rzerres/dsnap-sync
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dsnap-sync: function updates

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* verify_structure() stat function evaluation cleanup
* get_disk_info() cmd alingnment

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>
This commit is contained in:
Ralf Zerres
2018-07-23 23:59:21 +02:00
parent 7e6ec2a997
commit 75c4f8c5bb
1 changed files with 34 additions and 26 deletions
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60
bin/dsnap-sync
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@@ -347,12 +347,19 @@ get_disk_infos () {
# get mounted BTRFS infos
if [ "$($ssh findmnt --noheadings --nofsroot --mountpoint / --output FSTYPE)" = "btrfs" ]; then
# root filesystem is never seen as valid target location
exclude_uuid=$($ssh findmnt --noheadings --nofsroot --types btrfs --mountpoint / --output UUID)
disk_uuids=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,TARGET --list | grep -v $exclude_uuid | awk '{print $1}')
disk_targets=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,TARGET --list | grep -v $exclude_uuid | awk '{print $2}')
fs_options=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,OPTIONS --list | grep -v $exclude_uuid | awk '{print $2}')
# root filesystem is excluded as a valid target location
exclude_uuid=$($ssh findmnt --noheadings --nofsroot --mountpoint / --output UUID)
disk_uuids=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,TARGET --list \
| grep -v $exclude_uuid \
| awk '{print $1}')
disk_targets=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,TARGET --list \
| grep -v $exclude_uuid \
| awk '{print $2}')
fs_options=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,OPTIONS --list \
| grep -v $exclude_uuid \
| awk '{print $2}')
else
# target location is not mounted as root
disk_uuids=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID --list)
disk_targets=$($ssh findmnt --noheadings --nofsroot --types btrfs --output TARGET --list)
fs_options=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,OPTIONS --list | awk '{print $2}')
@@ -1926,22 +1933,18 @@ verify_snapper_structure () {
"$backup_root" "$remote_host"
# create the non existing remote BTRFS subvolume for given snapshot
cmd="$ssh stat --format %i $backup_root/$snapper_snapshot 2>/dev/null"
if [ -z $(eval $cmd) ]; then
cmd="$ssh btrfs subvolume create $backup_root/$snapper_snapshot 1>/dev/null"
$(eval $cmd) || \
die "Creation of BTRFS subvolume $remote_host: $backup_root failed."
cmd="$ssh chmod 0700 $backup_root 1>/dev/null"
$(eval $cmd) || \
die "Changing the directory mode for '$backup_root' on '$remote_host'."
fi
cmd="$ssh btrfs subvolume create $backup_root/$snapper_snapshot 1>/dev/null"
$(eval $cmd) || \
die "Creation of BTRFS subvolume $remote_host: $backup_root failed."
cmd="$ssh chmod 0700 $backup_root 1>/dev/null"
$(eval $cmd) || \
die "Changing the directory mode for '$backup_root' on '$remote_host'."
else
printf "dryrun: Would create new snapper configuration from template %s ...\n" "$snapper_subvolume_template"
printf "dryrun: Would create new snapper subvolume '%s' ...\n" "$backup_root/$snapper_snapshot"
fi
else
cmd="$ssh stat --format %i $backup_root 2>/dev/null"
if [ $(eval $cmd) -ne 256 ]; then
if [ $ret -ne 256 ]; then
die "%s needs to be a BTRFS subvolume. But given %s is just a directory.\n" \
"$snapper_config" "$backup_root"
fi
@@ -2049,17 +2052,22 @@ verify_snapper_structure () {
die "Can't create snapshot dir on target."
fi
else
if [ -z "$remote" ]; then
printf "${RED}Cancel snapshot creation${NO_COLOR}: Former snapshot with id ${GREEN}'%s'${NO_COLOR} already exist in ${BLUE}'%s'${NO_COLOR}\n" \
"$snapper_id" "$backup_root/$snapper_snapshots"
else
printf "${RED}Cancel snapshot creation${NO_COLOR}: Former snapshot with id ${GREEN}'%s'${NO_COLOR} already exists on ${BLUE}'%s'${NO_COLOR} in ${BLUE}'%s'${NO_COLOR}\n" \
"$snapper_id" "$remote" "$backup_root/$snapper_snapshots"
fi
cmd="$ssh stat --format %i $backup_root/$snapper_snapshots/$snapper_id/snapshot 2>/dev/null"
ret=$(eval $cmd)
if [ $? -eq 0 ] && [ $ret -eq 256 ]; then
# a former btrfs snapshot already exists
if [ -z "$remote" ]; then
printf "${RED}Cancel snapshot creation${NO_COLOR}: Former snapshot with id ${GREEN}'%s'${NO_COLOR} already exist in ${BLUE}'%s'${NO_COLOR}\n" \
"$snapper_id" "$backup_root/$snapper_snapshots"
else
printf "${RED}Cancel snapshot creation${NO_COLOR}: Former snapshot with id ${GREEN}'%s'${NO_COLOR} already exists on ${BLUE}'%s'${NO_COLOR} in ${BLUE}'%s'${NO_COLOR}\n" \
"$snapper_id" "$remote" "$backup_root/$snapper_snapshots"
fi
# cleanup generated snapper entry
check_snapper_failed_ids $batch
die "Can't create new snapshot with given snapshot-id!"
# cleanup generated snapper entry
check_snapper_failed_ids $batch
die "Can't create new snapshot with given snapshot-id!"
fi
fi
else
printf "dryrun: Would check/create path %s to store target snapshot ...\n" \