From: Jeff King <peff@peff.net>
To: Taylor Blau <me@ttaylorr.com>
Cc: Thomas Guyot-Sionnest <tguyot@gmail.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: Fri, 18 Sep 2020 14:05:08 -0400 [thread overview]
Message-ID: <20200918180508.GB186717@coredump.intra.peff.net> (raw)
In-Reply-To: <20200918175836.GA149847@nand.local>
On Fri, Sep 18, 2020 at 01:58:36PM -0400, Taylor Blau wrote:
> > *untested*:
> >
> > if (!lstat(name, &st)) {
> > if (!S_ISLNK(st.st_mode))
> > return(0);
> > if (!stat(name, &st)) {
> > if (!S_ISFIFO(st.st_mode))
> > return(0);
>
> I still don't think I quite understand why FIFOs aren't allowed...
It's the other way around. Non-fifos return "0" from this "is it a pipe"
function.
I think it is to prevent a false positive with:
rm bar
ln -s foo bar
git diff --no-index foo something-else
We'd still want to treat "foo" as a symlink there. I.e., the heuristic
for guessing it's a process substitution pipe is:
- it's a symlink that doesn't point anywhere
- it's also a fifo
-Peff
next prev parent reply other threads:[~2020-09-18 18:05 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
2020-09-21 20:14 ` Junio C Hamano
2020-09-18 17:58 ` Taylor Blau
2020-09-18 18:05 ` Jeff King [this message]
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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