bug symfony#9962 [Process] Fix symfony#9861 : Revert TTY mode (romainneutron)

This PR was merged into the 2.3 branch.

Discussion
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[Process] Fix symfony#9861 : Revert TTY mode

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | symfony#9861
| License       | MIT

This revert the TTY mode support for the process component

Commits
-------

160b1cf [Process] Fix symfony#9861 : Revert TTY mode

Author: fabpot

src/Symfony/Component/Process/Process.php

@@ -246,6 +246,13 @@ public function start($callback = null)
         $this->status = self::STATUS_STARTED;
 
         $this->processPipes->unblock();
+
+        if ($this->tty) {
+            $this->status = self::STATUS_TERMINATED;
+
+            return;
+        }
+
         $this->processPipes->write(false, $this->stdin);
         $this->updateStatus(false);
         $this->checkTimeout();
@@ -740,7 +747,7 @@ public function setTty($tty)
     }
 
     /**
-     * Checks if  the TTY mode is enabled.
+     * Checks if the TTY mode is enabled.
      *
      * @return Boolean true if the TTY mode is enabled, false otherwise
      */
@@ -941,7 +948,7 @@ public function checkTimeout()
      */
     private function getDescriptors()
     {
-        $this->processPipes = new ProcessPipes($this->useFileHandles);
+        $this->processPipes = new ProcessPipes($this->useFileHandles, $this->tty);
         $descriptors = $this->processPipes->getDescriptors();
 
         if (!$this->useFileHandles && $this->enhanceSigchildCompatibility && $this->isSigchildEnabled()) {

src/Symfony/Component/Process/ProcessPipes.php

@@ -26,10 +26,13 @@ class ProcessPipes
     private $readBytes = array();
     /** @var Boolean */
     private $useFiles;
+    /** @var Boolean */
+    private $ttyMode;
 
-    public function __construct($useFiles = false)
+    public function __construct($useFiles, $ttyMode)
     {
         $this->useFiles = (Boolean) $useFiles;
+        $this->ttyMode = (Boolean) $ttyMode;
 
         // Fix for PHP bug #51800: reading from STDOUT pipe hangs forever on Windows if the output is too big.
         // Workaround for this problem is to use temporary files instead of pipes on Windows platform.
@@ -108,6 +111,14 @@ public function getDescriptors()
             );
         }
 
+        if ($this->ttyMode) {
+            return array(
+                array('file', '/dev/tty', 'r'),
+                array('file', '/dev/tty', 'w'),
+                array('file', '/dev/tty', 'w'),
+            );
+        }
+
         return array(
             array('pipe', 'r'), // stdin
             array('pipe', 'w'), // stdout