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From: Jeff King <peff@peff.net>
To: Thomas Guyot <tguyot@gmail.com>
Cc: Junio C Hamano <gitster@pobox.com>,
	"brian m. carlson" <sandals@crustytoothpaste.net>,
	Taylor Blau <me@ttaylorr.com>,
	git@vger.kernel.org, Thomas Guyot-Sionnest <dermoth@aei.ca>
Subject: Re: [PATCH 2/2] Allow passing pipes for input pipes to diff --no-index
Date: Mon, 21 Sep 2020 15:31:20 -0400	[thread overview]
Message-ID: <20200921193120.GB2399334@coredump.intra.peff.net> (raw)
In-Reply-To: <f338b63f-fd89-095c-b036-8d548fd2470c@gmail.com>

On Sun, Sep 20, 2020 at 08:54:53AM -0400, Thomas Guyot wrote:

> Considering the issue with MacOS I'm starting to think the best solution
> is to not use any heuristic and read passed-in files directly. That
> said, I don't think it makes much change either way (if I resurrect
> Brian's patch is will probably end up being a hybrid between the two as
> both read the pipe at the same place and my approach was simpler further
> down).
> 
> I'm not sure which way I prefer to start first - will you accept a patch
> that reads passed in files as-is if I I start with this one?

I think the ideal is:

  - implement a command-line option to read the content of paths on the
    command-line literally (i.e., reading from pipes, dereferencing
    symlinks, etc)

  - make sure we have the inverse option (which you should get for free
    in step 1 if you use parse_options)

  - flip the default to do literal reads

We'd sometimes wait several versions before that last step to give
people time to adjust scripts, etc. But in this case, I suspect it would
be OK to just flip it immediately. We don't consider "git diff" itself
part of the stable plumbing, and the --no-index part of it I would
consider even less stable. And AFAICT most people consider the current
behavior a bug because it doesn't behave like other diff tools.

-Peff

  reply	other threads:[~2020-09-21 19:31 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-18 11:32 Allow passing pipes to diff --no-index + bugfix Thomas Guyot-Sionnest
2020-09-18 11:32 ` [PATCH 1/2] diff: Fix modified lines stats with --stat and --numstat Thomas Guyot-Sionnest
2020-09-18 14:46   ` Taylor Blau
2020-09-18 15:10     ` Thomas Guyot-Sionnest
2020-09-18 17:37       ` Jeff King
2020-09-18 18:00         ` Thomas Guyot-Sionnest
2020-09-20  4:53       ` Thomas Guyot
2020-09-18 17:27   ` Jeff King
2020-09-18 17:52     ` Thomas Guyot-Sionnest
2020-09-18 18:06       ` Junio C Hamano
2020-09-23 19:16         ` Johannes Schindelin
2020-09-23 19:23           ` Junio C Hamano
2020-09-23 20:44             ` Johannes Schindelin
2020-09-24  4:49               ` Thomas Guyot
2020-09-24  5:24                 ` [PATCH v3] " Thomas Guyot-Sionnest
2020-09-24  7:41                   ` [PATCH v4] " Thomas Guyot-Sionnest
2020-09-24  6:40                 ` [PATCH 1/2] " Junio C Hamano
2020-09-24  7:13                   ` Thomas Guyot
2020-09-24 17:19                     ` Junio C Hamano
2020-09-24 17:38                       ` Junio C Hamano
2020-09-23 15:05     ` Johannes Schindelin
2020-09-20 13:09   ` [PATCH v2] " Thomas Guyot-Sionnest
2020-09-20 15:39     ` Taylor Blau
2020-09-20 16:38       ` Thomas Guyot
2020-09-20 19:11       ` Junio C Hamano
2020-09-20 20:08         ` Junio C Hamano
2020-09-20 20:36         ` Junio C Hamano
2020-09-20 22:15           ` Junio C Hamano
2020-09-21 19:26         ` Jeff King
2020-09-21 21:51           ` Junio C Hamano
2020-09-21 22:20             ` Jeff King
2020-09-21 22:37               ` Junio C Hamano
2020-09-18 11:32 ` [PATCH 2/2] Allow passing pipes for input pipes to diff --no-index Thomas Guyot-Sionnest
2020-09-18 14:36   ` Taylor Blau
2020-09-18 16:34     ` Thomas Guyot-Sionnest
2020-09-18 17:19       ` Jeff King
2020-09-18 17:21         ` Jeff King
2020-09-18 17:39         ` Thomas Guyot-Sionnest
2020-09-18 17:48         ` Junio C Hamano
2020-09-18 18:02           ` Jeff King
2020-09-20 12:54             ` Thomas Guyot
2020-09-21 19:31               ` Jeff King [this message]
2020-09-21 20:14                 ` Junio C Hamano
2020-09-18 17:58       ` Taylor Blau
2020-09-18 18:05         ` Jeff King
2020-09-18 17:20     ` Jeff King
2020-09-18 18:00       ` Taylor Blau
2020-09-18 21:56   ` brian m. carlson
2020-09-18 17:51 ` Allow passing pipes to diff --no-index + bugfix Junio C Hamano
2020-09-18 18:24   ` Thomas Guyot-Sionnest

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