!1331 Add user-defined code structure python interface.

From: @liuchongming74
Reviewed-by: @yelihua,@ouwenchang
Signed-off-by: @ouwenchang

mindinsight/mindconverter/__init__.py

@@ -18,3 +18,8 @@ MindConverter.
 MindConverter is a migration tool to transform the model scripts from PyTorch to Mindspore.
 Users can migrate their PyTorch models to Mindspore rapidly with minor changes according to the conversion report.
 """
+
+__all__ = ["user_defined_pattern", "main_entry"]
+
+from mindinsight.mindconverter.cli import run as main_entry
+from mindinsight.mindconverter.graph_based_converter.sub_graph_searcher.built_in_pattern import user_defined_pattern

mindinsight/mindconverter/cli.py

@@ -387,13 +387,13 @@ def cli_entry():
     if args.report is None:
         args.report = args.output
     os.makedirs(args.report, mode=mode, exist_ok=True)
-    _run(args.in_file, args.model_file,
-         args.shape,
-         args.input_nodes, args.output_nodes,
-         args.output, args.report)
+    run(args.in_file, args.model_file,
+        args.shape,
+        args.input_nodes, args.output_nodes,
+        args.output, args.report)
 
 
-def _run(in_files, model_file, shape, input_nodes, output_nodes, out_dir, report):
+def run(in_files, model_file, shape, input_nodes, output_nodes, out_dir, report):
     """
     Run converter command.
 

mindinsight/mindconverter/graph_based_converter/sub_graph_searcher/search_path.py

@@ -710,12 +710,28 @@ class ReplacePath(BasePath):
         Args:
             increment_idx (int): To deduplicate module name.
         """
-        src = ",".join(self.topo_order_bef_repl)
-        tgt = self.pattern.pattern
         md_name = f"Module{increment_idx}"
-        src_aft_repl = src.replace(tgt, md_name)
-        if src != src_aft_repl:
+        new_order = []
+        idx = 0
+        merged = False
+        while idx < len(self.topo_order_bef_repl):
+            op_node = self.topo_order_bef_repl[idx]
+            if op_node.op_type == self.pattern.head:
+                windowed_nodes = self.topo_order_bef_repl[idx:idx + self.pattern.ptn_length]
+                cur_window = ",".join([nd.op_type for nd in windowed_nodes])
+                if cur_window == self.pattern.pattern:
+                    merged_node = MergedONNXNode(name="", module_name=md_name,
+                                                 ori_nodes=windowed_nodes, inputs="", outputs="",
+                                                 known_module_name=self.pattern.known_module_name)
+                    new_order.append(merged_node)
+                    idx += self.pattern.ptn_length
+                    merged = True
+                    continue
+            new_order.append(op_node)
+            idx += 1
+
+        if merged:
             self.pattern.module_name = md_name
-            self.topo_order_aft_repl = src_aft_repl.split(",")
+            self.topo_order_aft_repl = new_order
             return md_name
         return None

mindinsight/mindconverter/graph_based_converter/sub_graph_searcher/searcher.py

@@ -438,8 +438,8 @@ def greedy_match(topo_order, user_defined_ptn):
     """
     increment_idx = 0
     prev_path = None
-    for md_name, ptn in user_defined_ptn:
-        ptn = Pattern(",".join(ptn), len(ptn), -1, -1, ptn)
+    for md_name, ptn_items in user_defined_ptn.items():
+        ptn = Pattern(",".join(ptn_items), len(ptn_items), -1, -1, ptn_items)
         ptn.known_module_name = md_name
         topo_order_aft_rpl = topo_order[:] if prev_path is None else prev_path.topo_order_aft_repl
         repl_path = ReplacePath(ptn, topo_order_aft_rpl, prev_path=prev_path)