From 0f1df0db903ba576fd17b08197d3066af7a61e5f Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Sat, 18 Nov 2023 23:23:40 +0100
Subject: A lot of changes
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 bash/aliases-Zenith | 49 ++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 36 insertions(+), 13 deletions(-)

(limited to 'bash/aliases-Zenith')

diff --git a/bash/aliases-Zenith b/bash/aliases-Zenith
index 73db885..e4e7422 100644
--- a/bash/aliases-Zenith
+++ b/bash/aliases-Zenith
@@ -1,21 +1,44 @@
 # -*- shell-script -*-
 
 mount-crypt () {
-	gpg --decrypt /media/Secondary/.crypt/crypt.key | \
-	asroot env XDG_RUNTIME_DIR="${XDG_RUNTIME_DIR}" CRYPT_DIR=~/Crypt sh -ec '
-		device="$(losetup --show -f -P /media/Secondary/.crypt/crypt.img)"
-		printf "%s\n" "${device}" > "${XDG_RUNTIME_DIR}/CryptCrypt"
-		cryptsetup -d - open "${device}" CryptCrypt
-		mkdir -p "${CRYPT_DIR}"
-		mount /dev/mapper/CryptCrypt "${CRYPT_DIR}"
-		'
+	if mountpoint -q -- ~/Crypt; then
+		printf '%s\n' 'mount-crypt: already mounted' >&2
+	elif test -e /dev/mapper/CryptCrypt; then
+		asroot env CRYPT_DIR=~/Crypt sh -ec \
+			'mount -- /dev/mapper/CryptCrypt "${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 XDG_RUNTIME_DIR="${XDG_RUNTIME_DIR}" CRYPT_DIR=~/Crypt sh -c '
-		umount "${CRYPT_DIR}"
-		rmdir "${CRYPT_DIR}"
-		cryptsetup close CryptCrypt
-		losetup --detach "$(cat -- "${XDG_RUNTIME_DIR}/CryptCrypt")"
+	asroot env \
+		CRYPT_DIR=~/Crypt \
+		CRYPT_DEV="$(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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