Check all groups for permission

git-svn-id: http://svn.savannah.nongnu.org/svn/rdiff-backup@529 2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109

trunk/rdiff-backup/CHANGELOG

@@ -10,6 +10,9 @@ Fix by Dean Gaudet for --calculate-average mode (it broke somewhere in
 Fix for regress warning code:  rdiff-backup should warn you if you are
 trying to back up a directory into itself.
 
+Now when determining group permissions check supplementary groups as
+well as main group.  (Bug report by Ryan Castle.)
+
 
 New in v0.13.4 (2004/01/31)
 ---------------------------

trunk/rdiff-backup/rdiff_backup/Globals.py

@@ -49,6 +49,7 @@ server = None
 # vary depending on the connection.
 process_uid = os.getuid()
 process_gid = os.getgid()
+process_groups = os.getgroups()
 
 # If true, when copying attributes, also change target's uid/gid
 change_ownership = None

trunk/rdiff-backup/rdiff_backup/rpath.py

@@ -840,8 +840,8 @@ class RPath(RORPath):
 		return uid == 0 or uid == self.data['uid']
 
 	def isgroup(self):
-		"""Return true if current process is in group of rp"""
-		return self.conn.Globals.get('process_gid') == self.data['gid']
+		"""Return true if process has group of rp"""
+		return self.data['gid'] in self.conn.Globals.get('process_groups')
 
 	def delete(self):
 		"""Delete file at self.path.  Recursively deletes directories."""