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From: Jeff King <peff@peff.net>
To: Jeff Hostetler <git@jeffhostetler.com>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
	Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>,
	git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>
Subject: [PATCH 0/3] the_repository initialization cleanup
Date: Tue, 6 Aug 2019 08:26:02 -0400	[thread overview]
Message-ID: <20190806122601.GA21475@sigill.intra.peff.net> (raw)
In-Reply-To: <7f4257d3-5ae0-3a83-84f1-bee83682fa36@jeffhostetler.com>

On Thu, Aug 01, 2019 at 01:24:17PM -0400, Jeff Hostetler wrote:

> > By the way, I wondered why trace2's existing config reading did not
> > cause us to segfault because of this. It is because it invented the
> > "very early config" function which always ignores some config sources
> > (working around this problem, but also making it weirdly unlike most
> > other config).
> 
> Yes, I added the "very early config" to try to work around some of
> the chicken-n-egg problems.  I can't say that I was completely happy
> with having to do that.  I haven't had time to play with your patch
> suggestion here, but I think it would be fine to do if it will help
> with the original problem.
> 
> In [1] I added code to just start the clock in isolation (rather than
> being part of the trace2_initialize() -- which does all the config
> loading and subsystem initialization).  So it is OK to let the
> trace2_initialize() run a little later.  (Part of the reason for that
> split was to allow git_resolve_executable_dir() to run first, since
> that data was needed to find the location of the system config relative
> to the exe path (sigh).)
> 
> [1] a089724958a trace2: refactor setting process starting time
> 
> So, as you suggested in your previous response, something like
> this would/should be fine.

Thanks, that pointer helped me write the commit message. So here are a
few cleanups that can go on top (of master now, since Dscho's patch
graduated). There's no rush to get these into v2.23.

Note that there _is_ still a funny corner case with the way the original
patch checks the_repository->git_dir, but I don't think it's worth
fixing at this point. I'll send a followup email with more details.

  [1/3]: t1309: use short branch name in includeIf.onbranch test
  [2/3]: common-main: delay trace2 initialization
  [3/3]: config: stop checking whether the_repository is NULL

 common-main.c           | 8 ++++----
 config.c                | 2 +-
 t/t1309-early-config.sh | 7 ++++++-
 3 files changed, 11 insertions(+), 6 deletions(-)

-Peff

  reply	other threads:[~2019-08-06 12:26 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-31 19:53 [PATCH 0/1] Make the includeif:onbranch feature more robust Johannes Schindelin via GitGitGadget
2019-07-31 19:53 ` [PATCH 1/1] config: work around bug with includeif:onbranch and early config Johannes Schindelin via GitGitGadget
2019-07-31 21:37   ` Junio C Hamano
2019-07-31 20:06 ` [PATCH v2 0/1] Make the includeif:onbranch feature more robust Johannes Schindelin via GitGitGadget
2019-07-31 20:06   ` [PATCH v2 1/1] config: work around bug with includeif:onbranch and early config Johannes Schindelin via GitGitGadget
2019-07-31 22:02     ` Jeff King
2019-07-31 22:13       ` Johannes Schindelin
2019-07-31 23:12         ` Jeff King
2019-08-01  0:49           ` Jeff King
2019-08-01 17:24             ` Jeff Hostetler
2019-08-06 12:26               ` Jeff King [this message]
2019-08-06 12:26                 ` [PATCH 1/3] t1309: use short branch name in includeIf.onbranch test Jeff King
2019-08-06 12:27                 ` [PATCH 2/3] common-main: delay trace2 initialization Jeff King
2019-08-06 12:27                 ` [PATCH 3/3] config: stop checking whether the_repository is NULL Jeff King
2019-08-06 12:49                   ` Jeff King
2019-08-08 19:48                     ` Johannes Schindelin
2019-08-06 12:56               ` [PATCH v2 1/1] config: work around bug with includeif:onbranch and early config Jeff King

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