From nobody Fri Dec 19 20:42:10 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=virtuozzo.com ARC-Seal: i=1; a=rsa-sha256; t=1591920387; cv=none; d=zohomail.com; s=zohoarc; b=Iy59oJXo0bFJG0WZU3M0zEKezq8oyZauOxx5/ToF3+Oq9APHl4Gl7yyQY59GZXHKQF01NayZwTZOBbTqvXdV9aoKFEFV/0d+k5548P8Zg9lS98AYpgbpftGzQSp+XeB/Gn3gs+DQEuJwkVoSeDzJJEcAU45Qv1vLS0KIK8tHfME= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1591920387; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=z+f0yShr2f80MH94g9pqe/+6QmY0N+ep+k0xzD583ik=; b=mO6vC4mIrTvFQ7d+joP4cN4XzxMMM+/xAg1WUYRp191/oeysIP+9ZGltpwhzZIdsz/P63Gxv44zyLog0e7VybzabiS2ghxnXHg64PtVBf1EsZv6akrmPitUIlDz0BsHjRksKJBUU+a5yNs4Uc+QkL3uH8MLTOVrZIHlqati1lP4= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1591920387512164.56495189918792; Thu, 11 Jun 2020 17:06:27 -0700 (PDT) Received: from localhost ([::1]:36702 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jjXDG-0001yp-0i for importer@patchew.org; Thu, 11 Jun 2020 20:06:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56588) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jjXC2-0008Lr-ER; Thu, 11 Jun 2020 20:05:10 -0400 Received: from relay.sw.ru ([185.231.240.75]:52837 helo=relay3.sw.ru) by eggs.gnu.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jjXBy-0006IA-K0; Thu, 11 Jun 2020 20:05:10 -0400 Received: from [172.16.25.136] (helo=localhost.sw.ru) by relay3.sw.ru with esmtp (Exim 4.93) (envelope-from ) id 1jjXBr-0002Yd-OG; Fri, 12 Jun 2020 03:04:59 +0300 From: Andrey Shinkevich To: qemu-block@nongnu.org Subject: [PATCH v7 7/9] qcow2.py: Introduce '-j' key to dump in JSON format Date: Fri, 12 Jun 2020 03:05:00 +0300 Message-Id: <1591920302-1002219-8-git-send-email-andrey.shinkevich@virtuozzo.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1591920302-1002219-1-git-send-email-andrey.shinkevich@virtuozzo.com> References: <1591920302-1002219-1-git-send-email-andrey.shinkevich@virtuozzo.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=185.231.240.75; envelope-from=andrey.shinkevich@virtuozzo.com; helo=relay3.sw.ru X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/11 20:05:03 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, vsementsov@virtuozzo.com, qemu-devel@nongnu.org, mreitz@redhat.com, andrey.shinkevich@virtuozzo.com, den@openvz.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Add the command key to the qcow2.py arguments list to dump QCOW2 metadata in JSON format. Here is the suggested way to do that. The implementation of the dump in JSON format is in the patch that follows. Signed-off-by: Andrey Shinkevich --- tests/qemu-iotests/qcow2.py | 20 +++++++++++++++----- tests/qemu-iotests/qcow2_format.py | 18 +++++++++--------- 2 files changed, 24 insertions(+), 14 deletions(-) diff --git a/tests/qemu-iotests/qcow2.py b/tests/qemu-iotests/qcow2.py index 8c187e9..b08d8fc 100755 --- a/tests/qemu-iotests/qcow2.py +++ b/tests/qemu-iotests/qcow2.py @@ -24,16 +24,19 @@ from qcow2_format import ( ) =20 =20 +dump_json =3D False + + def cmd_dump_header(fd): h =3D QcowHeader(fd) - h.dump() + h.dump(dump_json) print() - h.dump_extensions() + h.dump_extensions(dump_json) =20 =20 def cmd_dump_header_exts(fd): h =3D QcowHeader(fd) - h.dump_extensions() + h.dump_extensions(dump_json) =20 =20 def cmd_set_header(fd, name, value): @@ -132,6 +135,11 @@ cmds =3D [ =20 =20 def main(filename, cmd, args): + global dump_json + dump_json =3D '-j' in sys.argv + if dump_json: + sys.argv.remove('-j') + args.remove('-j') fd =3D open(filename, "r+b") try: for name, handler, num_args, desc in cmds: @@ -149,12 +157,14 @@ def main(filename, cmd, args): =20 =20 def usage(): - print("Usage: %s [, ...]" % sys.argv[0]) + print("Usage: %s [, ...] [, ...]" % sys.argv[0]) print("") print("Supported commands:") for name, handler, num_args, desc in cmds: print(" %-20s - %s" % (name, desc)) - + print("") + print("Supported keys:") + print(" %-20s - %s" % ('-j', 'Dump in JSON format')) =20 if __name__ =3D=3D '__main__': if len(sys.argv) < 3: diff --git a/tests/qemu-iotests/qcow2_format.py b/tests/qemu-iotests/qcow2_= format.py index c1c2773..a19f3b3 100644 --- a/tests/qemu-iotests/qcow2_format.py +++ b/tests/qemu-iotests/qcow2_format.py @@ -92,7 +92,7 @@ class Qcow2Struct(metaclass=3DQcow2StructMeta): self.__dict__ =3D dict((field[2], values[i]) for i, field in enumerate(self.fields)) =20 - def dump(self): + def dump(self, dump_json=3DNone): for f in self.fields: value =3D self.__dict__[f[2]] if isinstance(f[1], str): @@ -143,10 +143,10 @@ class Qcow2BitmapExt(Qcow2Struct): def load(self, fd): self.read_bitmap_directory(fd) =20 - def dump(self): - super().dump() + def dump(self, dump_json=3DNone): + super().dump(dump_json) for bm in self.bitmaps: - bm.dump_bitmap_dir_entry() + bm.dump_bitmap_dir_entry(dump_json) =20 =20 BME_FLAG_IN_USE =3D 1 << 0 @@ -190,7 +190,7 @@ class Qcow2BitmapDirEntry(Qcow2Struct): table =3D [e[0] for e in struct.iter_unpack('>Q', fd.read(table_si= ze))] self.bitmap_table =3D Qcow2BitmapTable(table) =20 - def dump_bitmap_dir_entry(self): + def dump_bitmap_dir_entry(self, dump_json=3DNone): print() print(f'{"Bitmap name":<25} {self.name}') for fl in self.bitmap_flags: @@ -296,13 +296,13 @@ class QcowHeaderExtension(Qcow2Struct): else: self.obj =3D None =20 - def dump(self): + def dump(self, dump_json=3DNone): super().dump() =20 if self.obj is None: print(f'{"data":<25} {self.data_str}') else: - self.obj.dump() + self.obj.dump(dump_json) =20 @classmethod def create(cls, magic, data): @@ -405,8 +405,8 @@ class QcowHeader(Qcow2Struct): buf =3D buf[0:header_bytes-1] fd.write(buf) =20 - def dump_extensions(self): + def dump_extensions(self, dump_json=3DNone): for ex in self.extensions: print('Header extension:') - ex.dump() + ex.dump(dump_json) print() --=20 1.8.3.1