rzerres/dsnap-sync
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snap-sync: support selection of SUBVOLID

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- either use --subvolid 'id' or --SUBVOLID 'id'
- or --subvolid='id' or --SUBVOLID='id'

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>
This commit is contained in:
Ralf Zerres
2017-11-16 19:22:20 +01:00
parent 3033822423
commit f99b720a21
1 changed files with 29 additions and 4 deletions
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27
bin/snap-sync
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@@ -42,6 +42,7 @@ exec 3>$PIPE
disk_count=-1 disk_count=-1
disk_uuid_match_count=0 disk_uuid_match_count=0
disk_target_match_count=0 disk_target_match_count=0
disk_subvolid_match_count=0
disk_uuid_match='' disk_uuid_match=''
selected_uuid='none' selected_uuid='none'
selected_target='none' selected_target='none'
@@ -137,6 +138,12 @@ get_disk_infos () {
i=0 i=0
for fs_option in $fs_options; do for fs_option in $fs_options; do
eval "fs_options_$i='$fs_option'" eval "fs_options_$i='$fs_option'"
subvolid=$(eval echo \$fs_options | sed -e 's/.*subvolid=\([0-9]*\).*/\1/')
if [ "$subvolid" = "$subvolid_cmdline" ]; then
disk_subvolid_match="$i"
disk_subvolid_match_count=$(($disk_subvolid_match_count+1))
fi
eval "disk_target_$i='$disk_target'"
i=$((i+1)) i=$((i+1))
done done
} }
@@ -194,6 +201,10 @@ parse_params () {
nonotify=1 nonotify=1
shift shift
;; ;;
-s|--subvolid|--SUBVOLID)
subvolid_cmdline="$2"
shift 2
;;
-u|--UUID) -u|--UUID)
uuid_cmdline="$2" uuid_cmdline="$2"
shift 2 shift 2
@@ -211,6 +222,10 @@ parse_params () {
ssh="ssh $remote" ssh="ssh $remote"
shift 2 shift 2
;; ;;
--subvolid=*|--SUBVOLID=*)
subvolid_cmdline=${1#*=}
shift
;;
--TARGET=*) --TARGET=*)
target_cmdline=${1#*=} target_cmdline=${1#*=}
shift shift
@@ -558,7 +573,7 @@ run_backup () {
# which is stored in snappers info.xml file of the source snapshot. # which is stored in snappers info.xml file of the source snapshot.
# This is how we find the parent. # This is how we find the parent.
userdata="backupdir=$backup_dir, uuid=$selected_uuid, subvolid=$selected_subvol" userdata="backupdir=$backup_dir, subvolid=$selected_subvol, uuid=$selected_uuid"
# Tag new snapshot as the latest # Tag new snapshot as the latest
printf "Tagging new snapshot as latest backup for '%s' ...\n" "$selected_config" | tee $PIPE printf "Tagging new snapshot as latest backup for '%s' ...\n" "$selected_config" | tee $PIPE
@@ -590,6 +605,16 @@ select_target_disk () {
printf "Selecting a mounted BTRFS device for backups on %s.\n" "$remote" printf "Selecting a mounted BTRFS device for backups on %s.\n" "$remote"
fi fi
while [ "$disk_id" -eq -1 ] || [ "$disk_id" -le $disk_count ]; do while [ "$disk_id" -eq -1 ] || [ "$disk_id" -le $disk_count ]; do
if [ "$disk_subvolid_match_count" -eq 1 ]; then
# matching SUBVOLID selection from commandline
# Pseudo-Array: disk_selected_$i (reference to $disk_uuid element)
eval "disk_selected_$i='$disk_subvolid_match'"
disk=$(eval echo \$disk_uuid_$disk_subvolid_match)
subvolid=$(eval echo \$disk_subvolid_$disk_subvolid_match)
fs_options=$(eval echo \$fs_options_$disk_target_match | sed -e 's/.*,\(subvolid=[0-9]*\).*,\(subvol=[0-9]*\)/\1,\2/')
disk_selected=$disk_subvolid_match
break
fi
if [ "$disk_target_match_count" -eq 1 ]; then if [ "$disk_target_match_count" -eq 1 ]; then
# matching TARGET selection from commandline # matching TARGET selection from commandline
# Pseudo-Array: disk_selected_$i (reference to $disk_uuid element) # Pseudo-Array: disk_selected_$i (reference to $disk_uuid element)