Move updating of excuses into policies

It is unwieldy to have one half of output data generation in the policy but not
the other half of updating the excuse. Now that apply_policy() gets the excuse
object as argument we can move everything there.

Signed-off-by: Niels Thykier <niels@thykier.net>

britney.py

@@ -1620,46 +1620,11 @@ class Britney(object):
         if policy_verdict.is_rejected:
             update_candidate = False
 
-        # Joggle some things into excuses
-        # - remove once the YAML is the canonical source for this information
-        if 'age' in policy_info:
-            age_info = policy_info['age']
-            age_hint = age_info.get('age-requirement-reduced', None)
-            age_min_req = age_info['age-requirement']
-            if age_hint:
-                new_req = age_hint['new-requirement']
-                who = age_hint['changed-by']
-                if new_req:
-                    excuse.addhtml("Overriding age needed from %d days to %d by %s" % (
-                        age_min_req, new_req, who))
-                else:
-                    excuse.addhtml("Too young, but urgency pushed by %s" % who)
-            excuse.setdaysold(age_info['current-age'], age_min_req)
-
         # if the suite is unstable, then we have to check the release-critical bug lists before
         # updating testing; if the unstable package has RC bugs that do not apply to the testing
         # one, the check fails and we set update_candidate to False to block the update
-        if 'rc-bugs' in policy_info:
-            rcbugs_info = policy_info['rc-bugs']
-            new_bugs = rcbugs_info['unique-source-bugs']
-            old_bugs = rcbugs_info['unique-target-bugs']
-
-            excuse.setbugs(old_bugs, new_bugs)
-
-            if new_bugs:
-                excuse.addhtml("%s <a href=\"https://bugs.debian.org/cgi-bin/pkgreport.cgi?" \
-                               "src=%s&sev-inc=critical&sev-inc=grave&sev-inc=serious\" " \
-                               "target=\"_blank\">has new bugs</a>!" % (src, quote(src)))
-                excuse.addhtml("Updating %s introduces new bugs: %s" % (src, ", ".join(
-                    ["<a href=\"https://bugs.debian.org/%s\">#%s</a>" % (quote(a), a) for a in new_bugs])))
-                update_candidate = False
-
-            if old_bugs:
-                excuse.addhtml("Updating %s fixes old bugs: %s" % (src, ", ".join(
-                    ["<a href=\"https://bugs.debian.org/%s\">#%s</a>" % (quote(a), a) for a in old_bugs])))
-            if new_bugs and len(old_bugs) > len(new_bugs):
-                excuse.addhtml("%s introduces new bugs, so still ignored (even "
-                               "though it fixes more than it introduces, whine at debian-release)" % src)
+        if excuse.newbugs:
+            update_candidate = False
 
         if suite in ('pu', 'tpu') and source_t:
             # o-o-d(ish) checks for (t-)p-u

policies/policy.py

@@ -3,6 +3,7 @@ from enum import Enum, unique
 import apt_pkg
 import os
 import time
+from urllib.parse import quote
 
 from hints import Hint, split_into_one_hint_per_package
 
@@ -262,6 +263,8 @@ class AgePolicy(BasePolicy):
             }
             min_days = new_req
 
+        res = PolicyVerdict.PASS
+
         if days_old < min_days:
             urgent_hints = self.hints.search('urgent', package=source_name,
                                              version=source_data_srcdist.version)
@@ -270,11 +273,24 @@ class AgePolicy(BasePolicy):
                     'new-requirement': 0,
                     'changed-by': urgent_hints[0].user
                 }
-                return PolicyVerdict.PASS_HINTED
+                res = PolicyVerdict.PASS_HINTED
+            else:
+                res = PolicyVerdict.REJECTED_TEMPORARILY
+
+        # update excuse
+        age_hint = age_info.get('age-requirement-reduced', None)
+        age_min_req = age_info['age-requirement']
+        if age_hint:
+            new_req = age_hint['new-requirement']
+            who = age_hint['changed-by']
+            if new_req:
+                excuse.addhtml("Overriding age needed from %d days to %d by %s" % (
+                    age_min_req, new_req, who))
             else:
-                return PolicyVerdict.REJECTED_TEMPORARILY
+                excuse.addhtml("Too young, but urgency pushed by %s" % who)
+        excuse.setdaysold(age_info['current-age'], age_min_req)
 
-        return PolicyVerdict.PASS
+        return res
 
     def _read_dates_file(self):
         """Parse the dates file"""
@@ -475,6 +491,24 @@ class RCBugPolicy(BasePolicy):
         rcbugs_info['unique-source-bugs'] = sorted(bugs_u - bugs_t)
         rcbugs_info['unique-target-bugs'] = sorted(bugs_t - bugs_u)
 
+        # update excuse
+        new_bugs = rcbugs_info['unique-source-bugs']
+        old_bugs = rcbugs_info['unique-target-bugs']
+        excuse.setbugs(old_bugs, new_bugs)
+        if new_bugs:
+            excuse.addhtml("%s <a href=\"https://bugs.debian.org/cgi-bin/pkgreport.cgi?" \
+                           "src=%s&sev-inc=critical&sev-inc=grave&sev-inc=serious\" " \
+                           "target=\"_blank\">has new bugs</a>!" % (source_name, quote(source_name)))
+            excuse.addhtml("Updating %s introduces new bugs: %s" % (source_name, ", ".join(
+                ["<a href=\"https://bugs.debian.org/%s\">#%s</a>" % (quote(a), a) for a in new_bugs])))
+
+        if old_bugs:
+            excuse.addhtml("Updating %s fixes old bugs: %s" % (source_name, ", ".join(
+                ["<a href=\"https://bugs.debian.org/%s\">#%s</a>" % (quote(a), a) for a in old_bugs])))
+        if new_bugs and len(old_bugs) > len(new_bugs):
+            excuse.addhtml("%s introduces new bugs, so still ignored (even "
+                           "though it fixes more than it introduces, whine at debian-release)" % source_name)
+
         if not bugs_u or bugs_u <= bugs_t:
             return success_verdict
         return PolicyVerdict.REJECTED_PERMANENTLY