Split the tpu o-o-d checks up to make them more readable

Signed-off-by: Adam D. Barratt <adam@adam-barratt.org.uk>

britney.py

@@ -1366,15 +1366,20 @@ class Britney(object):
         if suite in ['pu', 'tpu']:
             # o-o-d(ish) checks for (t-)p-u
             for arch in self.options.architectures:
-                # If the package isn't in testing or the testing
-                # package produces no packages on this architecture,
-                # then it can't be out-of-date.  We assume that if
-                # the (t-)p-u package has produced any binaries for
-                # this architecture then it is ok
-
-                if not src in self.sources["testing"] or \
-                   (len([x for x in self.sources["testing"][src][BINARIES] if x.endswith("/"+arch) and self.binaries["testing"][arch][0][x.split("/")[0]][ARCHITECTURE] != 'all' ]) == 0) or \
-                   (len([x for x in self.binaries[suite][arch][0].values() \
+                if src not in self.sources["testing"]:
+                    continue
+                    
+                # if the package in testing has no binaries on this
+                # architecture, it can't be out-of-date
+                if (len([x for x in self.sources["testing"][src][BINARIES]
+                         if x.endswith("/"+arch) and self.binaries["testing"][arch][0][x.split("/")[0]][ARCHITECTURE] != 'all' ]) == 0):
+                    continue
+                    
+                # if the (t-)p-u package has produced any binaries on
+                # this architecture then we assume it's ok. this allows for
+                # uploads to (t-)p-u which intentionally drop binary
+                # packages
+                if (len([x for x in self.binaries[suite][arch][0].values() \
                            if x[SOURCE] == src and x[SOURCEVER] == source_u[VERSION] and \
                               x[ARCHITECTURE] != 'all' ]) > 0):
                     continue