Developing hob/bitbake using PyDev

Developing hob/bitbake using PyDev

[Iorga, Cristian]

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Hello,

Ha anyone use Pydev in order to develop hob or bitbake?
What I am basically interested in is:

1.      Doing remote debugging of hob.

2.      A feature similar to a "Fix and Continue" (change the code, and re-run it without re-running the entire hob from the beginning)

Now. I did a small investigation with help from Valentin Popa and Bogdan Marinescu.
Remote debugging seems possible, but we did not set it up (yet).
"Fix and Continue" we don't know if it exists in Python world, because of the way Pyhon (interpreter + base language works).
I.e.: Python: from module import spam
spam will be initialized after this one.
How Python will handle a reload or something similar in this case?

If anyone have any insights into this issues, please help me.

P.S.: Doing remote debugging of hob seems to need changes in hob/bitbake sources, which I guess would not be acceptable to be integrated into main branch, isn't it?

Thanks,
Cristian Iorga

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Re: Developing hob/bitbake using PyDev

[Richard Purdie]

On Tue, 2012-08-07 at 07:48 +0000, Iorga, Cristian wrote:
> Remote debugging seems possible, but we did not set it up (yet).
>
> “Fix and Continue” we don’t know if it exists in Python world, because
> of the way Pyhon (interpreter + base language works).
> 
> I.e.: Python: from module import spam
>
> spam will be initialized after this one.
>
> How Python will handle a reload or something similar in this case?

Python can reload modules but you'd have to deactive anything using them
to be able to reload so you'd have to reset all the state. I therefore
suspect this aspect would be hard.

> If anyone have any insights into this issues, please help me.
>  
> P.S.: Doing remote debugging of hob seems to need changes in
> hob/bitbake sources, which I guess would not be acceptable to be
> integrated into main branch, isn’t it?

I'd not rule them out, particularly if how to use them was well
documented. We'd need something well thought out though for it to be
merged. It really depends on the kinds of changes needed and how
invasive they were.

Cheers,

Richard

Re: [poky] Developing hob/bitbake using PyDev

[Richard Purdie]

On Tue, 2012-08-07 at 07:48 +0000, Iorga, Cristian wrote:
> Remote debugging seems possible, but we did not set it up (yet).
>
> “Fix and Continue” we don’t know if it exists in Python world, because
> of the way Pyhon (interpreter + base language works).
> 
> I.e.: Python: from module import spam
>
> spam will be initialized after this one.
>
> How Python will handle a reload or something similar in this case?

Python can reload modules but you'd have to deactive anything using them
to be able to reload so you'd have to reset all the state. I therefore
suspect this aspect would be hard.

> If anyone have any insights into this issues, please help me.
>  
> P.S.: Doing remote debugging of hob seems to need changes in
> hob/bitbake sources, which I guess would not be acceptable to be
> integrated into main branch, isn’t it?

I'd not rule them out, particularly if how to use them was well
documented. We'd need something well thought out though for it to be
merged. It really depends on the kinds of changes needed and how
invasive they were.

Cheers,

Richard