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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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/**
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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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