Added option to skip creation of work and data directories to allow test runs...

Added option to skip creation of work and data directories to allow test runs on other machines (--no-make-dirs/-m)

mkexp

@@ -248,6 +248,9 @@ command_line.add_argument('assigns', metavar='key=value', nargs='*',
                            help='override configuration file settings')
 command_line.add_argument('--path', '-p', 
                           help='search path for default config and templates')
+command_line.add_argument('--no-make-dirs', '-m',
+                          action='store_false', dest='make_dirs',
+                          help='do not create work and data directories')
 
 args = command_line.parse_args()
 
@@ -334,20 +337,22 @@ else:
 
 # Create directory for output data if it doesn't exist
 data_dir = config['DATA_DIR']
-print "Data directory: '"+data_dir+"'"
-if not os.path.isdir(data_dir):
-    os.makedirs(data_dir)
-elif not script_dir.startswith(data_dir):
-    feedback.warning("data directory already exists")
+print "Data directory: '"+data_dir+"'"+(" (not created)" if not args.make_dirs else "")
+if args.make_dirs:
+    if not os.path.isdir(data_dir):
+        os.makedirs(data_dir)
+    elif not script_dir.startswith(data_dir):
+        feedback.warning("data directory already exists")
 
 # Create directory for running the experiment if it doesn't exist
 work_dir = config['WORK_DIR']
 if work_dir != data_dir:
-    print "Work directory: '"+work_dir+"'"
-    if not os.path.isdir(work_dir):
-        os.makedirs(work_dir)
-    else:
-        feedback.warning("work directory already exists")
+    print "Work directory: '"+work_dir+"'"+(" (not created)" if not args.make_dirs else "")
+    if args.make_dirs:
+        if not os.path.isdir(work_dir):
+            os.makedirs(work_dir)
+        else:
+            feedback.warning("work directory already exists")
 
 # Run template expansion