If a file is only listed in the Checksums-* fields, "entry" will be None and we
cannot call the get method to compare the size in the different fields.

This change just skips the comparison when "entry" is None. We can do this as
we later check that each entry has all required checksums (i.e. is listed in
Files and the Checksums-* fields).

Since 5390eff0 we use a few bash
features like arrays in config/debian/vars.

Still missing is everything that makes the backports archive public,
e.g. the mirror push itself.

Signed-off-by: NJoerg Jaspert <joerg@debian.org>

A .changes file might upload directly to a *-proposed-updates suite. We do not
want to append another -proposed-updates in this case.

Make sure all processes we start also run in the C locale.

queued currently parses the output from gpg to get the name of the
person who signed an upload. A better fix would be to pass --with-colon
to gpg, but as this information is only used for logging anyway...

This is intended to be used for the backports ACL to allow all buildd
keys to upload.

Bug: http://bugs.debian.org/657212

dak show-deferred now runs as dak-unpriv and needs a (read-only) database
connection.

We also need to run show-deferred as dak-unpriv as it changes
permissions of some files in the deferred queues.

The dak-unpriv user needs to be able to write these files.

dm-uploaders.html is huge (74 MB) which makes is unusable. DM upload
permissions can now be seen in dm.txt.

Files on incoming.debian.org only exist for a short while so it makes no
sense to have them indexed.

The map variant established multiple database connections in each worker
exceeding the maximum number of connections configured in PostgreSQL.
apply_async doesn't have this problem with our wrapper in DakProcessPool.

However as a regression we longer have a timeout and always have to wait for
the job to finish. This could be worked around by using the timeout function
for individual results.

We want examine_package.use_html to be set everywhere. So we have to
change it before we create the worker pool.

This was broken by 24cb4fe2 where the
worker pool was setup earlier.

As dak/examine_package.py is also used by process-new we cannot run
lintian unconditionally as the unprivileged user. Therefore move the
Unpriv{User,Group} setting from the database to a (group-specific)
dak.conf.

This also creates a new ACL which is not fun to do by hand.