split

[Aaron Bentley]

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Daniel Oberhoff wrote:
>> Aaron Bentley <aaron at aaronbentley.com> writes:
>>> Daniel Oberhoff wrote:
>>>> Hmm, so there is no way to modify history?
>>>
>>> Not in a decentralized VCS.  decentralized systems like this must be
>>> write-once at the logical level, or else you have an inconsistent
>>> system.
> 
> Hmm. What I want would be write once. I would simply like to be able to
> check out only a subtree, and not the whole she-bang.

Right, and the fact that it's write-once means that you're no longer
talking about modifying history.

But Bazaar represents a source tree as a single, indivisible object,
both in its storage and in its data model.  What you want would require
a different storage format and data model in which the representation of
a subdirectory is divorced from the representation of its parent
directory.  This would require metadata about merges to be per-directory
(or a finer granularity) rather than per-tree, as they currently are.

Aaron
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