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# -*- shell-script -*-
mount-crypt () {
if mountpoint -q -- ~/Crypt; then
printf '%s\n' 'mount-crypt: already mounted' >&2
elif test -e /dev/mapper/CryptCrypt; then
asroot env CRYPT_DIR=~/Crypt sh -ec \
'mount -- /dev/mapper/CryptCrypt "${CRYPT_DIR}"'
else
gpg --decrypt /media/Secondary/.crypt/crypt.key | \
key2root -k CryptCrypt env \
CRYPT_IMG=/media/Secondary/.crypt/crypt.img \
CRYPT_DIR=~/Crypt \
CRYPT_DEV="$(losetup | sed 's/\s\+/ /g' | cut -d ' ' -f 1,6 | \
sed -n 's#\(/[^ ]*\) '"$(realpath -- /media/Secondary/.crypt/crypt.img)"'$#\1#p' | sed 1q)" \
sh -ec '
if test -z "${CRYPT_DEV}"; then
CRYPT_DEV="$(losetup --show -f -P "${CRYPT_IMG}")"
fi
cryptsetup -d - open "${CRYPT_DEV}" CryptCrypt
mkdir -p -- "${CRYPT_DIR}"
mount -- /dev/mapper/CryptCrypt "${CRYPT_DIR}"
'
fi
}
umount-crypt () {
asroot env \
CRYPT_DIR=~/Crypt \
CRYPT_DEV="$(losetup | sed 's/\s\+/ /g' | cut -d ' ' -f 1,6 | \
sed -n 's#\(/[^ ]*\) '"$(realpath -- /media/Secondary/.crypt/crypt.img)"'$#\1#p' | sed 1q)" \
sh -c '
if mountpoint -q -- "${CRYPT_DIR}"; then
umount -- "${CRYPT_DIR}"
fi
rmdir -- "${CRYPT_DIR}" || :
if test -e /dev/mapper/CryptCrypt; then
cryptsetup close CryptCrypt
fi
if test -n "${CRYPT_DEV}"; then
losetup -d "${CRYPT_DEV}"
fi
'
}
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