ignore gpg key import errors

Some projects use the same gpg key. To avoid osc from quitting when
building against two or more such projects at the same time ignore
gpg key import errors as long as at least one key could be imported.

osc/checker.py

@@ -26,7 +26,13 @@ class Checker:
     def readkeys(self, keys=[]):
         rpm.addMacro('_dbpath', self.dbdir)
         for key in keys:
-            self.readkey(key)
+            try:
+                self.readkey(key)
+            except KeyError, e:
+                print e
+
+        if not len(self.imported):
+            raise KeyError('', "no key imported")
 
         rpm.delMacro("_dbpath")
 

osc/fetch.py

@@ -218,8 +218,9 @@ class Fetcher:
             url = "%s/source/%s/_pubkey" % (buildinfo.apiurl, i)
             try:
                 OscFileGrabber().urlgrab(url, dest)
-                buildinfo.keys.append(dest)
-                buildinfo.prjkeys.append(i)
+                if not i in buildinfo.prjkeys: # not that many keys usually
+                    buildinfo.keys.append(dest)
+                    buildinfo.prjkeys.append(i)
             except KeyboardInterrupt:
                 print 'Cancelled by user (ctrl-c)'
                 print 'Exiting.'