node cluster configuration file configurable via redis.conf

src/cluster.c

@@ -13,6 +13,7 @@ int clusterNodeGetSlotBit(clusterNode *n, int slot);
 sds clusterGenNodesDescription(void);
 clusterNode *clusterLookupNode(char *name);
 int clusterNodeAddSlave(clusterNode *master, clusterNode *slave);
+int clusterAddSlot(clusterNode *n, int slot);
 
 /* -----------------------------------------------------------------------------
  * Initialization

src/config.c

@@ -289,6 +289,9 @@ void loadServerConfig(char *filename) {
             if ((server.cluster_enabled = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }
+        } else if (!strcasecmp(argv[0],"cluster-config-file") && argc == 2) {
+            zfree(server.cluster.configfile);
+            server.cluster.configfile = zstrdup(argv[1]);
         } else {
             err = "Bad directive or wrong number of arguments"; goto loaderr;
         }