The practice of '-' in the directory name, but not in the filename comes
from the other code that I use in the publishing of images.  Ie, that is
(or at least should be) consistent with other ubuntu releases.

I'm not actually sure how the where the symlink for directory name
'beta1' -> beta-1 came from (ie, in the directory listing at
http://uec-images.ubuntu.com/server/releases/lucid/).

It appears to me that the query data consistently references files using
'beta-1' rather than 'beta1'.  One way or another, the query data gives
you a hassle free path into all of this.  You shouldn't have to worry
about a 'label' -> 'filename' or label -> path conversion as the data
provides it for you.

In query, there will not be hyphens in label names. (but I won't make
promises about path names).

I did change the file naming convention once, and that ticked some people
off.  I believe that we should be able to stick to
<suite>-<buildname>-uec-<arch>.tar.gz for a while.  Again, hopefully even
if I changed it, the query would provide you with the correct data.

One thing that I'm not terribly happy with is that for dailies, the
<suite>-<buildname>-uec-<arch>.tar.gz contains files named like
"<suite>-<buildname>-uec-<arch>", but for published builds, the contents
of the tarball are still '<suite>-<buildname>-uec-<arch>', but the tarfile
name has changed.

That is a side effect of the fact that "promote-daily" doesn't change
anything that was MD5SUMed.   Ie, the build that was a daily produced a
<suite>-<buildname>-uec-<arch>.tar.gz , and that was simply copied and
renamed to
ubuntu-<suite>-<version>-<label>-<arch>-<buildname>-<serial>.

The inconsistencies that you find are a result of happening as they went,
not purely designed from the beginning.

So, in summary, if you use data in /query, then you shouldn't have to
worry about this stuff.