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[Debug] Fix case sensitivity checks #18352

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Merged
merged 1 commit into from
Mar 30, 2016
Merged

[Debug] Fix case sensitivity checks #18352

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20 changes: 15 additions & 5 deletions src/Symfony/Component/Debug/DebugClassLoader.php
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Original file line number Diff line number Diff line change
Expand Up @@ -51,15 +51,25 @@ public function __construct($classLoader)
}

if (!isset(self::$caseCheck)) {
if(!file_exists(strtolower(__FILE__))) {
$file = file_exists(__FILE__) ? __FILE__ : rtrim(realpath('.'), DIRECTORY_SEPARATOR);
$i = strrpos($file, DIRECTORY_SEPARATOR);
$dir = substr($file, 0, 1 + $i);
$file = substr($file, 1 + $i);
$test = strtoupper($file) === $file ? strtolower($file) : strtoupper($file);
$test = realpath($dir.$test);

if (false === $test || false === $i) {
// filesystem is case sensitive
self::$caseCheck = 0;
} elseif(realpath(strtolower(__FILE__)) === __FILE__) {
// filesystem is not case sensitive
} elseif (substr($test, -strlen($file)) === $file) {
// filesystem is case insensitive and realpath() normalizes the case of characters
self::$caseCheck = 1;
} else {
// filesystem is not case sensitive AND realpath() fails to normalize case
} elseif (false !== stripos(PHP_OS, 'darwin')) {
// on MacOSX, HFS+ is case insensitive but realpath() doesn't normalize the case of characters
self::$caseCheck = 2;
} else {
// filesystem case checks failed, fallback to disabling them
self::$caseCheck = 0;
}
}
}
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