Re: [netmod] Proposal to enhance the YANG tree output

Joe Clarke <jclarke@cisco.com> Thu, 14 September 2017 18:03 UTC

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To: Martin Bjorklund <mbj@tail-f.com>, andy@yumaworks.com
Cc: netmod@ietf.org
References: <9d84d068-29ba-8e89-394f-b7f6a5272adc@cisco.com> <CABCOCHQZ4zJ3p_4oB1Pu=1H60btzrccqTx7rUtsRsF0reXgrYw@mail.gmail.com> <20170914.195037.593298963545596882.mbj@tail-f.com>
From: Joe Clarke <jclarke@cisco.com>
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Date: Thu, 14 Sep 2017 14:03:18 -0400
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Subject: Re: [netmod] Proposal to enhance the YANG tree output
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On 9/14/17 13:50, Martin Bjorklund wrote:
> Andy Bierman <andy@yumaworks.com> wrote:
>> Hi,
>>
>>
>> Actually I liked the early pyang output that was concise and easy to
>> remember.
>> The current format gets very cluttered and there are too many little symbols
>> to remember them all.
> 
> I agree with Andy.  I also did some experiments with printing
> enumerations, and they work ok for small enums.  But once you have
> more than a handful they do tend to clutter the output.  Even worse so
> for trees that go into RFCs (where lines need to be < 70 characters).

What about protecting this with an optional parameter?  I certainly
appreciate the output could be large, but I think it does have its uses
sometimes.

Joe

> 
> Lada is sometimes using a format with even less information, where he
> has removed all type information, focusing more on the structure.
> 
> 
> /martin
> 
> 
> 
>>
>>
>> Andy
>>
>>
>> On Thu, Sep 14, 2017 at 8:33 AM, Joe Clarke <jclarke@cisco.com> wrote:
>>
>>> I've been hacking on pyang, and I changed tree.py to add the enum values
>>> for enumeration types and identiyref bases for identityref types.  Here
>>> is an example:
>>>
>>> module: yang-catalog
>>>     +--rw catalog
>>>        +--rw modules
>>>        |  +--rw module* [name revision organization]
>>>        |     +--rw name                     yang:yang-identifier
>>>        |     +--rw revision                 union
>>>        |     +--rw organization             string
>>>        |     +--rw ietf
>>>        |     |  +--rw ietf-wg?   string
>>>        |     +--rw namespace                inet:uri
>>>        |     +--rw schema?                  inet:uri
>>>        |     +--rw generated-from?          enumeration [mib, code,
>>> not-applicable, native]
>>>        |     +--rw maturity-level?          enumeration [ratified,
>>> adopted, initial, not-applicable]
>>> ...
>>>                                +--rw protocols
>>>                                |  +--rw protocol* [name]
>>>                                |     +--rw name
>>> identityref -> protocol
>>> ...
>>>
>>> My questions are:
>>>
>>> 1. Is this useful?
>>>
>>> 2. If so, can this be added to pyang (happy to submit a PR) and
>>> draft-ietf-netmod-yang-tree-diagrams?
>>>
>>> 3. What changes to the output format would you recommend?
>>>
>>> Thanks.
>>>
>>> Joe
>>>
>>> _______________________________________________
>>> netmod mailing list
>>> netmod@ietf.org
>>> https://www.ietf.org/mailman/listinfo/netmod
>>>