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Re: Minimum Perl version?

From
Andreas Ericsson <ae@op5.se>
Date
Sep 26, 2010, 10:22 UTC
Message-ID
<4C9F1EDF.1030104@op5.se>
In-Reply-To
<AANLkTinQQxsbUHiKLaCJ0b5-dcvdE4JhLMVWOV5P2bkh@mail.gmail.com>
On 09/25/2010 12:39 AM, Ævar Arnfjörð Bjarmason wrote:
Show 30 quoted lines
> On Fri, Sep 24, 2010 at 20:40, Tait<git.git@t41t.com>  wrote:
>>>> What is the minimum Perl version git expects to support?
>>>>
>>>> I ask, because f922df8... seems to have introduced a open() syntax that
>>>> is not compatible with some older Perl versions.
>>>
>>> We generally support 5.6 or above, but 5.8 or above for some other
>>> programs.
>>
>> I am having to use a system with 5.6.1 to do cvsimport and cvsexportcommit,
>> and interactive add. I haven't tried sendmail or other functions, yet. This
>> system was previously using git 1.6.5.something, and did not have these
>> problems as of that release, but now that I'm building git 1.7.3, they
>> have appeared.
> 
> Maybe marking everything as needing 5.8 or later isn't the right thing
> to do. E.g. the git-*cvs*.perl code mostly isn't touched, but
> cvsexportcommit does use Git.pm, so that would also need to be pinned
> at 5.6 if cvsexportcommit was.
> 
>> Perl 5.6.1 doesn't support the list open syntax, so one must replace
>> open(my $fh, '-|', @list) with open(my $fh, '-|'), and then exec(@list).
>> I'm working up a patch set to fill my own needs on this system, but based
>> on the subsequent discussion about setting 5.8 as the minimum, it sounds
>> like it's not worth submitting.
> 
> The issue isn't that we don't have a workaround for individual bits
> like open(my $fh, '-|', @list), but rather that keeping all of the
> code 5.6 compatible is a burden on ongoing maintenance for a very
> marginal benefit.

If someone steps up and makes various snippets of code 5.6 compatible while not introducing any penalties for 5.8 users, I see no reason to drop those patches.

Tait, submit your patches and I'm sure they'll be reviewed the same as everything else. If they make the code a lot harder to understand or a lot slower, I'm sure they'll be dropped. If they don't, I'm reasonably certain Junio will take them on. I barely speak Perl though, so reviewing them will have to be done by someone else.

-- 
Andreas Ericsson                   andreas.ericsson@op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231

Considering the successes of the wars on alcohol, poverty, drugs and
terror, I think we should give some serious thought to declaring war
on peace.
Previous: Ævar Arnfjörð BjarmasonNext: Tor Arntsen
Message 5 of 10 in “Minimum Perl version?”
  1. TaitSep 24, 2010
  2. Ævar Arnfjörð BjarmasonSep 24, 2010
  3. TaitSep 24, 2010
  4. Ævar Arnfjörð BjarmasonSep 24, 2010
  5. Andreas EricssonSep 26, 2010
  6. Tor ArntsenSep 24, 2010
  7. Ævar Arnfjörð BjarmasonSep 24, 2010
  8. Tor ArntsenSep 24, 2010
  9. Alex RiesenSep 24, 2010
  10. Tor ArntsenSep 24, 2010

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