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@ -19,6 +19,32 @@ namespace Composer\Util;
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*/
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class Platform
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{
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/**
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* Parses magic constructs like tildes in paths. Right now only tildes are supported but we could add support for
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* environment variables on various platforms.
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*
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* @param string $path
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* @return string
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*/
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public static function expandPath($path)
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{
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// Tilde expansion for *nix
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if (!self::isWindows() && 0 === strpos($path, '~/')) {
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if (function_exists('posix_getuid') && function_exists('posix_getpwuid')) {
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$info = posix_getpwuid(posix_getuid());
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$home = $info['dir'];
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} else {
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$home = getenv('HOME');
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}
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// Cannot be empty or FALSE
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if (!$home) {
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throw new \RuntimeException(sprintf('No home folder found to expand ~ with in %s', $path));
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}
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$path = $home . substr($path, 1);
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}
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return $path;
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}
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/**
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* @return bool Whether the host machine is running a Windows OS
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*/
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@ -26,4 +52,4 @@ class Platform
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{
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return defined('PHP_WINDOWS_VERSION_BUILD');
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}
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}
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}
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