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@ -14,6 +14,7 @@ namespace Composer\Util;
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use RecursiveDirectoryIterator;
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use RecursiveIteratorIterator;
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use Symfony\Component\Filesystem\Exception\IOException;
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use Symfony\Component\Finder\Finder;
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/**
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@ -98,6 +99,10 @@ class Filesystem
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return $this->unlinkSymlinkedDirectory($directory);
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}
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if ($this->isJunction($directory)) {
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return $this->removeJunction($directory);
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}
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if (!file_exists($directory) || !is_dir($directory)) {
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return true;
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}
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@ -576,4 +581,64 @@ class Filesystem
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return $resolved;
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}
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/**
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* Creates an NTFS junction.
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*
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* @param string $target
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* @param string $junction
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*/
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public function junction($target, $junction)
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{
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if (!Platform::isWindows()) {
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throw new \LogicException(sprintf('Function %s is not available on non-Windows platform', __CLASS__));
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}
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if (!is_dir($target)) {
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throw new IOException(sprintf('Cannot junction to "%s" as it is not a directory.', $target), 0, null, $target);
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}
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$cmd = sprintf('mklink /J %s %s',
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ProcessExecutor::escape(str_replace('/', DIRECTORY_SEPARATOR, $junction)),
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ProcessExecutor::escape(realpath($target)));
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if ($this->getProcess()->execute($cmd, $output) !== 0) {
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throw new IOException(sprintf('Failed to create junction to "%s" at "%s".', $target, $junction), 0, null, $target);
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}
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}
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/**
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* Returns whether the target directory is a Windows NTFS Junction.
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*
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* @param string $junction Path to check.
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* @return bool
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*/
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public function isJunction($junction)
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{
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if (!Platform::isWindows()) {
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return false;
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}
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if (!is_dir($junction) || is_link($junction)) {
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return false;
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}
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// Junctions have no link stat but are otherwise indistinguishable from real directories
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$stat = lstat($junction);
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return ($stat['mode'] === 0);
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}
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/**
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* Removes a Windows NTFS junction.
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*
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* @param string $junction
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* @return bool
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*/
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public function removeJunction($junction)
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{
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if (!Platform::isWindows()) {
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return false;
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}
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$junction = rtrim(str_replace('/', DIRECTORY_SEPARATOR, $junction), DIRECTORY_SEPARATOR);
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if (!$this->isJunction($junction)) {
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throw new IOException(sprintf('%s is not a junction and thus cannot be removed as one', $junction));
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}
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$cmd = sprintf('rmdir /S /Q %s', ProcessExecutor::escape($junction));
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return ($this->getProcess()->execute($cmd, $output) === 0);
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}
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}
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