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Added new handle_logs function

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Tristan Ancelet 2024-06-06 17:15:31 -05:00
parent 2e9d4712fa
commit ef2bb4f28a
1 changed files with 56 additions and 2 deletions
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58
do-daily-btrfs-snapshot.sh
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@ -50,8 +50,56 @@ DATE_REGEX='[0-9]{4}-[0-9]{2}-[0-9]{2}'
# END: Variables
# BEGIN: Helper Functions
function handle_logs() {
cd $LOG_DIR
echo "Began Handling logs at: $(date)"
local ARCHIVE_FILE=archive.tar.gz
local ARCHIVE_FILE_UNZIPED=${ARCHIVE_FILE%.gz}
if [[ -f $ARCHIVE_FILE ]]; then
## Decompressing archive in case it exists
gunzip $ARCHIVE_FILE 2>/dev/null
fi
## Getting all files
local FILES=( $( ls -1tr *.log ) )
if [[ ${#FILES[@]} -le $LIMIT ]]; then
echo "Only had ${#FILES[@]} logs, and did not exceed $LIMIT. Not handling logs"
return
fi
## Getting files we are keeping
local FILES_TO_KEEP=${FILES[@]: -$LIMIT}
## Creating REGEX filter
FILES_TO_KEEP=${FILES_TO_KEEP//[[:space:]]/|}
## Filtering out logs to keep
local FILES_TO_ARCHIVE=( $( ls -1 *.log | grep -Ev "(${FILES_TO_KEEP})" ) )
echo "Adding archived logs to archive"
## Updating archive
tar uvf $ARCHIVE_FILE_UNZIPED ${FILES_TO_ARCHIVE[@]}
## Compressing Archive
echo "Compressing Archive"
gzip $ARCHIVE_FILE_UNZIPED
## Removing archived logs
echo "Removing archived files"
rm -vf ${FILES_TO_ARCHIVE[@]}
echo "Finished Handling logs at: $(date)"
}
# END: Helper Functions
# BEGIN: Pre-Work Checks
## Setting up the script to direct all output to the log file for this snapshot session
exec > $LOG_FILE
## This will check to make sure that the log directory has been created, if not it will create it
@ -60,7 +108,6 @@ exec > $LOG_FILE
echo "$LOG_DIR did not exist. Creating"
}
## Setting up the script to direct all output to the log file for this snapshot session
# END: Pre-Work Checks
@ -104,8 +151,15 @@ for SUBVOL_INFO in ${SUBVOLS[@]}; do
SNAPSHOT=$SUBVOL_BACKUP_DIR/$DATE
## If the snapshot doesn't already exist, then create a new read-only snapshot
[[ ! -d $SNAPSHOT ]] && /usr/sbin/btrfs subvol snapshot -r $DIR $SNAPSHOT
if [[ ! -d $SNAPSHOT ]]; then
/usr/sbin/btrfs subvol snapshot -r $DIR $SNAPSHOT
else
echo "$SNAPSHOT already existed. Not backing up"
fi
done
handle_logs
echo "Finishing backup at `date`"
# END: Work