Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 20 May 2014 22:02:20 -0700
From:      Alfred Perlstein <bright@mu.org>
To:        Chris H <bsd-lists@bsdforge.com>
Cc:        freebsd-hackers@freebsd.org, Erik Cederstrand <erik+lists@cederstrand.dk>
Subject:   Re: [GSoC] Machine readable output from userland utilities
Message-ID:  <537C335C.3060105@mu.org>
In-Reply-To: <f17ef374463361cc4d42009f7b418f67.authenticated@ultimatedns.net>
References:  <49E9736E-AD14-4647-8B15-30603D01360C@mail.bg> <91FE2526-F21C-42AB-BECB-058DBA975A9E@cederstrand.dk> <537C2993.1060206@mu.org> <f17ef374463361cc4d42009f7b418f67.authenticated@ultimatedns.net>

next in thread | previous in thread | raw e-mail | index | archive | help

On 5/20/14, 9:58 PM, Chris H wrote:
>>
>> Basically the idea would be to write a simple tool that is able to
>> extract using an xpath or json selector.
>>
>> Example (very rough code):
>>
>>    ifconfig --output xml | selector --format xml --path /name --path
>> /name/etheraddr  | \
>>       while read name ether ; do
>>         echo "Interface $name has hardware address $ether" ;
>>       done
>>
>> In all seriousness though, the real target is people writing higher
>> level languages (than shell) on top of FreeBSD.  Perhaps python or ruby
>> spawning a utility and then that utility making the output easy to read.
>>
>> One thing to note is that the output should not just be formatted but
>> normalized as well.  The fact that "uptime" can emit 15 different
>> formats for the uptime string is terrible for people coding on top of
>> the base utils, the json/xml/other output should be decided on some form
>> of normalized data likely in seconds + microseconds or something, but
>> anything truly machine readable is better than the current output when
>> popen'd by a webapp.
>>
>> -Alfred
> Greetings, all.
> I may be getting into this thread a bit late in the game. But if I
> understand the gist of this correctly; isn't all this pretty much what
> Perl was intended for?
>
> All the best.

I can't tell if you're late or early since the connection is breaking 
up, but from what I can make out you're stuck in 1997.

-Alfred




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?537C335C.3060105>