If the directory is read-only, use the systems tmp directory for generated py files.

diff --git a/grc/python/Generator.py b/grc/python/Generator.py
index ed7995716f1ecde6e25c5b433703f8708216c5ca..6c7025443810bb9dc5acf908d78dbb7e4748944a 100644 (file)
--- a/grc/python/Generator.py
+++ b/grc/python/Generator.py
@@ -1,5 +1,5 @@
 """
-Copyright 2008, 2009 Free Software Foundation, Inc.
+Copyright 2008, 2009, 2010 Free Software Foundation, Inc.
 This file is part of GNU Radio
 
 GNU Radio Companion is free software; you can redistribute it and/or
@@ -19,6 +19,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 
 import os
 import subprocess
+import tempfile
 from Cheetah.Template import Template
 import expr_utils
 from Constants import \
@@ -45,6 +46,10 @@ class Generator(object):
                else:
                        self._mode = TOP_BLOCK_FILE_MODE
                        dirname = os.path.dirname(file_path)
+                       #handle the case where the directory is read-only
+                       #in this case, use the system's temp directory
+                       if not os.access('dirname', os.W_OK):
+                               dirname = tempfile.gettempdir()
                filename = self._flow_graph.get_option('id') + '.py'
                self._file_path = os.path.join(dirname, filename)