web2py/.../task.py: add some indications on the moficifations to make for new preprocess setup

server/web2py/applications/vidjil/models/task.py

@@ -811,6 +811,11 @@ def run_pre_process(pre_process_id, sequence_file_id, clean_before=True, clean_a
             cmd = cmd.replace( "&file2&", defs.DIR_SEQUENCES + sequence_file.data_file2)
         cmd = cmd.replace( "&result&", output_file)
         cmd = cmd.replace("&pear&", defs.DIR_PEAR)
+        # Example of template to add some preprocess shortcut
+        # cmd = cmd.replace("&preprocess_template&", defs.DIR_preprocess_template)
+        # Where &preprocess_template& is the shortcut to change and
+        # defs.DIR_preprocess_template the variable to set into the file defs.py. 
+        # The value should be the path to access to the preprocess software.
 
         print("=== Pre-process %s ===" % pre_process_id)
         print(cmd)