ch: check permissions of $CHROOT directory

Signed-off-by: Florian Pritz <bluewind@xinu.at>

1 files changed, 5 insertions, 0 deletions

diff --git a/ch b/ch
index bcc759b..00def24 100755
--- a/ch
+++ b/ch
@@ -39,6 +39,11 @@ shopt -s nullglob
 
 umask 022
 
+if [[ ! -d "$CHROOTS" ]]; then
+	echo "chroot base directory '$CHROOTS' does not exist or is not readable"
+	return 1
+fi
+
 __genchroot() {
 	sudo btrfs subvolume snapshot "$chrootdir/root" "$copydir"
 }