feat: allow multiple input files

deepaas/cmd/cli.py

@@ -60,6 +60,7 @@
     fields.URL: str,
     fields.Url: str,
     fields.UUID: str,
+    fields.Field: str,
 }
 
 
@@ -159,6 +160,18 @@ def _get_model_name(model_name=None):
         sys.exit(1)
 
 
+def _get_file_args(fields_in):
+    """Function to retrieve a list of file-type fields
+    :param fields_in: mashmallow fields
+    :return: list
+    """
+    file_fields = []
+    for k, v in fields_in.items():
+        if type(v) is fields.Field:
+            file_fields.append(k)
+    return file_fields
+
+
 # Get the model name
 model_name = CONF.model_name
 
@@ -174,6 +187,10 @@ def _get_model_name(model_name=None):
 predict_args = _fields_to_dict(model_obj.get_predict_args())
 train_args = _fields_to_dict(model_obj.get_train_args())
 
+# Find which of the arguments are going to be files
+file_args = {}
+file_args['predict'] = _get_file_args(model_obj.get_predict_args())
+file_args['train'] = _get_file_args(model_obj.get_train_args())
 
 # Function to add later these arguments to CONF via SubCommandOpt
 def _add_methods(subparsers):
@@ -285,29 +302,31 @@ def main():
     if CONF.deepaas_with_multiprocessing:
         mp.set_start_method("spawn", force=True)
 
-    # TODO(multi-file): change to many files ('for' itteration)
-    if CONF.methods.__contains__("files"):
-        if CONF.methods.files:
+    # Create file wrapper for file args (if provided)
+    for farg in file_args[CONF.methods.name]:
+        if getattr(CONF.methods, farg, None):
+            fpath = conf_vars[farg]
+
             # create tmp file as later it supposed
             # to be deleted by the application
             temp = tempfile.NamedTemporaryFile()
             temp.close()
             # copy original file into tmp file
-            with open(conf_vars["files"], "rb") as f:
+            with open(fpath, "rb") as f:
                 with open(temp.name, "wb") as f_tmp:
                     for line in f:
                         f_tmp.write(line)
 
             # create file object
-            file_type = mimetypes.MimeTypes().guess_type(conf_vars["files"])[0]
+            file_type = mimetypes.MimeTypes().guess_type(fpath)[0]
             file_obj = v2_wrapper.UploadedFile(
                 name="data",
                 filename=temp.name,
                 content_type=file_type,
-                original_filename=conf_vars["files"],
+                original_filename=fpath,
             )
-            # re-write 'files' parameter in conf_vars
-            conf_vars["files"] = file_obj
+            # re-write parameter in conf_vars
+            conf_vars[farg] = file_obj
 
     # debug of input parameters
     LOG.debug("[DEBUG provided options, conf_vars]: {}".format(conf_vars))