#!/usr/bin/env bash
# nbdkit
# Copyright Red Hat
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# Test that qemu-img info works on a qcow2 file in a tar file.

source ./functions.sh
set -e
set -x

requires test -f disk
requires guestfish --version
requires tar --version
requires qemu-img --version
requires qemu-img info --output=json /dev/null
requires jq --version
requires $STAT --version

disk=tar-info-disk.qcow2
out=tar-info.out
tar=tar-info.tar
files="$disk $out $tar"
rm -f $files
cleanup_fn rm -f $files

# Create a tar file containing a known qcow2 file.
qemu-img convert -f raw disk -O qcow2 $disk
tar cf $tar $disk

# Run nbdkit.
nbdkit -U - file $tar \
       --filter=tar tar-entry=$disk \
       --run 'qemu-img info --output=json $nbd' > $out
cat $out

# Check various fields in the input.
# Virtual size must be the same as the size of the original raw disk.
test "$( jq -r -c '.["virtual-size"]' $out )" -eq "$( $STAT -c %s disk )"

# Format must be qcow2.
test "$( jq -r -c '.["format"]' $out )" = "qcow2"
