isisd: fix add an algorithm argument to show isis route

"show isis route algorithm ALGO json" display some text output before
printing the JSON one.

Do not print the text output in JSON mode.

Fixes: 0833c25180 ("isisd: add an algorithm argument to show isis route")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>

diff --git a/isisd/isis_spf.c b/isisd/isis_spf.c
index 732853796aab88b39f08b438381146b15d47c129..466e96b3a2cc3e7161354c966d6958fe91896d20 100644 (file)
--- a/isisd/isis_spf.c
+++ b/isisd/isis_spf.c
@@ -2884,7 +2884,8 @@ static void show_isis_route_common(struct vty *vty, int levels,
                                        spftree = area->spftree[SPFTREE_IPV4]
                                                               [level - 1];
 
-                               isis_print_spftree(vty, spftree);
+                               if (!json)
+                                       isis_print_spftree(vty, spftree);
 
                                isis_print_routes(vty, spftree,
                                                  json ? &json_val : NULL,
@@ -2905,7 +2906,8 @@ static void show_isis_route_common(struct vty *vty, int levels,
                                        spftree = area->spftree[SPFTREE_IPV6]
                                                               [level - 1];
 
-                               isis_print_spftree(vty, spftree);
+                               if (!json)
+                                       isis_print_spftree(vty, spftree);
 
                                isis_print_routes(vty, spftree,
                                                  json ? &json_val : NULL,
@@ -2927,7 +2929,8 @@ static void show_isis_route_common(struct vty *vty, int levels,
                                        spftree = area->spftree[SPFTREE_DSTSRC]
                                                               [level - 1];
 
-                               isis_print_spftree(vty, spftree);
+                               if (!json)
+                                       isis_print_spftree(vty, spftree);
                                isis_print_routes(vty, spftree,
                                                  json ? &json_val : NULL,
                                                  prefix_sid, backup);