lightweight/docker-compose-dbbackup
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initial attempt at delete_old function

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This commit is contained in:
Dave Lane 2018-02-08 17:08:17 +13:00
parent ba60880621
commit f367c43649
1 changed files with 30 additions and 32 deletions
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26
dbbackup-docker-compose
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@ -104,13 +104,14 @@ verbose() {
# delete old backups # delete old backups
delete_old() { delete_old() {
# #
if test -n $BU_FROOT && test -n $BU_TO_KEEP ; then verbose "deleting old files based on $1"
# pattern to search for to build the list... # pattern to search for to build the list...
PATTERN="$BU_DIR/$BU_FROOT-*.*" PATTERN="$BU_DIR/$1-*.*"
# build the list, with the suffix... # build the list, with the suffix...
PRUNEABLES=`$PRUNEABLES_CMD $PATTERN` PRUNEABLES=`$PRUNEABLES_CMD $PATTERN`
if test "$?" -eq "0" ; then if test "$?" -eq "0" ; then
message "pruning older files based on $PATTERN.$BU_SUFFIX" message "pruning older files based on $PATTERN"
BU_TO_KEEP=$BU_TO_KEEP_${!2}
message "keeping last $BU_TO_KEEP backups" message "keeping last $BU_TO_KEEP backups"
# #
# set counter # set counter
@ -121,15 +122,12 @@ delete_old() {
NUM=$(($NUM + 1)) NUM=$(($NUM + 1))
if test $NUM -gt $BU_TO_KEEP ; then if test $NUM -gt $BU_TO_KEEP ; then
message "deleting $PRUNEABLE" message "deleting $PRUNEABLE"
rm $PRUNEABLE 2>&1 > /dev/null #rm $PRUNEABLE 2>&1 > /dev/null
else else
message "keeping $PRUNEABLE" message "keeping $PRUNEABLE"
fi fi
done done
fi fi
else
message "keeping older backups, missing backup_root_filename..."
fi
} }
# #
# #
@ -199,22 +197,22 @@ verbose "going to $DC_DIR"
OLD_DIR=`pwd` OLD_DIR=`pwd`
cd $DC_DIR cd $DC_DIR
# #
# run the backup...
#
# a timestamp for logging purposes # a timestamp for logging purposes
STAMP=`date '+%Y-%m-%d_%H-%M-%S'` STAMP=`date '+%Y-%m-%d_%H-%M-%S'`
# delete stale backups
#
# delete_old
# #
# generate the filename # generate the filename
INC="BU_FROOT_$TASK" INC="BU_FROOT_$TASK"
FILENAME=$BU_FROOT-${!INC}-$STAMP.sql FILEPART=$BU_FROOT-${!INC}
FILENAME=$FILEPART-$STAMP.sql
FILEPATH=$BU_DIR/$FILENAME FILEPATH=$BU_DIR/$FILENAME
#
# delete stale backups
delete_old $FILEPART
#
message "backing up all the databases into $FILEPATH" message "backing up all the databases into $FILEPATH"
# dump the data into the file # dump the data into the file
# #
do_backup $FILEPATH do_backup $FILEPATH $TASK
# #
message "completed backup" message "completed backup"
# compress the backup # compress the backup