39 lines
802 B
Bash
39 lines
802 B
Bash
# shellcheck shell=bash
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if [[ "${EUID}" -ne 0 ]]; then
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echo "Please run the script as root."
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exit 1
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fi
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delete_subvolume_recursively() {
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IFS=$'\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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if [[ -e /mnt/btrfs && -n $(mountpoint -q /mnt/btrfs) ]]; then
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echo "/mnt/btrfs is already mounted. Exiting."
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exit 1
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fi
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mkdir -p /mnt/btrfs
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mount "$DEVICE" /mnt/btrfs
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if [[ -e /mnt/btrfs/@.bak ]]; then
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if [[ -n "$(ls -A /mnt/btrfs/@.bak)" ]]; then
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for i in /mnt/btrfs/@.bak/*; do
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delete_subvolume_recursively "$i"
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done
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else
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echo "/mnt/btrfs/@.bak is empty. Nothing to delete."
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fi
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fi
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umount /mnt/btrfs
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rmdir /mnt/btrfs
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nix-collect-garbage -d
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nix-store --gc -v
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