Change build specification files from YAML to JSON?

[Chris Johns]

On 26/4/2023 4:01 am, Sebastian Huber wrote:
> On 25.04.23 13:02, Karel Gardas wrote:
>> On 4/25/23 12:32, Sebastian Huber wrote:
>>> On 25.04.23 12:10, Karel Gardas wrote:
>>>> On 4/25/23 11:03, Sebastian Huber wrote:
>>>>>
>>>>>
>>>>> On 25.04.23 11:00, Karel Gardas wrote:
>>>>>> On 4/25/23 09:35, Sebastian Huber wrote:
>>>>>>> The change from YAML to JSON for the build specification files is just an
>>>>>>> implementation detail of the new build system. For the users of the new
>>>>>>> build system nothing changes.
>>>>>>
>>>>>> Let me ask for clarification. Does this yaml -> json transition include
>>>>>> (or not) files in RTEMS spec directory, e.g. files here:
>>>>>>
>>>>>> https://git.rtems.org/rtems/tree/spec
>>>>>
>>>>> It would affect all YAML files in this directory and no other files.
>>>>
>>>> Oh. Let me ask, what is your future plan with the spec files? Considering
>>>> you would like to move them to JSON, would you also like to provide some DSL
>>>> + compiler which would generates those? Or would you just like to keep JSON
>>>> and have developers editing those?
>>>
>>> I would keep the JSON and have developer editing those.
>>>
>>> An alternative to changing the format could be to use the CSafeLoader of the
>>> system yaml module if it is available. It is not as fast as the JSON loader,
>>> but acceptable (0.65s to 0.2s on my machine for loading the items).
>>
>> Sorry for perhaps silly question, but why do you invest that much energy in
>> optimizing build speed -- by fraction of seconds here? I so far fail so to see
>> driving motivation force hence my question...
> 
> We have a fraction of a second if we use the CSafeLoader and no item cache.
> Currently we use the SafeLoader which results in about 5 seconds. I would like
> to use the build system for more stuff, so this could grow to 10, 15, or more
> seconds which then start to get annoying if you work frequently with it.

Then please outline what all you have in mind and what the long term plan is
then we can consider the overall direction.

Chris