Remove cmp_to_key functions

gajim/common/caps_cache.py

@@ -108,37 +108,16 @@ def compute_caps_hash(identities, features, dataforms=None, hash_method='sha-1')
     """
     if dataforms is None:
         dataforms = []
-    def sort_identities_func(i1, i2):
-        cat1 = i1['category']
-        cat2 = i2['category']
-        if cat1 < cat2:
-            return -1
-        if cat1 > cat2:
-            return 1
-        type1 = i1.get('type', '')
-        type2 = i2.get('type', '')
-        if type1 < type2:
-            return -1
-        if type1 > type2:
-            return 1
-        lang1 = i1.get('xml:lang', '')
-        lang2 = i2.get('xml:lang', '')
-        if lang1 < lang2:
-            return -1
-        if lang1 > lang2:
-            return 1
-        return 0
-
-    def sort_dataforms_func(d1, d2):
-        f1 = d1.getField('FORM_TYPE')
-        f2 = d2.getField('FORM_TYPE')
-        if f1 and f2 and (f1.getValue() < f2.getValue()):
-            return -1
-        return 1
+
+    def sort_identities_key(i):
+        return (i['category'], i.get('type', ''), i.get('xml:lang', ''))
+
+    def sort_dataforms_key(dataform):
+        f = dataform.getField('FORM_TYPE')
+        return (bool(f), f.getValue())
 
     S = ''
-    from functools import cmp_to_key
-    identities.sort(key=cmp_to_key(sort_identities_func))
+    identities.sort(key=sort_identities_key)
     for i in identities:
         c = i['category']
         type_ = i.get('type', '')
@@ -148,7 +127,7 @@ def compute_caps_hash(identities, features, dataforms=None, hash_method='sha-1')
     features.sort()
     for f in features:
         S += '%s<' % f
-    dataforms.sort(key=cmp_to_key(sort_dataforms_func))
+    dataforms.sort(key=sort_dataforms_key)
     for dataform in dataforms:
         # fields indexed by var
         fields = {}

gajim/common/contacts.py

@@ -28,8 +28,6 @@
 ## along with Gajim. If not, see <http://www.gnu.org/licenses/>.
 ##
 
-from functools import cmp_to_key
-
 try:
     from gajim.common import caps_cache
     from gajim.common.account import Account
@@ -788,88 +786,29 @@ class MetacontactManager():
                     answers.append(data)
         return answers
 
-    def _compare_metacontacts(self, data1, data2):
+    def _metacontact_key(self, data):
         """
-        Compare 2 metacontacts
-
         Data is {'jid': jid, 'account': account, 'order': order} order is
         optional
         """
-        jid1 = data1['jid']
-        jid2 = data2['jid']
-        account1 = data1['account']
-        account2 = data2['account']
-        contact1 = self._contacts.get_contact_with_highest_priority(account1, jid1)
-        contact2 = self._contacts.get_contact_with_highest_priority(account2, jid2)
         show_list = ['not in roster', 'error', 'offline', 'invisible', 'dnd',
-                'xa', 'away', 'chat', 'online', 'requested', 'message']
+                     'xa', 'away', 'chat', 'online', 'requested', 'message']
+
+        jid = data['jid']
+        account = data['account']
         # contact can be null when a jid listed in the metacontact data
         # is not in our roster
-        if not contact1:
-            if contact2:
-                return -1 # prefer the known contact
-            else:
-                show1 = 0
-                priority1 = 0
-        else:
-            show1 = show_list.index(contact1.show)
-            priority1 = contact1.priority
-        if not contact2:
-            if contact1:
-                return 1 # prefer the known contact
-            else:
-                show2 = 0
-                priority2 = 0
-        else:
-            show2 = show_list.index(contact2.show)
-            priority2 = contact2.priority
-        # If only one is offline, it's always second
-        if show1 > 2 and show2 < 3:
-            return 1
-        if show2 > 2 and show1 < 3:
-            return -1
-        if 'order' in data1 and 'order' in data2:
-            if data1['order'] > data2['order']:
-                return 1
-            if data1['order'] < data2['order']:
-                return -1
-        if 'order' in data1:
-            return 1
-        if 'order' in data2:
-            return -1
-        transport1 = common.app.get_transport_name_from_jid(jid1)
-        transport2 = common.app.get_transport_name_from_jid(jid2)
-        if transport2 and not transport1:
-            return 1
-        if transport1 and not transport2:
-            return -1
-        if show1 > show2:
-            return 1
-        if show2 > show1:
-            return -1
-        if priority1 > priority2:
-            return 1
-        if priority2 > priority1:
-            return -1
-        server1 = common.app.get_server_from_jid(jid1)
-        server2 = common.app.get_server_from_jid(jid2)
-        myserver1 = common.app.config.get_per('accounts', account1, 'hostname')
-        myserver2 = common.app.config.get_per('accounts', account2, 'hostname')
-        if server1 == myserver1:
-            if server2 != myserver2:
-                return 1
-        elif server2 == myserver2:
-            return -1
-        if jid1 > jid2:
-            return 1
-        if jid2 > jid1:
-            return -1
-        # If all is the same, compare accounts, they can't be the same
-        if account1 > account2:
-            return 1
-        if account2 > account1:
-            return -1
-        return 0
+        contact = self._contacts.get_contact_with_highest_priority(
+            account, jid)
+        show = show_list.index(contact.show) if contact else 0
+        priority = contact.priority if contact else 0
+        has_order = 'order' in data
+        order = data.get('order', 0)
+        transport = common.app.get_transport_name_from_jid(jid)
+        server = common.app.get_server_from_jid(jid)
+        myserver = common.app.config.get_per('accounts', account, 'hostname')
+        return (bool(contact), show > 2, has_order, order, bool(transport),
+                show, priority, server == myserver, jid, account)
 
     def get_nearby_family_and_big_brother(self, family, account):
         """
@@ -901,8 +840,7 @@ class MetacontactManager():
         Which of the family will be the big brother under wich all others will be
         ?
         """
-        family.sort(key=cmp_to_key(self._compare_metacontacts))
-        return family[-1]
+        return max(family, key=self._metacontact_key)
 
 
 if __name__ == "__main__":