Print nothing when search result is empty

This change affects both text and json formats. Now, text format
behaves as before commit 6dcb7592, but json format is changed.
Earlier, the empty search returned '[]', now it returns ''. The emacs
interface seems not to be affected by this change.

1 files changed, 12 insertions, 6 deletions

diff --git a/notmuch-search.c b/notmuch-search.c
index 5907c2ee..bb989dac 100644
--- a/notmuch-search.c
+++ b/notmuch-search.c
@@ -189,7 +189,9 @@ do_search_threads (const void *ctx,
     {
 	int first_tag = 1;
 
-	if (! first_thread)
+	if (first_thread)
+	    fputs (format->results_start, stdout);
+	else
 	    fputs (format->item_sep, stdout);
 
 	thread = notmuch_threads_get (threads);
@@ -235,6 +237,9 @@ do_search_threads (const void *ctx,
 	notmuch_thread_destroy (thread);
     }
 
+    if (! first_thread)
+	fputs (format->results_end, stdout);
+
     return 0;
 }
 
@@ -258,7 +263,9 @@ do_search_messages (const void *ctx,
     {
 	message = notmuch_messages_get (messages);
 
-	if (! first_message)
+	if (first_message)
+	    fputs (format->results_start, stdout);
+	else
 	    fputs (format->item_sep, stdout);
 
 	if (output == OUTPUT_FILES) {
@@ -276,6 +283,9 @@ do_search_messages (const void *ctx,
 
     notmuch_messages_destroy (messages);
 
+    if (! first_message)
+	fputs (format->results_end, stdout);
+
     return 0;
 }
 
@@ -415,8 +425,6 @@ notmuch_search_command (void *ctx, int argc, char *argv[])
 
     notmuch_query_set_sort (query, sort);
 
-    fputs (format->results_start, stdout);
-
     switch (output) {
     default:
     case OUTPUT_SUMMARY:
@@ -432,8 +440,6 @@ notmuch_search_command (void *ctx, int argc, char *argv[])
 	break;
     }
 
-    fputs (format->results_end, stdout);
-
     notmuch_query_destroy (query);
     notmuch_database_close (notmuch);