Rethinking last-revision

[Aaron Bentley]

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Olaf Conradi wrote:
> Can there be a way to query the format of a metadir?
> Might be useful in bzr info along with the other formats.

That's certainly a reasonable request, if that's not already supplied by
BzrDir.

> And would simplify the check on standalone branches vs metadir
> branches (I currently check if  working_format == branch_format ==
> repo_format).

That's not the right dichotomy.  A metadir branch may be standalone.

A standalone branch is one whose repository, branch and working tree are
all stored in the same .bzr.  A metadir is a .bzr format that may or may
not contain a standalone branch.  Earlier formats could only contain
standalone branches.

Aaron
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