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#!/bin/sh
set -eu
command="$1"
name="$2"
file="${HOME}/crypt/${name}.luks"
dev="/dev/mapper/$name"
case "$command" in
create)
size=$3
count=${4:-1}
dd if=/dev/urandom of="$file" bs="$size" count="$count" iflag=fullblock
sudo cryptsetup luksFormat "$file"
sudo cryptsetup open "$file" "$name"
sudo mkfs.ext4 "$dev"
sudo mount "$dev" /mnt
sudo chown "$USER" /mnt
sudo umount /mnt
sudo cryptsetup close "$name"
;;
open)
sudo cryptsetup open "$file" "$name"
sudo mount "$dev" /mnt
;;
close)
sudo umount /mnt
sudo cryptsetup close "$name"
;;
esac
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