revision_trees with no parent

[John Arbash Meinel]

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Sandy Dunlop wrote:
> Hi,
> 
> In my code I call branch.repository.revision_trees([parentid,revid])
> and then
> delta = self.rev_tree.changes_from(self.parent_tree)
> to get to get information about what's changed between two revisions.
> 
> This doesn't work if revid is the first revision (1st commit after the
> branch has been inited). Can someone point me in the right direction
> of what I should be doing to get the list of files that were added in
> this revision?
> 
> Thanks,
> Sandy
> 
> 

empty_tree = branch.repository.revision_tree(NULL_REVISION)

It is a bit of a quirk, but "revision_trees()" doesn't allow you to pass
NULL_REVISION. But

self.rev_tree.changes_from(empty_tree)

Should do what you want.

John
=:->

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