26 lines
653 B
Bash
26 lines
653 B
Bash
delete_subvolume_recursively() {
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IFS=$'\n'
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for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
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delete_subvolume_recursively "/mnt/btrfs/$i"
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done
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btrfs subvolume delete "$1"
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}
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mkdir -p /mnt/btrfs
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mount /dev/mapper/luks /mnt/btrfs
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if [[ -e /mnt/btrfs/root ]]; then
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mkdir -p /mnt/btrfs/root.bak
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timestamp=$(date --date="@$(stat -c %Y /mnt/btrfs/root)" "+%Y-%m-%-d_%H:%M:%S")
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mv /mnt/btrfs/root "/mnt/btrfs/root.bak/$timestamp"
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fi
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find /mnt/btrfs/root.bak/ -maxdepth 1 -mtime +30 | while IFS= read -r i; do
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delete_subvolume_recursively "$i"
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done
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btrfs subvolume create /mnt/btrfs/root
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umount /mnt/btrfs
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rmdir /mnt/btrfs
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