51 lines
1.4 KiB
Bash
Executable file
51 lines
1.4 KiB
Bash
Executable file
#!/bin/bash
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KEEP_DAILY=${KEEP_DAILY:-6}
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KEEP_WEEKLY=${KEEP_WEEKLY:-3}
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KEEP_MONTHLY=${KEEP_MONTHLY:-48}
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KEEP_YEARLY=${KEEP_YEARLY:-0}
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echo "Starting backup script at `date`"
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export BORG_RSH='ssh -oBatchMode=yes' # https://borgbackup.readthedocs.io/en/stable/usage/notes.html#ssh-batch-mode
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# break any stale locks in case the script was interrupted
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borg break-lock
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borg info # test whether we have a valid repository
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if [ $? -ne 0 ]; then
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echo "Borg info returned a non-zero status. Initializing Borg..."
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borg init --encryption=repokey
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fi
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# The above command will fail if the repo hasn't been already initialized,
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# so we can ignore the return status. However, if any of the commands below fail,
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# we want to stop the script immediately.
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set -e
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if [ -d "/snapshot/source" ]; then
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btrfs subvolume delete /snapshot/source
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fi
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btrfs subvolume snapshot /source /snapshot
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cd /snapshot/source
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borg create --stats \
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--list \
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--filter=AMCE \
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--files-cache=ctime,size,inode \
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--compression=zstd,12 \
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--exclude-from /exclude.conf ::"{hostname}-{now:%Y-%m-%dT%H:%M:%S}" .
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cd -
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borg prune --list --stats \
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--keep-daily=$KEEP_DAILY \
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--keep-weekly=$KEEP_WEEKLY \
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--keep-monthly=$KEEP_MONTHLY \
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--keep-yearly=$KEEP_YEARLY
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borg compact --threshold=5 --cleanup-commits --verbose --progress
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btrfs subvolume delete /snapshot/source
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echo "Finished backup script at `date`"
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