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From: Kamil Dudka <kdudka@redhat.com>
To: Bernhard Voelker <mail@bernhard-voelker.de>
Cc: bug-gnulib <bug-gnulib@gnu.org>
Subject: Re: tests: dis/allow '.' in PATH?
Date: Wed, 24 Nov 2021 08:24:58 +0100	[thread overview]
Message-ID: <5769878.lOV4Wx5bFT@nbkamil> (raw)
In-Reply-To: <7efa54e6-e6dc-822b-8eaa-18177a52b0a1@bernhard-voelker.de>

On Tuesday, November 23, 2021 11:19:22 PM CET Bernhard Voelker wrote:
> GNU findutils got a bug report for a failing test in the testsuite [1].
> It turned out that the calling environment had the current directory '.'
> in PATH.  This triggered a warning in `find -execdir ...` and therefore
> made some tests fail.
> 
> [1] https://lists.gnu.org/r/bug-findutils/2021-11/msg00004.html
> 
> Of course, the findutils tests could (and probably will) remove '.' from
> PATH, but I wonder if this should or should not be done for other packages
> via a change in 'tests/init.sh' as well?
> If a certain test needs '.' in the PATH, it will have to add it anyway.
> 
> Any comments?

Note that having an "empty item" in PATH will have the same effect as
having '.' in PATH, according to POSIX [1]:

    A zero-length prefix is a legacy feature that indicates the current
    working directory.  It appears as two adjacent <colon> characters
    ( "::" ), as an initial <colon> preceding the rest of the list, or
    as a trailing <colon> following the rest of the list.

Kamil

[1] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_03




  parent reply	other threads:[~2021-11-24  7:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-23 22:19 tests: dis/allow '.' in PATH? Bernhard Voelker
2021-11-24  0:10 ` Paul Eggert
2021-11-24  7:24 ` Kamil Dudka [this message]
2021-11-24 23:03   ` Bernhard Voelker
2021-11-24 23:54     ` Paul Eggert
2021-11-26  0:10       ` Bernhard Voelker

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