[v5,01/13] iotests: Move _filter_nbd into common.filter

_filter_nbd can be useful for other NBD tests, too, therefore it should
reside in common.filter, and it should support URLs of the "nbd://"
format and export names.

The NBD log lines ("/your/source/dir/nbd.c:function():line: error")
should not be converted to empty lines but removed altogether.

Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 tests/qemu-iotests/083           | 13 +------------
 tests/qemu-iotests/083.out       | 10 ----------
 tests/qemu-iotests/common.filter | 12 ++++++++++++
 3 files changed, 13 insertions(+), 22 deletions(-)

On Tue, 03/03 15:12, Max Reitz wrote:
> _filter_nbd can be useful for other NBD tests, too, therefore it should
> reside in common.filter, and it should support URLs of the "nbd://"
> format and export names.
> 
> The NBD log lines ("/your/source/dir/nbd.c:function():line: error")
> should not be converted to empty lines but removed altogether.
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  tests/qemu-iotests/083           | 13 +------------
>  tests/qemu-iotests/083.out       | 10 ----------
>  tests/qemu-iotests/common.filter | 12 ++++++++++++
>  3 files changed, 13 insertions(+), 22 deletions(-)
> 
> diff --git a/tests/qemu-iotests/083 b/tests/qemu-iotests/083
> index 1b2d3f1..aa99278 100755
> --- a/tests/qemu-iotests/083
> +++ b/tests/qemu-iotests/083
> @@ -49,17 +49,6 @@ wait_for_tcp_port() {
>  	done
>  }
>  
> -filter_nbd() {
> -	# nbd.c error messages contain function names and line numbers that are prone
> -	# to change.  Message ordering depends on timing between send and receive
> -	# callbacks sometimes, making them unreliable.
> -	#
> -	# Filter out the TCP port number since this changes between runs.
> -	sed -e 's#^.*nbd\.c:.*##g' \
> -	    -e 's#nbd:127\.0\.0\.1:[^:]*:#nbd:127\.0\.0\.1:PORT:#g' \
> -            -e 's#\(exportname=foo\|PORT\): Failed to .*$#\1#'
> -}
> -
>  check_disconnect() {
>  	event=$1
>  	when=$2
> @@ -84,7 +73,7 @@ EOF
>  
>  	$PYTHON nbd-fault-injector.py $extra_args "127.0.0.1:$port" "$TEST_DIR/nbd-fault-injector.conf" 2>&1 >/dev/null &
>  	wait_for_tcp_port "127\\.0\\.0\\.1:$port"
> -	$QEMU_IO -c "read 0 512" "$nbd_url" 2>&1 | _filter_qemu_io | filter_nbd
> +	$QEMU_IO -c "read 0 512" "$nbd_url" 2>&1 | _filter_qemu_io | _filter_nbd
>  
>  	echo
>  }
> diff --git a/tests/qemu-iotests/083.out b/tests/qemu-iotests/083.out
> index 8c1441b..5c9141b 100644
> --- a/tests/qemu-iotests/083.out
> +++ b/tests/qemu-iotests/083.out
> @@ -51,7 +51,6 @@ no file open, try 'help open'
>  
>  === Check disconnect after neg2 ===
>  
> -
>  read failed: Input/output error
>  
>  === Check disconnect 8 neg2 ===
> @@ -66,42 +65,34 @@ no file open, try 'help open'
>  
>  === Check disconnect before request ===
>  
> -
>  read failed: Input/output error
>  
>  === Check disconnect after request ===
>  
> -
>  read failed: Input/output error
>  
>  === Check disconnect before reply ===
>  
> -
>  read failed: Input/output error
>  
>  === Check disconnect after reply ===
>  
> -
>  read failed: Input/output error
>  
>  === Check disconnect 4 reply ===
>  
> -
>  read failed: Input/output error
>  
>  === Check disconnect 8 reply ===
>  
> -
>  read failed: Input/output error
>  
>  === Check disconnect before data ===
>  
> -
>  read failed: Input/output error
>  
>  === Check disconnect after data ===
>  
> -
>  read 512/512 bytes at offset 0
>  512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>  
> @@ -132,7 +123,6 @@ no file open, try 'help open'
>  
>  === Check disconnect after neg-classic ===
>  
> -
>  read failed: Input/output error
>  
>  *** done
> diff --git a/tests/qemu-iotests/common.filter b/tests/qemu-iotests/common.filter
> index 012a812..99a1fc2 100644
> --- a/tests/qemu-iotests/common.filter
> +++ b/tests/qemu-iotests/common.filter
> @@ -225,5 +225,17 @@ _filter_qemu_img_map()
>          -e 's/Mapped to *//' | _filter_testdir | _filter_imgfmt
>  }
>  
> +_filter_nbd()
> +{
> +    # nbd.c error messages contain function names and line numbers that are
> +    # prone to change.  Message ordering depends on timing between send and
> +    # receive callbacks sometimes, making them unreliable.
> +    #
> +    # Filter out the TCP port number since this changes between runs.
> +    sed -e '/nbd\.c:/d' \
> +        -e 's#nbd:\(//\)\?127\.0\.0\.1:[0-9]*#nbd:\1127.0.0.1:PORT#g' \
> +        -e 's#\(exportname=foo\|PORT\): Failed to .*$#\1#'
> +}
> +
>  # make sure this script returns success
>  true
> -- 
> 2.1.0
> 

Reviewed-by: Fam Zheng <famz@redhat.com>