Merge pull request #4455 from samsaggace/config_archive

Enable command line configuration for archive-dir and archive-format

doc/06-config.md

@@ -162,7 +162,7 @@ Example:
 ```json
 {
     "config": {
-        "bin-dir": "bin"
+        "archive-dir": "/home/user/.composer/repo"
     }
 }
 ```

src/Composer/Command/ConfigCommand.php

@@ -295,6 +295,8 @@ EOT
             'notify-on-install' => array($booleanValidator, $booleanNormalizer),
             'vendor-dir' => array('is_string', function ($val) { return $val; }),
             'bin-dir' => array('is_string', function ($val) { return $val; }),
+            'archive-dir' => array('is_string', function ($val) { return $val; }),
+            'archive-format' => array('is_string', function ($val) { return $val; }),
             'cache-dir' => array('is_string', function ($val) { return $val; }),
             'cache-files-dir' => array('is_string', function ($val) { return $val; }),
             'cache-repo-dir' => array('is_string', function ($val) { return $val; }),