Fixes awslabs#66: runtime error: index out of range [0] with length 0

Author: guilhermeblanco

internal/google/client.go

@@ -75,7 +75,7 @@ func (c *client) GetDeletedUsers() ([]*admin.User, error) {
 // GetGroupMembers will get the members of the group specified
 func (c *client) GetGroupMembers(g *admin.Group) ([]*admin.Member, error) {
 	m := make([]*admin.Member, 0)
-	err := c.service.Members.List(g.Id).Pages(context.TODO(), func(members *admin.Members) error {
+	err := c.service.Members.List(g.Id).IncludeDerivedMembership(true).Pages(context.TODO(), func(members *admin.Members) error {
 		m = append(m, members.Members...)
 		return nil
 	})

internal/sync.go

@@ -505,13 +505,23 @@ func (s *syncGSuite) getGoogleGroupsAndUsers(googleGroups []*admin.Group) ([]*ad
 				continue
 			}
 
+			if m.Type == "GROUP" {
+				log.WithField("id", m.Email).Debug("ignoring group address")
+				continue
+			}
+
 			log.WithField("id", m.Email).Debug("get user")
 			q := fmt.Sprintf("email:%s", m.Email)
 			u, err := s.google.GetUsers(q) // TODO: implement GetUser(m.Email)
 			if err != nil {
 				return nil, nil, err
 			}
 
+			if len(u) == 0 {
+				log.WithField("email", m.Email).Debug("Ignoring Unknown User")
+				continue
+			}
+
 			membersUsers = append(membersUsers, u[0])
 
 			_, ok := gUniqUsers[m.Email]