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@ -20,29 +20,36 @@ namespace Composer\Util;
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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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* Parses tildes and environment variables in paths.
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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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if (preg_match('#^~[/\\\\]#', $path)) {
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return self::getUserDirectory() . substr($path, 1);
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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', $path));
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return preg_replace_callback(self::isWindows() ? '#^(%(\\w+)%)[/\\\\]#' : '#^(\\$(\\w+))/#', function($matches) {
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return getenv($matches[2]) . DIRECTORY_SEPARATOR;
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}, $path);
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}
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$path = $home . substr($path, 1);
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/**
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* @return string The formal user home as detected from environment parameters
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* @throws \RuntimeException If the user home could not reliably be determined
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*/
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public static function getUserDirectory()
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{
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if (false !== ($home = getenv('HOME'))) {
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return $home;
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} elseif (self::isWindows() && false !== ($home = getenv('USERPROFILE'))) {
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return $home;
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} elseif (function_exists('posix_getuid') && function_exists('posix_getpwuid')) {
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$info = posix_getpwuid(posix_getuid());
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return $info['dir'];
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}
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return $path;
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throw new \RuntimeException('Could not determine user directory');
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}
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/**
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