From: Jeff King <peff@peff.net>
To: Josh Steadmon <steadmon@google.com>
Cc: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
git@vger.kernel.org, git@jeffhostetler.com
Subject: Re: [RFC PATCH 3/3] trace2: add a schema validator for trace2 events
Date: Wed, 12 Jun 2019 15:18:19 -0400 [thread overview]
Message-ID: <20190612191818.GB14949@sigill.intra.peff.net> (raw)
In-Reply-To: <20190612162341.GA42943@google.com>
On Wed, Jun 12, 2019 at 09:23:41AM -0700, Josh Steadmon wrote:
> The problem with the existing validators is that they expect each file to be a
> complete JSON entity, whereas the trace output is one object per line. You can
> of course loop over the lines in a shell script, but in my testing this approach
> took multiple hours on the full test suite trace output, vs. 15 minutes for the
> implementation in this patch.
It seems like it should be easy to turn a sequence of entities into a
single entity, with something like:
echo '['
sed 's/$/,/' <one-per-line
echo ']'
You could even turn a sequence of files into a single entity (which
might be even faster to validate, since it would be one invocation for
the entire test suite) with something like:
echo '{'
for fn in $FILES; do
echo "\"$fn\": "
cat $fn
echo ","
done
echo '}'
though I suspect the resulting error messages might not be as good.
Obviously neither of those is particularly robust if the individual JSON
is not well-formed. But then, if we are mostly interested in testing
whether it's well-formed and expect it to be in the normal case, that
might be a good optimization.
I also wouldn't be surprised if "jq" could do this in a more robust way.
-Peff
next prev parent reply other threads:[~2019-06-12 19:18 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-11 23:31 [RFC PATCH 0/3] Add a JSON Schema for trace2 events Josh Steadmon
2019-06-11 23:31 ` [RFC PATCH 1/3] trace2: correct trace2 field name documentation Josh Steadmon
2019-06-12 18:00 ` Junio C Hamano
2019-06-12 18:14 ` Josh Steadmon
2019-06-14 15:53 ` Jeff Hostetler
2019-06-11 23:31 ` [RFC PATCH 2/3] trace2: Add a JSON schema for trace2 events Josh Steadmon
2019-06-14 15:59 ` Jeff Hostetler
2019-06-20 17:26 ` Josh Steadmon
2019-06-11 23:31 ` [RFC PATCH 3/3] trace2: add a schema validator " Josh Steadmon
2019-06-12 13:28 ` Ævar Arnfjörð Bjarmason
2019-06-12 16:23 ` Josh Steadmon
2019-06-12 19:18 ` Jeff King [this message]
2019-06-20 18:15 ` Josh Steadmon
2019-06-21 11:53 ` Jakub Narebski
2019-06-27 13:57 ` Jeff Hostetler
2019-07-09 23:05 ` [RFC PATCH v2 0/3] Add a JSON Schema " Josh Steadmon
2019-07-09 23:05 ` [RFC PATCH v2 1/3] trace2: Add a JSON schema " Josh Steadmon
2019-07-10 18:32 ` Jakub Narebski
2019-07-24 22:37 ` Josh Steadmon
2019-07-09 23:05 ` [RFC PATCH v2 2/3] trace2: add a schema validator " Josh Steadmon
2019-07-11 13:35 ` Jakub Narebski
2019-07-24 22:47 ` Josh Steadmon
2019-07-09 23:05 ` [RFC PATCH v2 3/3] ci: run trace2 schema validation in the CI suite Josh Steadmon
2019-07-24 23:06 ` [PATCH v3 0/3] Add a JSON Schema for trace2 events Josh Steadmon
2019-07-24 23:06 ` [PATCH v3 1/3] trace2: Add a JSON schema " Josh Steadmon
2019-07-25 16:55 ` Junio C Hamano
2019-07-24 23:06 ` [PATCH v3 2/3] trace2: add a schema validator " Josh Steadmon
2019-07-24 23:06 ` [PATCH v3 3/3] ci: run trace2 schema validation in the CI suite Josh Steadmon
2019-07-25 11:18 ` [PATCH v3 0/3] Add a JSON Schema for trace2 events SZEDER Gábor
2019-07-25 16:14 ` Junio C Hamano
2019-07-26 21:16 ` Josh Steadmon
2019-07-25 23:42 ` SZEDER Gábor
2019-07-26 12:12 ` Johannes Schindelin
2019-07-26 13:53 ` SZEDER Gábor
2019-07-31 11:00 ` Johannes Schindelin
2019-07-26 22:03 ` Josh Steadmon
2019-08-01 18:08 ` Josh Steadmon
2019-08-02 1:52 ` Jonathan Nieder
2019-08-02 11:56 ` Johannes Schindelin
2019-08-02 16:59 ` Jonathan Nieder
2019-08-02 19:38 ` SZEDER Gábor
2019-08-02 23:25 ` Jonathan Nieder
2019-08-03 21:25 ` Johannes Schindelin
2019-08-02 19:16 ` SZEDER Gábor
2019-08-02 23:06 ` Jonathan Nieder
2019-08-03 7:35 ` SZEDER Gábor
2019-08-03 7:40 ` SZEDER Gábor
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