2023-08-31 17:55:25 +00:00
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#!/bin/sh
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#
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# BTRFS rolling snapshots
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# CC0 ~caskd
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: ${SRC:?'Source not defined'}
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: ${DEST:?'Destination not defined'}
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: ${NAME:?'Name not defined'}
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: ${SN:?'Selection name not defined'}
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: ${RT:?'Retention time not defined'}
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s="$SRC"
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d="$DEST/$SN/$NAME"
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mkdir -p "${d%/*}"
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2024-11-22 11:44:59 +00:00
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find "$DEST" -mindepth 1 -maxdepth 1 -type d -ctime +"$RT" -exec echo "{}/$NAME" ';' | xargs -r btrfs subvolume del
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2023-08-31 17:55:25 +00:00
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btrfs subvolume delete "$d"
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btrfs subvolume snapshot -r "$s" "$d"
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