schiwagoa/rsync-time-backup
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Rebase on @laurent22/master.

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This commit is contained in:
Robert Bruce Park
2013-11-26 13:11:00 -08:00
parent 4720f404af 2e413d82d7
commit e7fc37076c
3 changed files with 32 additions and 54 deletions
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rsync_tmbackup.sh
+24 -32
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@@ -57,8 +57,8 @@ 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 [[ "$ARG" == *"'"* ]]; then
fn_log_error 'Arguments may not have any single quote characters.'
exit 1
fi
@@ -92,7 +92,6 @@ EPOCH=$(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/.$APPNAME"
DEST="$DEST_FOLDER/$NOW"
@@ -130,7 +129,7 @@ fi
while : ; 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=""
@@ -157,28 +156,29 @@ while : ; 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 $(fn_find_backups); do
date=$(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
: # Don't expire any backups in this range
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
# -----------------------------------------------------------------------------
@@ -196,8 +196,6 @@ while : ; do
CMD="$CMD --numeric-ids"
CMD="$CMD --links"
CMD="$CMD --hard-links"
CMD="$CMD --delete"
CMD="$CMD --delete-excluded"
CMD="$CMD --one-file-system"
CMD="$CMD --archive"
CMD="$CMD --itemize-changes"
@@ -234,16 +232,10 @@ while : ; 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
@@ -272,7 +264,7 @@ while : ; do
rm -rf -- "$DEST_FOLDER/latest"
ln -vs -- "$NOW" "$DEST_FOLDER/latest"
rm -- "$INPROGRESS_FILE"
rm -f -- "$INPROGRESS_FILE"
# TODO: grep for "^rsync error:.*$" in log
fn_log_info "Backup completed without errors."
exit 0