From b27409fa3fbb63675845b035f69bcf6f6201f4a7 Mon Sep 17 00:00:00 2001
From: Bohung <bohung@rulingcom.com>
Date: Tue, 4 Jan 2022 10:23:28 +0800
Subject: [PATCH] Fix bug.

---
 lib/tasks/exec_command.rake | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/tasks/exec_command.rake b/lib/tasks/exec_command.rake
index 0d7868d..e1fe780 100644
--- a/lib/tasks/exec_command.rake
+++ b/lib/tasks/exec_command.rake
@@ -197,10 +197,12 @@ namespace :exec_commands do
               if data.include?("\n") || outputs.empty?
                 output_lines = data_str.split("\n")
                 first_output = output_lines[0]
-                if outputs.count != 0
-                  outputs[-1] += first_output
-                else
-                  outputs << first_output
+                if first_output
+                  if outputs.count != 0
+                    outputs[-1] += first_output
+                  else
+                    outputs << first_output
+                  end
                 end
                 new_arr = output_lines[1..-1]
                 if data_str[-1] == "\n"