feature symfony#11378 Allow xdebug.file_link_format from php ini to work when xdebug extension is not loaded (frickenate, ClementGautier)

This PR was merged into the 2.6-dev branch.

Discussion
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Allow xdebug.file_link_format from php ini to work when xdebug extension is not loaded

Q | A
----------------- | ---------------
Bug fix? | yes
New feature? | no
BC breaks? | no
Deprecations? | no
Tests pass? | yes
Fixed tickets | symfony#11081
License | MIT
Doc PR | N/A

Complete the PR symfony#11081

Commits
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8b2397c Applyied code review
97e07d5 Check for xdebug link format via both ini_get and get_cfg_var

Author: fabpot

src/Symfony/Bridge/Twig/Extension/CodeExtension.php

@@ -35,7 +35,7 @@ class CodeExtension extends \Twig_Extension
      */
     public function __construct($fileLinkFormat, $rootDir, $charset)
     {
-        $this->fileLinkFormat = empty($fileLinkFormat) ? ini_get('xdebug.file_link_format') : $fileLinkFormat;
+        $this->fileLinkFormat = $fileLinkFormat ?: ini_get('xdebug.file_link_format') ?: get_cfg_var('xdebug.file_link_format');
         $this->rootDir = str_replace('\\', '/', dirname($rootDir)).'/';
         $this->charset = $charset;
     }

src/Symfony/Component/Debug/ExceptionHandler.php

@@ -349,7 +349,7 @@ private function formatPath($path, $line)
         $path = self::utf8Htmlize($path);
         $file = preg_match('#[^/\\\\]*$#', $path, $file) ? $file[0] : $path;
 
-        if ($linkFormat = ini_get('xdebug.file_link_format')) {
+        if ($linkFormat = ini_get('xdebug.file_link_format') ?: get_cfg_var('xdebug.file_link_format')) {
             $link = str_replace(array('%f', '%l'), array($path, $line), $linkFormat);
 
             return sprintf(' <a href="%s" title="Go to source">in %s line %d</a>', $link, $file, $line);