Add ChangeReport Interface

Added a ChangeReport Interface to allow also non VCS-Downloaders to check the status of there package

src/Composer/Command/StatusCommand.php

@@ -15,6 +15,7 @@ namespace Composer\Command;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
+use Composer\Downloader\ChangeReportInterface;
 use Composer\Downloader\VcsDownloader;
 
 /**
@@ -55,10 +56,10 @@ EOT
         foreach ($installedRepo->getPackages() as $package) {
             $downloader = $dm->getDownloaderForInstalledPackage($package);
 
-            if ($downloader instanceof VcsDownloader) {
+            if ($downloader instanceof ChangeReportInterface) {
                 $targetDir = $im->getInstallPath($package);
 
-                if ($changes = $downloader->getLocalChanges($targetDir)) {
+                if ($changes = $downloader->getLocalChanges($targetDir, $package)) {
                     $errors[$targetDir] = $changes;
                 }
             }

src/Composer/Downloader/ChangeReportInterface.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Downloader;
+
+use Composer\Package\PackageInterface;
+
+/**
+ * ChangeReport interface.
+ *
+ * @author Sascha Egerer <sascha.egerer@dkd.de>
+ */
+interface ChangeReportInterface
+{
+    /**
+     * Checks for changes to the local copy
+     *
+     * @param string $path package directory
+     * @param PackageInterface $package package instance
+     * @return string|null changes or null
+     */
+	public function getLocalChanges($path, PackageInterface $package);
+}

src/Composer/Downloader/GitDownloader.php

@@ -78,7 +78,7 @@ class GitDownloader extends VcsDownloader
     /**
      * {@inheritDoc}
      */
-    public function getLocalChanges($path)
+    public function getLocalChanges($path, PackageInterface $package)
     {
         $this->cleanEnv();
         $path = $this->normalizePath($path);

src/Composer/Downloader/HgDownloader.php

@@ -59,7 +59,7 @@ class HgDownloader extends VcsDownloader
     /**
      * {@inheritDoc}
      */
-    public function getLocalChanges($path)
+    public function getLocalChanges($path, PackageInterface $package)
     {
         if (!is_dir($path.'/.hg')) {
             return;

src/Composer/Downloader/SvnDownloader.php

@@ -52,7 +52,7 @@ class SvnDownloader extends VcsDownloader
     /**
      * {@inheritDoc}
      */
-    public function getLocalChanges($path)
+    public function getLocalChanges($path, PackageInterface $package)
     {
         if (!is_dir($path.'/.svn')) {
             return;

src/Composer/Downloader/VcsDownloader.php

@@ -22,7 +22,7 @@ use Composer\Util\Filesystem;
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
  */
-abstract class VcsDownloader implements DownloaderInterface
+abstract class VcsDownloader implements DownloaderInterface, ChangeReportInterface
 {
     protected $io;
     protected $config;
@@ -187,14 +187,6 @@ abstract class VcsDownloader implements DownloaderInterface
      */
     abstract protected function doUpdate(PackageInterface $initial, PackageInterface $target, $path);
 
-    /**
-     * Checks for changes to the local copy
-     *
-     * @param  string      $path package directory
-     * @return string|null changes or null
-     */
-    abstract public function getLocalChanges($path);
-
     /**
      * Fetches the commit logs between two commits
      *