From 3fbcb965d0e7d2b9ea50075a47e623e647e5771e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gabriel=20Ostroluck=C3=BD?= <gabriel.ostrolucky@gmail.com>
Date: Sun, 17 Feb 2019 18:39:16 +0100
Subject: [PATCH] Remove unnecessary ProgressBar stdout writes (fixes
 flickering)

---
 .../Component/Console/Helper/ProgressBar.php        | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/src/Symfony/Component/Console/Helper/ProgressBar.php b/src/Symfony/Component/Console/Helper/ProgressBar.php
index a1c3cc5d217e..172565514128 100644
--- a/src/Symfony/Component/Console/Helper/ProgressBar.php
+++ b/src/Symfony/Component/Console/Helper/ProgressBar.php
@@ -466,19 +466,16 @@ private function overwrite($message)
     {
         if ($this->overwrite) {
             if (!$this->firstRun) {
-                // Move the cursor to the beginning of the line
-                $this->output->write("\x0D");
-
-                // Erase the line
-                $this->output->write("\x1B[2K");
-
                 // Erase previous lines
                 if ($this->formatLineCount > 0) {
-                    $this->output->write(str_repeat("\x1B[1A\x1B[2K", $this->formatLineCount));
+                    $message = str_repeat("\x1B[1A\x1B[2K", $this->formatLineCount).$message;
                 }
+
+                // Move the cursor to the beginning of the line and erase the line
+                $message = "\x0D\x1B[2K$message";
             }
         } elseif ($this->step > 0) {
-            $this->output->writeln('');
+            $message = PHP_EOL.$message;
         }
 
         $this->firstRun = false;