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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rsync_tmbackup.sh
+24 -30
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@@ -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