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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1742315780; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=aD3XptiGY0q8bTfzzfMt/ed3Ps/Cu6ykYAwObd+Bvlg=; b=TWVVoKv1qTqok2vGNC/602BxM2xZaxDZig5TLy0yJ9UCMW9QtWAE9a3xldB6XgULuz41As HX4v6qlfiNRfdZZ0DEX3mNH+8BtldZ0wufPojoOrepOFkFqxvB4eD0cu+tsGkA72QCHW7q 7A3Mkuw49cYxw9SzekLnEShIBURKwns= X-MC-Unique: oUK13ubXPp6UNrzVDEwBaQ-1 X-Mimecast-MFC-AGG-ID: oUK13ubXPp6UNrzVDEwBaQ_1742315777 From: Peter Krempa To: qemu-devel@nongnu.org Cc: John Snow , Cleber Rosa , qemu-block@nongnu.org Subject: [PATCH 3/3] scripts: render_block_graph: Avoid backtrace on error from virsh Date: Tue, 18 Mar 2025 17:36:04 +0100 Message-ID: <8926805f0283b8aca7d709ae06b1103db857cbde.1742315602.git.pkrempa@redhat.com> In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" From: Peter Krempa An error from virsh spews also backtrace: $ ./scripts/render_block_graph.py --vm doesnotexist error: failed to get domain 'doesnotexist' Traceback (most recent call last): File "/home/pipo/git/qemu.git/./scripts/render_block_graph.py", line 15= 2, in render_block_graph(qmp, out) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^ File "/home/pipo/git/qemu.git/./scripts/render_block_graph.py", line 47= , in render_block_graph [snipped] instead of just the important bits: $ ./scripts/render_block_graph.py --vm doesnotexist error: failed to get domain 'doesnotexist' Catch the exception and exit. 'virsh' already printed the error. Signed-off-by: Peter Krempa --- scripts/render_block_graph.py | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/scripts/render_block_graph.py b/scripts/render_block_graph.py index 7a6738410c..e2bb83b60e 100755 --- a/scripts/render_block_graph.py +++ b/scripts/render_block_graph.py @@ -106,7 +106,10 @@ def cmd(self, cmd): ar +=3D ['qemu-monitor-command', self.name, json.dumps(m)] - reply =3D json.loads(subprocess.check_output(ar)) + try: + reply =3D json.loads(subprocess.check_output(ar)) + except subprocess.CalledProcessError: + sys.exit(1) if 'error' in reply: raise QMPError(reply) --=20 2.48.1