|
||||
awk '{ print substr( $0, 17, length($0) )}') \
|
||||
|| { print_log error "zfs list $?: $SNAPSHOTS_OLD"; exit 137; }
|
||||
else
|
||||
SNAPSHOTS_OLD=$(env LC_ALL=C zfs list -H -t snapshot -S creation -o name) \
|
||||
|| { print_log error "zfs list $?: $SNAPSHOTS_OLD"; exit 137; }
|
||||
fi
|
||||
|
||||
# Verify that each argument is a filesystem or volume.
|
||||
for ii in "$@"
|
||||
@ -358,26 +399,26 @@ do
|
||||
done
|
||||
|
||||
# Get a list of pools that are being scrubbed.
|
||||
ZPOOLS_SCRUBBING=$(echo "$ZFS_STATUS" | awk -F ': ' \
|
||||
ZPOOLS_SCRUBBING=$(echo "$ZPOOL_STATUS" | awk -F ': ' \
|
||||
'$1 ~ /^ *pool$/ { pool = $2 } ; \
|
||||
$1 ~ /^ *scan$/ && $2 ~ /scrub in progress/ { print pool }' \
|
||||
| sort )
|
||||
|
||||
# Get a list of pools that cannot do a snapshot.
|
||||
ZPOOLS_NOTREADY=$(echo "$ZFS_STATUS" | awk -F ': ' \
|
||||
ZPOOLS_NOTREADY=$(echo "$ZPOOL_STATUS" | awk -F ': ' \
|
||||
'$1 ~ /^ *pool$/ { pool = $2 } ; \
|
||||
$1 ~ /^ *state$/ && $2 !~ /ONLINE|DEGRADED/ { print pool } ' \
|
||||
| sort)
|
||||
|
||||
# Get a list of objects for which snapshots are explicitly disabled.
|
||||
# Get a list of datasets for which snapshots are explicitly disabled.
|
||||
NOAUTO=$(echo "$ZFS_LIST" | awk -F '\t' \
|
||||
'tolower($2) ~ /false/ || tolower($3) ~ /false/ {print $1}')
|
||||
|
||||
# If the --default-exclude flag is set, then exclude all objects that lack
|
||||
# If the --default-exclude flag is set, then exclude all datasets that lack
|
||||
# an explicit com.sun:auto-snapshot* property. Otherwise, include them.
|
||||
if [ -n "$opt_default_exclude" ]
|
||||
then
|
||||
# Get a list of objects for which snapshots are explicitly enabled.
|
||||
# Get a list of datasets for which snapshots are explicitly enabled.
|
||||
CANDIDATES=$(echo "$ZFS_LIST" | awk -F '\t' \
|
||||
'tolower($2) ~ /true/ || tolower($3) ~ /true/ {print $1}')
|
||||
else
|
||||
@ -386,20 +427,20 @@ else
|
||||
'tolower($2) !~ /false/ && tolower($3) !~ /false/ {print $1}')
|
||||
fi
|
||||
|
||||
# Initialize the list of objects that will get a recursive snapshot.
|
||||
# Initialize the list of datasets that will get a recursive snapshot.
|
||||
TARGETS_RECURSIVE=''
|
||||
|
||||
# Initialize the list of objects that will get a non-recursive snapshot.
|
||||
# Initialize the list of datasets that will get a non-recursive snapshot.
|
||||
TARGETS_REGULAR=''
|
||||
|
||||
for ii in $CANDIDATES
|
||||
do
|
||||
# Qualify object names so variable globbing works properly.
|
||||
# Qualify dataset names so variable globbing works properly.
|
||||
# Suppose ii=tanker/foo and jj=tank sometime during the loop.
|
||||
# Just testing "$ii" != ${ii#$jj} would incorrectly match.
|
||||
iii="$ii/"
|
||||
|
||||
# Exclude objects that are not named on the command line.
|
||||
# Exclude datasets that are not named on the command line.
|
||||
IN_ARGS='0'
|
||||
for jj in "$@"
|
||||
do
|
||||
@ -413,13 +454,13 @@ do
|
||||
continue
|
||||
fi
|
||||
|
||||
# Exclude objects in pools that cannot do a snapshot.
|
||||
# Exclude datasets in pools that cannot do a snapshot.
|
||||
for jj in $ZPOOLS_NOTREADY
|
||||
do
|
||||
# Ibid regarding iii.
|
||||
jjj="$jj/"
|
||||
|
||||
# Check whether the pool name is a prefix of the object name.
|
||||
# Check whether the pool name is a prefix of the dataset name.
|
||||
if [ "$iii" != "${iii#$jjj}" ]
|
||||
then
|
||||
print_log info "Excluding $ii because pool $jj is not ready."
|
||||
@ -427,13 +468,13 @@ do
|
||||
fi
|
||||
done
|
||||
|
||||
# Exclude objects in scrubbing pools if the --skip-scrub flag is set.
|
||||
# Exclude datasets in scrubbing pools if the --skip-scrub flag is set.
|
||||
test -n "$opt_skip_scrub" && for jj in $ZPOOLS_SCRUBBING
|
||||
do
|
||||
# Ibid regarding iii.
|
||||
jjj="$jj/"
|
||||
|
||||
# Check whether the pool name is a prefix of the object name.
|
||||
# Check whether the pool name is a prefix of the dataset name.
|
||||
if [ "$iii" != "${iii#$jjj}" ]
|
||||
then
|
||||
print_log info "Excluding $ii because pool $jj is scrubbing."
|
||||
@ -446,17 +487,17 @@ do
|
||||
# Ibid regarding iii.
|
||||
jjj="$jj/"
|
||||
|
||||
# The --recusive switch only matters for non-wild arguments.
|
||||
# The --recursive switch only matters for non-wild arguments.
|
||||
if [ -z "$opt_recursive" -a "$1" != '//' ]
|
||||
then
|
||||
# Snapshot this object non-recursively.
|
||||
# Snapshot this dataset non-recursively.
|
||||
print_log debug "Including $ii for regular snapshot."
|
||||
TARGETS_REGULAR="${TARGETS_REGULAR:+$TARGETS_REGULAR }$ii" # nb: \t
|
||||
continue 2
|
||||
# Check whether the candidate name is a prefix of any excluded object name.
|
||||
# Check whether the candidate name is a prefix of any excluded dataset name.
|
||||
elif [ "$jjj" != "${jjj#$iii}" ]
|
||||
then
|
||||
# Snapshot this object non-recursively.
|
||||
# Snapshot this dataset non-recursively.
|
||||
print_log debug "Including $ii for regular snapshot."
|
||||
TARGETS_REGULAR="${TARGETS_REGULAR:+$TARGETS_REGULAR }$ii" # nb: \t
|
||||
continue 2
|
||||
@ -468,7 +509,7 @@ do
|
||||
# Ibid regarding iii.
|
||||
jjj="$jj/"
|
||||
|
||||
# Check whether any included object is a prefix of the candidate name.
|
||||
# Check whether any included dataset is a prefix of the candidate name.
|
||||
if [ "$iii" != "${iii#$jjj}" ]
|
||||
then
|
||||
print_log debug "Excluding $ii because $jj includes it recursively."
|
||||
@ -493,19 +534,36 @@ SNAPPROP="-o com.sun:auto-snapshot-desc='$opt_event'"
|
||||
|
||||
# ISO style date; fifteen characters: YYYY-MM-DD-HHMM
|
||||
# On Solaris %H%M expands to 12h34.
|
||||
DATE=$(date +%F-%H%M)
|
||||
DATE=$(date --utc +%F-%H%M)
|
||||
|
||||
# The snapshot name after the @ symbol.
|
||||
SNAPNAME="$opt_prefix${opt_label:+$opt_sep$opt_label-$DATE}"
|
||||
SNAPNAME="$opt_prefix${opt_label:+$opt_sep$opt_label}-$DATE"
|
||||
|
||||
# The expression for matching old snapshots. -YYYY-MM-DD-HHMM
|
||||
SNAPGLOB="$opt_prefix${opt_label:+?$opt_label}????????????????"
|
||||
|
||||
test -n "$TARGETS_REGULAR" \
|
||||
&& print_log info "Doing regular snapshots of $TARGETS_REGULAR"
|
||||
if [ -n "$opt_do_snapshots" ]
|
||||
then
|
||||
test -n "$TARGETS_REGULAR" \
|
||||
&& print_log info "Doing regular snapshots of $TARGETS_REGULAR"
|
||||
|
||||
test -n "$TARGETS_RECURSIVE" \
|
||||
&& print_log info "Doing recursive snapshots of $TARGETS_RECURSIVE"
|
||||
test -n "$TARGETS_RECURSIVE" \
|
||||
&& print_log info "Doing recursive snapshots of $TARGETS_RECURSIVE"
|
||||
|
||||
if test -n "$opt_keep" && [ "$opt_keep" -ge "1" ]
|
||||
then
|
||||
print_log info "Destroying all but the newest $opt_keep snapshots of each dataset."
|
||||
fi
|
||||
elif test -n "$opt_keep" && [ "$opt_keep" -ge "1" ]
|
||||
then
|
||||
test -n "$TARGETS_REGULAR" \
|
||||
&& print_log info "Destroying all but the newest $opt_keep snapshots of $TARGETS_REGULAR"
|
||||
|
||||
test -n "$TARGETS_RECURSIVE" \
|
||||
&& print_log info "Recursively destroying all but the newest $opt_keep snapshots of $TARGETS_RECURSIVE"
|
||||
else
|
||||
print_log notice "Only destroying snapshots, but count of snapshots to preserve not given. Nothing to do."
|
||||
fi
|
||||
|
||||
test -n "$opt_dry_run" \
|
||||
&& print_log info "Doing a dry run. Not running these commands..."
|
||||
|
||||
Reference in New Issue
Block a user