#! /bin/sh
renice 20 -p $$
+guestfish=true
+if [ "$1" = "-n" ];then
+ guestfish=false
+ shift
+fi
for file in "$@";do
if [ "$file" = "${file%.qcow2}" ];then
echo >&2 "Invalid: <$file>"
set -xe
mv -i "$file" "$file"-src
rm -f "$file"-dest
- test "$(guestfish -n -a "$file"-src run : list-devices : list-partitions|tr '\n' ' ')" = "/dev/vda /dev/vda1 "
- guestfish -n -a "$file"-src run : zerofree /dev/vda1
+ if $guestfish;then
+ test "$(guestfish -n -a "$file"-src run : list-devices : list-partitions|tr '\n' ' ')" = "/dev/vda /dev/vda1 "
+ guestfish -n -a "$file"-src run : zerofree /dev/vda1
+ fi
time qemu-img convert -c -f qcow2 "$file"-src -O qcow2 "$file"-dest
mv -i "$file"-dest "$file"
rm -f "$file"-src