New: copy with progress if possible

Signed-off-by: Miroslav Safr <Miroslav.Safr@gmail.com>

rvmb

@@ -16,7 +16,9 @@ alias echo="/bin/echo -e"
 debug(){ [ ${DEBUG_FLAG:-0} -eq 0 ] || echo "Running($#): $*"; }
 verbose(){ [ ${VERBOSE_FLAG:-0} -eq 0 ] || echo "\033[36m$*\033[00m"; }
 fail() { printf "\n\033[01;31mERROR: $*\033[00m\n" ; exit 1 ; }
-
+copy_with_progress() {
+    if command -v rsync 1>/dev/null 2>&1; then rsync -avI --progress $1 $2 ; else cp -f $1 $2 ; fi
+}
 usage() {
     echo "$BASENAME ${VERSION} - Rapid VM builder for qemu-kvm"
     echo " http://safrm.net/projects/rvmo/"
@@ -213,7 +215,7 @@ rvmb_create_disk()
 	#clone or create
 	if [ -e $BASE_DISK_NAME.$DISK_FORMAT_EXT -a -n $CLONE_NO ]; then
 		verbose "Copying image: $BASE_DISK_NAME.$DISK_FORMAT_EXT to $DISK_NAME.$DISK_FORMAT_EXT $DISK_SIZE"
-		cp -f $BASE_DISK_NAME.$DISK_FORMAT_EXT $DISK_NAME.$DISK_FORMAT_EXT 
+copy_with_progress $BASE_DISK_NAME.$DISK_FORMAT_EXT $DISK_NAME.$DISK_FORMAT_EXT 
 		return 2;
 	else
 		verbose "Creating image: $DISK_NAME.$DISK_FORMAT_EXT $DISK_SIZE"