Best way to check if a directory is an brz branch

[Nicholas Allen]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

I'm wondering what's the best way to check if a directory on the file
system is a Bazaar branch. At the moment I do something like:

if os.path.isdir(os.path.join(directory, '.bzr/branch')):

but this seems overly tied to the implementation details of Bazaar. I
couldn't find a method to do this. One way would be to try to open a
branch for a directory and catch exceptions but that seems inefficient
and would also fail if there was a problem with the branch itself.

I expected a static method in Branch or BzrDir to check this. eg
is_branch(directory).

Cheers,

Nick
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkmapKQACgkQ1+i51gqqEGnBZACfTB5huiMSt0yJf83RAPNjXhhj
nPwAn3UeredNoqyMnYjYvDy5S3b4pKvH
=xEB/
-----END PGP SIGNATURE-----