iotests: Introduce qemu_nbd_list_log()

Add a function to list the NBD exports offered by an NBD server.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200924152717.287415-30-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2020-09-24 17:27:15 +02:00
parent 91efbae938
commit 81b6b2bc1a

View File

@ -65,7 +65,8 @@ if os.environ.get('QEMU_IO_OPTIONS_NO_FMT'):
qemu_io_args_no_fmt += \ qemu_io_args_no_fmt += \
os.environ['QEMU_IO_OPTIONS_NO_FMT'].strip().split(' ') os.environ['QEMU_IO_OPTIONS_NO_FMT'].strip().split(' ')
qemu_nbd_args = [os.environ.get('QEMU_NBD_PROG', 'qemu-nbd')] qemu_nbd_prog = os.environ.get('QEMU_NBD_PROG', 'qemu-nbd')
qemu_nbd_args = [qemu_nbd_prog]
if os.environ.get('QEMU_NBD_OPTIONS'): if os.environ.get('QEMU_NBD_OPTIONS'):
qemu_nbd_args += os.environ['QEMU_NBD_OPTIONS'].strip().split(' ') qemu_nbd_args += os.environ['QEMU_NBD_OPTIONS'].strip().split(' ')
@ -280,6 +281,13 @@ def qemu_nbd_early_pipe(*args: str) -> Tuple[int, str]:
connect_stderr=False) connect_stderr=False)
return returncode, output if returncode else '' return returncode, output if returncode else ''
def qemu_nbd_list_log(*args: str) -> str:
'''Run qemu-nbd to list remote exports'''
full_args = [qemu_nbd_prog, '-L'] + list(args)
output, _ = qemu_tool_pipe_and_status('qemu-nbd', full_args)
log(output, filters=[filter_testfiles, filter_nbd_exports])
return output
@contextmanager @contextmanager
def qemu_nbd_popen(*args): def qemu_nbd_popen(*args):
'''Context manager running qemu-nbd within the context''' '''Context manager running qemu-nbd within the context'''
@ -413,6 +421,9 @@ def filter_qmp_imgfmt(qmsg):
return value return value
return filter_qmp(qmsg, _filter) return filter_qmp(qmsg, _filter)
def filter_nbd_exports(output: str) -> str:
return re.sub(r'((min|opt|max) block): [0-9]+', r'\1: XXX', output)
Msg = TypeVar('Msg', Dict[str, Any], List[Any], str) Msg = TypeVar('Msg', Dict[str, Any], List[Any], str)