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From: Jeff Hostetler <git@jeffhostetler.com>
To: Junio C Hamano <gitster@pobox.com>,
	Jeff Hostetler via GitGitGadget <gitgitgadget@gmail.com>
Cc: git@vger.kernel.org, Jeff Hostetler <jeffhost@microsoft.com>
Subject: Re: [PATCH 2/3] trace2: trim whitespace in start message in perf target format
Date: Wed, 7 Aug 2019 16:25:24 -0400
Message-ID: <827ed342-1079-8145-ed78-1b955264226e@jeffhostetler.com> (raw)
In-Reply-To: <xmqqef24muxe.fsf@gitster-ct.c.googlers.com>



On 8/1/2019 5:34 PM, Junio C Hamano wrote:
> "Jeff Hostetler via GitGitGadget" <gitgitgadget@gmail.com> writes:
> 
>> From: Jeff Hostetler <jeffhost@microsoft.com>
>>
>> Trim leading/trailing whitespace from the command line
>> printed in the "start" message in the perf target format.
>>
>> We use `sq_quote_argv_pretty()` to format the message
>> and it adds a leading space to the output.  Trim that.
> 
> strbuf_trim() not just drops a single leading space, but removes
> consecutive spaces from both ends.  But the first char after the SP
> comes from the first arg, and it can never be a whitespace (as a
> payload that begins with a whitespace will be quoted, so it will be
> a single quote), and the last char in the buffer would also be
> either a closing single quote (if the last argument ends with a
> whitespace) or a non whitespace "safe" character, so it is safe to
> use strbuf_trim() here.
> 
> I wonder if we want to lose the prepending of SP from
> sq_quote_argv_pretty(), though:

I was wondering about that too, but I didn't want to presume
to know what all of the callers wanted.  And didn't want to
slip in such a change last-minute.

I'll re-roll with a new sq_quote_ function that does not
include the leading whitespace and convert/normalize all
of my trace2/* uses to call it instead.  This eliminates
the Trace2 code from the larger conversation (and is a
little more efficient than the strbuf_trim()).

Jeff

  reply	other threads:[~2019-08-07 20:25 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-31 20:04 [PATCH 0/3] trace2: clean up formatting " Jeff Hostetler via GitGitGadget
2019-07-31 20:04 ` [PATCH 1/3] trace2: cleanup column alignment " Jeff Hostetler via GitGitGadget
2019-07-31 20:04 ` [PATCH 2/3] trace2: trim whitespace in start message " Jeff Hostetler via GitGitGadget
2019-08-01 21:34   ` Junio C Hamano
2019-08-07 20:25     ` Jeff Hostetler [this message]
2019-08-07 20:37       ` Junio C Hamano
2019-07-31 20:04 ` [PATCH 3/3] trace2: trim whitespace in region messages " Jeff Hostetler via GitGitGadget
2019-08-01 22:57 ` [PATCH 0/3] trace2: clean up formatting " Josh Steadmon
2019-08-08 14:18 ` [PATCH v2 0/7] " Jeff Hostetler via GitGitGadget
2019-08-08 14:18   ` [PATCH v2 1/7] trace2: cleanup column alignment " Jeff Hostetler via GitGitGadget
2019-08-08 14:19   ` [PATCH v2 2/7] trace2: trim whitespace in region messages " Jeff Hostetler via GitGitGadget
2019-08-08 14:19   ` [PATCH v2 3/7] trace2: remove dead code in maybe_add_string_va() Jeff Hostetler via GitGitGadget
2019-08-08 14:19   ` [PATCH v2 5/7] quote: add sq_quote_argv_pretty_ltrim Jeff Hostetler via GitGitGadget
2019-08-08 18:05     ` Junio C Hamano
2019-08-08 19:04       ` Jeff Hostetler
2019-08-08 20:01         ` Junio C Hamano
2019-08-08 22:49         ` René Scharfe
2019-08-09 17:13           ` Jeff Hostetler
2019-08-09 18:01             ` René Scharfe
2019-08-08 14:19   ` [PATCH v2 4/7] trace2: trim trailing whitespace in normal format error message Jeff Hostetler via GitGitGadget
2019-08-08 14:19   ` [PATCH v2 6/7] trace2: cleanup whitespace in normal format Jeff Hostetler via GitGitGadget
2019-08-08 14:19   ` [PATCH v2 7/7] trace2: cleanup whitespace in perf format Jeff Hostetler via GitGitGadget
2019-08-09 15:00   ` [PATCH v3 0/7] trace2: clean up formatting in perf target format Jeff Hostetler via GitGitGadget
2019-08-09 15:00     ` [PATCH v3 2/7] trace2: trim whitespace in region messages " Jeff Hostetler via GitGitGadget
2019-08-09 15:00     ` [PATCH v3 1/7] trace2: cleanup column alignment " Jeff Hostetler via GitGitGadget
2019-08-09 15:00     ` [PATCH v3 3/7] trace2: remove dead code in maybe_add_string_va() Jeff Hostetler via GitGitGadget
2019-08-09 15:00     ` [PATCH v3 4/7] trace2: trim trailing whitespace in normal format error message Jeff Hostetler via GitGitGadget
2019-08-09 15:00     ` [PATCH v3 5/7] quote: add sq_append_quote_argv_pretty() Jeff Hostetler via GitGitGadget
2019-08-09 17:54       ` Junio C Hamano
2019-08-09 18:17         ` Jeff Hostetler
2019-08-09 15:00     ` [PATCH v3 6/7] trace2: cleanup whitespace in normal format Jeff Hostetler via GitGitGadget
2019-08-09 15:00     ` [PATCH v3 7/7] trace2: cleanup whitespace in perf format Jeff Hostetler via GitGitGadget
2019-08-09 18:14     ` [PATCH v3 0/7] trace2: clean up formatting in perf target format Junio C Hamano

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