On 7/6/11 1:52 PM, Bruce Korb wrote:
>>> I would not expect "sort -V" and a version test to disagree.
>>
>> The code that coreutils uses for 'sort -V' is part of gnulib - the
>> filevercmp module. That file (filevercmp.c) is pretty stable nowadays,
>> with the last algorithmic change being in April 2009 and no recent
>> complaints about unexpected behavior [...]
>
>> However, I don't see any reason to add extensions to coreutils' test
>> unless we have some agreement that we plan to add the same extension to
>> other places like the bash builtin test at the same time. Since we've
>> already demonstrated that version comparisons are a pretty trivial
>> wrapper around sort, I'm not seeing much justification in favor of
>> bloating test to make version testing builtin.
>
> bash will when coreutils does and coreutils will when bash does.
> OK. I don't really care a too terrible lot, but I do think that
> if folks writing Lustre shell scripts don't get it right, then it
> is an error prone comparison that probably ought to have a well
> architected (easy to use) solution. Perhaps just me?
Again, that's an argument for a solid solution that Lustre and others
can incorporate into their projects, not something that has to go
into coreutils or the shell. It could even be a C program wrapper
around the module from gnulib (though those are notoriously difficult
to separate from the rest of the library).
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/
