From: Junio C Hamano <gitster@pobox.com>
To: Jonathan Nieder <jrnieder@gmail.com>
Cc: "Johannes Sixt" <j6t@kdbg.org>, "Ben Walton" <bdwalton@gmail.com>,
git@vger.kernel.org, "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: Re: [PATCH] Avoid difference in tr semantics between System V and BSD
Date: Mon, 28 Oct 2013 12:08:39 -0700 [thread overview]
Message-ID: <xmqqk3gxfc20.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: <20131028182718.GA4242@google.com> (Jonathan Nieder's message of "Mon, 28 Oct 2013 11:27:18 -0700")
Jonathan Nieder <jrnieder@gmail.com> writes:
> Johannes Sixt wrote:
>
>> In other tests, we check for prerequisite PERL, i.e., we are prepared
>> that perl is not available. Shouldn't we do that here, too?
>
> I think the tests assume there's a perl present even when the PERL
> prereq isn't present already. E.g.:
>
> nul_to_q () {
> "$PERL_PATH" -pe 'y/\000/Q/'
> }
>
> So in practice the PERL prereq just means "NO_PERL wasn't set", or
> in other words, "commands that use perl work". Maybe something
> like the following would help?
>
> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
>
> diff --git i/t/README w/t/README
> index 2167125..54cd064 100644
> --- i/t/README
> +++ w/t/README
> @@ -629,11 +629,20 @@ See the prereq argument to the test_* functions in the "Test harness
> library" section above and the "test_have_prereq" function for how to
> use these, and "test_set_prereq" for how to define your own.
>
> - - PERL & PYTHON
> + - PYTHON
>
> - Git wasn't compiled with NO_PERL=YesPlease or
> - NO_PYTHON=YesPlease. Wrap any tests that need Perl or Python in
> - these.
> + Git wasn't compiled with NO_PYTHON=YesPlease. Wrap any tests that
> + need Python with this.
> +
> + - PERL
> +
> + Git wasn't compiled with NO_PERL=YesPlease.
> +
> + Even without the PERL prerequisite, tests can assume there is a
> + usable perl interpreter at $PERL_PATH, though it need not be
> + particularly modern.
> +
> + Wrap tests for commands implemented in Perl with this.
Sounds like a sensible thing to address, but I first parsed it as
Wrap (tests for (commands implemented in Perl)) with this.
while I think the readers are expected to parse it as
Wrap ((tests for commands) implemented in Perl) with this.
next prev parent reply other threads:[~2013-10-28 19:08 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-18 21:17 [PATCH] Avoid broken Solaris tr Ben Walton
2013-06-18 22:31 ` Junio C Hamano
2013-10-28 9:02 ` Ben Walton
2013-10-28 9:13 ` [PATCH] Avoid difference in tr semantics between System V and BSD Ben Walton
2013-10-28 18:07 ` Johannes Sixt
2013-10-28 18:27 ` Jonathan Nieder
2013-10-28 19:08 ` Junio C Hamano [this message]
2013-10-28 19:22 ` [PATCH] t/README: tests can use perl even with NO_PERL Jonathan Nieder
2013-10-28 19:46 ` Johannes Sixt
2013-10-28 19:54 ` Jeff King
2013-10-28 21:04 ` Jonathan Nieder
2013-10-28 21:43 ` Ben Walton
2013-10-29 1:18 ` [RFC/PATCH 0/3] perl Jeff King
2013-10-29 1:19 ` [PATCH 1/3] use @@PERL@@ in built scripts Jeff King
2013-10-29 19:41 ` Junio C Hamano
2013-10-29 1:22 ` [PATCH 2/3] t: provide a perl() function which uses $PERL_PATH Jeff King
2013-10-29 1:23 ` [PATCH 3/3] t: use perl instead of "$PERL_PATH" where applicable Jeff King
2013-10-28 21:04 ` [PATCH] Avoid difference in tr semantics between System V and BSD Ben Walton
2013-10-28 21:12 ` Ben Walton
2013-10-28 21:30 ` Junio C Hamano
2013-10-28 21:40 ` Ben Walton
2013-10-28 21:43 ` Ben Walton
2013-10-28 21:43 ` Ben Walton
2013-10-30 17:39 ` Junio C Hamano
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