From 81b7f8b247aeb2c04b771e1527657945f859df0f Mon Sep 17 00:00:00 2001
From: Vincent Riquer <vincent+gitorious@riquer.fr>
Date: Wed, 19 Jun 2013 02:34:47 +0200
Subject: [PATCH] setup/destination: channels

---
 lib/setup/setupDestination | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/setup/setupDestination b/lib/setup/setupDestination
index ab624c8..0697a77 100644
--- a/lib/setup/setupDestination
+++ b/lib/setup/setupDestination
@@ -334,11 +334,25 @@ setupDestination() {
 	done
 	unset copiedmimes
 	cat <<-EODesc
+
+        Channels (integer):
+            Produced files should have this many channels, no more, no less.
 	EODesc
+	expr='^[0-9]*$'
 	comeagain() {
-		:
+		read							\
+			-e						\
+			${destinationchannels["$destination"]+-i${destinationchannels["$destination"]}}\
+			-p'Channel count: '				\
+			value
+		if ! [[ $value =~ $expr ]]
+		then
+			echo "Invalid channel count: $value" >&2
+			comeagain
+		fi
 	}
 	comeagain
+	destinationchannels["$destination"]=$value
 	cat <<-EODesc
 	EODesc
 	comeagain() {