From: Eitan Adler <lists@eitanadler.com>
To: Jun T <takimoto-j@kba.biglobe.ne.jp>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: Teach 'tar' to support more file types
Date: Thu, 5 Apr 2018 23:53:02 -0700 [thread overview]
Message-ID: <CAF6rxgk+joSqoogqD=eWrjYTpOok+A_qSRFNOrZu58-crEfEMg@mail.gmail.com> (raw)
In-Reply-To: <7060C6C4-6721-4878-B8BC-224346633816@kba.biglobe.ne.jp>
On 4 April 2018 at 20:55, Jun T <takimoto-j@kba.biglobe.ne.jp> wrote:
>
>> 2018/04/02 7:10, Eitan Adler <lists@eitanadler.com> wrote:
>>
>> In libarchive based (BSD) tar implementations, all file types can be
>> uncompressed, even without a filetype letter. In GNU tar's case
>> "recent" versions (for over 10 years) can do the same.
>> As such, remove the check for tar type and just assume it works.
>
> We can't assume it works since there are many systems where tar requires
> explicit compression flags. Even on some BSDs (OpenBSD and NetBSD) tar
> is not based on libarchive.
>
> If the tar command is based on libarchive, we can detect it by using
> 'tar --version'.
This patch LGTM.
--
Eitan Adler
prev parent reply other threads:[~2018-04-06 6:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-01 22:10 Eitan Adler
2018-04-05 3:55 ` Jun T
2018-04-05 5:41 ` Baptiste Daroussin
2018-04-06 6:53 ` Eitan Adler [this message]
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