On Wed, Nov 06, 2013 at 09:04:15PM -0500, Brad Smith wrote:
> On 06/11/13 8:54 PM, Juan Francisco Cantero Hurtado wrote:
> >On Wed, Nov 06, 2013 at 07:15:24PM -0500, Brad Smith wrote:
> >>On 05/11/13 7:44 PM, Juan Francisco Cantero Hurtado wrote:
> >>>On Tue, Nov 05, 2013 at 10:41:35AM +0000, Stuart Henderson wrote:
> >>>>On 2013/11/05 03:04, Juan Francisco Cantero Hurtado wrote:
> >>>>>The patch adds lzip support to the ports framework. I tested
> >>>>>"EXTRACT_SUFX = .tar.lz" with some ports and everything works without
> >>>>>problems.
> >>>>
> >>>>In the past we've held off on diffs like this (e.g. for xz) until
> >>>>it was actually used by a number of ports, I haven't really run into
> >>>>it in the wild, do you know of any software distributed using lzip?
> >>>
> >>>Yes, some GNU and Savannah projects:
> >>>rsync --list-only -r rsync://ftp.gnu.org/gnu | grep '\.lz$'
> >>>rsync --list-only -r rsync://dl.sv.nongnu.org:/releases | grep '\.lz$'
> >>>
> >>>Graphicsmagick and imagemagick also have tarballs compressed with lzip.
> >>
> >>GraphicsMagick and ImageMagick provide XY compressed archives.
> >
> >They provide tarballs compressed with gz, bzip2, xz and lzip.
> >ImageMagick also use 7zip and zip. Basically they use everything :)
> >
> >>The GNU project has standardized on using XZ.
> >
> >Do you have any document or link about that?. IIRC, GNU doesn't have
> >preference by any file compressor, except obviously gzip.
> >
> >https://www.gnu.org/prep/ftp.html :
> >"Various compression formats are used on the server: .gz is gzip; .bz2
> >is bzip2; .xz is xz; .lz is lzip."
> >
> >Automake, GNU tar and texinfo support the lzip format.
> >
> ><rant>I guess the xz format is more used because this is the sucessor of
> >the original lzma-utils (that was an horrible file format despite of the
> >good compression algorithm).</rant>
> >
> >>Is there anything else?
> >
> >I've not found more projects using lzip. Anyway, the commits are done.
> 
> The point wasn't whether projects provide more than one format or whether
> there is overlap between lzip/xz. It's to point out projects that provide
> say gzip and lzip archivers or only lzip archives. I don't have a problem
> adding more formats, but there should be real purpose for doing so and I
> haven't seen that so far.

I've not seen any project releasing only lzipped tarballs except zutils.

My initial intention adding support for lzip was to have an alternative
to xz 100% compatible with VAX for the patches and tarballs created and
hosted directly by the OpenBSD porters in their servers. That is the
reason for the adittional change to PATCH_CASES. The support for
projects releasing tarballs compressed with lzip is just a side effect.

Cheers.

-- 
Juan Francisco Cantero Hurtado http://juanfra.info

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