gkeys actions: Add keys updated reporting

Report the updated/revoked keys during the update.
<rebase edit>
    Replace print() with self.output()
    Whitespace cleanup
    Create a meaningful commit message
</edit Brian Dolbec>

2 files changed, 40 insertions, 1 deletions

diff --git a/gkeys/gkeys/actions.py b/gkeys/gkeys/actions.py
index b08c54c..c06cd47 100644
--- a/gkeys/gkeys/actions.py
+++ b/gkeys/gkeys/actions.py
@@ -115,7 +115,9 @@ class Actions(ActionBase):
                 category_msgs.extend(messages)
             return (True, category_msgs)
         self.output('', "Fetching seeds for %s category.\n" %args.category)
+        success, old_gkeys = self.listseed(args)
         fetch_success, fetch_messages = self.fetchseed(args)
+        self.seeds = None
         if fetch_success is not True:
             success = False
             messages = fetch_messages
@@ -129,7 +131,21 @@ class Actions(ActionBase):
                 success = False
             else:
                 self.output('', "Update succeeded.\n")
-            messages = fetch_messages + ["Update operation:"]  + [install_messages]
+            messages = fetch_messages + [" Update operation:"] + [install_messages]
+            success, new_gkeys = self.listseed(args)
+            added_gkeys, changed_gkeys  = self.seedhandler.compare_seeds(old_gkeys, new_gkeys)
+            self.output('', "Updated revoked GKeys:")
+            if changed_gkeys:
+                for gkey in changed_gkeys:
+                    self.output(['', changed_gkeys])
+            else:
+                self.output('', "No GKeys were revoked")
+            self.output('', "Added GKeys:")
+            if added_gkeys:
+                for gkey in added_gkeys:
+                    self.output(['', added_gkeys])
+            else:
+                self.output('', "No GKeys were added")
         return (success, messages)
 
     def addseed(self, args):
diff --git a/gkeys/gkeys/seedhandler.py b/gkeys/gkeys/seedhandler.py
index de2a6ad..c7dad2e 100644
--- a/gkeys/gkeys/seedhandler.py
+++ b/gkeys/gkeys/seedhandler.py
@@ -71,6 +71,29 @@ class SeedHandler(object):
                     keyinfo[attr] = None
         return keyinfo
 
+    def compare_seeds(self, seeds1, seeds2) :
+        '''Compares two seed lists and returns the differences
+
+        @param seeds1: set of seeds to be compared
+        @param seeds2: set of seeds to be compared
+        @return added_gkeys: list of keys that are included in seed2 but not seed1
+        @return changed_gkeys: list of keys that are included in seed1 and seed2 but have been altered
+        '''
+        old_gkeys = seeds1[1]
+        new_gkeys = seeds2[1]
+        changed_gkeys = []
+        added_gkeys = []
+        if old_gkeys:
+            for new_gkey in new_gkeys:
+                for old_gkey in old_gkeys:
+                    if new_gkey.nick == old_gkey.nick and new_gkey != old_gkey:
+                        changed_gkeys.append(new_gkey)
+                if new_gkey not in old_gkeys and new_gkey not in changed_gkeys:
+                    added_gkeys.append(new_gkey)
+        else:
+            added_gkeys = new_gkeys
+        return(added_gkeys, changed_gkeys)
+
     def load_seeds(self, seedfile=None, filepath=None, refresh=False):
         '''Load seed file