schiwagoa/rsync-time-backup
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Removed old backup deletion prompt, and formatting tweaks.

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- Removed old backup deletion prompt as it's not really needed.
- Made all variables uppercase for consistency.
- Used double square brackets in `if` statements.
This commit is contained in:
Laurent Cozic
2013-11-16 22:50:10 +08:00
parent 81d6b4fb99
commit d31b689f6b
2 changed files with 28 additions and 30 deletions
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README.md
+4
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@@ -36,6 +36,8 @@ An optional exclude file can be provided as a third parameter. It should be comp
* Exclude file - support for pattern-based exclusion via the `--exclude-from` rsync parameter.
* Automatically purge old backups - within 24 hours, all backups are kept. Within one month, the most recent backup for each day is kept. For all previous backups, the most recent of each month is kept.
* "latest" symlink that points to the latest successful backup.
* The application is just one bash script that can be easily edited.
@@ -44,6 +46,8 @@ An optional exclude file can be provided as a third parameter. It should be comp
* Minor changes (see TODO comments in the source).
* Backup to remote drive?
# LICENSE
[MIT](http://opensource.org/licenses/MIT)
rsync_tmbackup.sh
+24 -30
View File
@@ -63,8 +63,8 @@ SRC_FOLDER=${1%/}
DEST_FOLDER=${2%/}
EXCLUSION_FILE=$3
for arg in "$SRC_FOLDER" "$DEST_FOLDER" "$EXCLUSION_FILE"; do
if [[ "$arg" == *"'"* ]]; then
for ARG in "$SRC_FOLDER" "$DEST_FOLDER" "$EXCLUSION_FILE"; do
if [[ "$ARG" == *"'"* ]]; then
fn_log_error 'Arguments may not have any single quote characters.'
exit 1
fi
@@ -103,7 +103,6 @@ EPOCH=$(date "+%s")
KEEP_ALL_DATE=$(($EPOCH - 86400)) # 1 day ago
KEEP_DAILIES_DATE=$(($EPOCH - 2678400)) # 31 days ago
export IFS=$'\n' # Better for handling spaces in filenames.
PROFILE_FOLDER="$HOME/.rsync_tmbackup"
LOG_FILE="$PROFILE_FOLDER/$NOW.log"
@@ -144,7 +143,7 @@ fi
while [ "1" ]; do
# -----------------------------------------------------------------------------
# Check if we are doing an incremental backup (if previous backup exists) or not
# Check if we are doing an incremental backup (if previous backup exists).
# -----------------------------------------------------------------------------
LINK_DEST_OPTION=""
@@ -171,28 +170,29 @@ while [ "1" ]; do
# Purge certain old backups before beginning new backup.
# -----------------------------------------------------------------------------
# Default value for $prev ensures that the most recent backup is never deleted.
prev="0000-00-00-000000"
for fname in $(fn_find_backups | sort -r); do
date=$(basename "$fname")
stamp=$(fn_parse_date $date)
# Default value for $PREV ensures that the most recent backup is never deleted.
PREV="0000-00-00-000000"
for FILENAME in $(fn_find_backups | sort -r); do
BACKUP_DATE=$(basename "$FILENAME")
TIMESTAMP=$(fn_parse_date $BACKUP_DATE)
# Skip if failed to parse date...
[ -n "$stamp" ] || continue
if [ $stamp -ge $KEEP_ALL_DATE ]; then
true
elif [ $stamp -ge $KEEP_DAILIES_DATE ]; then
# Delete all but the most recent of each day.
[ "${date:0:10}" == "${prev:0:10}" ] && fn_expire_backup "$fname"
else
# Delete all but the most recent of each month.
[ "${date:0:7}" == "${prev:0:7}" ] && fn_expire_backup "$fname"
if [ -z "$TIMESTAMP" ]; then
fn_log_warn "Could not parse date: $FILENAME"
continue
fi
prev=$date
if [ $TIMESTAMP -ge $KEEP_ALL_DATE ]; then
true
elif [ $TIMESTAMP -ge $KEEP_DAILIES_DATE ]; then
# Delete all but the most recent of each day.
[ "${BACKUP_DATE:0:10}" == "${PREV:0:10}" ] && fn_expire_backup "$FILENAME"
else
# Delete all but the most recent of each month.
[ "${BACKUP_DATE:0:7}" == "${PREV:0:7}" ] && fn_expire_backup "$FILENAME"
fi
PREV=$BACKUP_DATE
done
# -----------------------------------------------------------------------------
@@ -248,22 +248,16 @@ while [ "1" ]; do
rm -- "$LOG_FILE"
if [ "$NO_SPACE_LEFT" == "0" ]; then
# TODO: -y flag
read -p "It looks like there is no space left on the destination. Delete old backup? (Y/n) " yn
case $yn in
[Nn]* ) exit 0;;
esac
fn_log_warn "No space left on device - removing oldest backup and resuming."
BACKUP_FOLDER_COUNT=$(fn_find_backups | wc -l)
if [ "$BACKUP_FOLDER_COUNT" -lt "2" ]; then
if [[ "$BACKUP_FOLDER_COUNT" -lt "2" ]]; then
fn_log_error "No space left on device, and no old backup to delete."
exit 1
fi
OLD_BACKUP_PATH=$(fn_find_backups | head -n 1)
if [ "$OLD_BACKUP_PATH" == "" ]; then
if [[ "$OLD_BACKUP_PATH" == "" ]]; then
fn_log_error "No space left on device, and cannot get path to oldest backup to delete."
exit 1
fi