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Added option to disable automatically purging old backups when out of space.

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Neddy70 2018-03-17 11:41:14 +11:00
parent 4af7610dd1
commit b0654c96e0
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5
README.md
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@ -25,6 +25,7 @@ On macOS, it has a few disadvantages compared to Time Machine - in particular it
--strategy Set the expiration strategy. Default: "1:1 30:7 365:30" means after one --strategy Set the expiration strategy. Default: "1:1 30:7 365:30" means after one
day, keep one backup per day. After 30 days, keep one backup every 7 days. day, keep one backup per day. After 30 days, keep one backup every 7 days.
After 365 days keep one backup every 30 days. After 365 days keep one backup every 30 days.
--no-auto-expire Set option to disable automatically purging old backups when out of space.
## Features ## Features
@ -91,6 +92,10 @@ To display the rsync options that are used for backup, run `./rsync_tmbackup.sh
rsync_tmbackup --rsync-set-flags "--numeric-ids --links --hard-links \ rsync_tmbackup --rsync-set-flags "--numeric-ids --links --hard-links \
--one-file-system --archive --no-perms --no-groups --itemize-changes" /src /dest --one-file-system --archive --no-perms --no-groups --itemize-changes" /src /dest
## No automatic backup expiration
An option to diable the default behaviour to purge old backups when out of space. This option is set with the `--no-auto-expire` flag.
## How to restore ## How to restore

12
rsync_tmbackup.sh
View file

@ -46,6 +46,8 @@ fn_display_usage() {
echo " --strategy Set the expiration strategy. Default: \"1:1 30:7 365:30\" means after one" echo " --strategy Set the expiration strategy. Default: \"1:1 30:7 365:30\" means after one"
echo " day, keep one backup per day. After 30 days, keep one backup every 7 days." echo " day, keep one backup per day. After 30 days, keep one backup every 7 days."
echo " After 365 days keep one backup every 30 days." echo " After 365 days keep one backup every 30 days."
echo " --no-auto-expire Disable automatically deleting backups when out of space. Instead an error"
echo " is logged, and the backup is aborted."
echo "" echo ""
echo "For more detailed help, please see the README file:" echo "For more detailed help, please see the README file:"
echo "" echo ""
@ -215,6 +217,7 @@ EXCLUSION_FILE=""
LOG_DIR="$HOME/.$APPNAME" LOG_DIR="$HOME/.$APPNAME"
AUTO_DELETE_LOG="1" AUTO_DELETE_LOG="1"
EXPIRATION_STRATEGY="1:1 30:7 365:30" EXPIRATION_STRATEGY="1:1 30:7 365:30"
AUTO_EXPIRE="1"
RSYNC_FLAGS="-D --compress --numeric-ids --links --hard-links --one-file-system --itemize-changes --times --recursive --perms --owner --group --stats --human-readable" RSYNC_FLAGS="-D --compress --numeric-ids --links --hard-links --one-file-system --itemize-changes --times --recursive --perms --owner --group --stats --human-readable"
@ -246,6 +249,9 @@ while :; do
LOG_DIR="$1" LOG_DIR="$1"
AUTO_DELETE_LOG="0" AUTO_DELETE_LOG="0"
;; ;;
--no-auto-expire)
AUTO_EXPIRE="0"
;;
--) --)
shift shift
SRC_FOLDER="$1" SRC_FOLDER="$1"
@ -459,6 +465,12 @@ while : ; do
NO_SPACE_LEFT="$(grep "No space left on device (28)\|Result too large (34)" "$LOG_FILE")" NO_SPACE_LEFT="$(grep "No space left on device (28)\|Result too large (34)" "$LOG_FILE")"
if [ -n "$NO_SPACE_LEFT" ]; then if [ -n "$NO_SPACE_LEFT" ]; then
if [[ $AUTO_EXPIRE == "0" ]]; then
fn_log_error "No space left on device, and automatic purging of old backups is disabled."
exit 1
fi
fn_log_warn "No space left on device - removing oldest backup and resuming." fn_log_warn "No space left on device - removing oldest backup and resuming."
if [[ "$(fn_find_backups | wc -l)" -lt "2" ]]; then if [[ "$(fn_find_backups | wc -l)" -lt "2" ]]; then