From ac6afe066acd6f6f2dbd0fb33834fec9c55db24b Mon Sep 17 00:00:00 2001
From: Colin Patrick McCabe <cmccabe@alumni.cmu.edu>
Date: Mon, 16 May 2011 10:42:36 -0700
Subject: [PATCH] obsync: FileStore: test for xattr support

Signed-off-by: Colin McCabe <colin.mccabe@dreamhost.com>
---
 src/obsync/obsync.py | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/obsync/obsync.py b/src/obsync/obsync.py
index 0481dde728294..09ee39ab0bda8 100755
--- a/src/obsync/obsync.py
+++ b/src/obsync/obsync.py
@@ -36,6 +36,7 @@ import sys
 import tempfile
 import time
 import traceback
+import xattr
 
 # Command-line options
 global opts
@@ -56,6 +57,23 @@ class InvalidLocalName(Exception):
 class NonexistentStore(Exception):
     pass
 
+###### Test Extended Attribute Support #######
+def test_xattr_support(path):
+    test_file = path + "/$TEST"
+    f = open(test_file, 'w')
+    f.close
+    try:
+        xattr.set(test_file, "test", "123", namespace=xattr.NS_USER)
+        if xattr.get(test_file, "test", namespace=xattr.NS_USER) !=  "123":
+            raise Exception("test_xattr_support: failed to set an xattr and " + \
+                "read it back.")
+    except IOError, e:
+        print >>stderr, "**** ERRROR: You do not appear to have xattr support " + \
+            "at %s ****" % path
+        raise
+    finally:
+        os.unlink(test_file)
+
 ###### Helper functions #######
 def mkdir_p(path):
     try:
@@ -638,6 +656,7 @@ class FileStore(Store):
         elif (not os.path.isdir(self.base)):
             raise NonexistentStore()
         Store.__init__(self, "file://" + url)
+        test_xattr_support(self.base)
     def __str__(self):
         return "file://" + self.base
     def get_acl(self, obj):
-- 
2.39.5