From 43395e3a70c0b2eae19aec5bf048bfb37fd49ad3 Mon Sep 17 00:00:00 2001
From: Dave Parker <dparker@chromium.org>
Date: Wed, 22 Jun 2011 08:28:43 -0700
Subject: [PATCH] Only copy the final image file on local disk if it is not in
 the default location.

BUG=None
TEST=run with a "--to" path that is the default location where the image is generated.
Verify the final image is not 0 bytes.

Change-Id: Ib9a7feceb17054362f00a813c369564e753cd3ab
Reviewed-on: http://gerrit.chromium.org/gerrit/2988
Tested-by: Dave Parker <dparker@chromium.org>
Reviewed-by: Chris Sosa <sosa@chromium.org>
Reviewed-by: Nick Sanders <nsanders@chromium.org>
---
 image_to_usb.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/image_to_usb.sh b/image_to_usb.sh
index c0c1d966f2..7a203be6b1 100755
--- a/image_to_usb.sh
+++ b/image_to_usb.sh
@@ -261,8 +261,10 @@ if [ -b "${FLAGS_to}" ]; then
   echo "Done."
 else
   # Output to a file, so just make a copy.
-  echo "Copying ${SRC_IMAGE} to ${FLAGS_to}..."
-  ${COMMON_PV_CAT} "${SRC_IMAGE}" >"${FLAGS_to}"
+  if [ "${SRC_IMAGE}" != "${FLAGS_to}" ]; then
+    echo "Copying ${SRC_IMAGE} to ${FLAGS_to}..."
+    ${COMMON_PV_CAT} "${SRC_IMAGE}" >"${FLAGS_to}"
+  fi
 
   echo "Done.  To copy to a USB/MMC drive, do something like:"
   echo "   sudo dd if=${FLAGS_to} of=/dev/sdX bs=4M oflag=sync"