excusefinder: Support not having arch-all buildds

On some distros (Ubuntu), arch:all packages are built along with one of
the architectures. We shouldn't be listing 'all' as its own arch in this
case. Instead we filter out the binaries except for on the
'all_buildarch'.

britney.conf

@@ -33,6 +33,9 @@ NOBREAKALL_ARCHES = i386 amd64
 # primary architecture used for checking Build-Depends-Indep
 ALL_BUILDARCH     = amd64
 
+# is arch-all built separately? i.e. can it fail independently of another arch?
+HAS_ARCH_ALL_BUILDDS = yes
+
 # if you're in this list, your packages may not stay in sync with the source
 OUTOFSYNC_ARCHES  =
 

britney.py

@@ -517,6 +517,8 @@ class Britney(object):
         if not hasattr(self.options, 'adt_retry_url_mech'):
             self.options.adt_retry_url_mech = ''
 
+        self.options.has_arch_all_buildds = getattr(self.options, 'has_arch_all_buildds', 'yes') == 'yes'
+
         self._policy_engine.add_policy(DependsPolicy(self.options, self.suite_info))
         self._policy_engine.add_policy(RCBugPolicy(self.options, self.suite_info))
         if getattr(self.options, 'piuparts_enable', 'yes') == 'yes':

britney2/excusefinder.py

@@ -327,6 +327,7 @@ class ExcuseFinder(object):
         # at this point, we check the status of the builds on all the supported architectures
         # to catch the out-of-date ones
         archs_to_consider = list(self.options.architectures)
+        if self.options.has_arch_all_buildds:
             archs_to_consider.append('all')
         for arch in archs_to_consider:
             oodbins = {}
@@ -345,13 +346,20 @@ class ExcuseFinder(object):
                 binary_u = all_binaries[pkg_id]
                 pkgsv = binary_u.source_version
 
-                # arch:all packages are treated separately from arch:arch
+                # arch:all packages are treated separately from arch:arch if
+                # they have their own buildds
+                if self.options.has_arch_all_buildds:
                     if binary_u.architecture != arch:
                         continue
 
                 # TODO filter binaries based on checks below?
                 excuse.add_package(pkg_id)
 
+                # If we don't have arch:all buildds, drop arch:all packages on
+                # the non-arch-all-buildd arch
+                if not self.options.has_arch_all_buildds and arch != self.options.all_buildarch and binary_u.architecture != arch:
+                    continue
+
                 # if it wasn't built by the same source, it is out-of-date
                 # if there is at least one binary on this arch which is
                 # up-to-date, there is a build on this arch

britney2/policies/autopkgtest.py

@@ -374,7 +374,8 @@ class AutopkgtestPolicy(BasePolicy):
             verdict = PolicyVerdict.REJECTED_TEMPORARILY
             excuse.add_verdict_info(verdict, "nothing built yet, autopkgtest delayed")
 
-        if 'all' in excuse.missing_builds:
+        if (self.options.has_arch_all_buildds and 'all' in excuse.missing_builds) or \
+           (not self.options.has_arch_all_buildds and self.options.all_buildarch in excuse.missing_builds):
             self.logger.info('%s hasn''t been built for arch:all, skipping autopkgtest policy', source_name)
             verdict = PolicyVerdict.REJECTED_TEMPORARILY
             excuse.add_verdict_info(verdict, "arch:all not built yet, autopkgtest delayed")

tests/test_policy.py

@@ -47,6 +47,7 @@ def initialize_policy(test_name, policy_class, *args, **kwargs):
         adt_regression_penalty=False,
         adt_retry_url_mech='run_id',
         fake_runtime=774000,
+        has_arch_all_buildds=True,
         **kwargs)
     suite_info = Suites(
         Suite(SuiteClass.TARGET_SUITE, target, os.path.join(test_dir, target), ''),