From c818e80ee5819858e29624593faca998b08efd99 Mon Sep 17 00:00:00 2001
From: Jakob Odersky <jakob@odersky.com>
Date: Sat, 13 Aug 2016 22:38:08 -0700
Subject: Interactively ask for root permissions

---
 home/bin/backup | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

(limited to 'home/bin')

diff --git a/home/bin/backup b/home/bin/backup
index 543b765..648b59d 100755
--- a/home/bin/backup
+++ b/home/bin/backup
@@ -1,25 +1,21 @@
 #!/bin/bash
 set -e
 
-DEVICE=/dev/sdb
-MAPPED=backup
-
-if [ "$EUID" -ne 0 ]; then
-    echo "Need to be root" >&2
-    exit 1
-fi
+device=/dev/sdb
+mapped=backup
 
 case "$1" in
     mount)
-	cryptsetup open "$DEVICE" "$MAPPED"
-	mount /dev/mapper/"$MAPPED" /mnt
+	echo $(pass other/backup) | sudo cryptsetup open --type luks "$device" "$mapped"
+	sudo mount /dev/mapper/"$mapped" /mnt
 	;;
     umount)
-       	umount /mnt
-	cryptsetup close "$MAPPED"
+	sudo umount /mnt
+	sudo cryptsetup close "$mapped"
 	;;
     *)
 	echo "Unknown argument $1"
+	echo "Usage: $0 [mount | umount]"
 	exit 1
 	;;
 esac
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