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Added support for expanding environment variables in paths, and tilde expansion on Windows.

pull/5184/head
Niels Keurentjes 2016-04-12 23:07:58 +02:00
parent 2e2cec29bd
commit 7e71b2bfbc
2 changed files with 36 additions and 18 deletions
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41
src/Composer/Util/Platform.php
View File

@ -20,29 +20,36 @@ namespace Composer\Util;
class Platform
{
/**
* Parses magic constructs like tildes in paths. Right now only tildes are supported but we could add support for
* environment variables on various platforms.
* Parses tildes and environment variables in paths.
*
* @param string $path
* @return string
*/
public static function expandPath($path)
{
// Tilde expansion for *nix
if (!self::isWindows() && 0 === strpos($path, '~/')) {
if (function_exists('posix_getuid') && function_exists('posix_getpwuid')) {
$info = posix_getpwuid(posix_getuid());
$home = $info['dir'];
} else {
$home = getenv('HOME');
}
// Cannot be empty or FALSE
if (!$home) {
throw new \RuntimeException(sprintf('No home folder found to expand ~ with in %s', $path));
}
$path = $home . substr($path, 1);
if (preg_match('#^~[/\\\\]#', $path)) {
return self::getUserDirectory() . substr($path, 1);
}
return $path;
return preg_replace_callback(self::isWindows() ? '#^(%(\\w+)%)[/\\\\]#' : '#^(\\$(\\w+))/#', function($matches) {
return getenv($matches[2]) . DIRECTORY_SEPARATOR;
}, $path);
}
/**
* @return string The formal user home as detected from environment parameters
* @throws \RuntimeException If the user home could not reliably be determined
*/
public static function getUserDirectory()
{
if (false !== ($home = getenv('HOME'))) {
return $home;
} elseif (self::isWindows() && false !== ($home = getenv('USERPROFILE'))) {
return $home;
} elseif (function_exists('posix_getuid') && function_exists('posix_getpwuid')) {
$info = posix_getpwuid(posix_getuid());
return $info['dir'];
}
throw new \RuntimeException('Could not determine user directory');
}
/**
@ -52,4 +59,4 @@ class Platform
{
return defined('PHP_WINDOWS_VERSION_BUILD');
}
}
}

13
tests/Composer/Test/Util/PlatformTest.php
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@ -21,7 +21,18 @@ use Composer\Util\Platform;
*/
class PlatformTest extends \PHPUnit_Framework_TestCase
{
public function testWindows()
public function testExpandPath()
{
putenv('TESTENV=/home/test');
if (Platform::isWindows()) {
$this->assertEquals('/home/test/myPath', Platform::expandPath('%TESTENV%/myPath'));
} else {
$this->assertEquals('/home/test/myPath', Platform::expandPath('$TESTENV/myPath'));
}
$this->assertEquals((getenv('HOME') ?: getenv('USERPROFILE')) . DIRECTORY_SEPARATOR . 'test', Platform::expandPath('~/test'));
}
public function testIsWindows()
{
// Compare 2 common tests for Windows to the built-in Windows test
$this->assertEquals(('\\' === DIRECTORY_SEPARATOR), Platform::isWindows());