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Re: taking temperature on externals

From: Greg Stein <gstein_at_gmail.com>
Date: Mon, 6 Apr 2009 18:46:07 +0200

On Mon, Apr 6, 2009 at 18:32, C. Michael Pilato <cmpilato_at_collab.net> wrote:
> Greg Stein wrote:
>> On Mon, Apr 6, 2009 at 18:07, C. Michael Pilato <cmpilato_at_collab.net> wrote:
>>> Greg Stein wrote:
>>>> On Sat, Apr 4, 2009 at 23:40, Bert Huijben <rhuijben_at_sharpsvn.net> wrote:
>>>>> ...
>>>>> WC-NG should make it much easier to fix these scenarios as a working copy and all its externals will all be handled in the same database.
>>>> Yup. I'm going to be doing a full revamp of the "what to commit?"
>>>> logic in wc-ng. Except for needing to maintain cmdline compatibility,
>>>> I see no reason that we cannot do multiple-repository commits, and to
>>>> commit properly/atomically across switched/external boundaries of
>>>> items from the same repos.
>>> The client code already theoretically (and perhaps only partially) supports
>>> this concept.  I rewrote it long ago to do commits based on item URL (as
>>> opposed to on-disk location), including the ability to sort things into
>>> different per-repository buckets.
>>
>> There is a hash table of repositories, with the value listing each
>> item for that repository. However, the hash is keyed by a constant
>> string, and only that one entry is ever present. Some of the code
>> knows about the (1-item) hash table, and other parts of the code have
>> no idea what is going on.
>>
>> There are about four different representations of "what to commit"
>> that are built during the commit process. Mapped from one to the other
>> to the other. Each with its own slightly different semantics and data
>> fields.
>>
>> Ugh.
>
> Yes, because we don't (and never did) allow working copies to contain items
> from various repositories, I implemented the single-static-key mechanism as
> a placeholder for more full support later.  But unless something has changed
> since I last looked, I think you exaggerate the rest -- the "committables"
> are the final word on what gets committed.

It *has* changed. That's my point. New layers have been added at
various point. That "committables" stuff is thrown out and another
mechanism is used for the post-processing. And then *that* is filtered
yet again to optimize entries writing. And ...

No exaggeration.

Cheers,
-g

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Received on 2009-04-06 18:46:26 CEST

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